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Sample records for batata cv monalisa

  1. Effect of preservative agents on the respiration rate of minimally processed potato (Solanum tuberosum cv. Monalisa).

    Science.gov (United States)

    Petri, E; Arroqui, C; Angós, I; Vírseda, P

    2008-04-01

    The shelf life of minimally processed potatoes (MPP) is limited by enzyme-catalyzed browning reactions, with the increase in respiration being another factor that affects quality retention of this product. Sulfites are commonly used as effective preservative agents in minimally processing potatoes, but ascorbic acid and citric acid are considered natural sulfite substitutes and more accepted by consumers. The aim of this study was to study the effect of combinations of the preservative agents cited above (sodium metabisulfite 0.1% and 0.5%; citric acid 0.1% and 0.5%; ascorbic acid 0.5%) on the respiration rate of MPP (cv. Monalisa) processed at both ambient and refrigerated temperatures. The results have revealed that there is a significant effect of dipping treatment and temperature on respiration rate of MPP. Sodium metabisulfite (SM) reduces respiratory activity up to 0.8 mL/kg/h. The addition of either citric or ascorbic acid enhanced the effect of SM on the reduction of the respiration rate of MPP. The strongest effect (up to 3.3 mL/kg/h) was observed when a combination of all 3 agents at the higher concentrations was employed at a temperature of 18 degrees C.

  2. Estresse hídrico e adubação silicatada em batata (Solanum tuberosum L.) cv. Bintje

    OpenAIRE

    Pulz, Adriano Luís [UNESP

    2007-01-01

    O presente trabalho de pesquisa teve por objetivo avaliar a influência da aplicação de silício na nutrição, tolerância ao déficit hídrico e nas características relacionadas à produtividade da cultura da batata (Solanum Tuberosun L.) cv Bintje. Os tratamentos foram constituídos da combinação da presença e ausência de aplicação de silício (0 e 283 Kg ha-1 de Si), por meio da coreeção do solo com calcário dolomítico e silicato de cálcio e magnésio, e presença e ausência de déficit hídrico (-0,02...

  3. Produtividade e principais problemas fitossanitários de cultivares de batata em Sergipe Yield and phytosanitary problems of potato cultivars in Sergipe, Brazil

    Directory of Open Access Journals (Sweden)

    Maria Urbana Corrêa Nunes

    2002-09-01

    Full Text Available Sete cultivares de batata (Solanum tuberosum L. foram avaliadas durante três anos em Itabaiana-SE, com o objetivo de verificar a potencialidade de produção à altitude de 180 m e identificar os problemas fitossanitários que afetam a produtividade. Os experimentos foram conduzidos nos meses de junho a setembro, utilizando-se o delineamento experimental de blocos ao acaso, com cinco repetições. Após a colheita foram avaliadas a produção total, comercial (tubérculos sadios e com peso mínimo de 40 g e perdas de produção decorrentes de sarna, podridão-mole, nematóide e insetos do solo. A análise conjunta das produções totais e comerciais de tubérculos revelou que as cultivares mais produtivas foram Baronesa (33,7 t/ha, Monalisa (32,7 t/ha e Elvira (31,4 t/ha. A produção comercial variou de 3,4 t/ha a 22,5 t/ha, destacando-se as cvs. Elvira e Monalisa, com rendimentos de 22,5 t/ha e 20,5 t/ha respectivamente, com apenas três pulverizações com defensivos. Os problemas fitossanitários que mais afetaram a cv. Elvira foram sarna (13,1% e nematóide das galhas (7,2%, enquanto a 'Monalisa' teve sua produção prejudicada mais pela incidência de insetos (15,1%, sarna (12,0% e nematóide (9,7%. A cv. Monalisa apresentou tubérculos com melhores características para comercialização e está sendo cultivada a nível comercial em substituição às variedades Bintje e Baraka anteriormente cultivadas na região. Os resultados indicam a potencialidade da região de Itabaiana para a produção de batata.The yield potential and main diseases affecting productivity of seven potato (Solanum tuberosum L. cvs. were evaluated during a three years period in experiments carried out at low altitude conditions of Sergipe State, Brazil. The experimental plots were located at 180 m of sea level in a Red-Yellow Podzolic sandy-clay texture soil. The experimental design was of complete randomized blocks with five replications. Tubers were sown yearly

  4. 巴西甘薯叶亲脂性成分研究%Lipophilic constituents from the leaves of Ipomoea batatas(cv. Simon)

    Institute of Scientific and Technical Information of China (English)

    罗建光; 孔令义

    2005-01-01

    巴西甘薯叶[Ipomoea batatas Lam.(cv.Simon)]的氯仿成分经反复硅胶柱层析分离得到了8个化合物,通过理化性质和波谱方法分别鉴定为:乙酰-β-香树醇(1)、木栓酮(2)、表木栓醇(3)、三十烷醇(4)、β-谷甾醇(5)、咖啡酸乙酯(6)、东莨菪素(7)和胡萝卜苷(8).其中3、4、6、7和8为首次从该植物中分得.

  5. Atividade respiratória e aspectos microbiológicos de cultivares de batatas minimamente processadas e armazenadas em diferentes temperaturas Respiratory activity and microbiological aspects of minimally processed potatoes cultivars stored at different temperatures

    Directory of Open Access Journals (Sweden)

    Maria Carolina Dario Vitti

    2010-02-01

    Full Text Available O presente trabalho teve como objetivo avaliar aspectos fisiológicos e microbiológicos de diferentes cultivares de batatas minimamente processadas. Batatas das cultivares 'Ágata', 'Asterix' e 'Monalisa' foram selecionadas, classificadas, lavadas e descascadas por abrasão, sendo em seguida cortadas em cubos, sanitizadas e centrifugadas. Depois foram colocadas em frascos herméticos e armazenadas a 5, 15 e 25°C. Foram determinadas a atividade respiratória e a produção de etileno logo após o processamento e durante 10 horas. As análises microbiológicas foram realizadas no dia do processamento e após nove, cinco e um dia de conservação, a 5, 15 e 25°C, respectivamente. Observou-se que as batatas 'Asterix' apresentaram maiores taxas respiratórias em relação às cultivares 'Ágata' e 'Monalisa', independentemente da temperatura de armazenamento. Nas temperaturas de 15 e 25oC, as batatas 'Ágata' e 'Monalisa' apresentaram comportamentos semelhantes entre si. As contagens de bactérias psicrotróficas e coliformes totais, para todas as cultivares armazenadas 5oC, mantiveram-se dentro dos limites aceitáveis durante nove dias de armazenamento. Não foram detectados coliformes a 45°C e Salmonella. Ficou evidenciada a eficiência do armazenamento a 5°C no controle da atividade metabólica e na segurança microbiológica de batatas minimamente processadas.The purpose of the present research was to evaluate physiological and microbiological aspects of different minimally processed potatoes cultivars. Potatoes cultivar 'Agata', 'Asterix' and 'Monalisa' were selected, classified, washed and abrasion peeled before being diced, sanitized and centrifuged. They were then placed in hermetically closed flasks and stored at 5, 15 and 25°C. The respiratory activity and ethylene production were determined immediately after the processing and during 10 hours. Microbiological analyses were carried out on the processing day and after one, five and

  6. Resistance levels to two strains of Potato virus Y (PVY in transgenic potatoes cv. Achat Níveis de resistência ao Potato virus Y (PVY em batata cv. Achat

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    André N. Dusi

    2001-11-01

    Full Text Available Two transgenic potato clones of cv. Achat, denominated 1P and 63P were challenged with two Potato virus Y strains (PVY O and PVY N, under greenhouse conditions, to be evaluated for resistance to these strains. Optical density values of the Elisa readings of samples from the transgenic plants were compared to readings from samples of the inoculated non-transformed plants. Clone 1P was extremely resistant to both PVY strains, reflected by not being systemically infected. Clone 63P, however, presented partial resistance to both PVY strains as local or systemic infection was delayed in some days. These results confirm the previously reported extreme resistance to PVY of clone 1P.Dois clones transgênicos de batata, derivados da cv. Achat, denominados 1P e 63P foram desafiados com duas estirpes do Potato virus Y (PVY O PVY N, em condições de casa-de-vegetação, para avaliação do nível de resistência dos clones ao vírus. Os valores de densidade óptica das leituras dos testes de Elisa foram comparados a leituras dos clones não transformados e inoculados. O clone 1P apresentou extrema resistência a ambas as estirpes, não tendo sido observada infecção sistêmica nos dois ensaios. O Clone 63P apresentou resistência parcial às duas estirpes, refletida no retardo do aparecimento de infecções sistêmicas por duas semanas. Os resultados obtidos confirmam o alto nível de resistência do clone 1P, relatado anteriormente.

  7. Efeito do CO2 e etileno no período de dormência de minitubérculos de batata cv. Macaca Effect of CO2 and ethylene on the dormancy period of potato cv. Macaca minitubers

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    Dilson Antônio Bisognin

    2007-06-01

    Full Text Available Avaliou-se o efeito do CO2 e etileno no período de dormência de minitubérculos de batata da cultivar Macaca produzidos em telado durante duas safras. Imediatamente após a colheita, os minitubérculos foram submetidos aos tratamentos de abafamento com etileno (1000 mL L-1 por 72 h; CO2 (20% por 72 h; carbureto de cálcio (200 g m-3 por 72 h; e 1-metilciclopropeno (1-MCP (1mL L-1 por 24 h (apenas na safrinha; e imersão em solução de ethephon (840 mg L-1 por 5 s. A testemunha não recebeu nenhum tratamento. O delineamento experimental foi um fatorial (safras x tratamentos no inteiramente casualizado, com quatro repetições de 15 minitubérculos. Em intervalos semanais foram avaliadas a respiração e a produção de etileno. A cada 15 dias avaliou-se o número de brotos e a percentagem de tubérculos brotados, calculando-se a área abaixo da curva de progressão. Os minitubérculos produzidos durante a safra, comparados com os da safrinha, apresentaram menor período de dormência e aumentaram a taxa respiratória durante o período de armazenamento, claramente relacionados com a brotação dos minitubérculos. O CO2 e etileno não promoveram o encurtamento, enquanto que o 1-MCP prolongou o período de dormência de minitubérculos de batata cv. Macaca.The effect of CO2 and ethylene treatments were evaluated on the dormancy period of 'Macaca' minitubers produced in greenhouse during two growing seasons. Minitubers were treated soon after harvesting. The treatments were suffocation with ethylene (1000 mL L-1 during 72 h; CO2 (20 % during 72 h; calcium carburet (200 g m-3 during 72 h; and 1-methylcyclopropene (1-MCP (1 mL L-1 during 24 h (only for second season; and immersion with 2-cloroetil fosfonic acid (840 mg L-1 during 5 s. Control minitubers did not receive any treatment. The experiment was a factorial (seasons x treatments in a randomized design, with four replications of 15 minitubers. Respiration and ethylene production were

  8. FISH analysis of chromosomes of sweet potato(Ipomoea batatas cv.Xushu No.18)%荧光原位杂交技术分析栽培种甘薯(Ipomoea batatas cv.Xushu No.18)染色体

    Institute of Scientific and Technical Information of China (English)

    汤佳立; 戚大石; 张俞; 刘慧娟; 孙健英; 曹清河; 马代夫; 李宗芸

    2010-01-01

    为了解栽培种甘薯(徐薯18,lpomoea batatas cv.Xushu No.18)的染色体结构,文章利用 45S rDNA荧光原位杂交、自身基因组荧光原位杂交和银染技术对栽培种甘薯进行分子细胞遗传学研究.银染结果显示,徐薯18问期核有6对、8对和9对银染点;45S rDNA荧光原位杂交结果显示,徐薯18染色体上有8对或9对强弱不一的45S rDNA信号;自身基因组荧光原位杂交结果表明,所有染色体的全长分布强烈而密集的杂交信号,着丝粒区、近着丝粒区和端粒区有增强的信号带.

  9. Recent results from MoNA-LISA

    Science.gov (United States)

    Spyrou, Artemisia

    2012-03-01

    Studies of the nuclear properties of nuclei close and even beyond the limits of stability have revealed exotic modes of decay and new structural characteristics. The MoNA-LISA array is used at the National Superconducting Cyclotron Laboratory at Michigan State University to study nuclei along the neutron dripline. In a typical experiment, a radioactive beam is employed to produce the neutron-unbound state of interest. This state/resonance immediately decay into a neutron, which is detected by MoNA-LISA and a remaining charged nucleus detected by the sweeper magnet detector suite. In this talk, new exciting findings from recent MoNA-LISA experiments will be presented. These include the first observation of a dineutron decay from ^16Be, the exploration of the ``south shore'' of the Island of Inversion and the first evidence of the decay of the troubling nucleus ^26O.

  10. 甘薯栽培种及其近缘野生种的DAPI核型及rDNA-FISH分析%rDNA-FISH Analysis and DAPI- karyotype of Ipomoea batatas cv.and Ipomoea hederacea Jacq

    Institute of Scientific and Technical Information of China (English)

    安婷婷; 汤佳立; 孙健英; 曹清河; 马代夫; 李宗芸

    2012-01-01

    Ipomoea batatas cv. Xushu 18 and its two wild relatives I. hederacea Jacq. from American and Hong Kong in China were studied by DAPI banding and rDNA-fluorescence in situ hybridization. The DA-PI banding showed the karyotype of I. batatas and I. hederacea Jacq. from American and Hong Kong in China are 2n=6x=90 = 72m+18sm(18SAT) with satellites on chromosome 1,3 and 6:2n = 2x=30 = 30m (4SAT);2n=2x=30 = 20m+10sm(4SAT),both with satellite on chromosome 6 and 12,respectively. The FISH data indicated that three pairs of 5S rDNA signals,located on centromere,pericentromere and the te-lomere of chromosome respectively of I. batatas (Two pairs of 45S rDNA signals, located on chromosome 6 and 12 were detected on both I. hederacea Jacq. ; While 1 pairs of 5S rDNA signals presented on chromosome 6 of I. hederacea Jacq. from Hong Kong, 2 pairs of 5S rDNA signals occurred on the chromosome 6 and 12 of that from American. Taking all the data obtained in the study, both I. hederacea Jacq. were distant from the sweet potato, and there were some differentiations in the chromosomes of the I. hederacea Jacq. from different territories.%利用DAPI显带和rDNA-FISH技术对栽培种甘薯(‘徐薯18’)(Jpomoea batatas cv.Xushu No.18)及2种不同产地近缘野生种(Ipomoea hederacea Jacq.)进行了细胞遗传学研究.DAPI核型分析表明,‘徐薯18’核型公式为2n=6x=90=72m+18sm(18SAT),随体位于第1、3、6染色体上;美国近缘野生种核型公式为2n=2x=30=30m(4SAT),香港近缘野生种核型公式为2n=2x=30=20m+ 10sm(4SAT),随体均位于第6、12染色体上.rDNA-FISH结果显示,栽培种甘薯基因组中含有3对5S rDNA位点,分别位于着丝粒区、亚着丝粒区和染色体端部;美国近缘野生种基因组中含有2对5S rDNA位点,香港近缘野生种基因组中含有1对5S rDNA位点,均位于随体部位;两种不同地域来源的近缘野生种基因组中均含有2对45S rDNA位点,分别位于第6和第12染色体上.

  11. Direct Reactions with MoNA-LISA

    Science.gov (United States)

    Kuchera, Anthony

    2016-03-01

    Nuclear reactions can be used to probe the structure of nuclei. Direct reactions, which take place on short time scales, are well-suited for experiments with beams of short-lived nuclei. One such reaction is nucleon knockout where a proton or neutron is removed from the incoming beam from the interaction with a target. Single nucleon knockout reactions have been used to study the single-particle nature of nuclear wave functions. A recent experiment at the National Superconducting Cyclotron Laboratory was performed to measure cross sections from single nucleon knockout reactions for several p-shell nuclei. Detection of the residual nucleus in coincidence with any gamma rays emitted from the target allowed cross sections to ground and excited states to be measured. Together with input from reaction theory, ab initio structure theories can be tested. Simultaneously the accuracy of knockout reaction models can be validated by detecting the knocked out neutron with the Modular Neutron Array and Large multi-Institutional Scintillator Array (MoNA-LISA). Preliminary results from this experiment will be shown. Knockout reactions can also be used to populate nuclei which are neutron unbound, thus emit neutrons nearly instantaneously. The structure of these nuclei, therefore, cannot be probed with gamma ray spectroscopy. However, with large neutron detectors like MoNA-LISA the properties of these short-lived nuclei are able to be measured. Recent results using MoNA-LISA to study the structure of neutron-rich nuclei will be presented. The author would like to acknowledge support from the NNSA and NSF.

  12. Controle da requeima em batata cv. 'Asterix' como base para modelos de previsão da doença Controlling potato cv. 'Asterix' late blight base on forecast systems

    Directory of Open Access Journals (Sweden)

    Gustavo Trentin

    2009-04-01

    Full Text Available O controle da requeima da batata requer aplicação freqüente de fungicidas, o que encarece a produção, impactando de modo desnecessário o ambiente. A utilização de modelos de previsão dessa doença permitiria reduzir as aplicações sem afetar a produção. Neste trabalho, objetivou-se avaliar os modelos "Blitecast e Prophy" como referência para o controle da requeima por fungicidas. Os experimentos foram conduzidos na primavera de 2004 e no outono de 2005, em Santa Maria, RS. Os dados meteorológicos foram medidos no centro da área experimental, a 0,10 e a 1,50 m acima da superfície do solo. Utilizaram-se diferentes valores de severidade (VS acumulada, calculada pelos modelos "Blitecast" (VS= 18, 24, 30, 36 e 42 e "Prophy" (VS= 15, 20, 25, 30 e 35 que se constituíram os tratamentos, adicionando-se o tratamento com aplicação semanal e a testemunha, sem aplicação. O delineamento foi inteiramente casualizado com quatro repetições, sendo cada parcela composta de quatro fileiras de plantas com 5 m de comprimento. Avaliou-se a severidade da requeima por parcela a cada três a cinco dias. Verificou-se que o uso do modelo "Blitecast" com 18 valores de severidade acumulados, incrementou, em pelo menos, 42,6% a produtividade de tubérculos comerciais em relação às áreas sem aplicação de fungicida e reduziu o número de aplicações em 25% nos períodos úmidos e, em 70% nos períodos secos, em relação às aplicações semanais. A eficiência de controle da requeima foi similar à obtida com aplicações semanais de fungicida nos tratamentos Bli18 e Pro15. O uso do modelo "Prophy" requer maior número de aplicações do que o "Blitecast" e não resultou em melhor controle.The control potato late blight needs a great number of fungicide sprayings. These increase the costs of cropping and cause undesirable environmental impacts. The use of forecast systems to predict disease has the potential of reducing fungicide applications

  13. Degenerescência de batata-semente básica após um ou dois períodos de cultivo

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    Daniels Julio

    2002-01-01

    Full Text Available A infecção pelo vírus do enrolamento da folha da batata (Potato leafroll virus, PLRV e pelo vírus Y da batata (Potato virus Y, PVY constitui-se na principal causa da degenerescência da batata-semente no Brasil. Durante dois períodos de cultivo, setembro a dezembro de 1999 e março a junho de 2000, avaliou-se o percentual de infeção de batata-semente básica pelo PLRV e pelo PVY, em regiões produtoras de batata do Rio Grande do Sul e de Santa Catarina. No primeiro período foram avaliadas sorologicamente (DAS-ELISA 623 amostras de nove regiões, observando-se percentagens de infeção de 17% para PVY e de 3% para PLRV. A percentagem de infeção por PVY e PLRV em cada cultivar foi, respectivamente, Baronesa 7,5 e 0,3%, Catucha 22 e 19%, Elvira 42 e 0% e Monalisa 16 e 4%. No plantio do segundo período usou-se parte dos tubérculos colhidos no primeiro, e foram avaliadas 301 amostras de duas regiões, constatando-se uma percentagem média de infeção de 58% para o PVY e de 11% para PLRV. A percentagem, por cultivar, foi Baronesa 67 e 6%, Catucha 68 e 49%, Elvira 94 e 2% e Monalisa 35 e 0%.

  14. Reação de cultivares de batata a Streptomyces scabies, agente causal da sarna comum profunda Reaction of potato cultivars to Streptomyces scabies, causal agent of deep common scab

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    Ivan Herman Fischer

    2009-09-01

    Full Text Available Este trabalho visou caracterizar quanto a critérios morfológicos e fisiológicos isolados de Streptomyces causadores de sarna comum profunda em batata; avaliar o comportamento de cultivares em relação à doença e a variação na agressividade entre os isolados da bactéria. Os isolados de Streptomyces apresentaram coloração cinza em meio extrato de levedura e malte e cadeias de esporos espiraladas, produzidas sobre um micélio aéreo. Ocorreu produção de melanina em meio de tirosina-ágar e a utilização de oito fontes de carbono recomendadas, propriedades estas que correspondem às descritas para S. scabies. Batatas-semente sadias de seis cultivares foram plantadas em substrato infestado com seis isolados de S. scabies separadamente e as plantas cultivadas em vasos e ambiente aberto. A severidade da doença foi estimada com auxílio de uma escala diagramática e avaliou-se o rendimento de tubérculos (g/planta. As cvs. Mondial e Jaete Bintje foram as mais resistentes à sarna comum com severidade média nos dois experimentos de 10,5% e 14,0%, respectivamente, seguidas por Asterix (17,4%, Ágata (21,8%, Monalisa (23,0% e Cupido (23,3%. A agressividade dos isolados variou quantitativamente, com severidade maior para o isolado M4 (34,7% e menor para o isolado M1 (6,2%. Redução da produção de tubérculos foi verificada na cv. Jaete Bintje, no primeiro experimento, e quando as cultivares foram infectadas pelos isolados A1, M2 e M3, no primeiro experimento, e pelo isolado M4, no segundo experimento.This work aimed to characterize the isolates of Streptomyces, responsible for deep common scab symptoms in potato, according to morphological and physiological criteria; to evaluate the resistance of potato cultivars to the disease and the aggressiveness of bacterium isolates. The Streptomyces isolates presented gray coloration on yeast extract and malt medium and spiral spore chains, produced on aerial hyphae. Production of melanina occurred

  15. Modeling neutron events in MoNA-LISA using MCNPX

    Science.gov (United States)

    Elliston, Margaret; Peters, Alexander; Stryker, Kristen; Stephenson, Sharon; MoNA Collaboration

    2011-10-01

    The MoNA-LISA collaboration uses time-of-flight techniques and charged particle detectors to determine the structure of exotic nuclei such as 24 O and 12 Be . To determine the decay energy in particular, a neutron that hits the Modular Neutron Array and the Large multi-Institutional Scintillator Array has its energy, position and angle of incidence recorded if and only if the charged particle detector system detects an appropriate charged-particle fragment. However, the analysis uses only the first neutron to hit the detector array even in the case of 2n events, since the data acquisition system cannot distinguish between simultaneous but random 2n events and events due to 2n reactions. We are using MCNPX to model the reaction channels possible in the MoNA-LISA detector system in an effort to better improve the resolution on decay energy spectra for events with multiple neutrons. This work was supported in part by US National Science Foundation Award 0922335.

  16. MonALISA: An agent based, dynamic service system to monitor, control and optimize distributed systems

    Science.gov (United States)

    Legrand, I.; Newman, H.; Voicu, R.; Cirstoiu, C.; Grigoras, C.; Dobre, C.; Muraru, A.; Costan, A.; Dediu, M.; Stratan, C.

    2009-12-01

    The MonALISA (Monitoring Agents in a Large Integrated Services Architecture) framework provides a set of distributed services for monitoring, control, management and global optimization for large scale distributed systems. It is based on an ensemble of autonomous, multi-threaded, agent-based subsystems which are registered as dynamic services. They can be automatically discovered and used by other services or clients. The distributed agents can collaborate and cooperate in performing a wide range of management, control and global optimization tasks using real time monitoring information. Program summaryProgram title: MonALISA Catalogue identifier: AEEZ_v1_0 Program summary URL:http://cpc.cs.qub.ac.uk/summaries/AEEZ_v1_0.html Program obtainable from: CPC Program Library, Queen's University, Belfast, N. Ireland Licensing provisions: Caltech License - free for all non-commercial activities No. of lines in distributed program, including test data, etc.: 147 802 No. of bytes in distributed program, including test data, etc.: 2 5913 689 Distribution format: tar.gz Programming language: Java, additional APIs available in Java, C, C++, Perl and python Computer: Computing Clusters, Network Devices, Storage Systems, Large scale data intensive applications Operating system: The MonALISA service is mainly used in Linux, the MonALISA client runs on all major platforms (Windows, Linux, Solaris, MacOS). Has the code been vectorized or parallelized?: It is a multithreaded application. It will efficiently use all the available processors. RAM: for the MonALISA service the minimum required memory is 64 MB; if the JVM is started allocating more memory this will be used for internal caching. The MonALISA client requires typically 256-512 MB of memory. Classification: 6.5 External routines: Requires Java: JRE or JDK to run. These external packages are used (they are included in the distribution): JINI, JFreeChart, PostgreSQL (optional). Nature of problem: To monitor and control

  17. Extreme resistance to two Brazilian strains of Potato virus Y (PVY in transgenic potato, cv. Achat, expressing the PVYº coat protein Resistência extrema a duas estirpes do Potato virus Y (PVY de batata transgênica, cv. Achat, expressando o gene da capa protéica do PVY O

    Directory of Open Access Journals (Sweden)

    Eduardo Romano

    2001-07-01

    Full Text Available The coat protein (CP gene of the potato virus Y strain "o" (PVY O was introduced into potato, cultivar Achat, via Agrobacterium tumefaciens-mediated transformation. Sixty three putative transgenic lines were challenged against the Brazilian strains PVY-OBR and PVY-NBR. An extremely resistant phenotype, against the two strains, was observed in one line, denominated 1P. No symptoms or positive ELISA results were observed in 16 challenged plants from this line. Another clone, named as 63P, showed a lower level of resistance. Southern blot analysis showed five copies of the CP gene in the extremely resistant line and at least three copies in the other resistant line. The stability of the integrated transgenes in the extreme resistant line was examined during several in vitro multiplications over a period of three years, with no modification in the Southern pattern was observed. The stability of the transgenes, the absence of primary infections and the relatively broad spectrum of resistance suggest that the extremely resistant line obtained in this work can be useful for agricultural purposes.O gene da capa protéica (CP do Potato virus Y estirpe "o", foi introduzido em batata cultivar Achat, via Agrobacterium tumefaciens. Sessenta e três linhas possivelmente transgênicas foram desafiadas com as estirpes brasileiras PVY-OBR e PVY-NBR. Uma linha apresentou extrema resistência às duas estirpes inoculadas, e foi denominado clone 1P. Não foram observados sintomas sistêmicos de infecção e as plantas foram negativas em Elisa. Outra linha, denominada clone 63P, mostrou algum nível de resistência. Análises por Southern blot indicaram a presença de pelo menos cinco cópias do gen CP no clone 1P e pelo menos três cópias no clone 63P. A estabilidade do gene introduzido no clone 1P foi avaliada durante três anos, após várias multiplicações in vitro. Não foram observadas mudanças no padrão do Southern blot. A estabilidade do transgene, na

  18. Caracterización postcosecha y composición química de la batata (Ipomoea batatas (L. Lamb. variedad Topera.

    Directory of Open Access Journals (Sweden)

    Auris Damely García-Méndez

    2016-06-01

    Full Text Available El objetivo de este trabajo fue caracterizar la composición química y calidad postcosecha de la batata variedad Topera proveniente de una producción semi-mecanizada con buenas prácticas agrícolas (BPA. El estudio se realizó en el Laboratorio de Procesamiento Primario de Productos Agrícolas y Bioquímica de Alimentos de la Facultad de Agronomía (FAGRO de la Universidad Central de Venezuela (UCV durante el año 2014. La metodología permitió determinar algunas características físicas, texturales y composición química por los métodos de AOAC (Association of Official Analytical Chemists. Se obtuvieron batatas con un menor coeficiente de variabilidad en el peso (CV: 20,12%, forma (CV: 5,63% y tamaño (CV: 12,80%. Esta respuesta permitió establecer tres categorías de calidad con una baja incidencia de defectos (2,15% y daños físico-mecánicos (30,25%, esta última asociada a la alta resistencia del material (6,25+0,05 kgf/mm. Las batatas presentaron contenidos de azúcares reductores de 9,88%, fibra de 6,19% y proteína de 4,13%; estas características nutricionales sugieren su uso como suplemento alimenticio. La producción semi-mecanizada con la implementación de las técnicas de las BPA, permitió obtener batatas con características de importancia para la agroindustria procesadora de alimentos IV Gama y, a nivel del consumidor, con una calidad física homogénea.

  19. Impacto dos nutrientes N e K e de açúcares solúveis sobre populações de Diabrotica speciosa (Germar (Coleoptera, Chrysomelidae e Agrotis ipsilon (Hüfnagel (Lepidoptera, Noctuidae na cultura da batata, Solanum tuberosum L. (Solanaceae Impact of the nutrients N and K and soluble sugars on Diabrotica speciosa (Germar (Coleoptera, Chrysomelidae and Agrotis ipsilon (Hüfnagel (Lepidoptera, Noctuidae populations in potato crops, Solanum tuberosum L. (Solanaceae

    Directory of Open Access Journals (Sweden)

    Edson Henrique de Azeredo

    2004-03-01

    Full Text Available Foi estudada a ocorrência de Diabrotica speciosa (Germar, 1824 (Coleoptera, Chrysomelidae e de Agrotis ipsilon (Hüfnagel, 1767 (Lepidoptera, Noctuidae em plantas de batata, cultivares Achat e Monalisa, influenciadas por dosagens de nitrogênio e potássio, e teor mínimo de açúcares solúveis. Os seguintes parâmetros foram avaliados: concentração de nutrientes minerais e açúcar em folha verde, folha senescente, folha em abcisão, haste, tubérculo e planta total usando extratos de infusão em etanol 80%. A maior infestação por larvas de D. speciosa foi na cultivar Monalisa a 150 kg.ha-1 de N + K com 27,03% a PThe occurrence of Diabrotica speciosa (Germar, 1824 and Agrotis ipsilon (Hüfnagel, 1767 on the potato cultivars Achat and Monalisa, influenced by nitrogen and potassium dosage, and minimum theor of soluble sugars, was studied. The following parameters were evaluated: concentration of mineral nutrient and sugar in green leaf, senescent leaf, leaf in abscission, stem, tubercle and total plant using extracts of infusion in ethanol 80%. The largest infestation of D. speciosa larvae was on Monalisa cultivar at 150 kg.ha-1 of N + K with 27.03% at P< 0,05. It was observed that the effect of the dosage of N + K in the increment of the concentration of soluble sugars increased the damages in the tubercles and stems by A. ipsilon. The infestation by these species increased to 58.82% on the Monalisa cultivar, when the nitrogen dosage increased from zero to 150 kg.ha-1, in the absence of potassium. On the other hand, high dosage of K reduced the damages by A. ipsilon on Monalisa cultivar. However, it did not influence the storage of soluble sugar. The results indicated that in Achat cultivar the accumulated soluble sugar was reduced, probably sensibilized by elevation of potassic fertilization dosing, differing from Monalisa cultivar, in which the influence was by nitrogen dosing.

  20. Preparation for MoNA/LISA VANDLE ^56Ni(d,n) Experiment at the NSCL

    Science.gov (United States)

    Bergstrom, Z. J.; Kozub, R. L.; Peters, W. A.; Cizewski, J. A.; Howard, M. E.; Bardayan, D. W.; Ikeyama, R.; Paulauskas, S. V.; Madurga, M.; Grzywacz, R.; Deyoung, P. A.; Baumann, T.; Smith, J.; Thoennessen, M.

    2012-10-01

    The rp-process is the explosive nucleosynthesis process in novae by which ions rapidly capture hydrogen nuclei, forming heavy, proton-rich nuclei. Most of the rp-process reactions are believed to pass through the ^56Ni(p,γ)^57Cu reaction which cannot presently be measured directly. An experiment to be performed at the NSCL employs the method of (d,n) proton transfer reactions in inverse kinematics to determine pertinent properties of this reaction via ^56Ni(d,n)^57Cu at 30 MeV/nucleon. The experiment will be carried out using two neutron detector arrays of plastic scintillator bars. The Versatile Array of Neutron Detectors at Low Energy (VANDLE) is able to detect neutrons in the 100 keV to 20 MeV range; however, when used in conjunction with MONA/LISA and the Sweeper detectors at the NSCL, the combined arrays allow for the detection of a wider range of neutron energies. Recently, the trigger logic was tested for the VANDLE-Sweeper coincidences and for the left-right coincidence trigger for MoNA/LISA. Results from these tests will be presented along with details of the approved (d,n) experimental setup.

  1. The new Digital Data Acquisition System for MoNA-LISA

    Science.gov (United States)

    Chrisman, Dayah; Deyoung, Paul; MoNA Collaboration Collaboration

    2017-01-01

    The Modular Neutron Array (MoNA) and the Large multi-Institutional Scintillator Array (LISA) at the National Superconducting Cyclotron Laboratory (NSCL) are used to detect neutrons emitted during the decay of exotic nuclei near the neutron dripline. The arrays consist of 288 10cm x 10cm x 2m long plastic scintillation detectors coupled to photomultipliers at each end. The Time of Flight (TOF) of these neutrons determines the neutron energy, which is needed to find the decay energy of the exotic nuclei. A Digital Data Acquisition System (DDAS) based on the XIA PXI modules is being developed to read out and record the signals of the MoNA-LISA scintillation detectors. A 500 Mega Samples per Second (MSPS) PXI module was used to test the time and energy resolution as it compares to the existing analog DAQ setup. NSF PHY-1002511, DOE-NNSA DE-NA0000979.

  2. Rhizosphere bacterial communities of potato cultivars evaluated through PCR-DGGE profiles Comunidades bacterianas associadas à rizosfera de cultivares de batata avaliadas por perfis de PCR-DGGE

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    Enderson Petrônio de Brito Ferreira

    2008-05-01

    Full Text Available The objective of this work was to determine the shifts on the PCR-DGGE profiles of bacterial communities associated to the rhizosphere of potato cultivars, in order to generate baseline information for further studies of environmental risk assessment of genetically modified potato plants. A greenhouse experiment was carried out with five potato cultivars (Achat, Bintje, Agata, Monalisa and Asterix, cultivated in pots containing soil from an integrated system for agroecological production. The experiment was conducted in a split plot randomized block design with five cultivars, three sampling periods and five replicates. Rhizosphere samples were collected in three sampling dates during plant development. DNA of rhizosphere microorganisms was extracted, amplified by PCR using bacterial universal primers, and analyzed through DGGE. Shifts on the rhizosphere bacterial communities associated to rhizosphere of different cultivars were related to both cultivar and plant age. Differences among rhizosphere bacterial communities were clearest at the earliest plant age, tending to decrease in later stages. This variation was detected among bacterial communities of the five tested cultivars. The characterization of soil microbial communities can be part of plant breeding programs to be used on studies of environmental risk assessment of genetically modified potatoes.O objetivo deste trabalho foi determinar as alterações nos perfis de PCR-DGGE das comunidades bacterianas associadas à rizosfera de cultivares de batata, para obter informações para futuros estudos de avaliação de risco ambiental de plantas de batatas geneticamente modificadas. Foi conduzido experimento em casa de vegetação com cinco cultivares de batata (Achat, Bintje, Ágata, Monalisa e Asterix, cultivadas em vasos com solo de um sistema integrado de produção agroecológica. O delineamento experimental foi o de blocos ao acaso, em parcelas subdivididas, com cinco cultivares, tr

  3. Development of a forward-angle gamma-ray detector array for MoNA-LISA

    Science.gov (United States)

    Votaw, Daniel; MoNA Collaboration Collaboration

    2017-01-01

    In recent years invariant mass spectroscopy has been successfully applied to measure neutron-unbound states. In this method neutrons are measured in coincidence with charged fragments following reactions with radioactive beams produced in projectile fragmentation reactions. When the final nucleus has bound excited states it is necessary to include gamma-ray detection in order to extract the excitation energy of the initial state. Because the MoNA-LISA setup at NSCL uses a large-gap Sweeper magnet to deflect the charged particles, conventional gamma-ray scintillation arrays cannot be used efficiently because of the large fringe field of the magnet. Thus we are developing a small cesium iodide (CsI) array using silicon photomultipliers (SiPMs) which are agnostic to the presence of a magnetic field. Using GEANT4 simulations the parameters of the array will be optimized to achieve the required efficiency and energy resolution of the Doppler-corrected energy spectra, necessary to extract the gamma-ray transitions in the final nucleus. NSF PHY-1002511, DOE-NNSA DE-NA0000979.

  4. Calibrations of MoNA-LISA VANDLE 56Ni(d,n)57Cu Experiment

    Science.gov (United States)

    Ikeyama, R.; Cizewski, J. A.; Peters, W. A.; Bergstrom, Z. J.; Paulauskas, S. V.; Deyoung, P. A.; Hinnefeld, J.; Rogers, W.; Baumann, T.; Jones, M.; Smith, J. K.; Lesher, S. R.; Ribens Collaboration; Vandle Collaboration; Mona Collaboration

    2013-10-01

    A (d,n) proton transfer experiment, in inverse kinematics, was conducted at the National Superconducting Cyclotron Laboratory using a 35 MeV/nucleon beam of 56Ni. This experiment used both the Versatile Array of Neutron Detectors at Low Energy (VANDLE) at back angles to detect neutrons with less than 20 MeV and the MoNA-LISA array at forward angles for higher energy neutrons and to cover a large angular range. The experiment attempts to measure the spectroscopic factors of the 57Cu resonance important in the rp -process, and determination of the reaction rate. Precise calibrations of all the detector subsystems are crucial for identifying the kinematic signature of the ejected neutrons and the extracting the spectroscopic factors to the different energy levels. Calibrations of the charged particle detectors and the neutron detector arrays are ongoing. Preliminary results pertaining to detector calibrations will be presented as well as details of the experimental setup. This work was supported in part by the U.S. DOE, the NNSA, and the NSF.

  5. G4MoNA - A Geant4 Simulation for unbound nuclides detected with MoNA/LISA

    Science.gov (United States)

    Gueye, Paul; Freeman, Jessica; Frank, Nathan; MoNA Collaboration

    2017-01-01

    The MoNA Collaboration has conducted a plethora of experiments to study unbound nuclei near the neutron dripline using the invariant mass technique since 2005. These experiments used a variety of secondary beams from the Coupled Cyclotron Facility of the National Superconducting Cyclotron Laboratory. The experimental setup consists of a large gap superconducting Sweeper magnet for charged fragments separation and the MoNA/LISA neutron detector arrays for neutron detection. Recently, a multi-layered Si/Be segmented target consisting of three 700 mg/cm2 thick 9Be slabs and four 140 μ m Si detectors were added to the setup. This target improves the resolution of the reconstructed decay energy spectra of the unbound nuclides. The Geant4 Monte Carlo simulation toolkit was used to develop a complete realistic model of the setup including a new class to treat the decay of unbound nuclei, the Si/Be segmented target, the MoNA/LISA and the charged fragments detector systems. Comparison between simulated and experimental data will be presented. DoENNSA - DE-NA0000979.

  6. ALTERAÇÕES FÍSICAS E FÍSICO-QUÍMICAS DE BATATAS (SOLANUM TUBEROSUM L. MINIMAMENTE PROCESSADAS INTERCALADAS COM DIFERENTES FILMES ATIVOS

    Directory of Open Access Journals (Sweden)

    E. ENDO

    2009-01-01

    Full Text Available

    Batatas (Solanum tuberosum L. da variedade Monalisa, foram minimamente processadas e submetidas a diferentes tratamentos, empregados para a avaliação de seus efeitos sobre o escurecimento decorrente da ação das Polifenoloxidases (PPO. Estes tratamentos consistiram em filmes celulósicos puros (0% ou incorporados com aditivos 2% de ácido cítrico (2%AC, 0,5% de monocloridrato de Lcisteína (0,5%CIS, 7% de ácido sórbico (7%AS e mistura dos compostos (Mistura que foram intercalados às batatas fatiadas. Como controle, utilizaram-se batatas mantidas sem filme intercalado (SF. Todas as amostras foram acondicionadas em bandejas de poliestireno expandido, envoltas em filme de PVC e armazenadas por 9 dias a 8ºC ± 2ºC. A cada três dias foram avaliados: atividade da PPO, cor (coordenadas L*, a* e b* e diferença de cor ( E, pH, acidez total titulável (%, atividade de água (Aa e perda de massa (%. Os resultados indicaram que os tratamentos não diferiram significativamente (p>0,05 para a maioria dos parâmetros avaliados, com exceção da diferença de cor, que apresentou diferença significativa aos 10% de probabilidade. Nesta avaliação, as amostras intercaladas com os filmes de ácido cítrico e de cisteína demonstraram os melhores desempenhos, indicando que estes filmes possuem potencial para minimizar o escurecimento enzimático, mantendo a cor original da batata minimamente processada e refrigerada por mais tempo.

  7. Modelos estatísticos para descrever a produtividade de batata em função da adubação nitrogenada Statistical models to describe the potato yield as a result of the nitrogen fertilization

    Directory of Open Access Journals (Sweden)

    Marcelo Cleón de C Silva

    2007-09-01

    Full Text Available Avaliou-se seis modelos matemáticos para predizer a dose ótima de nitrogênio (N para a produção de tubérculos de batata em experimento realizado na UFV, em solo Podzólico Vermelho-Amarelo Câmbico. Foram avaliadas cinco doses de N (0; 50; 100; 200 e 300 kg ha-1 no delineamento experimental em blocos completos casualizados, com quatro repetições. A aplicação do N foi realizada em sulcos, na forma de sulfato de amônio. A cultivar Monalisa foi plantada em 14/05, seguindo-se as normas agronômicas recomendadas para a batata. Os tubérculos foram colhidos e pesados em 14/09. Foram selecionados seis modelos, linear plateau, quadrático plateau, Mitscherlich, sigmoidal, raiz quadrática e quadrático que foram avaliados com base nos critérios: lógica biológica, significância do quadrado médio do resíduo da regressão, não significância do F ou falta de ajustamento, alto valor do coeficiente de determinação (R², significância dos parâmetros da regressão, ausência de padrão no gráfico de resíduos versus valores previstos e, quando possível a sobra de dinheiro após vender a batata e pagar o adubo nitrogenado. Pelos critérios adotados, o modelo quadrático foi o escolhido e a dose estimada de N para a máxima eficiência econômica foi 163 ou 171 kg ha-1, em cenários desfavorável ou favorável de preço da batata, respectivamente.Six mathematical models were evaluated to predict nitrogen (N optimum rate for the potato production in an experiment carried out in a Red Yellow Cambic Podzolic soil. Five N rates (0; 50; 100; 200 and 300 kg ha-1 were evaluated in a completely randomized block design, with four replications. N fertilizer was applied in furrows, as ammonium sulphate. Monalisa cultivar was planted on May 5 following the recommended agronomic practices for the potato. Tubers were harvested and weighed on September 14. Six models, linear plateau, quadratic plateau, Mitscherlich, sigmoidal, square root and quadratic

  8. Produção de sementes de batata-doce, por fecundações artificiais, em casa de vegetação Seed setting of sweet potato hand pollinated under grenhouse conditions

    Directory of Open Access Journals (Sweden)

    Domingos Antonio Monteiro

    1992-01-01

    Full Text Available No período de 1970-1977, estudou-se a produção de sementes verdadeiras de batata-doce (Ipomoea batatas (L. Lam., por fecundações artificiais em condições de casa de vegetação, cultivando-se segmentos de ramas com botões florais em vasos com água. Os resultados evidenciaram diferença de comportamento dos genótipos quanto à capacidade de produção de sementes. O genótipo SRT 252 (Rama Grossa foi o que melhor se comportou como planta feminina, com formação de 57,40% de cápsulas quando cruzado com outros genótipos e 40,20% quando autofecundado.Seed setting of five sweet potato genotypes: SRT 72-Jacareí; SRT 248; SRT 252-Rama Grossa; IAC 66-118-Monalisa and IAC 3-4-Irani was studied under greenhouse conditions. Flowers from vine cuttings growing in water were hand pollinated. All five lines functioned about equally well as pollen parents but there were significant differences in their ability to function as seed parents. Cultivars SRT 248 and SRT 72 when used as female showed a low ability to seed production both when selfed and crossed. Such ability appeared to be a varietal characteristic which affected seed set. Differences were found between the percentage of seed set of open and cross-pollinated flowers. Self incompatibility was observed for four cultivars. The highest degree of self compatibility was showed by the cultivars SRT 252. There was an observed decline in seed set during the month of June, with the highest seed set during April.

  9. Distributions, ex situ conservation priorities, and genetic resource potential of crop wild relatives of sweetpotato [Ipomoea batatas (L.) Lam., I. series Batatas

    NARCIS (Netherlands)

    Khoury, C.K.; Heider, B.; Castaneda-Alvarez, N.P.; Achicanoy, H.A.; Sosa, C.C.; Miller, R.E.; Scotland, R.W.; Wood, J.R.I.; Rossel, G.; Eserman, L.A.; Jarret, R.L.; Yencho, G.C.; Bernau, V.; Juarez, H.; Sotelo, S.; Haan, de S.; Struik, P.C.

    2015-01-01

    Crop wild relatives of sweetpotato [Ipomoea batatas (L.) Lam., I. series Batatas] have the potential to contribute to breeding objectives for this important root crop. Uncertainty in regard to species boundaries and their phylogenetic relationships, the limited availability of germplasm with which t

  10. Distributions, ex situ conservation priorities, and genetic resources potential of crop wild relatives of sweeetpotato (Ipomoea batatas (L.) Lam. I. series Batatas)

    Science.gov (United States)

    Crop wild relatives (CWR) of sweetpotato [Ipomoea batatas (L.) Lam., I. series Batatas] have the potential to contribute to breeding objectives for this important root crop. Uncertainty in regard to species boundaries and their phylogenetic relationships, and the limited availability of germplasm wi...

  11. Distributions, ex situ conservation priorities, and genetic resource potential of crop wild relatives of sweetpotato [Ipomoea batatas (L.) Lam., I. series Batatas

    NARCIS (Netherlands)

    Khoury, C.K.; Heider, B.; Castaneda-Alvarez, N.P.; Achicanoy, H.A.; Sosa, C.C.; Miller, R.E.; Scotland, R.W.; Wood, J.R.I.; Rossel, G.; Eserman, L.A.; Jarret, R.L.; Yencho, G.C.; Bernau, V.; Juarez, H.; Sotelo, S.; Haan, de S.; Struik, P.C.

    2015-01-01

    Crop wild relatives of sweetpotato [Ipomoea batatas (L.) Lam., I. series Batatas] have the potential to contribute to breeding objectives for this important root crop. Uncertainty in regard to species boundaries and their phylogenetic relationships, the limited availability of germplasm with which t

  12. Anti-ulcer activity of Ipomoea batatas tubers (sweet potato

    Directory of Open Access Journals (Sweden)

    Vandana Panda

    2012-04-01

    Full Text Available Background: Peptic ulcers occur in that part of the gastrointestinal tract which is exposed to gastric acid and pepsin, i.e., the stomach and duodenum. Gastric and duodenal ulcers are common pathologies that may be induced by a variety of factors such as stress, smoking and noxious agents including non-steroidal anti-inflammatory drugs. Ipomoea batatas tubers (sweet potato contain ample amounts of antioxidants. It has been proven already by many scientific studies that antioxidants have ulcer healing properties. In reference to this, we tried assessing the ulcer healing effect of Ipomoea batatas tubers. Methods: The anti-ulcer activity of the tubers of Ipomoea batatas (sweet potato was studied in cold stress and aspirin-induced gastric ulcers in Wistar rats. Methanolic extracts of Ipomoea batatas tubers (TE at two doses, viz., 400 and 800 mg /kg were evaluated in cold stress and aspirin-induced gastric ulcer models using cimetidine and omeprazole respectively as standards. The standard drugs and the test drugs were administered orally for 7 days in the cold stressmodel and for 1 day in the aspirin-induced gastric ulcer model. Gastroprotective potential, status of the antioxidant enzymes {superoxide dismutase (SOD, catalase (CAT, glutathione peroxidase (GPx and glutathione reductase(GR} along with GSH, and lipid peroxidation were studied in both models. Results: The results of the present study showed that TE possessed gastroprotective activity as evidenced by its significant inhibition of mean ulcer score and ulcer index and a marked increase in GSH, SOD, CAT, GPx, and GR levels and reduction in lipid peroxidation in a dose dependant manner.Conclusion: The present experimental findings suggest that tubers of Ipomoea batatas may be useful for treating peptic ulcers.

  13. Purification and Trypsin Inhibitor Activity of a Sporamin B from Sweet Potato (Ipomoea batatas Lam. 55-2)

    Institute of Scientific and Technical Information of China (English)

    SUN Yan-li; SUN Jun-mao; LI Qing-peng

    2009-01-01

    Sporamin is a soluble protein in sweet potato, and falls into two distinct homology groups, subfamilies A and B. In this research, a sporamin B was purified and its amino acid sequences, trypsin inhibitor activity (Ti activity) were analyzed. This sporamin B was isolated from sweet potato tubers [Ipomoea batatas (L.) Lam cv. 55-2] through extraction of the water-soluble fraction, dialysis, ultrafiltration and ion-exchange chromatography. Homology determined by polyacrylamide gel electrophoresis showed that mainly one bond appeared in gel after being reduced by SDS (sodium dodecyl sulfate), or by SDS and 2-mercaptoethanol, or in native situation. By comparing the data of the polypeptide mass Matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry with those of the mass of the theoretical amino acid sequences from NCBI protein database, it was revealed that it was Q40091|Q40091_IPOBA, sweet potato sporamin B - Ipomoea Batatas (sweet potato) (Batate). The sequence coverage was 70.6%. N-terminal sequence was SETPV (Ser-Glu-Thr-Pro-Val). There is a linear relationship between trypsin inhibitor activity (Ti activity) and amounts of this sporamin B (3-18 μg mL-1). The equation of linear regression was y=2.5809x+17.049 (r2=0.9966). There was a curvilinear relationship between Ti activity and amounts of this sporamin B (21-150 μg mL-1). The equation of curvilinear regression is y= 14.4171n(x)+23.26 (r2=0.9924). The concentration of sporamin B with Ti activity after heating at 40℃ may induce part denature of this sporamin B, and there was no statistic difference after heating at 40, 50, 60℃ for 20 min. Heat treatment at more than 90℃ leads to a dramatic decrease of trypsin inhibitor efficiency. The results suggested that Q40091|Q40091_IPOBA was the major sporamin B in sweet potato tubers [Ipomoea Batatas (L.) Lain cv. 55-2], which had strong Ti activity, and was stable to both thermal and DTT (DL-dithiothreitol) relatively.

  14. Ocorrência de vírus em batata em sete estados do Brasil Virus occurrence in potatoes in seven Brazilian States

    Directory of Open Access Journals (Sweden)

    Antônio Carlos de Ávila

    2009-12-01

    Full Text Available As viroses causam rápida degenerescência dos tubérculos-sementes de batata. Em condições tropicais, em que a presença de afídeos vetores é constante e a estrutura das populações de vírus é dinâmica, a pressão das doenças é enorme. Conhecer essa dinâmica é uma ferramenta importante para a sustentabilidade da produção de batata. Realizou-se um levantamento abrangente da ocorrência de viroses em batata no Brasil, além de estudar-se a distribuição das estirpes de Potato virus Y (PVY associadas ao mosaico da batata. Em 2005 e 2006 foram visitadas lavouras em sete estados brasileiros, coletando-se folíolos com sintomas de viroses (1.256 amostras e amostras aleatórias (360 amostras. Foi feita também uma estimativa visual da incidência de mosaico e enrolamento-das-folhas em vários dos campos visitados. Das 1.256 amostras suspeitas, 840 apresentaram reação positiva em teste sorológico para PVY (66,9%, 128 para Potato leaf roll virus (PLRV (10,2%, 79 para Potato virus S (PVS (6,3% e nenhuma para Potato virus X (PVX. Os resultados dos testes de detecção por DAS-ELISA, biológico e RT-PCR mostraram a presença quase absoluta do subgrupo necrótico de PVY, em sua maioria PVY NTN. A análise de uma sub-amostragem em todos os municípios visitados confirmou que essa variante está hoje presente nos sete estados visitados. Amostras de PVY NTN foram obtidas das cultivares Asterix, Atlantic, Agata, Achat, Baronesa, Baraka, Bintje, Caesar, Cupido, Marijke, Monalisa, Panda e Vivaldi, que apresentaram diferentes níveis de suscetibilidade. As amostras aleatórias revelaram um quadro muito similar ao encontrado com as amostras sintomáticas. PLRV foi identificado em MG, BA, PR e SC, em várias lavouras de forma muito freqüente. PVS foi identificado nesses mesmos estados e também em SP. PVX foi detectado em apenas uma amostra tomada ao acaso em Serra do Salitre (MG. O contraste entre a avaliação visual dos sintomas e os resultados

  15. Emgu CV essentials

    CERN Document Server

    Shi, Shin

    2013-01-01

    This book provides a practical guide to Emgu CV libraries, with sample code and examples used throughout to explain the concepts clearly. Each chapter deals with a different aspect of the Computer Vision field and the implementation of that topic in Emgu CV.If you are a C# programmer working on computer vision projects, this book is for you. You should have prior experience with C#.

  16. In vivo wound healing and antiulcer properties of white sweet potato (Ipomoea batatas

    Directory of Open Access Journals (Sweden)

    Daniele Hermes

    2013-07-01

    Full Text Available The potential of tuber flour of Ipomoea batatas (L. Lam. cv. Brazlândia Branca (white sweet potato as wound healing and antiulcerogenic agent was investigated in vivo in animal model. Excision on the back of Wistar rats was performed to induce wounds that were topically treated with Beeler’s base containing tuber flour of white sweet potato at 2.5%. Number of cells undergoing metaphase and the degree of tissue re-epithelialization were investigated 4, 7 and 10 days post-treatment. The protective effect of aqueous suspension of tuber flour (75 and 100 mg/kg animal weight on gastric mucosa of Wistar rats was also studied by using the ethanol-induced ulceration model. Ointment based on white sweet potato at 2.5% effectively triggered the healing of cutaneous wound as attested by the increased number of cells undergoing metaphase and tissue re-epithelialization regardless the time of wound treatment. Tuber flour potentially prevented ethanol-induced gastric ulceration by suppressing edema formation and partly protecting gastric mucosa wrinkles. Crude extracts also exhibited potential as free radical scavengers. The results from animal model experiments indicate the potential of tuber flour of white sweet potato to heal wounds.

  17. Effect of Hydrocolloides On Fat Absorption on Batata Wada

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    SarangTajne

    2016-10-01

    Full Text Available Batatawada is popular Indian vegetarian fast food in Maharashtra, India. It is literally means potato fritters. It consists of a potato mash patty coated with besan, then deep-fried and served hot with chutney. While preparing batter of besanhydrocolloids were added in the concentration range of 0.5%, 1.0% & 1.5%.Among all the hydrocolloids studied at different levels for preparation of Batata Wada, it can be concluded that Batata Wada formulated with 1.0% MC were found statistically significant over all other hydrocolloids in oil uptake with optimum sensory quality characteristics. It becomes quiet stable at level of 1.0% formulation in remaining hydrocolloids i.e. CMC, HPMC. Thus, Batata Wada with low fat and low calorie content with better acceptance can be prepared in order to meet the demand of low fatty foods, of health cautious consumers. In Texture analysis profile, hardness and stickiness values found at the level of formulation of 1.0% of MC, CMC, HPMC is quiet stable as compared to other level of formulation.

  18. Pneumonia intersticial em bovinos associada à ingestão de batata-doce (Ipomoea batatas mofada Interstitial pneumonia in cattle fed moldy sweet potatoes (Ipomoea batatas

    Directory of Open Access Journals (Sweden)

    Rafael A. Fighera

    2003-12-01

    Full Text Available Uma doença respiratória foi diagnosticada em cinco dentre 23 bovinos (21,7% após terem sido alimentados com batata-doce (Ipomoea batatas mofada em uma pequena propriedade rural em São Vicente do Sul, Rio Grande do Sul, Brasil. Três dos cinco bovinos afetados morreram espontaneamente, e o quarto foi sacrificado para necropsia quando mostrava sinais clínicos respiratórios avançados. A manifestação clínica iniciara cerca de 24 horas após a ingestão das batatas-doces e a evolução clínica foi de 1 a 4 dias. Os sinais clínicos incluíam dispnéia (respiração laboriosa e abdominal, taquipnéia, pescoço estendido com cabeça baixa e dilatação ritmada das narinas. Dois bovinos foram necropsiados. Os achados de necropsia incluíam pulmões distendidos, pálidos e de consistência borrachenta, que não colapsavam quando o tórax era aberto; enfisema e edema acentuados eram evidentes no pulmão. Os linfonodos e o baço apresentavam alterações características de hiperplasia linfóide. Histologica-mente, as lesões eram típicas de pneumonia intersticial. Os septos alveolares estavam espessados por fibroblastos e células inflamatórias, havia hipertrofia e hiperplasia de pneumócitos tipo II; os septos interlobulares estavam distendidos por edema e enfisema. A cultura de amostras das batatas-doces mofadas produziu Fusarium solani e F. oxysporum.Cases of respiratory disease were diagnosed in five out of 23 cattle (21.7% after they were fed moldy damaged sweet potatoes (Ipomoea batatas on a small farm in the county of São Vicente do Sul, state of Rio Grande do Sul, Brazil. Of those five cattle, three died spontaneously and another one was euthanatized for necropsy while showing advanced respiratory clinical signs. The disease manifested itself approximately 24 hours after the ingestion of the sweet potatoes and lasted from 1 to 4 days. Clinical signs included dyspnea (labored breathing and abdominal respiration, tachypnea, extended

  19. Cloning and Functional Analysis of Lycopeneε-Cyclase (IbLCYe) Gene from Sweetpotato, Ipomoea batatas (L.) Lam

    Institute of Scientific and Technical Information of China (English)

    YU Ling; ZHAI Hong; CHEN Wei; HE Shao-zhen; LIU Qing-chang

    2013-01-01

    This paper reported firstly successful cloning of lycopeneε-cyclase (IbLCYe) gene from sweetpotato, Ipomoea batatas (L.) Lam. Using rapid amplification of cDNA ends (RACE), IbLCYe gene was cloned from sweetpotato cv. Nongdafu 14 with high carotenoid content. The 1 805 bp cDNA sequence of IbLCYe gene contained a 1 236 bp open reading frame (ORF) encoding a 411 amino acids polypeptide with a molecular weight of 47 kDa and an isoelectric point (pI) of 6.95. IbLCYe protein contained one potential lycopeneε-cyclase domain and one potential FAD (flavinadenine dinucleotide)/NAD(P) (nicotinamide adenine dinucleotide phosphate)-binding domain, indicating that this protein shares the typical characteristics of LCYe proteins. The gDNA of IbLCYe gene was 4 029 bp and deduced to contain 5 introns and 6 exons. Real-time quantitative PCR analysis revealed that the expression level of IbLCYe gene was significantly higher in the storage roots of Nongdafu 14 than those in the leaves and stems. Transgenic tobacco (cv. Wisconsin 38) expressing IbLCYe gene accumulated significantly moreβ-carotene compared to the untransformed control plants. These results showed that IbLCYe gene has an important function for the accumulation of carotenoids of sweetpotato.

  20. Efeito residual da adubação efetuada no cultivo da batata sobre a produção do feijão-de-vagem Residual effect of fertilizer applied to potatoes on the production of snap bean

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    Ernani Clarete Silva

    2001-11-01

    Full Text Available Foi avaliado o efeito do adubo residual da batata sobre a produção do feijão-de-vagem em cultivo sucessivo. A batata, cv. Achat, plantada no espaçamento 0,80 m x 0,40 m, foi adubada nas doses: 0; 2 e 4 t ha-1 da fórmula 4-16-8. Posteriormente cultivou-se o feijão-de-vagem, cultivar Macarrão Rasteiro 274 (Horticeres no delineamento experimental de blocos casualizados, com quatro repetições e no esquema de parcelas subdivididas, tendo nas parcelas a adubação residual do cultivo da batata e nas subparcelas a adubação de plantio do feijão-de-vagem (adubado e não adubado. Observou-se que o aumento das doses da adubação mineral da batata aumentou também os teores de fósforo, potássio e cálcio trocáveis no solo sem alteração do pH. A produção e demais componentes da produção analisados tiveram incremento positivo em função deste efeito residual. É viável a produção do feijão-de-vagem apenas com o resíduo da adubação da batata.The aim of this work was to evaluate the residual effect of fertilizer applied in potato fields on successive snap bean crop production. The potato, cv. Achat was cultivated in plots with three treatments: 0; 2 and 4 t ha-1 of the formula 4-16-8. After potato harvest, snap bean `Macarrão Rasteiro' was grown in a randomized block design in split plot and four replications. Potato fertilizer was evaluated in the plot and snap bean in the split, the first with and the second without base fertilizer The increase of mineral fertilizer to the potato crop favored a greater residual effect of nutrients, principally exchangeable phosphorus, potassium and calcium in the soil, without alteration of pH in soil. Yield and other characteristics evaluated for snap bean showed a positive increase in function of the residual effect of the fertilization of the potato crop. It is possible to produce snap bean only with potato residual fertilizer.

  1. Índice SPAD para o diagnóstico do estado de nitrogênio e para o prognóstico da produtividade da batata

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    Gil Paula Torrealba de

    2002-01-01

    Full Text Available Determinou-se o nível crítico do índice SPAD (Soil Plant Analysis Development na folha da batateira e verificou-se a possibilidade de sua utilização no prognóstico da produção de tubérculos de batata, cultivar Monalisa. O experimento foi realizado em Argissolo Vermelho-Amarelo, com o teor de N mineral de 39 mg kg-1. O ensaio foi conduzido no delineamento em blocos ao acaso, com quatro repetições, em esquema de parcela subdividida. As parcelas foram constituídas por cinco doses de N (0; 25; 50; 100 e 200 kg ha-1 aplicadas nos sulcos em pré-plantio. As subparcelas constituíram as quatro doses de N (0; 90; 180 e 360 kg ha-1, aplicadas em cobertura, 10 cm ao lado das plantas, aos 23 dias após a emergência (DAE, imediatamente antes da amontoa. Foi utilizado o sulfato de amônio. Foram feitas medições do índice SPAD no folíolo terminal da quarta folha a partir do ápice (QF em seis épocas. A primeira (SPAD1 foi realizada três dias antes da adubação em cobertura e as demais aos 7; 17; 27; 37 e 47 dias após a aplicação de N em cobertura. Também foram determinados os índices SPAD em folhas mais velhas (FM que a QF. Na primeira época foram determinados os teores de N na QF. O índice SPAD1 e o teor de N aumentaram de forma quadrática em função das doses de N em pré-plantio, atingindo os níveis críticos de 44,9 unidades e de 6,2 dag.kg-1, respectivamente. Houve correlação linear e positiva entre os valores do índice SPAD1 e os da produção de tubérculos, indicando que o índice SPAD pode ser usado no prognóstico da produtividade da cultura. Em todas as épocas de amostragens, os índices SPAD na QF e na FM foram influenciados pelas doses de N porém, atingiram valores diferentes, mostrando a necessidade de padronizar a época e a folha a ser amostrada.

  2. MORPHOPHYSIOLOGICAL CHANGES OF IPOMOEA BATATAS (L. LAM. DURING DROUGHT STRESS

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    La Rosa, R.

    2008-01-01

    Full Text Available One of the greatest problems in the world is desertification so we must to know physiological responses and morphological adaptations from species with tolerance to drought stress. Sweet potato (Ipomoea batatas Lam. is one of the most important crops of the world, especially because of its great tolerance to drought stress. Hence, we decided to know what morphophysiological and metabolic responses has I. batatas under drought stress. So, we got cuttings of variety INA-100, from INIA Huaral, and were planted in 22 recipients of 4 L with substrate consisting in a mixing of sand and humus (3:1. Half of them were irrigated monthly and other half only receives water to establish plants and no more after that. We measured transpiration, histological changes in leaves and metabolic changes at protein and starch level. We confirmed transpiration is not affected for air humidity or substrate humidity. But, the effect of drought can be better observed in foliage growth, therefore in histological changes in leaves. No significance in concentration of proteins but significance in carbohydrates concentration shows an osmotic regulation in order to maintain stomata open and also an increase in photosynthetic activity in stressed plants.

  3. Adubação orgânica da batata com esterco bovino no município de Esperança - PB Potato organic fertilization with bovine manure in Esperança county - PB

    Directory of Open Access Journals (Sweden)

    Lucas Borchartt

    2011-06-01

    Full Text Available Objetivou-se avaliar a eficiência do esterco bovino na adubação orgânica na cultura da batata. O experimento foi realizado no município de Esperança/PB, em Neossolo Regolítico. A cultivar utilizada foi a Monalisa, onde o delineamento utilizado foi de blocos casualizados, com três repetições. Os tratamentos foram constituídos de aplicação de esterco bovino em quantidades de 0; 3; 6; 9; 12; 15; 18; 21 e 24 t ha-1 e 10 t ha-1 com a complementação de NPK com percentagens de 0; 12,5; 25; 37,5; 50; 62,5; 75; 87,5 e 100% da fórmula 120-80-90 (N-P2O5-K2O, calculada conforme a análise de solo. As variáveis avaliadas foram: número e peso médio de tubérculos por planta, produção total, produção comercial, perdas de produção e matéria seca de tubérculos. O uso de esterco bovino e esterco bovino à adição de NPK proporcionaram aumento no peso de tubérculos por planta, produção total e produção comercial de tubérculos de batata. Desta forma, observa-se que o esterco bovino é uma boa alternativa como adubação orgânica para os produtores de batata.In the Paraíba state the potato shows a low yield, due to the rain seasonality allied to the low soil fertility. This study aimed to evaluate the bovine manure efficiency in the organic fertilization of potato. The experiment was carried out in Esperança county, in a Regolithic neossoil. The design used was randomized blocks, with bovine manure application in quantities of 0; 3; 6; 9; 12; 15; 18; 21 and 24 t ha -1 and 10 t ha -1 of bovine manure + NPK with percentages of 0; 12.5; 25; 37.5; 50; 62.5; 75; 87.5; and 100% of the formula 120-80-90 ( N-P2O5-K2O , calculated by the soil analysis. The variables evaluated were: number and weight of tubers per plant, total yield and commercial; yield losses and dry matter of tubers. The use of bovine manure and bovine manure + NPK provided an increase in weight of tubers per plant, total yield and commercial potato tubers. This way, it

  4. Ipomoea batatas and Agarics blazei ameliorate diabetic disorders with therapeutic antioxidant potential in streptozotocin-induced diabetic rats.

    Science.gov (United States)

    Niwa, Atsuko; Tajiri, Takashi; Higashino, Hideaki

    2011-05-01

    Ipomoea batatas, Agaricus blazei and Smallanthus sonchifolius are known to favorably influence diabetes mellitus. To clarify their antidiabetic efficacy and hypoglycemic mechanisms, we treated streptozotocin-induced diabetic rats with daily oral feeding of powdered Ipomoea batatas (5 g kg(-1) d(-1)), Agaricus blazei (1 g kg(-1) d(-1)) or Smallanthus sonchifolius (4 g kg(-1) d(-1)) for 2 months. Treatments with Ipomoea batatas or Agaricus blazei, but not Smallanthus sonchifolius, significantly suppressed the increases of fasting plasma glucose and hemoglobin A1c levels, and restored body weight loss during diabetes. Serum insulin levels after oral glucose administration tests increased along the treatments of Ipomoea batatas or Agaricus blazei. Moreover, Ipomoea batatas and Agaricus blazei reduced superoxide production from leukocytes and vascular homogenates, serum 8-oxo-2'-deoxyguanosine, and vascular nitrotyrosine formation of diabetic rats to comparable levels of normal control animals. Stress- and inflammation-related p38 mitogen-activated protein kinase activity and tumor necrosis factor-α production of diabetic rats were significantly depressed by Ipomoea batatas administration. Histological examination also exhibited improvement of pancreatic β-cells mass after treatments with Ipomoea batatas or Agaricus blazei. These results suggest that hypoglycemic effects of Ipomoea batatas or Agaricus blazei result from their suppression of oxidative stress and proinflammatory cytokine production followed by improvement of pancreatic β-cells mass.

  5. Measuring the partial width of the 56Ni proton-capture resonance through (d,n) with VANDLE and MoNA-LISA

    Science.gov (United States)

    Peters, William; Grzywacz, R.; Madurga, M.; Paulauskas, S.; Taylor, S.; Allen, J.; Cizewski, J. A.; Manning, B.; Howard, M. E.; Bardayan, D. W.; Pain, S. D.; Clement, R. C. C.; Ilyushkin, S.; O'Malley, P. D.; Ikeyama, R.; Kozub, R. L.; Long, K. D.; Bergstrom, Z. J.; Deyoung, P. A.; Rogers, W. F.; Smith, J.; Jones, M.; Baumann, T.; Thoennessen, M.; Vandle; Mona Collaboration

    2013-10-01

    Due to the long half-life of 56Ni and the low proton threshold of 57Cu, the (p, γ) reaction on 56Ni is the linchpin reaction for heavier elements in the rp process of explosive nucleosynthesis. A new attempt to measure the proton partial width of the excited 1/2- state in 57Cu and to indirectly extract the proton-capture resonance strength was performed at the National Superconducting Cyclotron Laboratory using the Versatile Array of Neutron Detectors at Low Energy (VANDLE) along with the MoNA-LISA neutron array. The VANDLE setup of digitizing electronics was event-matched to the MoNA-LISA-Sweeper data acquisition system. After a test run with a stable 40Ca beam, a beam of 56Ni impinged onto a deuterated polyethylene target inducing (d,n) transfer reactions to predominantly single-proton states in 57Cu. These experiments were the commissioning experiments for VANDLE with a transfer reaction. Details of the unique experimental setup will be presented as well as current analysis of the data with both 40Ca and 56Ni beams. Work supported in part by the USDoE Office of Science and the National Nuclear Security Administration Stewardship Science Academic Alliance and the National Science Foundation.

  6. Determining the resonance strength of the 56Ni rp-process waiting point through (d,n) with VANDLE and MoNA-LISA

    Science.gov (United States)

    Peters, W.; Grzywacz, R.; Madurga, M.; Paulauskas, S. V.; Taylor, S.; Allen, J.; Cizewski, J. A.; Manning, B.; Howard, M. E.; Smith, J.; Jones, M.; Baumann, T.; Thoennessen, M.; Bardayan, D. W.; Pain, S. D.; Clement, R. C. C.; Brown, J.; Luther, B.; Ilyushkin, S.; O'Malley, P. D.; Ikeyama, R.; Kozub, R. L.; Bergstrom, Z. J.; Deyoung, P. A.; Rogers, W.

    2014-03-01

    The rapid proton capture (rp) process of explosive nucleosynthesis is believed to be the driver of X-ray bursts and creates nuclei up to around mass 110. Whereas much of this process burns in an equilibrium determined by half-lives and masses, the waiting point at 56Ni is unique. At this point the process reaches its peak luminosity and the synthesis of almost all heavier nuclei pass through the 56Ni(p,γ)57Cu reaction. Since the gamma-decay width dominates the relevant resonance in 57Cu, a measurement of its proton partial width can be used to extract the proton-capture resonance strength. An experiment to do this was performed at the NSCL using the Versatile Array of Neutron Detectors at Low Energy (VANDLE) along with the MoNA-LISA neutron detector arrays; and was the commissioning experiment for VANDLE with a transfer reaction. The events in the digitizing electronics of VANDLE were event-matched to the MoNA-LISA-Sweeper data acquisition system. Work supported in part by U.S. DOE, the NNSA SSAA, and the NSF.

  7. Phyotoxicity of diesel soil contamination on the germination of Lactuca sativa and Ipomoea batatas.

    Science.gov (United States)

    Fatokun, Kayode; Lewu, Francis Bayo; Zharare, Godfrey Elijah

    2015-11-01

    Phytotoxic effect of diesel contaminated soil on germination rate of Lactuca sativa and Ipomoea batatas, at two concentrations ranges (0-6ml and 0-30ml), were investigated and compared. Diesel soil contamination was simulated and soil samples were taken from contaminated soil at 1, 5,10, 15, 25, 50, 75 and 100 days should be after planting. The result showed that in both plant species, diesel inhibited germination in a concentration dependent manner, Also, the influence of diesel contamination diminished with increased time duration; suggesting possible reduction in diesel toxicity over time. However, germination of lettuce was significant and negatively correlated (r2 = -0.941) with diesel contamination as compared to sweet potato (r2 = -0.638).Critical concentration of diesel in relation to seed germination of L. sativa was lower than vegetative germination of I. batatas, indicating that germination of I. batatas was less sensitive to diesel contamination as compared to L. sativa.

  8. Antimutagenic and Anticarcinogenic Effect of Methanol Extracts of Sweetpotato (Ipomea batata) Leaves.

    Science.gov (United States)

    Kang, Hwan-Goo; Jeong, Sang-Hee; Cho, Joon-Hyoung

    2010-03-01

    The present study was conducted to investigate the antimutagenic potential of the methanolic extract from the leaves of sweet potato (Ipomea batatas, IB) with the SOS chromotest (umu test) and Salmonella typhimurium TA 98 and TA 100. The anticarcinogenic effects were also studied by calculation of the IC50 on human cancer cell lines and investigating the function of gap junction in rat liver epithelial cells. The IB extract inhibited dose-dependently the β-galactosidase activity induced spontaneously at concentration of more than 200 mg/ml in S. typhimurium TA 1535/pSK 1002, and decreased significantly (p batatas has antimutagenic and anticarcionogenic activity in vitro.

  9. Gamma irradiation effect on the chemical composition and the antioxidant activity of Ipomoea batatas L

    Energy Technology Data Exchange (ETDEWEB)

    Tahir, D., E-mail: dtahir@fmipa.unhas.ac.id; Halide, H., E-mail: dtahir@fmipa.unhas.ac.id; Kurniawan, D. [Department of Physics, Hasanuddin University, Makassar 90245 (Indonesia); Wahab, A. W. [Department of Chemistry, Hasanuddin University, Makassar 90245 (Indonesia)

    2014-09-25

    The chemical composition and antioxidant activity of Ipomoea batatas L. (sweet potato) were studied by x-ray fluorescence (XRF) spectroscopy, Fourier transform infrared spectroscopy, and by the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging capacity. The irradiation treatment was performed by using Cs-137 as a gamma sources in experimental equipment. Treatment by irradiation emerges as a possible conservation technique that has been tested successfully in several food products. The amount of chemical composition was changed and resulting new chemical for absorbed dose 40 mSv. Interestingly, it was found that gamma irradiation significantly increased the antioxidant activity, as measured by DPPH radical scavenging capacity. The antioxidant activity of Ipomoea batatas L. extract was dramatically increased in the non-irradiated sample to the sample irradiated at 40 mSv. These results indicate that gamma irradiation of Ipomoea batatas L. extract can enhance its antioxidant activity through the formation of a new chemical compound. Based on these results, increased antioxidant activity of Ipomoea batatas L. extracts by gamma rays can be applied to various industries, especially cosmetics, foodstuffs, and pharmaceuticals.

  10. Gamma irradiation effect on the chemical composition and the antioxidant activity of Ipomoea batatas L.

    Science.gov (United States)

    Tahir, D.; Halide, H.; Wahab, A. W.; Kurniawan, D.

    2014-09-01

    The chemical composition and antioxidant activity of Ipomoea batatas L. (sweet potato) were studied by x-ray fluorescence (XRF) spectroscopy, Fourier transform infrared spectroscopy, and by the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging capacity. The irradiation treatment was performed by using Cs-137 as a gamma sources in experimental equipment. Treatment by irradiation emerges as a possible conservation technique that has been tested successfully in several food products. The amount of chemical composition was changed and resulting new chemical for absorbed dose 40 mSv. Interestingly, it was found that gamma irradiation significantly increased the antioxidant activity, as measured by DPPH radical scavenging capacity. The antioxidant activity of Ipomoea batatas L. extract was dramatically increased in the non-irradiated sample to the sample irradiated at 40 mSv. These results indicate that gamma irradiation of Ipomoea batatas L. extract can enhance its antioxidant activity through the formation of a new chemical compound. Based on these results, increased antioxidant activity of Ipomoea batatas L. extracts by gamma rays can be applied to various industries, especially cosmetics, foodstuffs, and pharmaceuticals.

  11. Chemical optimization of protein extraction from sweet potato (Ipomoea batatas) peel

    Science.gov (United States)

    Proteins isolated from sweet potatoes (Ipomoea batatas) have been shown to possess antidiabetic, antioxidant, and antiproliferative properties. The objective of this study was to chemically optimize a process for extracting proteins from sweet potato peel. The extraction procedure involved mixing pe...

  12. An Ipomoea batatas iron-sulfur cluster scaffold protein gene, IbNFU1, is involved in salt tolerance.

    Directory of Open Access Journals (Sweden)

    Degao Liu

    Full Text Available Iron-sulfur cluster biosynthesis involving the nitrogen fixation (Nif proteins has been proposed as a general mechanism acting in various organisms. NifU-like protein may play an important role in protecting plants against abiotic and biotic stresses. An iron-sulfur cluster scaffold protein gene, IbNFU1, was isolated from a salt-tolerant sweetpotato (Ipomoea batatas (L. Lam. line LM79 in our previous study, but its role in sweetpotato stress tolerance was not investigated. In the present study, the IbNFU1 gene was introduced into a salt-sensitive sweetpotato cv. Lizixiang to characterize its function in salt tolerance. The IbNFU1-overexpressing sweetpotato plants exhibited significantly higher salt tolerance compared with the wild-type. Proline and reduced ascorbate content were significantly increased, whereas malonaldehyde (MDA content was significantly decreased in the transgenic plants. The activities of superoxide dismutase (SOD and photosynthesis were significantly enhanced in the transgenic plants. H2O2 was also found to be significantly less accumulated in the transgenic plants than in the wild-type. Overexpression of IbNFU1 up-regulated pyrroline-5-carboxylate synthase (P5CS and pyrroline-5-carboxylate reductase (P5CR genes under salt stress. The systemic up-regulation of reactive oxygen species (ROS scavenging genes was found in the transgenic plants under salt stress. These findings suggest that IbNFU1gene is involved in sweetpotato salt tolerance and enhances salt tolerance of the transgenic sweetpotato plants by regulating osmotic balance, protecting membrane integrity and photosynthesis and activating ROS scavenging system.

  13. Instant OpenCV starter

    CERN Document Server

    Dalal, Jayneil

    2013-01-01

    Get to grips with a new technology, understand what it is and what it can do for you, and then get to work with the most important features and tasks.A practical, quick, and hands-on guide for Python developers and hobbyists who want to get started with computer vision with OpenCV.This book is great for developers, hobbyists, and students new to computer vision who are looking to get a good grounding in how to use the OpenCV library. It's assumed that you will have some basic experience in C/C++ programming.

  14. Seleção de clones de batata-doce resistentes a Meloidogyne incognita raça 1 Selection of sweetpotato clones resistant to Meloidogyne incognita race 1

    Directory of Open Access Journals (Sweden)

    Aline Marchese

    2010-09-01

    Full Text Available O objetivo deste trabalho foi selecionar clones de batata-doce (Ipomoea batatas resistentes à raça 1 de Meloidogyne incognita e avaliar a eficiência do método de seleção empregado, pela estimação dos coeficientes de variação genética e ambiental e das herdabilidades no sentido amplo. Foram utilizados 123 genótipos de batata-doce, entre os quais quatro cultivares comerciais - Brazlândia Rosada, Brazlândia Roxa, Brazlândia Branca e Palmas -, e 119 acessos previamente selecionados no programa de melhoramento vegetal da Universidade Federal de Lavras. O delineamento experimental utilizado foi o de blocos aumentados, com três tratamentos comuns: as cultivares de batata-doce Brazlândia Branca e Palmas, e a cultivar de tomate Santa Clara, suscetível ao nematoide. A classificação dos níveis de resistência foi realizada de acordo com o fator de reprodução do nematoide e o índice de reprodução relativo à cultivar Santa Clara, de tomateiro. A relação entre os coeficientes de variação genética e ambiental e as herdabilidades no sentido amplo foram altas, tanto para o fator de reprodução quanto para o índice de reprodução dos nematoides, o que demonstra a eficiência do método empregado para a seleção de genótipos resistentes. Foram identificados 57 genótipos promissores de batata-doce, resistentes à raça 1 de M. incognita, e selecionados para continuar no programa de melhoramento.The objective of this work was to select sweetpotato (Ipomoea batatas resistant clones to Meloidogyne incognita race 1, and to assess the efficiency of the selection method deployed, through the estimation of genetic and environmental coefficients of variation, and broad-sense heritabilities. Genotypes assessed comprised 123 sweetpotato entries altogether, including four commercial cultivars - Brazlândia Rosada, Brazlândia Roxa, Brazlândia Branca, Palmas - and 119 clones previously selected by the Universidade Federal de Lavras

  15. Selective modification of nanoparticle arrays by laser-induced self assembly (MONA-LISA): putting control into bottom-up plasmonic nanostructuring

    Science.gov (United States)

    Kalfagiannis, Nikolaos; Siozios, Anastasios; Bellas, Dimitris V.; Toliopoulos, Dimosthenis; Bowen, Leon; Pliatsikas, Nikolaos; Cranton, Wayne M.; Kosmidis, Constantinos; Koutsogeorgis, Demosthenes C.; Lidorikis, Elefterios; Patsalas, Panos

    2016-04-01

    Induced Self Assembly by combining simultaneously large-scale character with atomic-scale precision. The proposed process can serve as a platform that will stimulate further progress towards the engineering of plasmonic devices. Electronic supplementary information (ESI) available: Extensive experimental results that corroborate the results and conclusions presented in the manuscript, but due to their extent cannot fit in the manuscript. The manuscript refers to specific sections here, but in its entirety this document presents the complete results of our MONA-LISA work. See DOI: 10.1039/c5nr09192f

  16. Comprimento e largura do tamanho ótimo da parcela experimental em batata

    Directory of Open Access Journals (Sweden)

    Storck Lindolfo

    2005-01-01

    Full Text Available A redução do erro experimental e o conseqüente aumento da precisão experimental podem ser obtidos com a aplicação do tamanho ótimo de parcelas experimentais. O objetivo deste trabalho foi investigar as relações da largura e do comprimento sobre a estimativa do tamanho ótimo de parcela na cultura de batata pelo método da regressão múltipla. Doze ensaios de uniformidade de batata da cultivar Macaca foram conduzidos na estação experimental da Fundação Estadual de Pesquisa Agropecuária em Júlio de Castilhos, Rio Grande do Sul. Cada ensaio foi constituído por 12 linhas com 24 covas. Foram estimados o ponto crítico e a natureza da função de superfície de resposta do coeficiente de variação em relação às diferentes larguras e comprimentos das parcelas planejadas. A análise de causa e efeito foi feita usando-se o tamanho ótimo de parcela como variável dependente e as estimativas dos parâmetros da função de superfície de resposta como variáveis independentes. O tamanho ótimo de parcela pode ser estimado procedendo-se a colheita das covas em linhas independentes. O efeito linear do comprimento é quem define o tamanho ótimo de parcela na cultura da batata. O tamanho ótimo de uma parcela experimental de batata é de 24 covas distribuídas em uma linha.

  17. Desempenho de cultivares nacionais de batata para produtividade de tubérculos

    Directory of Open Access Journals (Sweden)

    Giovani Olegario da Silva

    2014-10-01

    Full Text Available O objetivo deste trabalho foi verificar o desempenho dos cultivares de batata nacionais BRS Ana e BRS Clara, em comparação com os cultivares importados Ágata e Asterix, em relação à produtividade de tubérculos. Os experimentos foram realizados no município de Canoinhas, SC. Foram avaliados quatro cultivares de batata: BRS Ana, BRS Clara, Asterix e Ágata. O delineamento experimental foi em blocos casualizados, com quatro repetições. As parcelas continham quatro linhas com 20 plantas em cada linha. Cento e dez dias após o plantio foi realizada a colheita e, os tubérculos de cada parcela, avaliados para caracteres relacionados com a produtividade de tubérculos. Os dados foram submetidos à análise de variância e agrupamento de médias, por Skott & Knott, a 5% de probabilidade. Os cultivares de batata nacionais BRS Ana e BRS Clara foram mais produtivos do que os importados Asterix e Ágata; no entanto, são mais tardios, quanto ao ciclo vegetativo.

  18. Distributions, ex situ conservation priorities, and genetic resource potential of crop wild relatives of sweetpotato [Ipomoea batatas (L. Lam., I. series Batatas

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    Colin Kahlil Khoury

    2015-04-01

    Full Text Available Crop wild relatives of sweetpotato [Ipomoea batatas (L. Lam., I. series Batatas] have the potential to contribute to breeding objectives for this important root crop. Uncertainty in regard to species boundaries and their phylogenetic relationships, the limited availability of germplasm with which to perform crosses, and the difficulty of introgression of genes from wild species has constrained their utilization. Here we compile geographic occurrence data on relevant sweetpotato wild relatives and produce potential distribution models for the species. We then assess the comprehensiveness of ex situ germplasm collections, contextualize these results with research and breeding priorities, and use ecogeographic information to identify species with the potential to contribute desirable agronomic traits. The fourteen species that are considered the closest wild relatives of sweetpotato generally occur from the central United States to Argentina, with richness concentrated in Mesoamerica and in the extreme southeastern United States. Currently designated species differ among themselves and in comparison to the crop in their adaptations to temperature, precipitation, and edaphic characteristics and most species also show considerable intraspecific variation. With 79% of species identified as high priority for further collecting, we find that these crop genetic resources are highly under-represented in ex situ conservation systems and thus their availability to breeders and researchers is inadequate. We prioritize taxa and specific geographic locations for further collecting in order to improve the completeness of germplasm collections. In concert with enhanced conservation of sweetpotato wild relatives, further taxonomic research, characterization and evaluation of germplasm, and improving the techniques to overcome barriers to introgression with wild species are needed in order to mobilize these genetic resources for crop breeding.

  19. Somatic embryogenesis and plant regeneration in tissue cultures of sweet potato (Ipomea batatas Poir.).

    Science.gov (United States)

    Liu, J R; Cantliffe, D J

    1984-06-01

    Leaf, shoot-tip, stem, and root explants of sweet potato (Ipomea batatas Poir.) gave rise to two kinds of callus on nutrient agar medium containing 0.5 to 2.0 mg/l 2,4-D. One callus, bright- to pale-yellow, was compact and organized, while the other was dull-yellow and friable. The former callus gave rise to numerous globular and heart-shaped embryoids. When transferred onto hormone-free medium, the embryoids readily developed into a torpedo-shape before germination. The plantlets were transplanted to soil where they flowered and formed storage roots at maturity.

  20. Osmotic dehydration of sweet potato (Ipomoea batatas in ternary solutions Desidratação osmótica de batata-doce (Ipomoea batatas em soluções ternárias

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    Graziella Colato Antonio

    2008-09-01

    Full Text Available The aim of this work was to evaluate the osmotic dehydration of sweet potato (Ipomoea batatas using hypertonic sucrose solutions, with or without NaCl, at three different concentrations, at 40 °C. Highest water losses were obtained when the mixture of sucrose and NaCl was used. The addition of NaCl to osmotic solutions increases the driving force of the process and it is verified that the osmotic dehydration process is mainly influenced by changes in NaCl concentration, but the positive effect of the salt-sucrose interaction on soluble solids also determined the decrease of solid gain when solutes were at maximum concentrations. Mass transfer kinetics were modeled according to Peleg, Fick and Page's equations, which presented good fittings of the experimental data. Peleg's equation and Page's model presented the best fitting and showed excellent predictive capacity for water loss and salt gain data. The effective diffusivity determined using Fick's Second Law applied to slice geometry was found to be in the range from 3.82 x 10-11 to 7.46 x 10-11 m²/s for water loss and from 1.18 x 10-10 to 3.38 x 10-11 m²/s for solid gain.O objetivo deste trabalho foi avaliar a desidratação osmótica da batata-doce (Ipomoea batatas utilizando soluções hipertônicas de sacarose e/ou NaCl, em três concentrações diferentes a 40 °C. As perdas de água mais elevadas foram obtidas quando se utilizou a mistura de sacarose e NaCl. A adição do NaCl às soluções osmóticas aumenta a força motriz do processo. Verifica-se que o processo de desidratação osmótica é principalmente influenciado pela mudança da concentração de NaCl, mas o efeito positivo da interação do sal com a sacarose também determinou a diminuição do ganho de sólidos quando os solutos estavam em concentrações máximas. As cinéticas de transferência de massa foram modeladas de acordo com as Equações de Peleg, de Fick e de Page, e apresentaram bons ajustes aos dados

  1. A Functional mathematical index for predicting effects of food processing on eight sweet potato(Ipomoea batatas)cultivars

    Science.gov (United States)

    In this paper we apply an improved functional mathematical index (FMI), modified from those presented in previous publications, to define the influence of different cooking processes of eight sweet potato (Ipomoea batatas) cultivars on composition of six bioactive phenolic compounds (flavonoids). Th...

  2. Identificación in silico de un grupo de secuencias ortólogas conservadas (COS de Ipomoea batatas

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    Christian Solís Calero

    2013-03-01

    Full Text Available En el presente trabajo se describe una serie de procedimientos bioinformáticos para la predicción de un grupo secuencias ortólogas conservadas (COS de Ipomoea batatas, así como la evaluación de su potencial utilidad para la generación de marcadores moleculares y estudios de diversidad en esta especie. Con ese propósito usando los programas BLAST X y TBLASTN se realizó una comparación reciproca por similaridad entre secuencias ESTs procedentes de librerías de cDNAs de Ipomoea batatas, propias o disponibles de modo público en la base de datos GenBank, con secuencias COS de Arabidopsis thaliana. La anotación funcional de las secuencias COS predichas en Ipomoea batatas se realizo usando los programas BLASTX, INTERPROSCAN y PSI-BLAST. Se obtuvieron en total 204 secuencias COS candidatos de Ipomoea batatas, siendo 16 secuencias provenientes de una librería generada a partir de raíces de reserva. Se evaluó de modo computacional el polimorfismo de las secuencias COS de raíces de reserva, obteniéndose SNPs en 8 secuencias, y secuencias repetidas en tandem en una de ellas.

  3. Uptake and transformation of phenol and chlorophenols by hairy root cultures of Daucus carota, Ipomoea batatas and Solanum aviculare.

    Science.gov (United States)

    de Araujo, Brancilene Santos; Dec, Jerzy; Bollag, Jean Marc; Pletsch, Marcia

    2006-04-01

    Hairy root cultures of Daucus carota L., Ipomoea batatas L. and Solanum aviculare Forst were investigated for their susceptibility to the highly toxic pollutants phenol and chlorophenols and for the involvement of inherent peroxidases in the removal of phenols from liquid media. Roots of D. carota grew normally in medium containing 1000 micromol l(-1) of phenol, whilst normal growth of roots of I. batatas and S. aviculare was only possible at levels up to 500 micromol l(-1). In the presence of chlorophenols, normal root growth was possible only in concentrations not exceeding 50 micromol l(-1), except for I. batatas which was severely affected at all concentrations. Despite the reduction in biomass, the growth of S. aviculare cultures was sustained in medium containing up to 2000 micromol l(-1) of phenol or 2-chlorophenol, and up to 500 micromol l(-1) of 2,6-dichlorophenol. The amounts of phenol removed by the roots within 72 h of treatment were 72.7%, 90.7% and 98.6% of the initial concentration for D. carota, I. batatas and S. aviculare, respectively. For the removal of 2,6-dichlorophenol the values were, respectively, 83.0%, 57.7% and 73.1%. Phenols labelled with 14C were absorbed by the root tissues and condensed with highly polar cellular substances as well as being incorporated into the cell walls or membranes. The results suggest that S. aviculare, an ornamental plant, would be best suited for remediation trials under field conditions.

  4. Caracterização de variedades de batata doce (Ipomoea batatas L. através de descritores morfológicos e isoenzimáticos Morphological and isoenzymatic characterization of sweet potato (Ipomoea batatas L.

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    Eliane Augustin

    2000-03-01

    Full Text Available Ocorre grande variabilidade no germoplasma de batata-doce disponível no Rio Grande do Sul, mas nem todas populações podem ser caracterizadas através de aspectos morfológicos, havendo necessidade de recorrer a outros métodos, como análise de isoenzimas, para a sua diferenciação. A avaliação de características morfológicas e isoenzimáticas de dez acessos do Banco de Germoplasma de Hortaliças da Embrapa Clima Temperado foi o objetivo deste trabalho. Quatro descritores morfológicos foram utilizados, permitindo distinguir seis variedades. Análises de isoenzimas de peroxidase, aspartato transaminase e esterase foram efetuadas, utilizando-se eletroforese horizontal em gel de poliacrilamida. Foi observada similaridade máxima (1,00 estimada através do coeficiente de Jaccard, com base nesses marcadores, apenas entre as variedades Americana e Morada INTA. A análise de agrupamento permitiu a distinção de dois grupos e quatro subgrupos, utilizando UPGMA (método da média aritmética não ponderada. Os resultados obtidos permitiram a diferenciação dos dez acessos estudados e indicaram que a análise de isoenzimas associada a avaliações morfológicas é de grande valia na caracterização de germoplasma de batata-doce disponível no Rio Grande do Sul.Despite the variability observed in sweet potato germplasm found in the Rio Grande do Sul State, many populations can not be morphologically characterized without the use of additional methods, such as isoenzyme analysis. The aim of this work was to evaluate the morphological and isoenzymatic characteristics of ten accesses of the genetic resources program of Embrapa Clima Temperado. Four morphological descriptors were used, which allowed to distinguish six varieties. Polyacrylamyde electrophoresis was used to analyze peroxidase, aspartate transaminase and esterase isoenzymes. Maximum similarity (1.00, estimated through Jaccard coefficient, was observed only in comparisons between

  5. Reconstruction of muon tracks in a buried plastic scintillator muon telescope (BATATA)

    Energy Technology Data Exchange (ETDEWEB)

    Riggi, S., E-mail: simone.riggi@ct.in [Universidad de Santiago de Compostela (Spain); Insolia, A. [Universita di Catania (Italy); INFN, Sezione di Catania (Italy); Medina-Tanco, G. [Inst. de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, Mexico, D.F., C.P. 04510 (Mexico); Trovato, E. [Universita di Catania (Italy); INFN, Sezione di Catania (Italy)

    2012-10-01

    The BATATA muon counter was designed as one of the foreseen detector upgrades of the Pierre Auger Observatory with the main goal of quantifying the electromagnetic contamination of the muon signal as a function of the depth for cosmic ray shower energies above 10 PeV. Nevertheless BATATA offers also the possibility of measuring the incoming direction of secondary muons from both GeV and PeV primary cosmic rays. Large efforts have been already done to quantify from simulations the amount of the electromagnetic contamination and the expected muon identification performances. The present work is focused on the evaluation of the detector performances for muon track reconstruction. To this aim and in view of the detector installation in the field, expected to be completed by the first half of current year, we performed a GEANT4 end-to-end simulation of such device and set up a track reconstruction procedure. Typical results concerning achieved acceptance and angular resolution for muons are presented.

  6. Ácido giberélico, bissulfureto de carbono e ácido 2-4 cloroetil fosfônico e a dormência e produtividade de tubérculos de batata Giberellic acid, carbon-disulphide and 2-4 chloro-ethyl phosphonic and the dormancy and yield of potato tubers

    Directory of Open Access Journals (Sweden)

    Ricardo Antonio Ayub

    1999-01-01

    Full Text Available Com o objetivo de avaliar a eficiência do ácido giberélico, bissulfureto de carbono e ácido 2-4 cloroetil-fosfônico (EthrellR na quebra de dormência e na produção de batata, cv. "Marijke", foi conduzido um ensaio no período de 1990/ 91 em Piraí do Sul, PR . A superioridade do tratamento com o ácido 2-4-cloroetil-fosfônico em relação ao ácido giberélico e ao bissulfureto de carbono, aliada a sua facilidade de aplicação, justifica a sua recomendação com vistas a quebra de dormência de tubérculos do genótipo de batata em estudo, para a região de Piraí do Sul, PR, onde a dose de 842 mg.L-1 de EthrellR ocasionou a produção máxima de 23395 kg/ha.In order to evaluate the efficiency of giberellic acid, carbon-disulphide, and 2-4 chloro-ethyl phosphonic acid (EthrellR on dormancy breaking and yield of potato cv. 'Marijke', an essay was conducted at Piraí do Sul, PR, Brazil, during 1990/1991. The superiority of the EthrellR treatment over giberellic acid and carbon-disulphide, and its easy application, justify its use for dormancy breaking of potato tubers, for the studied genotype and location, at the rate of 842 mg.L-1, resulting in a potato yield of 23,395 kg/ha.

  7. Stock indexing and Potato virus Y elimination from potato plants cultivated in vitro Indexação de matrizes e eliminação do Potato virus Y em plantas de batata cultivadas in vitro

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    Luciana Cordeiro Nascimento

    2003-01-01

    Full Text Available Potato cultivars (Solanum tuberosum L. have shown degeneration or run out caused by viruses after several cycles of propagation using seed tubers from commercial fields. This work reports the occurrence of single and mixed infections of four potato viruses in Paraíba-Brazil and presents a method for Potato virus Y (PVY elimination, by using thermo-and chemotherapies. Plants of potato cv. Baraka were tested by direct antigen coating ELISA. Antisera against PVY, Potato virus X (PVX, Potato virus S (PVS, and Potato leafroll virus (PLRV were used. Materials with positive reaction to PVY were treated for virus elimination. Single node cuttings (1.0 cm length were excised and inoculated in Murashige & Skoog (MS medium, supplemented with 1.0 mg L-1 of kinetin, 0.001 mg L-1 of naphthalene acetic acid (NAA and 0.1 mg L-1 of gibberellic acid (GA3. The thermotherapy at approximately 37ºC, during 30 and 40 days, resulted in 20.0 and 37.5% PVY elimination, respectively. Chemotherapy was undertaken with Ribavirin (RBV, 5-Azacytidine (AZA, and 3-Deazauridine (DZD. The RBV showed the highest rate of virus eradication, with 55.5% virus-free plants. Simultaneous thermo and chemotherapy had higher efficiency for the elimination of PVY, reaching rates of healthy plants of 83.3% with RBV, 70.0% with AZA, and 50.0% with DZD.Cultivares de batata (Solanum tuberosum L. têm mostrado degenerescência causada por vírus após ciclos sucessivos do uso de tubérculos de campos comerciais como material propagativo. Este trabalho verifica a ocorrência de infecção simples e mista de quatro vírus da batata na Paraíba e apresenta adequação da técnica de cultivo in vitro para obtenção de material livre de Potato virus Y (PVY, incluindo uso de microestacas, termo e quimioterapia. Plantas de batata do cv. Baraka foram submetidas à indexação sorológica pelo teste "direct antigen coating" ELISA. Utilizaram-se antissoros contra o PVY, Potato virus X (PVX, Potato virus

  8. Chemical Constituents from the Tubers of Ipomoea batatas%甘薯的化学成分

    Institute of Scientific and Technical Information of China (English)

    尹永芹; 孔令义

    2008-01-01

    目的:对甘薯(Ipomoea batatas)的化学成分进行研究.方法:运用多种层析方法进行分离纯化,通过波谱和化学方法确定化合物的结构.结果:分离鉴定了5个化合物,即乙酰-β-香树醇(1)、表木栓醇(2)、咖啡酸乙酯(3)、咖啡酸(4)、simonin Ⅳ(5).结论:5个化合物为首次从该植物中分离得到,其中simonin Ⅳ(5)为首次从甘薯中分离得到的树脂糖苷类化合物.

  9. Desempenho de clones elite de batata para caracteres agronômicos e de qualidade industrial

    Directory of Open Access Journals (Sweden)

    Giovani Olegario da Silva

    2015-02-01

    Full Text Available O objetivo deste trabalho foi verificar o desempenho de clones elite de batata, em relação a caracteres agronômicos e de qualidade industrial. Os experimentos foram realizados em Pelotas, RS, Canoinhas, SC, e Londrina, PR. Foi avaliado um conjunto de clones elite, pertencentes ao Programa de Melhoramento Genético de Batata, da Embrapa. O delineamento experimental foi o de blocos casualizados, com três repetições para Pelotas e Londrina e quatro para Canoinhas. Foram avaliados os caracteres massa total de tubérculos, massa comercial de tubérculos, número de tubérculos comerciais, percentagem de massa de tubérculos comerciais, massa média de tubérculos comerciais, peso específico, cor de fritura e ciclo vegetativo. A partir dos dados obtidos foram realizadas as análises de variância para cada local e teste de agrupamento de médias para cada caráter. Para identificação de clones apropriados ao mercado 'in natura', em que é fundamental o elevado potencial produtivo e precocidade, os clones mais promissores foram F80-03-06 e CL02-05, quando comparados à cultivar testemunha Ágata. Para o processamento industrial, em que o peso específico, a cor de fritura e o rendimento de tubérculo são caracteres importantes, destacou-se o clone F81-01-06, que apesar de não apresentar os maiores rendimentos totais, apresentou tubérculos grandes, ciclo vegetativo intermediário e boa aptidão para fritura, quando comparando-se ao cultivar testemunha Asterix.

  10. Sensorial, physical and chemical evaluation of bio-fortified Ipomoea batatas

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    Mara N.G. Santos

    2014-08-01

    Full Text Available Context: Bio-fortified sweet potato, Ipomoea batatas (L. Lamarck beta-carotene rich, has been included in the most vulnerable population’s diet with the purpose of reducing health disturbances associated with hipovitaminosis. Aims:To evaluate a physical and chemical analysis of total carotenes and beta-carotene and to determine the antioxidant potential as well as to carry out a sensorial analysis of the bio-fortified Ipomoea batatas (L. Lamarck (BDB in nature and processed. Methods: BDB was processed as sweet (in natura, paste and syrup and physicochemical characteristics were compared, total carotenoids, beta-carotene, antioxidant activity (DPPH and microbiological and sensory analyses were performed. Results:The analysis of total carotenoids, beta-carotene and anti-oxidant potential showed the following results: BDB in nature – 11.81 mg/100 g/440.5 mg/100 g/26.30%; sweet paste – 0.61 mg/100 g/53.5 mg/100 g/53.40% and savored syrup – 0.85 mg/100 g/46.0 mg/100 g/14.30%. The methods of conservation avoided the coliforms growth at 35 and 45°C, Staphylococcus coagulasa positivo, Bacillus cereus and Salmonella in all elaborated candies. The sensorial analysis didn’t detect significant differences among the syrup or paste. Conclusions: The conservation methods have an important function keeping the physical, chemical characteristics and sensorial of BDB, although they can influence in their chemical and nutritional composition, mainly in relation to the quantity of total carotenoids and beta-carotene.

  11. Changes in electrophoretic profiles of Ipomoea batatas (sweet potato induced by gamma radiation

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    Celso Luiz Salgueiro Lage

    2002-06-01

    Full Text Available The ability of nodal segments of Ipomoea batatas to differentiate shoots and roots was evaluated after gamma irradiation. Shoot differentiation was less sensitive to irradiation than roots. However, at 90 Gy, no shoot was able to regenerate a new plant; in contrast 76 % of the roots from irradiated nodal segments continued to grow. The gamma radiation also induced changes in electrophoretic profiles of peroxidases of storage roots. Plants originated from irradiated storage roots presented changes in leaf peroxidase profiles very similar to those produced by leaves directly irradiated. The peroxidase profile of absorbent roots from irradiated storage roots was different from that obtained from directly irradiated absorbent roots.A capacidade de Ipomoea batatas diferenciar parte aérea e raízes foi avaliada após irradiação com raios gama. A diferenciação da parte aérea foi menos sensível que a das raízes. Contudo, na dose de 90 Gy nenhum broto diferenciado regenerou planta, enquanto 76 % das raízes diferenciadas dos segmentos nodais irradiados manteve o crescimento. A radiação também induziu mudanças no perfil elotroforético de isoperoxidases. Plantas originadas de raízes tuberosas irradiadas apresentaram alteração no perfil de isoperoxidases foliares semelhantes ao perfil de folhas diretamente irradiadas. O perfil de isoperoxidases de raízes absorventes irradiadas diretamente não apresentou o mesmo padrão do perfil das raízes absorventes desenvolvidas de raízes tuberosas irradiadas.

  12. Batatas Fritas, Uma História de Amor e Amizade

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    Claudia Silva Ribeiro Alves

    2017-06-01

    Full Text Available O presente caso para ensino trata de uma história real de uma indústria fabricante de batatas fritas constituída na cidade de Itajaí/SC, idealizada e fundada por Silvio Zaguini em 26 de dezembro de 1989, que transformou uma pequena fábrica de batata palha em uma grande marca reconhecida no mercado catarinense. No entanto, a trajetória da empresa é marcada por momentos de amor e sofrimento, especialmente no ano de 2003, quando se depara com uma importante perda na família que desestrutura emocionalmente os sócios da empresa. Apesar da indústria apresentar resultados financeiros positivos e estar ampliando seu negócio, Silvio decide vender a marca para seu amigo Odemar Müller, proprietário da empresa DMüller, voltada para outro ramo de atividade comercial. A Distribuidora Müller foi fundada em 06 de setembro de 1965 e é líder no mercado em que atua, além de possuir solidez financeira e ser reconhecida no estado pela sua capacidade instalada, tecnologia, logística e comprometimento com seus clientes. A história de amizade e respeito envolve a venda da empresa para seu grande amigo e proprietário da distribuidora e o dilema na condução de negócios distintos. Este caso real coloca os estudantes frente a questão de tomada de decisão estratégica e mercadológica.

  13. Phenology and morphological diversity of sweet potato (Ipomoea batatas landraces of the Vale do Ribeira Fenologia e diversidade morfológica de etnovariedades de batata-doce (Ipomoea batatas do Vale do Ribeira

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    Elizabeth Ann Veasey

    2007-08-01

    Full Text Available The phenotypic diversity of sweet potato (Ipomoea batatas landraces was assessed using morphological traits, verifying how this diversity is distributed among the households and settlements of the Vale do Ribeira, Brazil. A total of 74 accessions, involving 53 landraces, collected from 30 households distributed among 18 settlements that practice traditional agriculture in the municipalities of Iguape, Ilha Comprida, and Cananeia, as well as four commercial varieties acquired in markets of Iguape and Piracicaba, were evaluated under an ex situ experimental condition in Piracicaba, SP, Brazil. Nine phenological and floral descriptors, nine morphological vegetative aerial descriptors and five storage root traits were recorded. The 14 aerial vegetative and root descriptors were evaluated as binary data, totaling 74 attributes. Cluster analyses were made using the Jaccard similarity index and the UPGMA (unweighted pair group method with arithmetic mean agglomerative method. Binary data was also submitted to a variance analysis (AMOVA. No defined groups were observed, indicating that the diversity of the landraces is not structured in space, but considerable morphological variation was found in this area (Jaccard similarity index varying from 0.12 to 1.0. Most of the variability occurred within households (64.4%, followed by the distribution among households within settlements (27.1% and among settlements (8.4%. Thus, the traditional agriculturists of Vale do Ribeira maintain a high morphological diversity for sweet potato within their households, which can be assumed to be produced by the outcrossing mating system of this species and somatic mutation events, as well as the exchange system at local and regional levels.Avaliou-se a diversidade fenotípica de etnovariedades de batata-doce através de descritores morfológicos, visando verificar como esta diversidade está distribuída em nível de roças e comunidades do Vale do Ribeira, SP, Brasil

  14. Ação de acibenzolar-s-methyl isolado e em mistura com fungicidas no controle da requeima da batata Action of acibenzolar-S-methyl, isolated and in a mixture with fungicides on potato late blight control

    Directory of Open Access Journals (Sweden)

    Jesus G. Töfoli

    2005-07-01

    Full Text Available Visando avaliar o desempenho de acibenzolar-S-methyl (BTH isolado e em mistura com os fungicidas mancozeb, chlorothalonil e metaxyl-M+chlorothalonil no controle da requeima da batata, foram realizados dois experimentos em cultivos comerciais nos municípios paulistas de Pilar do Sul (cv. Baraka e Bragança Paulista (cv. Asterix, de maio a agosto e agosto a outubro de 2001, respectivamente. O delineamento experimental foi o de blocos ao acaso com 4 repetições, com cada parcela medindo 25 m². Durante os experimentos foram realizadas um total de 10 pulverizações, a intervalos de 5 a 10 dias com pulverizador costal munido de barra de aplicação contendo 5 bicos TXKV26, pressão constante (4 bar e volume médio de 800 L/ha. Avaliou-se a severidade nas folhas (0 a 100%, nas hastes ( escala de notas de 1 a 5 e a produtividade comercial de tubérculos. O BTH apresentou efeitos significativos de controle quando utilizado isolado e em mistura com fungicidas de contato e sistêmico. Os maiores aumentos relativos de produtividade foram verificados para as misturas de BTH com mancozeb e chlorothalonil.To evaluate the performance of acibenzolar-S-methyl (BTH, alone and mixed with mancozeb, chlorothalonil and metaxyl-M+chlorothalonil, for the control of potato late blight, two experiments were carried out in commercial crops in the counties of Pilar do Sul (cv. Baraka and Bragança Paulista (cv. Asterix, state of São Paulo, Brazil, from May to August and August to October 2001, respectively. The experimental design was of randomized blocks with four replications, with each plot measuring 25 m². A total of 10 sprayings was done at 5- to 10-day intervals with a backpack sprayer using a 5-nozzle (TXKV26 spray wand, constant pressure of 4 bars (58 psi and average volume of 800 L/ha. Evaluations were done in regard to the severity on the leaves (0 to 100%, on the stems (score from 1 to 5 and the commercial yield of tubers. BTH presented expressive effects

  15. OpenCV for secret agents

    CERN Document Server

    Howse, Joseph

    2015-01-01

    This book is for programmers who want to expand their skills by building fun, smart, and useful systems with OpenCV. The projects are ideal in helping you to think creatively about the uses of computer vision, natural user interfaces, and ubiquitous computers (in your home, car, and hand).

  16. IPOMOEA BATATAS)

    African Journals Online (AJOL)

    eobe

    petroleum wastes, leaking storage tanks and accidental ... health, surface and ground water quality, the nature and viability of ..... Biotechnology, Vol. 24, Number (2-3) ... pollutants in Europe”. .... “Removal of lead ion from industrial waste water.

  17. Impact of the nutrients N and K and soluble sugars on Diabrotica speciosa (Germar) (Coleoptera, Chrysomelidae) and Agrotis ipsilon (Hufnagel) (Lepidoptera, Noctuidae) populations in potato crops, Solanum tuberosum L. (Solanaceae); Impacto dos nutrientes N e K e de acucares soluveis sobre populacoes de Diabrotica speciosa (Germar) (Coleoptera, Chrysomelidae) e Agrotis ipsilon (Hufnagel) (Lepidoptera, Noctuidae) na cultura da batata, Solanum tuberosum L. (Solanaceae)

    Energy Technology Data Exchange (ETDEWEB)

    Azeredo, Edson Henrique de [Universidade Federal Fluminense (UFF), Pinheiral, RJ (Brazil). Pro-Reitoria de Extensao], e-mail: edsonhenrique.azeredo@bol.com.br; Lima, Eduardo [Universidade Federal Rural do Rio de Janeiro (UFRRJ), Seropedica, RJ (Brazil). Inst. de Agronomia. Dept. de Solos; Cassino, Paulo Cesar Rodrigues [Universidade Federal Rural do Rio de Janeiro (UFRRJ), Seropedica, RJ (Brazil). Inst. de Biologia. Centro Integrado de Manejo de Pragas C.R.G.

    2004-03-15

    Impact of the nutrients N and K and soluble sugars on Diabrotica speciosa (Germar) (Coleoptera, Chrysomelidae) and Agrotis ipsilon (Huefnagel) (Lepidoptera, Noctuidae) populations in potato crops, Solanum tuberosum L. (Solanaceae). The occurrence of Diabrotica speciosa (Germar, 1824) and Agrotis ipsilon (Huefnagel, 1767) on the potato cultivars Achat and Monalisa, influenced by nitrogen and potassium dosage, and minimum quantity of soluble sugars, was studied. The following parameters were evaluated: concentration of mineral nutrient and sugar in green leaf, senescent leaf, leaf in abscission, stem, tubercle and total plant using extracts of infusion in ethanol 80%. The largest infestation of D. speciosa larvae was on Monalisa cultivar at 150 kg.ha{sup -1} of N + K with 27.03% at P< 0,05. It was observed that the effect of the dosage of N + K in the increment of the concentration of soluble sugars increased the damages in the tubercles and stems by A. ipsilon. The infestation by these species increased to 58.82% on the Monalisa cultivar, when the nitrogen dosage increased from zero to 150 kg.ha{sup -1}, in the absence of potassium. On the other hand, high dosage of K reduced the damages by A. ipsilon on Monalisa cultivar. However, it did not influence the storage of soluble sugar. The results indicated that in Achat cultivar the accumulated soluble sugar was reduced, probably sensitized by elevation of potassic fertilization dosing, differing from Monalisa cultivar, in which the influence was by nitrogen dosing. (author)

  18. Effect of Sodium Cyanide on Wheat (Triticum durum cv. Altar and T. aestivum cv. Cumhuriyet)

    DEFF Research Database (Denmark)

    Gemici, Meliha; Karshenass, A.M.; Tan, Kit

    2008-01-01

    The effect of sodium cyanide on the morphology of stem, leaves and grain yields of Triticum durum cv. Altar and Triticum aestivum cv. Cumhuriyet grown under glass was studied. Seeds were planted in six different sets of pots containing ordinary garden soil. After formation of the first leaves......, the first set was used as the control and watered using ordinary bottled water sold commercially. The other five sets with T. durum cv. Altar and T. aestivum cv. Cumhuriyet seedlings were additionally watered with various concentrations of sodium cyanide, the test-quantity used being 10-50 mg/L. Growth...... of individual plants was monitored until grain production. It was found that the sodium cyanide concentrations in the feed solutions affected plant stature, with the plants becoming progressively dwarfed with increasing dosage. Anomalies in the morphological and anatomical structure of the plant were also noted...

  19. The Limbic-Prefrontal Network Modulated by Electroacupuncture at CV4 and CV12

    Directory of Open Access Journals (Sweden)

    Jiliang Fang

    2012-01-01

    Full Text Available fMRI studies showed that acupuncture could induce hemodynamic changes in brain networks. Many of these studies focused on whether specific acupoints could activate specific brain regions and were often limited to manual acupuncture at acupoints on the limbs. In this fMRI study, we investigated acupuncture's modulation effects on brain functional networks by electroacupuncture (EA at acupoints on the midline of abdomen. Acupoints Guanyuan (CV4 and Zhongwan (CV12 were stimulated in 21 healthy volunteers. The needling sensations, brain activation, and functional connectivity were studied. We found that the limbic-prefrontal functional network was deactivated by EA at CV4 and CV12. More importantly, the local functional connectivity was significantly changed during EA stimulation, and the change persisted during the period after the stimulation. Although minor differences existed, both acupoints similarly modulated the limbic-prefrontal functional network, which is overlapped with the functional circuits associated with emotional and cognitive regulation.

  20. Isoenzymatic variability in wild potatoes Variabilidade isoenzimática em batata silvestre

    Directory of Open Access Journals (Sweden)

    Beatriz Helena Gomes Rocha

    2001-05-01

    Full Text Available Two species of wild potato Solanum commersonii, subspecies commersonii and malmeanum, and S. chacoense, subspecies muelleri occur in southern Brazil. Their rusticity and easy adaptation to extreme climatic conditions make them valuable for breeding programs. The objective of this work was to analyze the isoenzymatic variability of 113 clones of wild potato subspecies. They were collected and maintained at Embrapa-Centro de Pesquisa Agropecuária de Clima Temperado, at Pelotas, RS, Brazil. Enzymes involved in energetic (group I or in peripherical (group II metabolism constituted the material used. Polyacrylamide horizontal gel electrophoresis was used to analyze peroxidase, aspartate transaminase, phosphoglucomutase and isocitrate dehydrogenase isoenzymes. Solanum spp. has considerable genetic variability for isoenzymatic patterns. Cluster analysis classified the clones into 51 subgroups, based on electrophoretic variants of group I enzymes, and into 89, when group II enzyme variants were added. Genotypic differentiation of S. chacoense muelleri in relation to S. commersonii commersonii and S. commersonii malmeanum is evident when expressed through similarity and cluster analysis.No sul do Brasil ocorrem apenas duas espécies silvestres de batata, Solanum commersonii, com as subespécies commersonii e malmeanum, e S. chacoense, com a subespécie muelleri, de interesse aos programas de melhoramento, pela rusticidade e fácil adaptação a condições climáticas extremas. O objetivo deste trabalho foi analisar a variabilidade isoenzimática de 113 clones de batata silvestre. O material foi coletado e mantido na Embrapa-Centro de Pesquisa Agropecuária de Clima Temperado, em Pelotas, RS. Foram usadas enzimas envolvidas nos metabolismos energético (grupo I e periférico (grupo II. Eletroforese horizontal em gel de poliacrilamida foi empregada para análise de isoenzimas de peroxidase, aspartato transaminase, fosfoglucomutase e isocitrato

  1. Composição química de tubérculos de batata para processamento, cultivados sob diferentes doses e fontes de potássio Chemical composition of potato tubers for processing, grown in different levels and sources of potassium

    Directory of Open Access Journals (Sweden)

    Diomar Augusto de Quadros

    2009-06-01

    Full Text Available A batata é considerada um dos poucos alimentos capazes de nutrir a crescente população mundial por ser fonte de energia e conter elevado teor de proteínas, vitaminas e minerais. Porém os teores desses compostos sofrem influência de diversos fatores como: cultivar utilizada, condições edafoclimáticas, safra, colheita e armazenamento. Assim, o presente trabalho teve como objetivo determinar a composição química de batatas (cvs. Atlantic, Asterix, Innovator e Shepody, cultivadas em quatro doses (0, 120, 360 e 1080 kg K2O.ha-1 e duas fontes de potássio (KCl e K2SO4. As amostras foram provenientes do município de Fazenda Rio Grande/PR, cultivadas na safra das águas. Foram realizadas as seguintes determinações: vitamina C, umidade, proteínas, lipídios, cinzas, carboidratos, energia, amido e potássio. A cv. Atlantic apresentou os maiores teores médios de cinzas (0,93% e potássio (528,80 mg.100 g-1; a cv. Asterix, a maior umidade (81,47%; a cv. Innovator, os maiores teores de proteínas (2,25%, lipídios (0,06%, carboidratos (17,72%, energia (80,40 kcal.100 g-1 e amido (16,45%; e a cv. Shepody obteve a maior quantidade de vitamina C (31,01 mg.100 g-1. Pode-se concluir que a composição química das batatas é dependente da cultivar e da adubação potássica (dose e fonte empregada.Potato is considered one of the few foods able to nourish the growing world population for being a source of energy and containing high levels of proteins, vitamins, and minerals. However, these compounds suffer influence of several factors such as the use of cultivars, soil and climate characteristics, crop, harvest, and storage. Hence, the present paper aims to determine the potato chemical composition (cvs. Atlantic, Asterix, Innovator and Shepody, grown under four different levels (0, 120, 360 and 1080 kg K2O.ha-1 and two different sources of potassium (KCl e K2SO4. Samples of crop water production were collected from a farm in the city of Fazenda

  2. BATATA: A device to characterize the punch-through observed in underground muon detectors and to operate as a prototype for AMIGA

    CERN Document Server

    Medina-Tanco, Gustavo

    2009-01-01

    BATATA is a hodoscope comprising three X-Y planes of plastic scintillation detectors. This system of buried counters is complemented by an array of 3 water-Cherenkov detectors, located at the vertices of an equilateral triangle with 200 m sides. This small surface array is triggered by extensive air showers. The BATATA detector will be installed at the centre of the AMIGA array, where it will be used to quantify the electromagnetic contamination of the muon signal as a function of depth, and so to validate, in situ, the numerical estimates made of the optimal depth for the AMIGA muon detectors. BATATA will also serves as a prototype to aid the design of these detectors.

  3. CV controls from design to operation

    CERN Document Server

    Blanc, D

    2002-01-01

    The cooling and Ventilation (CV) group has emphasised the need to redefine its organisational structure at the end of 98. The main objective of this operation was to ensure the CV group to be more competitive and efficient through the growing tasks of the LHC projects. The main evolution given to this reorganisation is that the new structure is more project oriented and then operates on three distinct axes: Design, Work and Operation. Process control project management requires a complete and early interaction and participation of all the actors involved. This procedure to be efficient and constructive must be considered and performed not only during the design stage but along the project planning phases and must go beyond the completion work including the process control operation activity. The paper explains the present project management for process control. It describes the present constraints and gives suggestions to a different approach to these projects to improve performances and efficiency of a contr...

  4. Earth, Moon, Sun, and CV Accretion Disks

    CERN Document Server

    Montgomery, M M

    2009-01-01

    Net tidal torque by the secondary on a misaligned accretion disk, like the net tidal torque by the Moon and the Sun on the equatorial bulge of the spinning and tilted Earth, is suggested by others to be a source to retrograde precession in non-magnetic, accreting Cataclysmic Variable (CV) Dwarf Novae systems that show negative superhumps in their light curves. We investigate this idea in this work. We generate a generic theoretical expression for retrograde precession in spinning disks that are misaligned with the orbital plane. Our generic theoretical expression matches that which describes the retrograde precession of Earths' equinoxes. By making appropriate assumptions, we reduce our generic theoretical expression to those generated by others, or to those used by others, to describe retrograde precession in protostellar, protoplanetary, X-ray binary, non-magnetic CV DN, quasar and black hole systems. We find that differential rotation and effects on the disk by the accretion stream must be addressed. Our a...

  5. Marcadores funcionales relacionados con la síntesis de pigmentos y su localización en un mapa de ligamiento en Ipomoea batatas L. Lam

    OpenAIRE

    Arizio, Carla Marcela

    2011-01-01

    Ipomoea batatas L. Lam, es una especie de importancia agrícola, que se cultiva en más de 100 países con una producción anual de 120 millones de toneladas. Esta especie presenta una raíz engrosada denominada batata que constituye un alimento básico en muchos países subdesarrollados. En la piel y en la pulpa de la raíz engrosada puede observarse una amplia variedad de colores. Estos colores se deben a la presencia de dos clases de pigmentos: las antocianinas (flavonoides) y los carotenoides. Es...

  6. High Yield Culture Technique of Summer Ipomoea batatas in Binhai County%滨海县夏山芋高产栽培技术

    Institute of Scientific and Technical Information of China (English)

    李庆体; 金叶红; 迟金和; 李晴; 刘永

    2011-01-01

    从品质选择、育苗、地块选择、施肥、移栽、除草、病虫害防治、收获与贮藏等方面总结夏山芋高产栽培技术,以提高滨海县的山芋生产水平。%The high yield culture techniques of summer Ipomoea batatas were summarized from several aspects,such as variety selection,seeding,field selection,fertilization,transplantation,weeding,disease and insect control,harvesting and storage,so as to improve the production level of Ipomoea batatas in Binhai County.

  7. Estabilidade de farinha de batata-doce biofortificada Stability of biofortified sweet potato flour

    Directory of Open Access Journals (Sweden)

    Rosa Maria Vercelino Alves

    2012-03-01

    Full Text Available A farinha de batata-doce, quando elaborada a partir de raízes com alto teor de β-caroteno, é fonte de pró-vitamina A, que apresenta efeitos benéficos na saúde humana. Visando contribuir com o suprimento de vitamina A na alimentação de populações carentes, a EMBRAPA tem selecionado e melhorado culturas via biofortificação, como da batata-doce, e pesquisado o desenvolvimento de produtos com esta matéria-prima biofortificada. Complementando esses desenvolvimentos, o objetivo deste estudo foi comparar o efeito do tipo de embalagem e do sistema de acondicionamento do produto na preservação de carotenoides de farinha de batata-doce biofortificada. A farinha foi acondicionada com e sem vácuo, em embalagens com diferentes barreiras ao oxigênio, vapor d'água e luz (PET/Al/PEBD, PETmet/PEBD, PEBD/PA/PEBD e PEBD e estocada a 25 °C/75%UR com e sem exposição à luz por um ano. Perdas de 50% de carotenoides totais e β-caroteno ocorreram na farinha em PETmet/PEBD e PEBD sem vácuo, aos 50 dias de estocagem, em razão do teor de oxigênio residual presente no espaço livre e também da alta permeação de oxigênio pelo material no caso do PEBD, no qual a composição do ar foi mantida durante todo o estudo. Perdas de 50% de carotenoides ocorreram aos 90 dias com ou sem exposição à luz no produto em PEBD/PA/PEBD com vácuo, indicando que a reação de oxidação de carotenoides sob luz se restringe apenas à farinha em contato com a superfície da embalagem. Sob vácuo e em PETmet/PEBD, os teores de carotenoides na farinha diminuíram ligeiramente e foram mantidos no PET/Al/PEBD, até 360 dias de estocagem. Os resultados indicaram que a redução do teor de oxigênio no espaço livre da embalagem por meio da aplicação de vácuo aliada ao uso de materiais de embalagem com barreira ao oxigênio da ordem de grandeza de PET com metalização barreira são os fatores mais importantes na preservação de carotenoides em farinha de batata

  8. Microbial deterioration of white variety sweet potato (Ipomoea batatas under different storage structures

    Directory of Open Access Journals (Sweden)

    Wisdom Amoa-Awua

    2010-01-01

    Full Text Available Post-harvest protection of white variety sweet potato (Ipomoea batatas has been dealt with rarely in the past, although it is comparatively easy to grow and has high consumer acceptability in Ghana. Microbial deterioration of sweet potato roots stored in three different storage structures was studied. The sweet potato roots initially cured for 7 and 14 days were stored in traditional, pit, and clamp storage structures for a maximum of 28 days. For the 7 days-cured sweet potato roots, the bac­teria population in the three different storage structures increased by 1.2-2.3 log cfu/g whereas for the 14 days-cured roots, the bacteria population was 0.1-1.0 log cfu/g within 28 days of storage. The fungal population in the 14 days-cured sweet potato roots was higher than in the 7 days-cured sweet potato roots by 0.6-1.6 log cfu/g for 28 days of storage. For both the 7 and 14 days-cured sweet potato roots, the sweet potato roots stored for 28 days in the three different storage structures had a higher microbial count compared to the sweet potato roots stored for 14 days. Aspergillus flavus was the most dominant fungal species occurring in all of the three different storage structures followed by A. niger, Rhizopus stolonifer, Tricho-derma viride, Fusarium oxysporum, Penicillium digitatum, Cladosporium herbarum,and Aspergillus ochraceus, in that order.

  9. Phytochemical screening, antioxidant, and antimicrobial activities of the crude leaves′ extract from Ipomoea batatas (L. Lam

    Directory of Open Access Journals (Sweden)

    Márcia Thaís Pochapski

    2011-01-01

    Full Text Available Background: Ipomoea batatas (L. Lam., popularly known as sweet potato (SP, has played an important role as an energy and a phytochemical source in human nutrition and animal feeding. Ethnopharmacological data show that SP leaves have been effectively used in herbal medicine to treat inflammatory and/or infectious oral diseases in Brazil. The aim of this research was to evaluate the phytochemical, antioxidant, and antimicrobial activities of the crude leaves′ extract of SP leaves. Materials and Methods: The screening was performed for triterpenes/steroids, alkaloids, anthraquinones, coumarins, flavonoids, saponins, tannins, and phenolic acids. The color intensity or the precipitate formation was used as analytical responses to these tests. The total antioxidant capacity was evaluated by the phosphomolybdenum complex method. Antimicrobial activity was made by agar disk and agar well diffusion tests. Results: The phytochemical screening showed positive results for triterpenes/steroids, alkaloids, anthraquinones, coumarins, flavonoids, saponins, tannins, and phenolic acids. Total contents of 345.65, 328.44, and 662.02 mg were respectively obtained for alkaloids, anthraquinones, and phenolic compounds in 100 g of the dry sample. The total antioxidant capacity was 42.94% as compared to ascorbic acid. For antimicrobial studies, no concentration of the SP freeze dried extract was able to inhibit the growth of Streptococcus mutans, S. mitis, Staphylococcus aureus, and Candida albicans in both agar disk and agar well diffusion tests. Conclusions: SP leaves demonstrated the presence of secondary metabolites with potential biological activities. No antimicrobial activity was observed.

  10. Uptake of iodine-131 in tropical crops. [Ipomoea batatas; Ipomoea reptans; Lycopersicon

    Energy Technology Data Exchange (ETDEWEB)

    Asprer, G.A.; Lansangan, L.M.

    1986-01-01

    Vegetable crops which include sweet potato tops (Ipomoea batatas), kangkong (Ipomoea repitans) and tomato plants were grown in dark-painted jars containing Hoagland-Arnon modified nutrient solution, utilizing the technique of hydroponics. The experiments for sweet potato tops and kangkong plants were duplicated for replicate studies and steady-state conditions were simulated throughout. Tomato plants were grown in the same manner but growth was observed to be hampered when starting from mature plants. Radioiodine was added to the nutrient medium containing 0.5% non-radioactive NaI solution. The solution in the jar was adjusted daily so as to maintain a constant concentration which would simulate routine releases that are essentially continuous. After incorporating the radioiodine to the solution, 10 ml aliquot was taken and counted for radioactivity by means of a 5'' x 5'' NaI(T1) detector connected to the multichannel gamma analyzer. Both plants and solution were counted for radioactivity at different time intervals using the same geometry. Results indicate that the activity in the plants were relatively higher than that of the solution. The activity tends to level off or decrease after a few days. The concentration factor which is the ratio of the activity in the plant (uCi/gm) over the activity in the medium (uCi/ml) varied for each time interval. 12 references, 2 figures, 3 tables.

  11. Purple sweet potato (Ipomea Batatas P. as dentin hypersensitivity desensitization gel

    Directory of Open Access Journals (Sweden)

    Chariza Hanum Mayvita Iskandar

    2015-12-01

    Full Text Available Background: Dentin hypersensitivity is a short sharp sense of pain in the teeth when exposed to excitatory stimulus. A total of 74% of world population experiencing dentin hypersensitivity. Home treatment topical desensitization is rarely found in Indonesia. The use of dentrifice is less practical because it must be done with regular brushing. Indonesia has abundant natural resources, one of which is purple sweet potato. Purple sweet potato (Ipomea Batatas P. has highest potasium ions compared to other foodstuffs. Potassium ions can be a solution of dentin hypersensitivity by temporary blocking the suffix pulp nerve impulses. Purpose: The research objective was to determine the effectiveness of the 10% purple sweet potato extract gel of the dental pain threshold score. Method: An experimental study carried out by dental pain threshold score measurements using vitality tester into the teeth with gum recession. Samples included 32 respondents with a single blind and pre-post test control group design. They were divided into treatment group and negative control group. Paired T-test and Wilcoxon were used as data analysis. Result: The results showed dental pain threshold score increasing either in treatment group and negative control, although not as significant as in the treatment group. Conclusion: 10% purple sweet potato extract gel containing potassium ions is able to reduce the pain of dentin hypersensitivity.

  12. Hydrogen Sulfide Promotes Root Organogenesis in Ipomoea batatas, Salix matsudana and Glycine max

    Institute of Scientific and Technical Information of China (English)

    Hua Zhang; Jun Tang; Xiao-Ping Liu; Yun Wang; Wei Yu; Wei-Yan Peng; Fang Fang; Dai-Fu Ma; Zhao-Jun Wei; Lan-Ying Hu

    2009-01-01

    In this report, we demonstrate that sodium hydrosulfide (NaHS), a hydrogen sulfide (H2S) donor, promoted adventitious root formation mediated by auxin and nitric oxide (NO). Application of the H2S donor to seedling cuttings of sweet potato (Ipomoea batatas L.) promoted the number and length of adventltious roots in a dose-dependent manner. It was also verified that H2S or HS- rather than other sulfur-containing components derived from NariS could be attributed to the stimulation of adventitious root formation. A rapid Increase In endogenous H2S, indole acetic acid (IAA) and NO were sequentially observed in shoot tips of sweet potato seedlings treated with HallS. Further investigation showed that HzS-mediated root formation was alleviated by N-l-naphthylphthalamic acid (NPA), an IAA transport inhibitor, and 2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide (cPTIO), an NO scavenger. Similar phenomena in H2S donor-dependent root organogenesis were observed in both excised willow (Sallx matsudana var. tortuosa Vilm) shoots and soybean (Glycine max L.) seedlings. These results indicated that the process of H2S-induced adventitious root formation was likely mediated by IAA and NO, and that H2S acts upstream of IAA and NO signal transduction pathways.

  13. Phytochemical screening, antioxidant, and antimicrobial activities of the crude leaves’ extract from Ipomoea batatas (L.) Lam

    Science.gov (United States)

    Pochapski, Márcia Thaís; Fosquiera, Eliana Cristina; Esmerino, Luís Antônio; dos Santos, Elizabete Brasil; Farago, Paulo Vitor; Santos, Fábio André; Groppo, Francisco Carlos

    2011-01-01

    Background: Ipomoea batatas (L.) Lam., popularly known as sweet potato (SP), has played an important role as an energy and a phytochemical source in human nutrition and animal feeding. Ethnopharmacological data show that SP leaves have been effectively used in herbal medicine to treat inflammatory and/or infectious oral diseases in Brazil. The aim of this research was to evaluate the phytochemical, antioxidant, and antimicrobial activities of the crude leaves’ extract of SP leaves. Materials and Methods: The screening was performed for triterpenes/steroids, alkaloids, anthraquinones, coumarins, flavonoids, saponins, tannins, and phenolic acids. The color intensity or the precipitate formation was used as analytical responses to these tests. The total antioxidant capacity was evaluated by the phosphomolybdenum complex method. Antimicrobial activity was made by agar disk and agar well diffusion tests. Results: The phytochemical screening showed positive results for triterpenes/steroids, alkaloids, anthraquinones, coumarins, flavonoids, saponins, tannins, and phenolic acids. Total contents of 345.65, 328.44, and 662.02 mg were respectively obtained for alkaloids, anthraquinones, and phenolic compounds in 100 g of the dry sample. The total antioxidant capacity was 42.94% as compared to ascorbic acid. For antimicrobial studies, no concentration of the SP freeze dried extract was able to inhibit the growth of Streptococcus mutans, S. mitis, Staphylococcus aureus, and Candida albicans in both agar disk and agar well diffusion tests. Conclusions: SP leaves demonstrated the presence of secondary metabolites with potential biological activities. No antimicrobial activity was observed. PMID:21716926

  14. Postharvest Quality and Physiological Behavior of Sweet Potato (Ipomoea batatas Lam.) Leaf Stalks Under Three Temperatures

    Institute of Scientific and Technical Information of China (English)

    PENG Yan; XU Yong-quan; DUAN Dao-fu; MAO Lin-chun

    2009-01-01

    Sweet potato (lpomoea batatas Lam.) leaf stalks were cut into 20 cm length, and stored at 20, 6, and 2℃. The respiration rate, ethylene production, ascorbic acid, free amino acid, total chlorophyll content, freshness, and shelf life were determined during storage to investigate the effect of storage temperatures on the quality and physiological responses in sweet potato leaf stalks. Wound responses were observed as high respiration rate and ethylene production immediately after cutting. Sweet potato leaf stalks were found to be sensitive to chilling injury manifested as browning and water-soaking on the surface at 2℃. In contrast, sweet potato leaf stalks were susceptible to senescence, exhibited by etiolating and yellowing, at 20℃. Loss in weight and chlorophyll was minimized under low temperatures. High temperatures also caused the accumulation of amino acids with a significant loss of ascorbic acid and chlorophyll. Sweet potato leaf stalks had a storage life of 16 days at 6℃, 8 days at 2℃, and 6 days at 20℃, respectively.

  15. Coronatine Induces an Accumulation of Anthocyanin and Starch in Purple-fleshed Sweetpotato (Ipomoea batatas Lam.)

    Institute of Scientific and Technical Information of China (English)

    Baoqing WANG; Beitao XIE; Haiyan ZHANG; Liming ZHANG; Qingmei WANG

    2013-01-01

    [Objective] The objective of this research was to examine the effects of COR on anthocyanin and starch content in storage roots of two PFS genotypes, and to explore the relationships between anthocyanin synthesis and starch accumula-tion. [Method] A field experiment was carried out to determine the changes in yield components, yield, contents of anthocyanin and starch, activities of phenylalanine ammonia-lyase (PAL) and adenosine 5-diphosphate glucose pyrophosphorylase (AG-Pase) in two genotypes of PFS (Ipomoea batatas L., var. ‘Ayamurasaki’ and‘Jishu18’). [Result] The application of COR significantly increased starch and antho-cyanin content in storage roots of Jishu18 across developmental stages by inducing the activities of PAL and AGPase, and final y enhanced yield by promoting fresh weight of storage roots. Ayamurasaki was insensitive to treatment with COR al-though its PAL activity temporal y increased. The starch and anthocyanin content of Aya, and the anthocyanin content of Jishu18 increased progressively across devel-opmental stages with or without COR application, but the starch content of Jishu18 increased initial y, then decreased before increasing again without application of COR. Treatment with COR reduced downward trend of starch accumulation in Jishu18. Thus, the effect of COR on accumulation of anthocyanin and starch in storage roots of PFS differs according to genotypes. [Conclusion] The application of 0.05 μmol/L COR may increase starch and anthocyanin content in PFS genotypes with lower starch and anthocyanin content in storage roots.

  16. Cryopreservation of sweetpotato (Ipomoea batatas) and its pathogen eradication by cryotherapy.

    Science.gov (United States)

    Feng, Chaohong; Yin, Zhenfang; Ma, Yanli; Zhang, Zhibo; Chen, Long; Wang, Biao; Li, Baiquan; Huang, Yushen; Wang, Qiaochun

    2011-01-01

    Sweetpotato (Ipomoea batatas) ranks as the seventh most important staple crop in the world and the fifth in developing countries after rice, wheat, maize and cassava. Sweetpotato is mainly grown in developing countries, which account for more than 95% of total production of the whole world. Genetic resources, including cultivated varieties and wild species, are a prerequisite for novel sweetpotato breeding in both conventional and genetic engineering programs. Various cryopreservation protocols have been developed for shoot tips and embryogenic tissues. The former explants are preferred for long-term conservation of sweetpotato genetic resources, while the latter are valuable for sweetpotato genetic improvement. This review provides update comprehensive information on cryopreservation of sweetpotato shoot tips and embryogenic tissues. Plant pathogens such as viruses and phytoplasma severely hamper high yield and high quality production of sweetpotato. Thus, usage of pathogen-free planting materials is pivotal for sustainable sweetpotato production. Cryotherapy of shoot tips can efficiently eradicate sweetpotato pathogens such as viruses and phytoplasma. The mechanism behind pathogen eradication by cryotherapy of shoot tips has been elucidated. Pathogen eradication by cryotherapy provides an alternative, efficient strategy for production of pathogen-free plants. In addition, cryopreserved tissues may also be considered to be safer for exchange of germplasm between countries and regions.

  17. Formulasi Krim Antioksidan Ekstrak Etanol Daun Ubi Jalar Ungu (Ipomoea batatas (L. Lamk Sebagai Anti Aging

    Directory of Open Access Journals (Sweden)

    Damaranie Dipahayu

    2014-12-01

    Full Text Available Purple sweet potatoes leaves (Ipomoea batatas (L. Lamk Antin 3 variety (IBLA are natural antioxidant sources because of its anthocyanins contents. IBLA was extracted with kinetic maseration method using 70% ethanolic solution. The aims of this research were determination of antioxidant activity of IBLA extract with DPPH (2,2-diphenyl-1-picrylhydrazil scavenging activity assay and formulation of IBLA extract into cream with oil in water (o/w base. Both the cream base and formulation were stored at 28oC for a period of 4 weeks to predict their stability. The evaluation parameters consisted of organoleptic, homogenity, pH value, viscosity, emulsion type, dispersive power, mechanic and freeze and thaw. Futhermore, the cream base and formulation were evaluated for their effects on skin moisture, curvature and pigmentation. The results showed that ethanolic extract of IBLA had antioxidant activity of 80.43 % compared to that of pure vitamin C. IC50 value of IBLA extract was 3.68 ppm while IC50 value of vitamin C was 2.96 ppm. The cream base and antioxidant cream had a physical stability for 4 weeks. The cream base and antioxidant cream had no effect on promoting skin moisture. The cream base had no effect in inhibiting curvature, but antioxidant cream was effective to inhibit curvature. The cream base showed no pigmentation inhibiting effect, but antioxidant cream was effective in inhibiting pigmentation.

  18. IPOMOEA BATATAS SYRUP DECREASE MALONDIALDEHYDE AND INCREASE NITROUS OXIDE PLASMA LEVELS AMONGST MODERATE SMOKER WORKERS AT DENPASAR

    Directory of Open Access Journals (Sweden)

    I Dewa Ayu Intan Dwi-Primayanti

    2012-09-01

    Full Text Available Objective: Cells and tissues are continuously damaged by reactive oxygen species. Cigarette smoke is one of an exogenous source of free radical containing more than 4000 chemical compounds, that triggering the formation of free radicals related to diseases and aging process. Anthocyanins are potent antioxidants that are widely distributed in fruit, vegetables, red wines and Ipomea batatas. The aim of this study was to determine the effect of Ipomea batatas as a source of antioxidants in decreasing levels of alondialdehyde (MDA and increasing of Nitrous oxide (nitrite/nitrate/NOxplasma in moderate smokers of workers at Denpasar.Method: This was an experimental study with a pretest-posttest control groups design. There are 33 moderate smokers who were divided into three groups, control group (placebo, treatment group with 15 ml purple sweet potato syrup (P1 and 30 ml (P2, for 14 days. All groups were performed the laboratory examinations for MDA and NOx plasma before and after the treatment.Results: This study showed that there were significant differences (p<0.05 both in MDA and NOx plasma levels in the control group, P1 and P2. The decrease of MDAlevels on P1 was 35.39% and on P2 was 49.87%. The increase of NOx plasma levels was 7.78% for P1 and 14.68% for P2.Conclusion: From this study, it can be concluded that Ipomea batatas syrup contains of 8mg/mL anthocyanins, probably play a role in reducing the free radical and thus reducingthe risk of disease and slowing the aging process.

  19. Chemical C-V Measurements on ZnO

    Science.gov (United States)

    Gabig, Sarah Jane; Farlow, Gary

    2008-10-01

    When metal/semiconductor schotky barriers are not practical, an electrolyte/semiconductor interface can be used to make capacitance-voltage (C-V) measurements. The physics of such electrochemical C-V measurements will be described. Electrical properties of ZnO were measured by electrochemical C-V techniques and photovoltage spectroscopy using an Accent 4400 Electrochemical CV system. Specifically, the electrical behavior of a 0.1 M ZnCl2 electrolyte-ZnO interface has been investigated with attention to the electrolyte-ZnO interface's C-V dependence on carrier frequency.

  20. Avaliação da resistência de clones e cultivares de batata à murcha bacteriana (Ralstonia solanacearum)

    OpenAIRE

    Lima Neto, Artur Ferreira

    2005-01-01

    Cultivares e clones de batata (Solanum tuberosum L.) foram avaliados de 2002 a 2004 na Embrapa Hortaliças, Brasília-DF, para resistência à murcha bacteriana em campo naturalmente infestado com a raça 1, biovar 1 de Ralstonia solanacearum. Os testes de avaliação foram conduzidos com as cultivares atualmente mais plantadas no Brasil e com conjuntos de clones relatados como resistentes no Brasil e em outras partes do mundo. Em todos os experimentos, a doença foi avaliada pela incidência de plant...

  1. Propriedades físicas de solo e crescimento de batata-doce em diferentes sistemas de preparo

    Directory of Open Access Journals (Sweden)

    Amarílis Beraldo Rós

    2013-02-01

    Full Text Available Trabalhos sobre preparo reduzido em solos cultivados com raízes e tubérculos são escassos e controversos. Assim, este trabalho teve por objetivo avaliar o impacto de sistemas de preparo em propriedades físicas de um Argissolo Vermelho-Amarelo e no crescimento de raízes tuberosas de batata-doce. Para avaliação das propriedades físicas do solo, foi instalado experimento em blocos ao acaso, esquema de parcelas subdivididas. As parcelas corresponderam aos tratamentos: preparo convencional, com confecção de leiras, e preparo reduzido, com manutenção de palhada superficial e as subparcelas, às épocas de coleta: 120 e 180 dias após o plantio (DAP da cultura de batata-doce. Foram avaliados os atributos físicos densidade do solo, porosidade total, macro e microporosidade, resistência do solo à penetração e umidade gravimétrica do solo. Para avaliação do crescimento de raízes tuberosas de batata-doce, montou-se experimento em que as parcelas corresponderam às formas de manejo do solo, e as subparcelas às quatro épocas de colheita: 90, 120, 150 e 180 DAP. Avaliaram-se as relações comprimento/diâmetro e massa fresca individual/comprimento de raízes tuberosas. O preparo convencional do solo com confecção de leiras, em oposição ao preparo reduzido, promoveu menores valores de densidade do solo, resistência do solo à penetração e microporosidade, maiores valores de porosidade total e macroporosidade; proporcionou menor manutenção de água na camada superior do solo (0-0,15 m; e permitiu maior crescimento vertical de raízes tuberosas de plantas de batata-doce.

  2. Evaluación de la dinámica del crecimiento in vitro en callos de Ipomoea batatas

    OpenAIRE

    Orlando S. González Paneque; Margarita Hernández Espinosa; Juan J Silva Pupo; Ángel Espinosa Reyes

    2011-01-01

    Evaluation of the dynamics of the growth in vitro callus of Ipomoea batatas ResumenEl cultivo del boniato presenta una gran importancia, ya que se puede emplear en la alimentación humana y animal, así como en la industria; el mismo produce raíces reservantes de gran valor calórico y nutritivo con alto contenido de carbohidratos. Entre las raíces y tubérculos cultivados es el segundo en importancia y representa más del 80% de la producción mundial. El empleo de las técnicas in vitro constituye...

  3. Learning openCV computer vision with the openCV library

    CERN Document Server

    Bradski, Gary

    2008-01-01

    Learning OpenCV puts you right in the middle of the rapidly expanding field of computer vision. Written by the creators of OpenCV, the widely used free open-source library, this book introduces you to computer vision and demonstrates how you can quickly build applications that enable computers to see" and make decisions based on the data. With this book, any developer or hobbyist can get up and running with the framework quickly, whether it's to build simple or sophisticated vision applications

  4. Crescimento, produtividade e coloração dos chips de tubérculos de batata produzidos sob alta disponibilidade de potássio Growth, yield and chip color of potato tubers grown under high potassium availability

    Directory of Open Access Journals (Sweden)

    Clarissa Melo Cogo

    2006-06-01

    Full Text Available O objetivo do trabalho foi quantificar o crescimento e a produtividade e avaliar a coloração de chips de tubérculos da cv. Asterix de batata produzidos sob alta disponibilidade de potássio. O experimento foi conduzido no Departamento de Fitotecnia da UFSM, RS, em abrigo telado de 200m², no período entre 28/08/2004 e 30/11/2004. Foram empregadas sacolas de polietileno contendo 1,4Kg de substrato orgânico (Plantmax®, com um tubérculo por sacola. Os teores disponíveis de nutrientes contidos no substrato foram de 95; 1.506; 7.831 e 2.948mg kg-1 de P, K, Ca e Mg, respectivamente. Os cinco tratamentos consistiram de doses suplementares de K fornecidas diariamente por fertirrigação, através de cinco soluções nutritivas contendo 3,5; 5,5; 6,5; 8,0 e 9,5mmol L-1 de K. As quantidades totais de k disponibilizadas em cada sacola através das soluções nutritivas ao longo do período experimental foram de 912,3; 1.433,7; 1.694,3; 2.085,3 e 2.476,3mg por planta, respectivamente.O crescimento da área foliar das plantas aumentou linearmente com a disponibilidade de K. Não foram observados efeitos significativos sobre o número, a massa seca e a produtividade de tubérculos e a qualidade dos chips. Níveis elevados de adubação potássica não exercem efeito depressivo na produtividade de tubérculos e na qualidade dos chips de batata.The objective was to verify the effect of high potassium availability on plant growth and tuber yield and chip color of potato, cv. Asterix. The experiment was conducted in a 200m² polyethylene greenhouse at the Departamento de Fitotecnia, UFSM, from August, 28 to November, 30, 2005. Polyethylene bags were filled with 4dm3 of organic substrate (Plantmax ® and one tuber was planted. The P, K, Ca and Mg availabilities were 95; 1,506; 7,831 and 2,948mg kg-1, respectively. Plants were daily fertigated with nutrient solutions containing supplementary K doses of 3.5; 5.5; 6.5; 8.0 and 9.5mmol L-1. Potassium available

  5. Efeitos da terra diatomácea sobre Diabrotica speciosa (Germar, 1824 (Coleoptera: Chrysomelidae em batata inglesa Effects of diatomaceous earth on Diabrotica speciosa (Germar, 1824 (Coleoptera: Chrysomelidae in potato

    Directory of Open Access Journals (Sweden)

    Franscinely Aparecida Assis

    2011-06-01

    Full Text Available A espécie Diabrotica speciosa é um crisomelídeo responsável por causar danos consideráveis à batateira, o que torna indispensável seu controle com inseticidas para minimizar os prejuízos causados à cultura. Assim, objetivou-se, com este trabalho, avaliar os efeitos da terra diatomácea sobre o comportamento alimentar e a mortalidade de D. speciosa em batata inglesa em condições de laboratório. Adotou-se o DIC com três tratamentos e oito repetições, sendo: 1 - testemunha; 2 - TD polvilhada (0,5 g/vaso e 3 - TD pulverizada a 1%. As batateiras, cv. Emeraude, foram polvilhadas ou pulverizadas com TD, 30 dias após o plantio e, 24 horas após a aplicação, as plantas foram fornecidas aos insetos, sem e com chance de escolha. Houve diferença significativa entre os tratamentos, sendo a menor porcentagem de folíolos com injúrias observada em plantas que receberam a aplicação de TD pulverizada (teste sem chance de escolha e TD polvilhada ou pulverizada (teste com chance de escolha. Também houve redução do número de injúrias foliares às 24 e às 48 horas (TD polvilhada ou pulverizada e, às 72 horas, a redução foi observada somente com a aplicação da TD polvilhada. Com relação à ação inseticida da TD, foi verificado seu efeito após 48 horas, tanto via polvilhamento, quanto via pulverização. Assim, a aplicação de TD pode auxiliar no manejo de D. speciosa, contribuindo para conferir proteção às plantas de batata inglesa e aumentar a mortalidade desse inseto-praga.The species D. speciosa is a chrysomelid responsible for causing considerable damage on potato plant, making its control with insecticides essential to minimize the damage caused to this culture. The objective of this study was to evaluate the effects of diatomaceous earth (DE on feeding behavior and mortality of D. speciosa in potato under laboratory conditions. A completely randomized design was used with three treatments and eight replicates being: 1

  6. 紫红薯膳食纤维漂白工艺研究%Studies on the Bleaching Technology of Purple Ipomoea batatas Dietary Fiber

    Institute of Scientific and Technical Information of China (English)

    吴少福; 蒋艳; 上官新晨; 沈勇根; 徐嘉琪; 罗娟

    2011-01-01

    为了得到色泽较浅的紫红薯膳食纤维,以样品的白度为指标,采用单因素和正交优化试验对H2O2漂白紫红薯膳食纤维的工艺进行研究.结果表明:将紫红薯膳食纤维用40 g/L H2O2溶液按1:15调成浆,pH值调整为10.0,在60 ℃的水浴中保温处理180 min,样品的白度值达到85.39%.%In order to obtain lighter -color purple lpomoea batatas dietary fiber, taking whiteness of the sample as an indicator, the bleaching technology of the purple lpomoea batatas dietary fibers was researched by H202 method. The optimum technologic parameters of the purple Ipomoea batatas IDF bleaching was obtained with single -factor and orthogonal experiment. The results showed that: 1:15 proportion of purple lpomoea batatas IDF to H2O2 solution, the concentration of hydrogen peroxide was 40 g/L, pH 10, temperature 60 ℃, time 180 min. Its brightness reached 85.39%.

  7. Quality improvement of sweet-potato (Ipomoea batatas L. Lam.) roots as feed by ensilage.

    Science.gov (United States)

    Lin, Y H; Huang, T C; Huang, C

    1988-07-01

    1. Sweet-potato (Ipomoea batatas L. Lam.) strips (SPS) mixed with maize powder (CP) in proportions 10:0, 9:1, 8:2, and 7:3 were ensiled for 1, 2 or 3 months. 2. Trypsin inhibitor activity (TIA) decreased during ensilage in samples of all treatments while the SPS-CP mixture (7:3, w/w) ensiled for 3 months contained the lowest TIA. 3. SPS-CP (8:2, w/w) dried or ensiled for 2 months, or ensiled for 2 months and dried, were each mixed with twice the amount of control diet (1:2, w/w) to make three diets. These three diets together with the control diet were used for a feeding experiment with rats to evaluate the nutritive value. 4. General composition analysis (including metabolizable energy), fatty acid composition and amino acid analysis (including percentage of essential amino acids) of the samples did not change during ensilage to an extent which could explain the improved performance of rats fed on ensiled diets. 5. Rats fed on diets containing dried SPS-CP (8:2, w/w) showed significantly lower (P less than 0.05) body-weight gain than rats fed on the control diet or ensiled SPS diets, at the end of the 8th week. They also showed enlargement of the pancreas. The adverse effect of SPS was associated with TIA which seemed to be prevented to some extent by ensilage. 6. The possibility that the starch of SPS may also contribute to the adverse effect cannot be excluded at present.

  8. Desenvolvimento de nanocompósitos à base de amido de batata

    Directory of Open Access Journals (Sweden)

    Luciana Macedo Brito

    2013-01-01

    Full Text Available Nanocompósitos de amido de batata foram preparados pelo método de intercalação por solução, com a adição de argilas montmorilonita: organicamente modificada (Viscogel B8 e não modificada argila sódica (NT25 e de sílicas: modificada (R972 e não modificada (A200. Os nanocompósitos foram caracterizados pelas técnicas convencionais de difratometria de raios X e análise termogravimétrica. Foram caracterizados também por uma técnica denominada como não convencional, a ressonância magnética nuclear (RMN de baixo campo, que é alternativa e efetiva na caracterização de nanocompósitos. Com ela, pode-se investigar a dispersão das nanocargas pelo grau de intercalação e/ou esfoliação, além de verificar a distribuição e modificações da mobilidade molecular da matriz polimérica. Os materiais nanoestruturados obtidos com as argilas apresentaram boa dispersão e formação de nanomateriais mistos, com diferentes graus de intercalação e esfoliação. Ao adicionar as sílicas na matriz de amido pode-se observar uma diminuição da mobilidade do material, este efeito foi observado para ambas às sílicas utilizadas. Utilizando a técnica de TGA verificou-se um ligeiro aumento na estabilidade térmica do material produzido em relação ao amido.

  9. Extract from Dioscorea batatas ameliorates insulin resistance in mice fed a high-fat diet.

    Science.gov (United States)

    Kim, Soyoung; Jwa, Hyejeong; Yanagawa, Yasuko; Park, Taesun

    2012-06-01

    The aim of this study was to investigate whether Dioscorea batatas (DB) extract attenuates high-fat diet (HFD)-induced insulin resistance in the visceral adipose tissues of mice, and by what mechanism(s). Mice were fed a HFD for 4 weeks to induce the early development of insulin resistance. The DB extract was administered to mice fed a HFD by oral gavage at a dose of 100 mg/kg body weight daily for 7 weeks. Biochemical parameters in blood were measured using enzymatic kits, and the expression levels of glucose transporter 4 (GLUT4), phosphorylated (p-)S6K1, phosphorylated v-akt murine thymoma viral oncogene homolog (p-AKT), and phosphorylated extracellular regulated kinase (p-ERK) in epididymal fat tissue were determined by western blot analyses. The DB extract effectively reversed the HFD-induced elevations in plasma glucose and insulin levels, and the homeostasis model assessment for insulin resistance and oral glucose tolerance test values. The level of p-AKT protein was up-regulated, whereas the levels of p-ERK and p-S6K1 proteins were down-regulated in the adipose tissues of DB mice compared with HFD mice. Furthermore, the DB extract significantly reversed the HFD-induced decrease in the plasma membrane GLUT4 level in the adipose tissue of mice. The DB extract improved glucose metabolism in HFD-fed mice through the up-regulation of plasma membrane GLUT4 content in the visceral adipose tissue. Activation of the insulin signaling cascade leading to GLUT4 translocation was the mechanism underlying the beneficial effects of the DB extract on early-stage obesity-induced insulin resistance.

  10. Analyses of the complete genome and gene expression of chloroplast of sweet potato [Ipomoea batata].

    Science.gov (United States)

    Yan, Lang; Lai, Xianjun; Li, Xuedan; Wei, Changhe; Tan, Xuemei; Zhang, Yizheng

    2015-01-01

    Sweet potato [Ipomoea batatas (L.) Lam] ranks among the top seven most important food crops cultivated worldwide and is hexaploid plant (2n=6x=90) in the Convolvulaceae family with a genome size between 2,200 to 3,000 Mb. The genomic resources for this crop are deficient due to its complicated genetic structure. Here, we report the complete nucleotide sequence of the chloroplast (cp) genome of sweet potato, which is a circular molecule of 161,303 bp in the typical quadripartite structure with large (LSC) and small (SSC) single-copy regions separated by a pair of inverted repeats (IRs). The chloroplast DNA contains a total of 145 genes, including 94 protein-encoding genes of which there are 72 single-copy and 11 double-copy genes. The organization and structure of the chloroplast genome (gene content and order, IR expansion/contraction, random repeating sequences, structural rearrangement) of sweet potato were compared with those of Ipomoea (L.) species and some basal important angiosperms, respectively. Some boundary gene-flow and gene gain-and-loss events were identified at intra- and inter-species levels. In addition, by comparing with the transcriptome sequences of sweet potato, the RNA editing events and differential expressions of the chloroplast functional-genes were detected. Moreover, phylogenetic analysis was conducted based on 77 protein-coding genes from 33 taxa and the result may contribute to a better understanding of the evolution progress of the genus Ipomoea (L.), including phylogenetic relationships, intraspecific differentiation and interspecific introgression.

  11. Identification of QTLs for Starch Content in Sweetpotato (Ipomoea batatas (L.) Lam.)

    Institute of Scientific and Technical Information of China (English)

    YU Xiao-xia; ZHAO Ning; LI Hui; JIE Qin; ZHAI Hong; HE Shao-zhen; LI Qiang; LIU Qing-chang

    2014-01-01

    Sweetpotato (Ipomoea batatas (L.) Lam.) breeding is challenging due to its genetic complexity. In the present study, interval mapping (IM) and multiple quantitative trait locus (QTL) model (MQM) analysis were used to identify QTLs for starch content with a mapping population consisting of 202 F1 individuals of a cross between Xushu 18, a cultivar susceptible to stem nematodes, with high yield and moderate starch, and Xu 781, which is resistant to stem nematodes, has low yield and high starch content. Six QTLs for starch content were mapped on six linkage groups of the Xu 781 map, explaining 9.1-38.8% of the variation. Especially, one of them,DMFN_4, accounted for 38.8% of starch content variation, which is the QTL that explains the highest phenotypic variation detected to date in sweetpotato. All of the six QTLs had a positive effect on the variation of the starch content, which indicated the inheritance derived from the parent Xu 781. Two QTLs for starch content were detected on two linkage groups of the Xushu 18 map, explaining 14.3 and 16.1% of the variation, respectively. They had a negative effect on the variation, indicating the inheritance derived from Xu 781. Seven of eight QTLs were co-localized with a single marker. This is the ifrst report on the development of QTLs co-localized with a single marker in sweetpotato. These QTLs and their co-localized markers may be used in marker-assisted breeding for the starch content of sweetpotato.

  12. Produção e teor de carboidratos não estruturais em tubérculos de batata obtidos em duas épocas de plantio Production and non-structural carbohydrates content in potato tubers obtained in two planting times

    Directory of Open Access Journals (Sweden)

    Lindamir H. Pastorini

    2003-12-01

    Full Text Available Tubérculos de batata cv. Atlantic e Pérola, obtidos do cultivo de outono (53; 68 e 100 dias após o plantio - DAP e primavera (70; 78 e 99 DAP foram levados ao laboratório e classificados quanto ao diâmetro (50mm, contados e determinada individualmente a massa fresca. Em seguida, coletaram-se amostras para análise dos teores de amido, carboidratos solúveis totais, açúcares redutores e sacarose. Durante o cultivo de outono, a cultivar Atlantic apresentou maior massa fresca dos tubérculos ao final do ciclo e a cv. Pérola apresentou maior número de tubérculos em todas as colheitas. No cultivo da primavera a cv. Pérola apresentou maior massa fresca média dos tubérculos, sendo que em ambas cultivares, observou-se redução da produtividade ao final do ciclo, talvez em resposta ao estresse hídrico verificado no período. Considerando o fator cultivar, observa-se que o teor de amido foi significativamente maior nos tubérculos da cv. Pérola aos 53 e 100 DAP do cultivo de outono, enquanto a cv. Atlantic apresentou valores significativamente maiores de carboidratos solúveis totais aos 53 DAP. Houve redução nos teores de açúcares redutores, em ambas cultivares, ao final do cultivo de outono, o que também foi verificado para os teores de sacarose. Os teores de amido e carboidratos solúveis totais reduziram, em ambas cultivares ao longo do ciclo de primavera, sendo que não houve diferença entre as cultivares em relação aos teores de açúcares redutores e sacarose ao final do cultivo de primavera.Potato tubers, cv. Atlantic and Pérola, harvested in autumn (53; 68 and 100 days after the planting - DAP and spring cultivation (70, 78 and 99 DAP were classified in relation to the diameter (50mm, counted and the fresh mass determined individually. Samples were collected and analyzed for the content of starch, total soluble carbohydrates, reducer sugars and sucrose. During autumn cultivation, the tubers of cv. Atlantic presented

  13. Hematological effects of Ipomoea batatas(camote) and Phyllanthus niruri(sampa-sampalukan) from Philippines in the ICR mice(Mus musculus)

    Institute of Scientific and Technical Information of China (English)

    Jessa; Fidel; Montejo; Juan; Arturo; Burgos; Mondonedo; Matthew; Genesis; Aguila; Lee; Michael; Bagui; Ples; Rodel; Jonathan; Santos; Vitor; Ⅱ

    2015-01-01

    Objective:To analyze the hematological effects of administering Ipomoea batatas(I.batatas)and Phyllanthus niruri(P.niruri) in the ICR mice.Methods:Powdered leaves of /.batatas and P.nintri were fed to mice for 4 weeks.A total of six groups were used to determine the effect of the plants to the complete blood count of the mouse.Group A(blank control) mice were feed with pellets only;Group B(negative control) mice were fed with pellets coated with honey;Group C(low dosage) mice were fed with honey-coated pellets and powdered leaves of 1.batatas at 10 g/kg body weight of the mouse;Group D(high dosage) mice were fed with honey-coated pellets and powdered leaves of I,batatas at 20 g/kg body weight of the mouse;Group E(low dosage) mice were fed with honey-coated pellets and powdered leaves of P.niruri at 10 g/kg body weight of the mouse:and Group F(high dosage) mice were fed with honey-coated pellets and powdered leaves of P.niruri at 20 g/kg body weight of the mouse.Complete blood count was performed on Days 0.14 and 28.Results:It was shown that I.batatas can increase the values of hematocrit and hemoglobin on both the low dose and high dose at Day 28 and red blood cells(RBC) on both Days 14 and28 of testing.On the other hand.P.niruri can increase RBC.hematocrit and hemoglobin on Day 28 with only the low dose.There were no significant differences with white blood cell,absolute granulocyte,lymphocyte and monocyte,and platelet counts observed for both plant samples.Conclusions:I.batatas and P.niruri have effects on the hematocrit,RBC and hemoglobin levels in mice.

  14. Retendering of ST-CV maintenance contract

    CERN Document Server

    Battistin, M

    2003-01-01

    During the next three years, the ST/CV group will be deeply involved in the installation works for the LHC project. During this period the need for maintenance activity will decrease. The minimum level will be reached during the “long shutdown” of the PS and SPS machines in 2005. The budget for the maintenance will decrease accordingly, thus the CV group had to review its maintenance strategy. The new contract, which started on January 1st 2003, has been defined to cope with these workload variations during the next years and to guarantee the minimum maintenance activity on the existing equipment. A lump-sum contract based on a win-win strategy has been discarded. The contractor no longer has to guarantee the performance of the CERN cooling and ventilation systems. A new price list strategy based on performance indicators and penalties has been chosen. The contractor now has to guarantee the performance of every maintenance operation demanded by CERN. This modification obliged the Operation section of the...

  15. Bureau d'études CV

    CERN Document Server

    Martel, C

    2005-01-01

    Le bureau d’études CV, au même titre que les autres bureaux d’études du CERN, est étroitement lié au déroulement du projet LHC. Dans ce contexte, l’adaptation devient une dimension essentielle pour assurer des prestations organisées et efficaces. En effet, la rentabilité, l’optimisation des ressources, la stratégie de sous-traitance, les contraintes imposées par la coordination générale LHC et la charge de travail diminuant vers la fin du projet, sont autant que facteurs qui influencent son organisation. L’analyse des expériences multiples et l’évaluation du risque organisationnel permettent de repositionner méthodiquement la structure face au changement, notamment pour l’horizon 2007. Le bureau d’études CV converge déjà vers une distribution « bimodale » : tandis que les tâches proches de la coordination restent confiées à un bureau interne réduit au strict minimum, une part grandissante des tâches est sous-traitée à des mandataires extérieurs.

  16. Chemical Constituents from the Tubers of Ipomoea batata%番薯块根化学成分研究

    Institute of Scientific and Technical Information of China (English)

    尹永芹; 沈志滨; 孔令义

    2012-01-01

    目的:研究番薯块根的化学成分.方法:95%乙醇提取回收溶剂后以氯仿萃取,萃取部位经多种层析方法分离;结合理化性质和波谱方法进行结构鉴定.结果:分离并鉴定了6个化合物,分别为:Batatinoside Ⅰ(1)、枸橼苦素(2)、咖啡酸十八烷酯(3)、乙酰-β-香树醇(4)、咖啡酸(5)、东莨菪素(6).结论:其中,化合物1为结构新颖的树脂糖苷类化合物,并首次从番薯中分离得到.%Objective: To investigate the chemical constituents from the tubers of Ipomoea batata. Methods: The chemical constituents were isolated and purified by solvent extraction together with various chromatographic techniques. The structures were elucidated on the basis of physiochemical property and spectral data. Results: 6 compounds were identified from the CHC13 extract as Batatinoside 1(1), citrusin C(2), octadecyl caffeate (3) , β-amyrin acetate (4) , caffeic acid (5) ,scopoletin (6). Conclusion; Compound 1 is I-solated from Ipomoea batata for the first time.

  17. Factors affecting "in vitro" plant development and root colonization of sweet potato by Glomus etunicatum Becker & Gerd Fatores que afetam o desenvolvimento da planta e a colonização radicular "in vitro", da batata doce por Glomus etunicatum Becker & Gerd.

    Directory of Open Access Journals (Sweden)

    Wellington Bressan

    2002-01-01

    Full Text Available Nutrients media (Murashige & Skoog, Hoagland & Arnon and White's media supplemented or not with sucrose and substrates (vermiculite, agar and natrosol were tested for their effects on plant development and root colonization of micropropagated sweet potato, cv. White Star, by Glomus etunicatum Becker & Gerdemann (isolate INVAM FL S329. Addition of sucrose (3% did not affect plant development. However, hyphal growth and root colonization were depressed. Contrasting responses to media nutrient concentration were observed for plant height, root colonization, and hyphal growth. The highest concentration of nutrients in Murashige & Skoog medium improved plant development, but this medium decreased hypha growth and inhibited root colonization. Plants growing in vermiculite substrate had higher (p£0.05 development and mycorrhizal root colonization than those growing in agar or natrosol. The results indicate that colonization of micropropagated sweet potato by arbuscular mycorrhizal fungi is affected by media composition and type of substrate.Os meios de Murashige e Skoog, Hoagland, Arnon e White, suplementados ou não com sacorose, e tendo como substratos vermiculita, ágar ou natrosol foram utilizados para avaliar seus efeitos sobre o desenvolvimento da batata doce, c.v. White Star, e sua colonização por Glomus etunicatum Becker & Gerd. (isolado INVAM FL S329. A adição de sacorose (3% ao meio não afetou o desenvolvimento da planta, porém reduziu o crescimento das hifas de G. etunicatum e a colonização das raízes. A concentração de nutrientes dos meios utilizados mostrou efeitos contrastantes entre altura da planta, crescimento das hifas e colonização das raízes por G. etunicatum. A alta concentração de nutrientes no meio Murashige e Skoog estimulou o crescimento das plantas, reduziu o desenvolvimento das hifas e inibiu a colonização das raízes pelo fungo micorrízico. Plantas desenvolvidas em vermiculita mostraram maior

  18. Dichotic listening CV lateralization and developmental dyslexia.

    Science.gov (United States)

    Martínez, J A; Sánchez, E

    1999-08-01

    The present study was carried out on a sample of 125 right-handed boys who are described as follows: 50 boys with dyslexia, 50 controls of a similar age, and 25 controls according to reading level. Using an objective procedure based on regression, we selected three subgroups from among the poor readers: children with difficulties in the lexical pathway (surface dyslexics), children with difficulties in the sublexical pathway (phonological dyslexics), and children with problems in both pathways (mixed dyslexics). When the performances of these children on a dichotic listening task with CV syllables as stimuli were compared, it was found that although the children with dyslexia obtained lower lateralization indices than did the controls, the differences were only clearly significant when the most severe cases of phonological dyslexia were selected.

  19. Influência da adição da fécula de batata-doce (Ipomoea batatas L. sobre a viscosidade do permeado de soro de queijo Influence of sweet potato starch at permeate whey viscosity

    Directory of Open Access Journals (Sweden)

    Rafael Leite Pinto de Andrade

    2002-12-01

    Full Text Available A viscosidade é um parâmetro importante na aceitabilidade de bebidas lácteas. O presente trabalho teve como objetivo principal fornecer dados relativos ao comportamento da viscosidade uma base de permeado de soro de queijo adicionada de fécula de batata-doce, dados que poderão ser utilizados na elaboração de uma nova bebida láctea. A fécula de batata-doce utilizada apresentou um grau de gelatinização de 72,64%, umidade média de 7,88% e a seguinte composição centesimal média em base seca: 82,59% de amido, 9,33% de fibras dietéticas totais, 4,90% de proteínas, 2,08% de cinzas e 1,11% de lipídios. O permeado de soro foi adicionado a três diferentes concentrações de fécula e submetido a diferentes tratamentos térmicos. A viscosidade mais adequada, em função dos dados obtidos junto aos produtos comerciais, estaria no intervalo de 45mPa.s a 70mPa.s. Assim sendo, a porcentagem de 6% de fécula de batata-doce e um tratamento térmico de 90ºC por cerca de 5 minutos mostrou-se ser o mais adequado. O fluido obtido apresentou um comportamento pseudoplástico.Viscosity is an important parameter of milky drinks acceptability. This work supply data of the viscosity properties of permeate whey plus sweet potato starch basis; these data will may be used at development of a new milky beverage. The used sweet potato starch presented 72.64% of gelatinization, 7.88% of humidity and the following dry composition: 82.59% starch, 9.33% total dietary fibres, 4.90% proteins, 2.08% ashes and 1.10% lipids. The permeate whey had mixed at three different percentages of potato starch and had submitted at various thermal treatments. The most appropriate viscosity, in accord of commercial products, it would be in the interval of 45mPa.s to 70mPa.s. Therefore, the percentage of 6% of sweet potato starch and a thermal treatment of 90ºC for about 5 minutes it was shown to be the most appropriate. The fluid presented a pseudoplastic properties.

  20. Characterization and development of EST-derived SSR markers in cultivated sweetpotato (Ipomoea batatas

    Directory of Open Access Journals (Sweden)

    Li Yujun

    2011-10-01

    Full Text Available Abstract Background Currently there exists a limited availability of genetic marker resources in sweetpotato (Ipomoea batatas, which is hindering genetic research in this species. It is necessary to develop more molecular markers for potential use in sweetpotato genetic research. With the newly developed next generation sequencing technology, large amount of transcribed sequences of sweetpotato have been generated and are available for identifying SSR markers by data mining. Results In this study, we investigated 181,615 ESTs for the identification and development of SSR markers. In total, 8,294 SSRs were identified from 7,163 SSR-containing unique ESTs. On an average, one SSR was found per 7.1 kb of EST sequence with tri-nucleotide motifs (42.9% being the most abundant followed by di- (41.2%, tetra- (9.2%, penta- (3.7% and hexa-nucleotide (3.1% repeat types. The top five motifs included AG/CT (26.9%, AAG/CTT (13.5%, AT/TA (10.6%, CCG/CGG (5.8% and AAT/ATT (4.5%. After removing possible duplicate of published EST-SSRs of sweetpotato, a total of non-repeat 7,958 SSR motifs were identified. Based on these SSR-containing sequences, 1,060 pairs of high-quality SSR primers were designed and used for validation of the amplification and assessment of the polymorphism between two parents of one mapping population (E Shu 3 Hao and Guang 2k-30 and eight accessions of cultivated sweetpotatoes. The results showed that 816 primer pairs could yield reproducible and strong amplification products, of which 195 (23.9% and 342 (41.9% primer pairs exhibited polymorphism between E Shu 3 Hao and Guang 2k-30 and among the 8 cultivated sweetpotatoes, respectively. Conclusion This study gives an insight into the frequency, type and distribution of sweetpotato EST-SSRs and demonstrates successful development of EST-SSR markers in cultivated sweetpotato. These EST-SSR markers could enrich the current resource of molecular markers for the sweetpotato community and would

  1. DESIDRATAÇÃO OSMÓTICA DE BATATA BAROA (Arracacia xanthorrhiza OSMOTIC DEHYDRATION OF PERUVIAN CARROT (Arracacia xanthorrhiza

    Directory of Open Access Journals (Sweden)

    Manoel Soares Soares Junior

    2007-09-01

    Full Text Available

    O presente trabalho teve como objetivo estudar as condições ótimas para desidratação osmótica de batata baroa (Arracacia xanthorrhiza, submetida, em seqüência, ao congelamento e fritura, e à avaliação sensorial. Os resultados mostraram uma desidratação máxima em torno de 18% da massa inicial, sob as seguintes condições: concentração de 4 g de cloreto de sódio e 45 g de sacarose por 100 mL de solução, trinta minutos de tempo de contato e temperatura de 50°C. A avaliação sensorial mostrou que a desidratação osmótica, seguida de congelamento e fritura, pode ser uma nova alternativa viável para o mercado consumidor de batata baroa.

    PALAVRAS-CHAVE: Desidratação osmótica; batata baroa; congelamento; análise sensorial.

    The aim of this research was to study the excellent conditions for the osmotic dehydration of Peruvian carrot (Arracacia xanthorrhiza, submitted in sequence to freezing, and frying, and sensorial analysis. The results showed maximum dehydration of about 18% of the initial mass, under the following conditions: a concentration of 45 g of sodium chloride and 45 g of sucrose for 100 ml of solution, thirty minutes of contact time, and a temperature of 50°C. The sensorial evaluation showed that osmotic dehydration of Peruvian carrot, before freezing and frying can be a new alternative for the consumer market.

    KEY-WORDS: Osmotic dehydration; Peruvian carrot; freezing; sensorial analysis.

  2. PEMANFAATAN UBI JALAR UNGU (Ipomoea batatas L. Poir SEBAGAI PENGGANTI SEBAGIAN TEPUNG TERIGU DAN SUMBER ANTIOKSIDAN PADA ROTI TAWAR [Purple Sweet Potato (Ipomoea batatas L. Poir as a Partial Subtitute of Wheat flour and Source of Antioxidant on Plain Bread

    Directory of Open Access Journals (Sweden)

    Hardoko*

    2010-06-01

    Full Text Available Purple sweet potato (Ipomoea batatas L. Poir is potential for functional food, especially as antioxidant source due to its purple color and other nutrient content. The objective of this research was to produce plain bread containing antioxidant by partial substitution of wheat flour with purple sweet potato flour. The result showed that the best plain bread was produced by a maximum substitution of 20% purple sweet potato flour to wheat flour. The hedonic characteristics of the resulting bread including aroma, taste, and texture were not significantly different from bread without substitution. Nevertheless, the crust was harder and darker. Addition of 1.0% GMS emulsifier and reduction of purple potato flour to 15% increased the score of softness, hedonic texture, acceptance level, as well as the volume of the bread. The substituted bread had antioxidant activity of 55833.78 ppm DPPH as shown by the IC50 value and contained 4.30% of dietary fiber.

  3. Produção da batata-doce adubada com esterco bovino e biofertilizante Yield of sweet potato (Ipomoea batatas (L. Lam. fertilized with cattle manure and biofertilizer

    Directory of Open Access Journals (Sweden)

    Ademar Pereira de Oliveira

    2007-12-01

    Full Text Available Objetivou-se avaliar a produção da batata-doce (Ipomoea batatas (L. Lam. adubada com esterco bovino e biofertilizante, conduziu-se um experimento no período de Janeiro a Junho de 2004, em NEOSSOLO REGOLÍTICO, psamítico típico, na Universidade Federal da Paraíba, em Areia-PB. O delineamento experimental empregado foi de blocos casualisados, com quatro repetições com os tratamentos distribuídos em arranjo fatorial 6 x 2, sendo seis doses de esterco bovino (0, 10, 20, 30, 40, 50 t ha-1 e ausência e presença de biofertilizante. As parcelas foram constituídas por 80 plantas, espaçadas de 80 x 30 cm. O número de raízes comerciais por planta atingiu valores máximos estimados de 2,0 e 1,7 raízes, respectivamente, nas doses de 26 e 25 t ha-1 de esterco bovino na presença e ausência de biofertilizante. O peso médio de raízes comerciais da batata-doce aumentou com elevação das doses de esterco bovino, atingindo na maior dose 360 e 224 g na presença e ausência de biofertilizante. As doses de 25,6 e 24,4 t ha-1 de esterco bovino foram responsáveis pela máxima produção total de raízes de 21,4 e 21,2 t ha-1, respectivamente, na presença e ausência de biofertilizante. As máximas produções de raízes comerciais, 15,2 e 12,9 t ha-1 foram alcançadas com 25,5 e 21,3 t ha-1 de esterco bovino, na presença e ausência de biofertilizante, respectivamente.Aiming to evaluate the sweet potato (Ipomoea batatas (L. Lam. yield fertilization with bovine manure and biofertilizer, an experiment was carried out from January to July, 2004, on ustipsamment soil, at Universidade Federal da Paraíba, Areia-PB. The Experimental outline used was randomized blocks, with four replications and, treatments distributed in factorial arrangement 6 x 2, being six levels of bovine manure (0, 10, 20, 30, 40, 50 t ha-1 and absence and presence of biofertilizer. Plots were constituted by 80 plants, spaced 80 x 30 cm. Commercial roots number per plant reached

  4. Protective effect of CV247 against cisplatin nephrotoxicity in rats.

    Science.gov (United States)

    Máthé, C; Szénási, G; Sebestény, A; Blázovics, A; Szentmihályi, K; Hamar, P; Albert, M

    2014-08-01

    CV247 (CV), an aqueous mixture of copper (Cu) and manganese (Mn) gluconates, vitamin C and sodium salicylate increased the antitumour effects of cisplatin (CDPP; cis-diamminedichloroplatinum) in vitro. We hypothesized that the antioxidant and cyclooxygenase-2 (COX-2; prostaglandin-endoperoxide synthase 2) inhibitory components of CV can protect the kidneys from CDPP nephrotoxicity in rats. CDPP (6.5 mg/kg, intraperitoneally) slightly elevated serum creatinine (Crea) and blood urea nitrogen (BUN) 12 days after treatment. Kidney histology demonstrated extensive tubular epithelial damage and COX-2 immunoreactivity increased 14 days after treatment. A large amount of platinum (Pt) accumulated in the kidney of CDPP-treated rats. Furthermore, CDPP decreased renal iron (Fe), molybdenum (Mo), zinc (Zn), Cu and Mn concentrations and increased plasma Fe and Cu concentrations. CDPP elevated plasma free radical concentration. Treatment with CV alone for 14 days (twice 3 ml/kg/day orally) did not influence these parameters. Chronic CV administration after CDPP reduced renal histological damage and slightly decreased COX-2 immunoreactivity, while failed to prevent the increase in Crea and BUN levels. Blood free radical concentration was reduced, that is, CV improved redox homeostasis. CV restored plasma Fe and renal Fe, Mo and Zn, while decreased Pt and elevated Cu and Mn concentrations in the kidney. Besides the known synergistic antitumour effects with CDPP, CV partially protected the kidneys from CDPP nephrotoxicity probably through its antioxidant effect.

  5. [Electroacupuncture at Guanyuan (CV 4) and Zhongwan (CV 12) modulates functional connectivity of the brain network in healthy volunteers].

    Science.gov (United States)

    Fang, Ji-liang; Hong, Yang; Wang, Xiao-ling; Liu, He-sheng; Wang, Yin; Liu, Jun; Wang, Lei; Xue, Chao; Zhou, Ke-hua; Song, Ming; Liu, Bao-yan; Zhu, Bing

    2011-10-01

    To observe the specific brain effects of electroacupuncture (EA) stimulation of Guanyuan (CV 4) and Zhongwan (CV 12). Twenty-one healthy volunteers were recruited in the present study. Two silver filiform needles were separately inserted into Guanyuan (OV 4) or Zhongwan (CV 12), and manipulated with uniform reducing-reinforcing method to induce "Deqi". fMRI scan was performed before needling, during needle retention, EA stimulation, and post-EA. Data of fMRI was analyzed by using software SPM 2. The volunteer subjective needling sensations were recorded. The activation, deactivation, short-distance and long-distance functional connectivity maps of different cerebral regions were analyzed by using whole brain correlation analysis. Comparison between the two acupoints showed that fullness feeling was stronger in CV 4 than in CV 12. EA at CV 4 and CV 12 induced a similar stronger and prevalent deactivation in the ventral medial prefrontal cortex and the anterior cingulated cortex (ACO). The deactivation of the ACC was stronger in the CV 4 group than in the CV 12 group. The default BOLD mode of the brain at rest was modified by needle retention and EA, respectively. The short-distance functional connection brain network was significantly changed after EA. Interestingly, the ventral medial prefrontal cortex and anteroinferior portion of the anterior cingulate cortex in the limbic-paralimbic-neocortical network (LPNN) were involved in the instant post-effects of EA. Relatively smaller differences in the brain functional activity and short-distance functional connectivity were found between these two acupoints. EA of CV 4 and CV 12 can modulate short-distance functional connectivity of the LPNN, and have fewer differences in inducing needling sensation and deactivation of ACC, etc.

  6. In vivo anti-fatigue activity of total flavonoids from sweetpotato [Ipomoea batatas (L.) Lam.] leaf in mice.

    Science.gov (United States)

    Li, Chunguang; Zhang, Lianying

    2013-08-01

    The in vivo anti-fatigue activity of the total flavonoids from sweet potato [Ipomoea batatas (L.) Lam.] leaf was investigated in male Kunming mice. The total flavonoids from sweet potato leaf (TFSL) were orally administered at doses of 50, 100 and 200 mg/kg for 4 weeks and the anti-fatigue effect was studied using a weight-loaded swimming test, along with the determination of serum urea nitrogen (SUN), blood lactic acid (BLA) and hepatic and muscle glycogen contents. The results showed that TFSL had significant anti-fatigue effects. TFSL extended the exhaustive swimming time, effectively inhibited the increase of BLA, decreased the level of SUN and increased the hepatic and muscle glycogen content of mice. Thus, TFSL may have potential as an anti-fatigue agent.

  7. Expressed nifH Genes of Endophytic Bacteria Detected in Field-Grown Sweet Potatoes (Ipomoea batatas L.).

    Science.gov (United States)

    Terakado-Tonooka, Junko; Ohwaki, Yoshinari; Yamakawa, Hiromoto; Tanaka, Fukuyo; Yoneyama, Tadakatsu; Fujihara, Shinsuke

    2008-01-01

    We examined the nitrogenase reductase (nifH) genes of endophytic diazotrophic bacteria expressed in field-grown sweet potatoes (Ipomoea batatas L.) by reverse transcription (RT)-PCR. Gene fragments corresponding to nifH were amplified from mRNA obtained from the stems and storage roots of field-grown sweet potatoes several months after planting. Sequence analysis revealed that these clones were homologous to the nifH sequences of Bradyrhizobium, Pelomonas, and Bacillus sp. in the DNA database. Investigation of the nifH genes amplified from the genomic DNA extracted from these sweet potatoes also showed high similarity to various α-proteobacteria including Bradyrhizobium, β-proteobacteria, and cyanobacteria. These results suggest that bradyrhizobia colonize and express nifH genes not only in the root nodules of leguminous plants but also in sweet potatoes as diazotrophic endophytes.

  8. Elaboración de sopa instantánea a partir de harina de ipomoea batatas(camote)

    OpenAIRE

    Albán, Carlos; Figueroa, Astrid; Cornejo, Fabiola

    2011-01-01

    Se elaboró una sopa instantánea a partir de la harina de camote, ya que además de ser rica en nutrientes se quiere es rescatar el consumo de productos autóctonos. Primero se realizó la caracterización de la materia prima (Ipomoea batatas), mediante ensayos físico-químico, después se elaboró la isoterma del camote, las curvas de secado y la caracterización de la harina de camote. Después de la obtención de la harina se realizó diferentes formulaciones con el objetivo de determinar la más adecu...

  9. Sistemas de labranza y densidades de la batata: calidad del suelo y de las raíces tuberosas.

    Directory of Open Access Journals (Sweden)

    Maiby Pérez-Darniz

    2016-12-01

    Full Text Available El objetivo de este trabajo fue determinar el efecto de sistemas de labranza y densidades de siembra en la calidad de las raíces tuberosas de batata (Ipomoea batata (L Lamb.. El estudio se realizó en la Universidad Central de Venezuela, en el año 2014. Se determinaron los grados de severidad de la degradación del suelo y su correspondencia con las escalas de preferencia basadas en el peso unitario y dimensiones de la raíz tuberosa. Se usó un arreglo en franjas, donde los sistemas de labranza (SL fueron asignados a las parcelas, y las densidades de siembra (Ds a las franjas. Los SL consistieron en labranza vertical con cincel (LC, con arado de disco (LA, convencional con tres pases de rastra de disco (LCo y mínima con un pase de rastra de disco (LM. Las Ds fueron de 0,25 cm (D1 y 0,15 cm (D2 en la hilera. La calidad física del suelo fue superior en los tratamientos de LA. De estos, la combinación con la distancia de siembra más larga (LA-D1 favoreció la mayor calidad postcosecha del cultivo. Al contrario, en los tratamientos con cincel se promovió la menor aceptación del consumidor. La ligera a moderada severidad de la degradación del suelo no explicó la variación de la calidad postcosecha. Se in ere sobre la menor tasa de movimiento de agua en LC, que promovió un exceso de humedad y la más baja calidad de la raíz tuberosa.

  10. Caracterização morfológica de acessos de batata-doce Morphologic characterization of sweet potato

    Directory of Open Access Journals (Sweden)

    Máskio Daros

    2002-03-01

    Full Text Available Objetivando caracterizar morfologicamente acessos de batata-doce da Coleção de Germoplasma da UENF e visando otimizar a utilização de genomas de interesse para o melhoramento, foram instalados dois experimentos, ambos em blocos ao acaso com três repetições. Os plantios foram realizados em novembro e em dezembro de 1997, ambos na cidade de Campos dos Goytacazes (RJ. Para tanto, quatorze acessos de batata-doce foram avaliados quanto a descritores da parte aérea e das raízes, num total de vinte características. Constatou-se a ocorrência de variabilidade genética entre os acessos, proporcionada principalmente pelas características pubescência do ápice das ramas, pigmentação das nervuras inferiores da folha e formato das raízes. Os acessos 'Amarelinha', 'Roxinha', 'WON-B' e 'Campina 3' apresentaram características de interesse para o mercado consumidor Norte- Fluminense.To characterize morphologically accesses of sweet potato from the germplasm collection of the Universidade Estadual do Norte Fluminense (UENF Brazil, as a way to optimize the utilization of important genomes for plant breeding, two experiments were carried out in field conditions, both in a randomized blocks design with three replications. The experiments were done in November at UENF and December in Campos. For such experiment, fourteen sweet potato accesses were evaluated for different traits related to aerial parts, and root descriptors, in a total of twenty characteristics. Genetic variability between accesses was observed, mainly due to characteristics of pubescence of the stem apex, pigmentation of the inferior veins of leaves and shape of roots. The accesses, Amarelinha, Roxinha, WON-B and Campina 3 presented interesting characteristics for the market of north-fluminense region.

  11. On the origin of sweet potato (Ipomoea batatas (L.) Lam.) genetic diversity in New Guinea, a secondary centre of diversity.

    Science.gov (United States)

    Roullier, C; Kambouo, R; Paofa, J; McKey, D; Lebot, V

    2013-06-01

    New Guinea is considered the most important secondary centre of diversity for sweet potato (Ipomoea batatas). We analysed nuclear and chloroplast genetic diversity of 417 New Guinea sweet potato landraces, representing agro-morphological diversity collected throughout the island, and compared this diversity with that in tropical America. The molecular data reveal moderate diversity across all accessions analysed, lower than that found in tropical America. Nuclear data confirm previous results, suggesting that New Guinea landraces are principally derived from the Northern neotropical genepool (Camote and Batata lines, from the Caribbean and Central America). However, chloroplast data suggest that South American clones (early Kumara line clones or, more probably, later reintroductions) were also introduced into New Guinea and then recombined with existing genotypes. The frequency distribution of pairwise distances between New Guinea landraces suggests that sexual reproduction, rather than somaclonal variation, has played a predominant role in the diversification of sweet potato. The frequent incorporation of plants issued from true seed by farmers, and the geographical and cultural barriers constraining crop diffusion in this topographically and linguistically heterogeneous island, has led to the accumulation of an impressive number of variants. As the diversification of sweet potato in New Guinea is primarily the result of farmers' management of the reproductive biology of their crop, we argue that on-farm conservation programmes that implement distribution of core samples (clones representing the useful diversity of the species) and promote on-farm selection of locally adapted variants may allow local communities to fashion relatively autonomous strategies for coping with ongoing global change.

  12. Identificación de virus en el cultivo de camote (Ipomoea batatas L. en Costa Rica

    Directory of Open Access Journals (Sweden)

    Rodrigo Valverde

    2004-01-01

    Full Text Available Identificación de virus en el cultivo de camote (Ipomoea batatas L. en Costa Rica. En el período entre febrero y mayo del 2002, se realizó un reconocimiento de los virus del cultivo de camote (Ipomoea batatas L., en cinco plantaciones comerciales ubicadas en las principales regiones productoras de este cultivo en Costa Rica. Previo al muestreo, en cada plantación se evaluó la incidencia de plantas con síntomas de enfermedades virales. Para la identificación de los virus, se recolectaron secciones apicales de tallo de plantas de camote con síntomas las cuales se injertaron sobre las plantas indicadoras de virus, de la especia Ipomoea setosa para inocularlas. Las muestras foliares de plantas inoculadas fueron analizadas serológicamente para el virus del moteado plumoso del camote (SPFMV y el virus del mosaico del pepino (CMV; con la reacción en cadena de polimerasa de transcripción reversa (RT-PCR para el virus del enanismo clorótico del camote (SPCSV y por hibridación molecular para el virus del enrollamiento de la hoja del camote (SPLCV. Las plantaciones ubicadas en el Cacao y el Coyol de Alajuela, y San Pedro de Santa Bárbara, presentaron las mayores incidencias de plantas con síntomas virales; a saber: 30, 90 y 90% respectivamente. El SPFMV, transmitido por los áfidos fue el virus más común. Otros virus detectados fueron el SPCSV y el SPLCV. El CMV, no se encontró en ninguna de las muestras analizadas.

  13. Facial Recognition using OpenCV

    Directory of Open Access Journals (Sweden)

    Valentin Petrut Suciu

    2012-03-01

    Full Text Available

    The growing interest in computer vision of the past decade. Fueled by the steady doubling rate of computing power every 13 months, face detection and recognition has transcended from an esoteric to a popular area of research in computer vision and one of the better and successful applications of image analysis and algorithm based understanding. Because of the intrinsic nature of the problem, computer vision is not only a computer science area of research, but also the object of neuro-scientific and psychological studies, mainly because of the general opinion that advances in computer image processing and understanding research will provide insights into how our brain work and vice versa.

    Because of general curiosity and interest in the matter, the author has proposed to create an application that would allow user access to a particular machine based on an in-depth analysis of a person’s facial features. This application will be developed using Intel’s open source computer vision project, OpenCV and Microsoft’s .NET framework.

  14. Facial Recognition using OpenCV

    Directory of Open Access Journals (Sweden)

    Shervin Emami

    2012-03-01

    Full Text Available The growing interest in computer vision of the past decade. Fueled by the steady doubling rate of computing power every 13 months, face detection and recognition has transcended from an esoteric to a popular area of research in computer vision and one of the better and successful applications of image analysis and algorithm based understanding. Because of the intrinsic nature of the problem, computer vision is not only a computer science area of research, but also the object of neuro-scientific and psychological studies, mainly because of the general opinion that advances in computer image processing and understanding research will provide insights into how our brain work and vice versa. Because of general curiosity and interest in the matter, the author has proposed to create an application that would allow user access to a particular machine based on an in-depth analysis of a person’s facial features. This application will be developed using Intel’s open source computer vision project, OpenCV and Microsoft’s .NET framework.

  15. Graphite whiskers in CV3 meteorites.

    Science.gov (United States)

    Fries, Marc; Steele, Andrew

    2008-04-04

    Graphite whiskers (GWs), an allotrope of carbon that has been proposed to occur in space, have been discovered in three CV-type carbonaceous chondrites via Raman imaging and electron microscopy. The GWs are associated with high-temperature calcium-aluminum inclusion (CAI) rims and interiors, with the rim of a dark inclusion, and within an inclusion inside an unusual chondrule that bears mineralogy and texture indicative of high-temperature processing. Current understanding of CAI formation places their condensation, and that of associated GWs, relatively close to the Sun and early in the condensation sequence of protoplanetary disk materials. If this is the case, then it is a possibility that GWs are expelled from any young solar system early in its history, thus populating interstellar space with diffuse GWs. Graphite whiskers have been postulated to play a role in the near-infrared (near-IR) dimming of type Ia supernovae, as well as in the thermalization of both the cosmic IR and microwave background and in galactic center dimming between 3 and 9 micrometers. Our observations, along with the further possibility that GWs could be manufactured during supernovae, suggest that GWs may have substantial effects in observational astronomy.

  16. Concentration of nutrient solution in the hydroponic production of potato minitubers Concentração da solução nutritiva na produção hidropônica de minitubérculos de batata

    Directory of Open Access Journals (Sweden)

    Manuel Benito Novella

    2008-09-01

    Full Text Available The effect of the nutrient solution concentration on potato plant growth and minituber yield were determined in a sand closed hydroponic system. Minitubers and micropropagated plantlets of the cv. 'Macaca' were used. Treatments were five nutrient solution concentrations at electrical conductivities (EC of 1.0 (T1, 2.2 (T2, 3.4 (T3, 4.7 (T4 and 5.8dS m-1 (T5. The split plot randomised experimental design was used with three replications. Plants from minitubers produced higher fresh and mean weight of minitubers, shoot dry mass and leaf area index than the micropropagated ones. However, higher dry mass of minitubers was found with micropropagated plantlets compared to minitubers. The concentration of the nutrient solution did not affect minituber number. Increasing the nutrient solution concentration decreased total and minituber dry mass production of micropropagated plantlets and plant growth and minituber production of minituber-originated plants. Low concentration of nutrient solution at an EC of about 1.0dS m-1 can be used in the hydroponic production of potato minitubers of both micropropagated and minituber-originated plants.Neste trabalho foi determinado o efeito da concentração da solução nutritiva no crescimento e na produtividade de minitubérculos de batata em um sistema hidropônico fechado empregando areia como substrato. Plântulas micropropagadas e minitubérculos foram plantados em 24 de março de 2004. Os tratamentos foram cinco soluções nutritivas com condutividades elétricas (CE de 1,0 (T1, 2,2 (T2, 3,4 (T3, 4,7 (T4 e 5,8dS m-1 (T5. O experimento foi conduzido em parcelas subdivididas no delineamento inteiramente casualizado com três repetições. Plantas originadas de minitubérculos produziram mais massa fresca total e média de minitubérculos, massa seca da parte aérea e maior índice de área foliar que plantas micropropagadas. Entretanto, maior massa seca dos minitubérculos foi obtida em plantas micropropagadas

  17. Obtención de Maltodextrinas por vía enzimática a partir del almidón de camote (Ipomoea batatas).

    OpenAIRE

    Medina García, Luis

    2013-01-01

    El objetivo del presente trabajo de investigación consistió en producir maltodextrinas por vía enzimática a partir del almidón del camote (Ipomoea batatas); materia prima que es ampliamente cultivada en varios estados de la República Mexicana. 5 Inicialmente se realizó el análisis químico proximal de los tubérculos del camote (Ipomoea batatas variedad nylon), después se llevó a cabo la extracción y caracterización del almidón y posteriormente se determinaron las condiciones de hidrólisi...

  18. Efeito da descompactação profunda de solo na produção da cultura da batata Effect of deep soil compaction alleviation on the production of potato crop

    Directory of Open Access Journals (Sweden)

    Carlos Francisco Ragassi

    2009-12-01

    Full Text Available O preparo de solo para batata no Brasil é geralmente realizado com o emprego de grade aradora (preparo raso, máquina cujo uso frequente estabelece uma zona compactada abaixo de 20 cm. Em tese, a descompactação profunda pode aumentar a produtividade e reduzir a incidência de doenças no tubérculo e esses efeitos podem variar com a espécie de gramínea cultivada anteriormente à cultura da batata. O objetivo do presente trabalho foi avaliar a descompactação profunda associada ao cultivo de Panicum maximum cv. Tanzânia, Brachiaria brizantha cv. Marandu e milho (Zea mays híbrido 'Dekalb 191' e, como testemunha, o preparo raso associado ao cultivo do mesmo híbrido de milho. O experimento foi conduzido em Piracicaba-SP, de dezembro de 2006 a outubro de 2008 no delineamento de blocos completos casualizados. A resistência à penetração no centro do canteiro, avaliada por meio de penetrômetro de impacto, foi inferior a 1,5 MPa até 40 cm de profundidade em todos os tratamentos e, na camada de 40 a 60 cm, esse valor no preparo raso (2,4 MPa foi significativamente superior aos dos demais tratamentos, cujos valores variaram de 0,9 a 1,0 MPa. A produtividade de tubérculos no preparo raso foi de 28,3 t ha-1 e diferiu estatisticamente do maior valor obtido com a descompactação profunda (32,9 t ha-1. A proporção de tubérculos com diâmetro inferior a 4 cm foi superior no preparo raso (5,1% em comparação ao preparo vertical com milho (2,9% e B. brizantha (2,2%. A ocorrência de pragas, doenças e lenticelose (Diabrotica speciosa, 31,0% a 49,7%; Streptomyces scabies, 3,3% a 6,3%; Helminthosporium solani, 60,3% a 69%; Rhizoctonia solani, 1,3% a 4,3%; lenticelose, 6,0% a 15,7%, não foi afetada pelos tratamentos. A descompactação profunda reduziu a resistência à penetração do solo e proporcionou maior produtividade com menor ocorrência de tubérculos pequenos, mas não influenciou a ocorrência de pragas, doenças e lenticelose

  19. Evaluación agronómica de diez clones promisorios CIP y dos materiales nativos de Ipomoea batatas L.

    Directory of Open Access Journals (Sweden)

    Tique José

    2009-08-01

    Full Text Available

    Con el propósito de rescatar la riqueza genética de la batata (Ipomoea batatas, durante dos ciclos de cultivo se realizaron evaluaciones agronómicas de dos materiales nativos, en comparación con diez clones provenientes del Centro Internacional de la Papa, clasificados allí como promisorios. El trabajo se llevó a cabo en el municipio de Coyaima, en el departamento del Tolima (Colombia, con la participación de los integrantes del Cabildo Indígena Autónomo Independiente Buenavista, y la colaboración del Consorcio Latinoamericano y del Caribe de Apoyo a la Investigación y el Desarrollo de la Yuca. Los materiales nativos se colectaron en parcelas de agricultores y se clasificaron como ‘Bonanza’ y ‘Sangretoro’, nombres tradicionales dados por los indígenas de la zona. El experimento fue desarrollado a través de un diseño de bloques completos al azar, con siete tratamientos y cuatro repeticiones. Los tratamientos correspondieron a los cinco clones CIP y las dos variedades regionales. Los resultados de la investigación permitieron cuantificar el alto potencial productivo de la batata como especie cultivada, encontrándose materiales muy promisorios que pueden ser incorporados a modelos agropecuarios de producción.

  20. Analysis on Nutrition Value of Different Batatas Vine%不同品种甘薯秧营养价值分析

    Institute of Scientific and Technical Information of China (English)

    张峰; 李魁英; 王学清; 王昆; 马书林; 张新同; 吴占军; 刘小虎

    2011-01-01

    对不同品种甘薯秧营养成分进行测定分析.结果表明,不同品种甘薯秧间营养成分含量有显著差异,粗蛋白含量最高是冀薯13-10,粗脂肪含量最高的是冀薯6-5,中性洗涤纤维和酸性洗涤纤维以冀薯4号最高,粗灰分最高冀薯13-10.%Studying on regularity about nutrient content of differencet batatas vine,The results show that there are significant difference between different batatas vine in crude protein,NDF,ADF,crude fat,AshJi Shu 13-10 has the hightest crude protein and crude AshJi Shu 6-5 has the highest crude fat,Ji Shu NO 4 has the highest NDF and ADF among other batatas vine.

  1. A practical introduction to computer vision with OpenCV

    CERN Document Server

    Dawson-Howe, Kenneth

    2014-01-01

    Explains the theory behind basic computer vision and provides a bridge from the theory to practical implementation using the industry standard OpenCV libraries Computer Vision is a rapidly expanding area and it is becoming progressively easier for developers to make use of this field due to the ready availability of high quality libraries (such as OpenCV 2).  This text is intended to facilitate the practical use of computer vision with the goal being to bridge the gap between the theory and the practical implementation of computer vision. The book will explain how to use the relevant OpenCV

  2. Reduced and unstratified crust in CV chondrite parent body.

    Science.gov (United States)

    Ganino, Clément; Libourel, Guy

    2017-08-15

    Early Solar System planetesimal thermal models predict the heating of the chondritic protolith and the preservation of a chondritic crust on differentiated parent bodies. Petrological and geochemical analyses of chondrites have suggested that secondary alteration phases formed at low temperatures (hydrothermal fluid. Putative 'onion shell' structures are not anymore a requirement for the CV parent body crust.Meteorites may unlock the history of the early solar system. Here, the authors find, through Ca-Fe-rich secondary phases, that the distinction between reduced and oxidized CV chondrites is invalid; therefore, CV3 chondrites are asteroid fragments that percolated heterogeneously via porous flow of hydrothermal fluid.

  3. 超声波提取紫薯多糖的工艺优化%Optimization of Ultrasonic Extraction Process of Ipomoea batatas ( Linn. ) Lam. Polysaccharide

    Institute of Scientific and Technical Information of China (English)

    姚惠伶; 蒋林彬

    2011-01-01

    [ Objective] To optimize the extraction conditions of polysaccharide from lpomoea batatas ( Linn. ) Lam. [ Method ] Polysaccharide from Ipomoea batatas ( Linn. ) Lam. was extracted by ultrasonic technology,and the extraction conditions were optimized by orthogonal test combined with single factor test. [ Result ] The influencing order of each factor on yield of polysaccharide was determined to be ultrasonic frequency > solid to liquid ratio > extraction temperature > extraction duration. The optimum conditions for extracting polysaccharide from Ipomoea batatas ( Linn. ) Lam. were: solid to liquid ratio of 1: 15, extraction duration of 40 min, extraction temperature of 60 ℃ and ultrasonic frequency of 80 kHz. Under the optimal extracting conditions,extraction rate of polysaccharide from Ipomoea batatas (Linn.) Lam. reached as high as 3.63%.[ Conclusion] Ipomoea batatas ( Linn. ) Lam. polysaccharide extracted by ultrasonic technology was high in yield and short in extraction time. If carried out at low temperature,the extraction was less in extracting solvent and less in cost.%[目的]优化紫薯多糖的提取工艺.[方法]利用超声波技术提取紫薯粗多糖,用单因素试验和正交试验设计相结合的方法获得最佳提取工艺.[结果]影响紫薯多糖得率的主要因素按重要性排序为:超声频率>料液比>提取温度>提取时间;紫薯粗多糖最佳提取工艺条件为:料液比1:15,提取时间40min,提取温度60℃,超声频率80 kHz,此条件下紫薯多糖的提取率为3.63%.[结论]利用超声技术提取紫薯多糖可以提高多糖得率、缩短提取时间、采用较低温度提取、节省提取溶剂,降低提取成本.

  4. Micropropagação de abacaxizeiro cv. Emepa 1 Micropropagation of pineapple, cv. Emepa 1

    Directory of Open Access Journals (Sweden)

    Ailton M. de Moraes

    2010-09-01

    Full Text Available Realizou-se esse trabalho com o objetivo de desenvolver um protocolo de micropropagação para o abacaxizeiro cv. Emepa 1, contemplando as fases de estabelecimento de explantes (EE, multiplicação (UM e enraizamento (EN. Como explantes se utilizaram gemas axilares, desinfestadas e inoculadas em meio MS sólido, contendo diferentes concentrações e combinações de 6-benzilaminopurina (BAP e de ácido naftalenoacético (ANA. Todas as culturas foram mantidas em sala de crescimento com temperatura de 25 ± 5 °C e fotoperíodo de 16 h luz, a uma intensidade luminosa de 30 µmol m-2 s-1. O delineamento experimental utilizado foi inteiramente casualizado, com seis tratamentos na fase EE, oito na fase MU e quatro na fase EN, dez repetições, sendo a unidade experimental constituída de um frasco contendo um broto. Concluiu-se que o estabelecimento de gemas axilares desta variedade de abacaxizeiro, pode ser realizado em meio de cultivo MS sem a adição de reguladores de crescimento; a multiplicação, em meio de cultura MS suplementado com 2,0 mg L-1 de BAP + 0,5 mg L-1 de ANA, enquanto a adição do ANA promove o enraizamento dos brotos.This work aimed to develop a micropropagation protocol of pineapple cv. Emepa 1. The cv. Emepa 1 axillary gems used were disinfested and inoculated in half MS solid with 5.8 pH. There was incubation in a growth room with temperature of 25 ± 5 °C and photoperiod of 16 h light at a luminous intensity of 30 mmol m-2 s-1. The cv. Emepa 1 micropropagation protocol was developed according to the existing literature, comprising the following phases: establishing of explants (EE; multiplication (MU; extent rooting (EN. A completely randomized design (CRD was used in all the phases as follows: EE - DIC with 6 treatments comprised of 10 repetitions containing 1 explants per bottle; MU - CRD with 8 treatments, comprised of 10 repetitions containing 1 explants per bottle. It was concluded that the concentration of 2% of

  5. Índices para avaliar o estado de nitrogênio da batata multiplicada por distintos materiais propagativos

    Directory of Open Access Journals (Sweden)

    Marialva Alvarenga Moreira

    2011-06-01

    Full Text Available Melhoria na eficiência de aplicação do N pode ser conseguida pela sincronização da demanda da planta com o suprimento de N durante o ciclo da batateira. O objetivo do trabalho foi determinar os valores ótimos de índices relacionados com o estado de nitrogênio ao longo do ciclo da batata cultivada em ambiente protegido, utilizando distintos materiais propagativos, tubérculo-semente, minitubérculo e broto, comuns na produção de tubérculo-semente básica. Os índices, determinados na quarta folha e na mais velha, foram intensidade da cor verde, avaliada pelo índice SPAD e pela tabela de cor, e características agronômicas: comprimento, largura, área e número de folíolos. Foram realizados três experimentos em vaso, em casa de vegetação na Universidade Federal de Viçosa. Em cada experimento, instalado no delineamento de blocos ao acaso, com quatro repetições, foram utilizadas seis doses de nitrogênio (0; 25; 50; 100; 200 e 400 mg dm-3. Os índices foram determinados a cada 10 dias iniciando-se aos 20 dias após a emergência. Com cada material de propagação, o índice SPAD medido tanto na QF quanto na FV respondeu de forma diferenciada ao incremento na dose de N e atingiu os valores ótimos de 41,3; 40,5; 37,0; 35,8; 36,0; 31,9 e 29,8 dos 20 aos 80 DAE, respectivamente, ao ser utilizado o tubérculo-semente básica. Com todos os materiais de propagação, a idade da planta influencia significativamente todas as variáveis, exceto o número de hastes ou o número de folhas, quando é utilizado broto ou minitubérculo, respectivamente. O valor ótimo dos índices relacionados com a intensidade da cor das folhas e das características agronômicas da planta foram estabelecidos e variam com o material de propagação e idade da planta de batata.

  6. Extração e exportação de nutrientes em cultivares de batata: I - macronutrientes

    Directory of Open Access Journals (Sweden)

    Adalton Mazetti Fernandes

    2011-12-01

    Full Text Available A determinação das quantidades de nutrientes absorvidas durante o ciclo de desenvolvimento é de suma importância para estabelecer as épocas em que esses elementos são mais exigidos e as quantidades corretas que devem ser disponibilizadas à cultura da batata. No entanto, quase não existem essas informações para as principais cultivares utilizadas no Brasil. O objetivo deste trabalho foi avaliar a extração e a exportação de macronutrientes pelas cultivares de batata Ágata, Asterix, Atlantic, Markies e Mondial. O experimento foi conduzido durante a safra de inverno, em um Latossolo Vermelho, no município de Itaí (SP. As parcelas foram constituídas pelas cinco cultivares, e as subparcelas, por épocas de coletas, realizadas no momento do plantio e a cada sete dias após a emergência. As cultivares Mondial e Asterix, mais produtivas, apresentaram maior extração de macronutrientes, com quantidades médias por hectare de 116 kg de N, 18 kg de P, 243 kg de K, 50 kg de Ca e 13 kg de Mg, enquanto as cultivares Ágata, Atlantic e Markies extraíram menor quantidade, com valores médios de 92, 14, 178, 35 e 9 kg ha-1, respectivamente. A maior demanda por macronutrientes pelas cultivares estudadas ocorreu na fase inicial de enchimento dos tubérculos (42 a 70 DAP. A exportação de macronutrientes não esteve diretamente relacionada com a produtividade de tubérculos, já que a cultivar mais produtiva (Mondial não foi a que exportou a maior quantidade de macronutrientes. A cultivar Asterix exportou maior quantidade de N, P, K e Mg, com valores de 88, 15, 220 e 8 kg ha-1, respectivamente, enquanto a menor exportação foi observada na cultivar Atlantic, com 48 kg ha-1 de N, 10 kg ha-1 de P, 143 kg ha-1 de K e 5 kg ha-1 de Mg. A variação entre as cultivares na extração, especialmente de K e N, indica necessidade de manejo diferencial da adubação.

  7. Seletividade de trifluralin incorporado ao solo para batata-doce Selectivity of soil incorporated trifluralin for sweet potato

    Directory of Open Access Journals (Sweden)

    Domingos Antonio Monteiro

    1993-01-01

    Full Text Available No Estado de São Paulo, a batata-doce é cultivada em escala comercial como produto hortigranjeiro. Em vista das dificuldades para o controle manual e o mecanizado das plantas infestantes da cultura, há grande interesse pelo método químico desse controle. Com essa finalidade, tanto pelo baixo custo relativo como pelas facilidades técnicas de utilização, o trifluralin desperta a atenção dos agricultores. Para avaliar a seletividade do herbicida para essa cultura, foi realizado um experimento em vasos, com doses crescentes do produto, nas seguintes concentrações: 0,00; 0,11; 0,22; 0,44; 0,88; 1,76 e 3,52 mg.kg-1 de i.a. em peso. Os resultados mostraram que, a partir da dose de 0,22 mg.kg-1 de i.a., o trifluralin interferiu negativamente e em escala exponencial sobre os parâmetros: comprimento das ramas, número de folhas, peso da massa seca da parte aérea e das raízes, avaliados aos 30 dias, revelando-se não seletivo para a batata-doce quando incorporado ao solo, em profundidades semelhantes às da zona de enraizamento das plantas.In the State of São Paulo, Brazil, sweet potato is nowadays a commercial vegetable crop. When labor is a limiting factor and the mechanical weed control is difficult, the chemical control is desirable. Trifluralin is an efficient herbicide for weed control in several crops. A green house experiment conducted at the Instituto Agronômico, Campinas, determined the selectivity of trifluralin in sweet potato. Increasing doses of trifluralin (0.00; 0.11; 0.22; 0.44; 0.88; 1.76 and 3.52 mg.kg-1 a.i. in weight were soil incorporated, uniformly. During thirty days, stem cuttings of sweet potatoes were grown in pots. The trial showed that no crop injury occurred by applying 0.11 mg.kg-1 a.i. An exponential injury has been observed at doses upper to 0.22 mg.kg-1 a.i. for the parameters analyzed: stem length, leaf number, dry weight of aerial parts and roots. Trifluralin incorporated in soil was a nonselective

  8. Method of determination of the leaf area of the potato cultivar Ágata from linear dimensionsMétodo de determinação da área foliar da cultivar de batata Ágata a partir de dimensões lineares

    Directory of Open Access Journals (Sweden)

    Sidnei Osmar Jadoski

    2012-12-01

    Agricultura, no Departamento de Agronomia da Universidade Estadual do Centro Oeste, em Guarapuava-PR. O objetivo foi avaliar a eficiência do ajuste de diferentes modelos matemáticos para determinação da área foliar de plantas de batata da cultivar Ágata. As avaliações foram realizadas considerando as dimensões de 100 folhas de diversos tamanhos, que foram coletadas aleatoriamentena fase de máximo desenvolvimento vegetativo das plantas. Os dados obtidos foram submetidos a analise de regressão, sendo testados seis diferentes modelos matemáticos: função linear, quadrática, cúbica, e os modelos exponenciais de crescimento, Gauss e Lorentz, utilizando o comprimento e a largura de folhas como variável independente para o ajuste em função da área foliar real medida em laboratório. A variável comprimento e o produto do comprimento x largura da folha foram as que apresentaram os melhores resultados de ajuste aos modelos testados. Com maior ênfase para o comprimento, para o qual todos os modelos testados apresentaram significância estatística. Concluiu-se que o comprimento da folha é o parâmetro mais adequado para ser utilizado em avaliações da área foliar de plantas de batata cv. Ágata, sendo a função exponencial de crescimento e Lorentz as menos recomendadas devido aos menores coeficientes de ajuste.

  9. Efeitos de dejeto de suínos na incidência de plantas daninhas e na eficiência do herbicida metribuzin na cultura da batata-doce Effects of liquid swine manure on weed incidence and on metribuzin efficiency in the sweet potato yield

    Directory of Open Access Journals (Sweden)

    Silvério P. Freitas

    1998-12-01

    Full Text Available O experimento foi realizado em condições de campo, na Fazenda Experimental da EPAMIG, em Ponte Nova-MG, no período de janeiro a julho de 1995, com o objetivo de avaliar o efeito de doses de dejeto de suínos na forma líquida, sobre a produção de batata-doce, cultivar Paulista, na incidência de plantas daninhas e na eficiência de controle de espécies de plantas daninhas pelo metribuzin. Utilizou-se o delineamento em blocos ao acaso, no esquema fatorial, com quatro repetições. Foram avaliados os efeitos das doses 0, 20, 40 e 60 m3 ha-1 de dejeto de suínos combinadas com 0, 300, 600 e 900 g ha-1 de metribuzin. Houve incremento linear de biomassa fresca das plantas daninhas de folhas largas, plantas de folhas estreitas e total de plantas daninhas em função do aumento das doses dejeto de suínos. O metribuzin foi seletivo para a cultura de batata-doce, não sendo observado nenhum sintoma visível de fitotoxicidade à cultura e eficiente no controle das principais plantas daninhas presentes na área. A produção máxima de raízes comerciais (22,94 t ha-1 foi obtida com o metribuzin na dose 810,17 g ha-1. Isto representou cerca de 89% superior ao peso obtido pela testemunha sem tratos culturais. Esta produtividade foi semelhante àquela observada nos tratamentos que receberam três cultivos. As plantas daninhas interferiram negativamente nas principais características avaliadas de produção da batata-doce. A cultura da batata-doce respondeu positivamente a adubação com dejeto líquido de suínos, com aumento linear da produção de raízes das classes extra A, comercial e total. Verificou-se também que houve correlação negativa entre plantas daninhas e as principais características de produção da cultura de batata-doce.This study was carried out under field conditions during the period from January to July 1995 at EPAMIG Experimental Farm, in Ponte Nova/MG, aiming to evaluate the effects liquid swine manure doses on the yield

  10. Relationship between Processing Method and the Glycemic Indices of Ten Sweet Potato (Ipomoea batatas Cultivars Commonly Consumed in Jamaica

    Directory of Open Access Journals (Sweden)

    Perceval S. Bahado-Singh

    2011-01-01

    Full Text Available This study investigated the effect of different traditional cooking methods on glycemic index (GI and glycemic response of ten Sweet potato (Ipomoea batatas cultivars commonly eaten in Jamaica. Matured tubers were cooked by roasting, baking, frying, or boiling then immediately consumed by the ten nondiabetic test subjects (5 males and 5 females; mean age of 27 ± 2 years. The GI varied between 41 ± 5–93 ± 5 for the tubers studied. Samples prepared by boiling had the lowest GI (41 ± 5–50 ± 3, while those processed by baking (82 ± 3–94 ± 3 and roasting (79 ± 4–93 ± 2 had the highest GI values. The study indicates that the glycemic index of Jamaican sweet potatoes varies significantly with the method of preparation and to a lesser extent on intravarietal differences. Consumption of boiled sweet potatoes could minimize postprandial blood glucose spikes and therefore, may prove to be more efficacious in the management of type 2 diabetes mellitus.

  11. Novel begomovirus species of recombinant nature in sweet potato (Ipomoea batatas) and Ipomoea indica: taxonomic and phylogenetic implications.

    Science.gov (United States)

    Lozano, Gloria; Trenado, Helena P; Valverde, Rodrigo A; Navas-Castillo, Jesús

    2009-10-01

    Viral diseases occur wherever sweet potato (Ipomoea batatas) is cultivated and because this crop is vegetatively propagated, accumulation and perpetuation of viruses can become a major constraint for production. Up to 90% reductions in yield have been reported in association with viral infections. About 20 officially accepted or tentative virus species have been found in sweet potato and other Ipomoea species. They include three species of begomoviruses (genus Begomovirus, family Geminiviridae) whose genomes have been fully sequenced. In this investigation, we conducted a search for begomoviruses infecting sweet potato and Ipomoea indica in Spain and characterized the complete genome of 15 isolates. In addition to sweet potato leaf curl virus (SPLCV) and Ipomoea yellowing vein virus, we identified three new begomovirus species and a novel strain of SPLCV. Our analysis also demonstrated that extensive recombination events have shaped the populations of Ipomoea-infecting begomoviruses in Spain. The increased complexity of the unique Ipomoea-infecting begomovirus group, highlighted by our results, open new horizons to understand the phylogeny and evolution of the family Geminiviridae.

  12. Antidiabetic Effects of Yam (Dioscorea batatas) and Its Active Constituent, Allantoin, in a Rat Model of Streptozotocin-Induced Diabetes.

    Science.gov (United States)

    Go, Hyeon-Kyu; Rahman, Md Mahbubur; Kim, Gi-Beum; Na, Chong-Sam; Song, Choon-Ho; Kim, Jin-Shang; Kim, Shang-Jin; Kang, Hyung-Sub

    2015-10-15

    The objective of this study was to investigate the therapeutic efficacies of crude yam (Dioscorea batatas) powder (PY), water extract of yam (EY), and allantoin (the active constituent of yam) in streptozotocin (STZ)-induced diabetic rats with respect to glucose, insulin, glucagon-like peptide-1 (GLP-1), C-peptide, glycated hemoglobin (HbAlc), lipid metabolism, and oxidative stress. For this purpose, 50 rats were divided into five groups: normal control (NC), diabetic control (STZ), and STZ plus treatment groups (STZ + PY, STZ + EY, and STZ + allantoin). After treatment for one-month, there was a decrease in blood glucose: 385 ± 7 in STZ, 231 ± 3 in STZ + PY, 214 ± 11 in STZ + EY, and 243 ± 6 mg/dL in STZ + allantoin, respectively. There were significant statistical differences (p yam and allantoin have antidiabetic effects by modulating antioxidant activities, lipid profiles and by promoting the release of GLP-1, thereby improving the function of β-cells maintaining normal insulin and glucose levels.

  13. Yam (Dioscorea batatas) Root and Bark Extracts Stimulate Osteoblast Mineralization by Increasing Ca and P Accumulation and Alkaline Phosphatase Activity.

    Science.gov (United States)

    Kim, Suji; Shin, Mee-Young; Son, Kun-Ho; Sohn, Ho-Yong; Lim, Jae-Hwan; Lee, Jong-Hwa; Kwun, In-Sook

    2014-09-01

    Yam (Dioscorea batatas) is widely consumed as functional food for health promotion mainly in East Asia countries. We assessed whether yam root (tuber) or bark (peel) extracts stimulated the activity of osteoblasts for osteogenesis. MC3T3-E1 cells (mouse osteoblasts) were treated with yam root extracts (water or methanol) (study I) or bark extracts (water or hexane) (study II) within 0~10 μg/mL during the periods of osteoblast proliferation (5~10 day), matrix maturation (11~15 day) and mineralization (16~20 day) as appropriate. In study I, both yam root water and methanol extracts increased cell proliferation as concentration-dependent manner. Cellular collagen synthesis and alkaline phosphatase (ALP) activity, both the indicators of bone matrix protein and inorganic phosphate production for calcification respectively, were also increased by yam root water and methanol extract. Osteoblast calcification as cell matrix Ca and P accumulation was also increased by the addition of yam root extracts. In study II, yam bark extracts (water and hexane) increased osteoblast proliferation and differentiation, as collagen synthesis and ALP activity and osteoblast matrix Ca and P deposition. The study results suggested that both yam root and bark extracts stimulate osteogenic function in osteoblasts by stimulating bone matrix maturation by increasing collagen synthesis, ALP activity, and matrix mineralization.

  14. Efeito do glutaraldeído na adsorção de extrato proteico da Ipomoea Batatas (L Lam na superficie de uma zeólita analcima Effect of the glutaraldeide on the adsorption of proteic extract of the Ipomoea Batatas (L Lam in analcime zeolite surface

    Directory of Open Access Journals (Sweden)

    A. C. S. Gondim

    2005-09-01

    Full Text Available A zeólita analcime (Na16Al16Si32O96.nH 2O foi submetida a ataque ácido com HCl 0,25 mol.L-1, seguido da funcionalização com glutaraldeído, foi imersa em extrato protéico obtido da polpa da batata-doce (Ipomoea Batatas (L Lam, que tem em sua composição a enzima polifenol oxidase (PFO. As amostras foram submetidas a procedimentos de caracterização por microscopia eletrônica de varredura, espectroscopia na região do infravermelho com transformada de Fourier e termogravimetria.The analcime zeolite (Na16Al16Si32O96.nH2O was treated with hydrochloric acid 0.25 mol.L-1, followed by the funcionalization with glutaraldehyde and immersed in the proteic extract obtained from gross extract of sweet potato pulp (Ipomoea Batatas (L Lam, which presents in its composition the polyphenol oxidase enzyme (PPO. Other samples were submitted to the same procedure with characterizations by scanning electron microscopy, Fourier Transform Infrared spectroscopy and thermogravimetry.

  15. Avaliação da eficácia de taboa (Typha domingensis Pers. e batata-de-purga [Operculina hamiltonii (G. Don D.F. Austin & Staples] in natura sobre nematóides gastrintestinais de caprinos, naturalmente infectados, em clima semi-árido Evaluation of the effectiveness of "taboa" (Typha domingensis Pers. and "batata-de-purga" [Operculina hamiltonii (G. Don D.F. Austin & Staples] in natura on gastrointestinal nematodes of goats, naturally infected, in the semi-arid region

    Directory of Open Access Journals (Sweden)

    C.F. Silva

    2010-12-01

    Full Text Available Avaliou-se a eficácia da Typha domingensis (taboa e da Operculina hamiltonii (batata-de-purga in natura sobre nematóides gastrintestinais de caprinos, naturalmente infectados, em clima semi-árido. Foram utilizados 30 caprinos da raça Moxotó, e o rizoma da taboa e a raiz da batata-de-purga, avaliados através da fitoquímica. As fezes foram coletadas nos dias zero, sete e 25, após, o tratamento da contagem de OPG. Os animais foram distribuídos inteiramente ao acaso, com cinco tratamentos e seis repetições. Grupo I tratado com Moxidectina 0,2% em dose única de 0,5 mg Kg-1; o Grupo II tratado com Taboa na dose (10 g 20 Kg-1 peso vivo; Grupo III com batata-de-purga na dose de 9 g 20 Kg-1 p.v.; Grupo IV tratado com taboa 10 g 20 Kg-1 p.v. associada a batata 9 g 20 Kg-1 p.v. durante três dias consecutivos, todos administrados oralmente e o Grupo V como grupo controle. Os grupos tratados apresentaram redução no número médio de OPG aos 7 e 25 dias pós-tratamento, quando comparado com o grupo controle no respectivo período, sendo a batata-de-purga com maior redução aos 7 e a taboa aos 25 dias. A maior eficácia foi da batata-de-purga de 84% e 70%, nos dias 7 e 25 pós-tratamento. Verificou-se que a batata-de-purga foi eficaz no controle de nematóides gastrintestinais de caprinos no clima semi-árido e que a taboa associada com a batata tem potencial para serem utilizadas em programas alternativos de controle parasitário.The effectiveness of Typha domingensis ("taboa" and Operculina hamiltonii ("batata-de-purga" in natura was evaluated on gastrointestinal nematodes of goats, naturally infected, in the semi-arid region. Thirty Moxotó goats were used, and the rhizome of "taboa" and the root of "batata-de-purga" were analyzed through phytochemistry. Feces were collected on days zero, seven and 25 after the treatment for FECs. The distribution of animals was completely at random, with five treatments and six replicates. Group I was

  16. Seleção de clones de batata para processamento industrial em condições de clima subtropical e temperado

    Directory of Open Access Journals (Sweden)

    Zilmar da Silva Souza

    2011-11-01

    Full Text Available O objetivo deste trabalho foi selecionar clones de batata para processamento industrial, cultivados em condições de clima subtropical e temperado do Sul do Brasil. Foram avaliados 30 clones avançados e três cultivares (testemunhas, na primavera de 2007 e 2008, e no outono de 2008, em Júlio de Castilhos, RS (condição de clima subtropical, e no verão de 2008 e 2009, em São Joaquim, SC (condição de clima temperado. Utilizou-se o delineamento experimental de blocos ao acaso, em arranjo fatorial (33 clones em 5 ambientes, com duas ou três repetições de dez covas. Foram avaliados: a produção por cova, a aparência, a cor de chips e os teores de matéria seca e de açúcares redutores dos tubérculos. Houve interação significativa entre clones e ambientes para todas as características avaliadas, exceto quanto à cor de chips. A produção por cova e o teor de matéria seca dos tubérculos foram maiores no cultivo de verão. As condições ambientais de cultivo afetaram todos os caracteres avaliados. As condições de cultivo do Sul do Brasil possibilitam a seleção de clones de batata, com suficiente teor de matéria seca, para atender às exigências da indústria de processamento de batata.

  17. HPLC Separation and Determination of Carotenoids in Ipomoea batatas%HPLC分离测定红心薯中类胡萝卜素

    Institute of Scientific and Technical Information of China (English)

    吉宏武; 施兆鹏

    2001-01-01

    The carotenoids from Ipomoea batatas were separated and determined by HPLC. Results show that the main carotenoids in Ipomoea batatas can be successfully separated in 10min with detection at 440nm by extracting the sample in hexane -acetone-ethanol-toluene and 40% potassium hydroxide methanol for twelve hours ,employing Nova-Pak C18 stainliss steel column (3.9×150 mm),using acetonitrile -chloroform-methyl carbinol (83∶15∶2)as flow phase, applying linear gradient eluting with the rate of flow, with the temperature of column at 25 ℃.Four kinds of main carotenoids from Ipomoea batatas were determined by external standards.%应用高效液相色谱法分离和测定红心薯中类胡萝卜素.样品制备采用已烷-丙酮-乙腈-甲苯混合溶剂与40%氢氧化钾甲醇溶液浸提、皂化的方法,使用Nova-Pak C18不锈钢柱,乙腈-三氯甲烷-叔丁醇作三元流动相,流量线性梯度洗脱等色谱条件,在440 nm波长下检测,红心薯中主要类胡萝卜素得到了较好的分离.以外标定量法对红心薯中的4种主要类胡萝卜素(β-胡萝卜素,叶黄质,堇黄质,新黄质)进行了定量,结果较为满意.

  18. Instant OpenCV for iOS

    CERN Document Server

    Kornyakov, Kirill

    2013-01-01

    Filled with practical, step-by-step instructions and clear explanations for the most important and useful tasks. This book uses a very practical approach, with each recipe and their associated sample projects or examples focusing on a particular aspect of the technology.This book is intended for OpenCV developers who are interested in porting their applications to the iOS platform. Basic experience with OpenCV, computer vision, Objective C, and other iOS tools is encouraged.

  19. Plot size variation to quantify yield of potato clones Variação do tamanho de parcela para acessar o rendimento de clones de batata

    Directory of Open Access Journals (Sweden)

    Dilson Antônio Bisognin

    2006-12-01

    Full Text Available The objective of this paper was to study plot size variation among potato clones to increase experimental precision of yield performance trials. The experiment was carried out at the experimental area of the Horticulture Dept., UFSM, Santa Maria, Rio Grande do Sul State, Brazil. Tubers of five potato clones were planted in two rows of 60 hills in August 2004. For all ten experimental rows, combined plots were formed adding a different number of adjacent hills of the same row. Soil heterogeneity index and optimum plot size were estimated for each row. Real differences between treatment means for each clone and all clones were estimated using the Hatheway technique. The experimental precision of potato yield trials varied with the evaluated clone because of different optimum plot sizes. Eight-hill plots are the optimum size to quantify yield of potato clones, but experimental precision depends upon adjustments of the number of treatments and replications to the availability of experimental area. Genetic diversity indeed decreases experimental precision and justifies the use of different plot sizes. Practical applicattions and strategies to increase experimental precision of yields performance trials of potato clones are discussed.O objetivo deste trabalho foi estudar a variação do tamanho de parcela entre clones de batata visando aumentar a precisão experimental nos ensaios de avaliação de rendimento. Tubérculos de cinco clones de batata foram plantados em duas fileiras de 60 covas na área experimental do Depto. de Fitotecnia-UFSM, em Santa Maria-RS, em agosto de 2004. Para cada uma das 10 fileiras do experimento foram planejadas parcelas de diferentes tamanhos, agrupando os resultados de covas adjacentes dentro da mesma fileira. Foram estimados o índice de heterogeneidade do solo e o tamanho ótimo da parcela. A diferença verdadeira entre médias de tratamentos, para cada clone e no geral foi estimada pelo método de Hatheway. A precis

  20. Freqüência de biovares de Ralstonia solanacearum em diferentes cultivares e épocas de cultivo de batata no Rio Grande do Sul

    OpenAIRE

    Maciel, Joao Leodato Nunes; Duarte, Valmir; Silveira,José Ricardo Pfeifer; Van der Sand, Sueli Terezinha

    2001-01-01

    A presença das biovares I e/ou II de Ralstonia solanacearum em uma lavoura de batatas (Solanum tuberosum) tem influência direta no sucesso das medidas adotadas para controlar a murcha bacteriana. As biovares diferem entre si em relação à agressividade, latência e sobrevivência. Assim, um experimento de campo foi conduzido em uma área naturalmente infestada em duas épocas de cultivo com os objetivos de verificar (1) a incidência de biovares I e/ou II, (2) a relação entre biovar e época de plan...

  1. Qualidade de tubérculos frescos de cultivares de batata em função da nutrição fosfatada

    Directory of Open Access Journals (Sweden)

    Adalton Mazetti Fernandes

    2015-03-01

    Full Text Available O fósforo (P é essencial para aumentar a produtividade e a qualidade nutricional dos tubérculos de batata. Porém não se sabe se a influência da adubação fosfatada na qualidade dos tubérculos produzidos pode variar em função da cultivar e da disponibilidade de P no solo. O objetivo deste trabalho foi avaliar o efeito da adubação fosfatada sobre a qualidade e composição nutricional dos tubérculos comercializáveis de cultivares de batata. Foram conduzidos experimentos em solos com baixa, média e alta disponibilidade de P, utilizando delineamento de blocos ao acaso, no esquema fatorial 2 × 5, com quatro repetições. Os tratamentos foram constituídos por duas cultivares de batata (Agata e Mondial e cinco doses de P2O5 (0, 125, 250, 500 e 1.000 kg ha–1. A adubação fosfatada aumentou o teor de P e de amido, o tamanho e a produtividade de tubérculos comercializáveis, com resposta mais expressiva às maiores doses nos solos com baixa e média disponibilidade de P. A cultivar Mondial foi mais produtiva, por apresentar maior massa média de tubérculos e maiores aumentos nessa característica em resposta a adubação fosfatada. A cultivar Mondial produziu tubérculos com polpa mais firme, com maior percentagem de matéria seca e com maiores teores de Ca, Cu e Zn do que a Agata. Em solo com baixo P disponível, a adubação fosfatada reduziu o teor de Zn mas, de maneira geral, teve pouca influência na composição nutricional dos tubérculos de batata.

  2. 西蒙1号番薯毛状根生物碱成分的研究%Alkaloids of the hairy roots of Ipomoea batatas Lam

    Institute of Scientific and Technical Information of China (English)

    袁珊琴; 赵毅民; 尤勇

    2004-01-01

    目的研究西蒙1号番薯Ipomoea batatas Lam毛状根中的生物碱成分.方法用硅胶柱色谱和薄层色谱方法进行分离纯化,根据光谱数据确定其结构.结果分离、鉴定了1个生物碱.结论该化合物为一新的吲哚类生物碱,命名为番薯碱甲(ipomine A).

  3. Processamento mínimo de tubérculos de batata de baixo valor comercial Minimal processing of potato tubers with low commercial value

    Directory of Open Access Journals (Sweden)

    Marlene T Lovatto

    2012-06-01

    Full Text Available Foram testados diferentes métodos para controlar o escurecimento de tubérculos de batata de baixo valor comercial para o mercado fresco e prolongar a vida de prateleira do produto minimamente processado. Uma mistura de tubérculos de duas cultivares de batata com diâmetro entre 30 e 45 mm, de baixo valor comercial para o mercado fresco, foram minimamente processados, submetidos a tratamentos à base de metabissulfito de sódio, ácido ascórbico e branqueamento, embalados e armazenados a 5ºC. Os tubérculos minimamente processados foram avaliados quanto ao pH, acidez titulável, teor de vitamina C, cor, aparência, textura, sabor e intenção de compra aos 0, 5, 10 e 15 dias de armazenamento. Os valores intermediários e aceitáveis para os atributos aparência, sabor e textura eram esperados e estão conformes com a matéria-prima utilizada. Tubérculos de batata de baixo valor comercial para o mercado fresco podem ser aproveitados para a elaboração de produtos minimamente processados, com boa aceitação até o quinto dia de armazenamento a 5ºC. A manutenção da vida de prateleira dos tubérculos minimamente processados de batata depende da aplicação do metabissulfito de sódio.Different methods of browning control were evaluated for potato tubers with low commercial value to the fresh market and to increase the shelf life period of the minimal processed product. A tuber blend of two potato cultivars, with diameters between 30 and 45 mm and low commercial value to the fresh market, was minimally processed. Tubers were immersed in the treatment solutions of sodium metabisulfite, ascorbic acid and bleaching. Treated tubers were packaged and stored at 5ºC for evaluations. The evaluations were pH, titratable acidity, vitamin C, color, appearance, texture, taste and purchase intention at 0, 5, 10, and 15 days of storage. The results of appearance, flavor and texture varied from acceptable to intermediate values and they were in agreement

  4. The early-type close binary CV Velorum revisited

    NARCIS (Netherlands)

    Yakut, K.; Aerts, C.; Morel, T.

    2007-01-01

    Aims.Our goal was to improve the fundamental parameters of the massive close double-lined eclipsing B2.5V+B2.5V binary CV Velorum. Methods: We gathered new high-resolution échelle spectroscopy on 13 almost consecutive nights covering two orbits. We computed a simultaneous solution to all the availab

  5. Anthelmintic Activity of Musa paradisiaca (L. cv. Puttabale

    Directory of Open Access Journals (Sweden)

    Venkatesh, V. Krishna

    2013-04-01

    Full Text Available Musa paradisiaca cv. Puttabale (AB group is an indigenous banana cultivar commonly cultivated in the Malnad region of Karnataka, India. Helminthes infections are acute and chronic illness in human beings and cattle. About 3 million people are infected with helminthes worldwide. Traditionally, the plant M. paradisiaca cv. Puttabale was used to expel parasitic worms. In order to justify the ethanomedicinal claim with scientific report, sincere attempts have been made to investigate the Anthelmintic activity from corm ethanol extracts of M. paradisiaca cv. Puttabale using Pheretima posthuma as an experimental model. Three concentrations of 25, 50 and 100 mg/ml of corm ethanol extract were used to study their effect in time of paralysis and death of worm. The results suggest that the ethanol extract at the concentration of 100 mg/ml showed significant effect in time of paralysis at 42.33±1.45 min and death time was 54.00±0.58 min than control group in time of paralysis (142.67±1.45 min and death (168.00±1.53 min. Standard drug piperazine citrate showed paralysis on 39.67±0.88 min and death at 59.00±0.58 min. The corm ethanol extract confirmed antihelmintic activity in dose depend manure and efficient, than standard drug piperazine citrate. This investigation revealed that the antihelmintic property of ethanol extracts of Musa paradisiaca cv. Puttabale against Pheretima posthuma to support its medicinal claims.

  6. Variação vertical da temperatura do ar no dossel de plantas de batata Vertical variation of the air temperature in the potato canopy

    Directory of Open Access Journals (Sweden)

    Ivonete F. Tazzo

    2008-10-01

    Full Text Available A temperatura do ar é um dos elementos meteorológicos mais importantes no condicionamento da infecção causada por patógenos, ante o que se propôs, com este trabalho, determinar a variação vertical da temperatura do ar no dossel de plantas de batata, cultivar Macaca; para tal, dois experimentos foram realizados, um na primavera, de 15/10 a 05/12/2003, em uma propriedade rural no município de Silveira Martins, RS, e o segundo no outono, de 27/03 a 08/06/2004, no Departamento de Fitotecnia da Universidade Federal de Santa Maria, RS. Foram instaladas uma torre com cinco níveis de medições psicrométricas contínuas e três repetições de psicrômetros, a meia altura das plantas e a 1,0 m de altura. Cada par psicrométrico constou de dois termômetros de resistência elétrica de platina (PT - 100, acomodados no interior de um mini-abrigo. Todos os sensores foram ligados a uma datalogger. As diferenças médias de temperatura entre 2,2 e 0,15 m de altura (T2,2 - T0,15 em 2003, foram de -1,72 oC no período diurno (das 11 às 17 h e de +0,82 oC no período noturno (das 21 às 4 h. Em 2004 as diferenças médias de temperatura entre os níveis extremos de 2,0 e 0,10 m (T2,0 - T0,10 foram de -1,12 oC no período diurno e de -0,62 oC no período noturno. A temperatura média diuna é maior nos níveis inferiores do dossel, sendo os gradientes de temperatura do ar mais acentuados durante o período diurno do que durante a noite.Air temperature is one of the most important meteorological elements in the conditioning of infection caused by pathogens. The objective of this study was to determine the variation of air temperature in the canopy of potato plants, cv. Macaca. Two experiments were carried out, one in the spring in a rural farm in the county of Silveira Martins, RS, from October 15 to December 5, 2003, and the second in the autumn in the experimental area of the Crop Production Department of Universidade Federal de Santa Maria, RS

  7. Influence of diesel contamination in soil on growth and dry matter partitioning of Lactuca sativa and Ipomoea batatas.

    Science.gov (United States)

    Fatokun, Kayode; Zharare, Godfrey Elijah

    2015-09-01

    Phytotoxic effect of diesel contaminated soil was investigated on growth and dry matter partitioning in Lactuca sativa and Ipomoea batatas in greenhouse pot experiment at two concentration range (0-30 ml and 0-6 ml diesel kg(-1) soil) for 14 weeks. The results indicated thatwhole plant biomass, stem length, root length, number of leaves and leaf chlorophyll in two plants were negatively correlated with increasing diesel concentrations. The critical concentration of diesel associated with 10% decrease in plant growth was 0.33 ml for lettuce and 1.50 ml for sweet potato. Thus, growth of lettuce in diesel contaminated soil was more sensitive than sweet potato. The pattern of dry matter partitioning between root and shoot in both plants were similar. In 0-6 ml diesel contamination range, allocation of dry matter to shoot system was favoured resulting in high shoot: root ratio of 4.54 and 12.91 for lettuce and sweet potato respectively. However, in 0-30 ml diesel contamination range, allocation of dry matter to root was favoured, which may have been an adaptive mechanism in which the root system was used for storage in addition to increasing the capacity for foraging for mineral nutrients and water. Although lettuce accumulated more metals in its tissue than sweet potato, the tissue mineral nutrients in both species did not vary to great extent. The critical diesel concentration for toxicity suggested that the cause of mortality and poor growth of sweet potato and lettuce grown in diesel contaminated soil was due to presence of hydrocarbons in diesel.

  8. Improved tolerance to various abiotic stresses in transgenic sweet potato (Ipomoea batatas expressing spinach betaine aldehyde dehydrogenase.

    Directory of Open Access Journals (Sweden)

    Weijuan Fan

    Full Text Available Abiotic stresses are critical delimiters for the increased productivity and cultivation expansion of sweet potato (Ipomoea batatas, a root crop with worldwide importance. The increased production of glycine betaine (GB improves plant tolerance to various abiotic stresses without strong phenotypic changes, providing a feasible approach to improve stable yield production under unfavorable conditions. The gene encoding betaine aldehyde dehydrogenase (BADH is involved in the biosynthesis of GB in plants, and the accumulation of GB by the heterologous overexpression of BADH improves abiotic stress tolerance in plants. This study is to improve sweet potato, a GB accumulator, resistant to multiple abiotic stresses by promoted GB biosynthesis. A chloroplastic BADH gene from Spinacia oleracea (SoBADH was introduced into the sweet potato cultivar Sushu-2 via Agrobacterium-mediated transformation. The overexpression of SoBADH in the transgenic sweet potato improved tolerance to various abiotic stresses, including salt, oxidative stress, and low temperature. The increased BADH activity and GB accumulation in the transgenic plant lines under normal and multiple environmental stresses resulted in increased protection against cell damage through the maintenance of cell membrane integrity, stronger photosynthetic activity, reduced reactive oxygen species (ROS production, and induction or activation of ROS scavenging by the increased activity of free radical-scavenging enzymes. The increased proline accumulation and systemic upregulation of many ROS-scavenging genes in stress-treated transgenic plants also indicated that GB accumulation might stimulate the ROS-scavenging system and proline biosynthesis via an integrative mechanism. This study demonstrates that the enhancement of GB biosynthesis in sweet potato is an effective and feasible approach to improve its tolerance to multiple abiotic stresses without causing phenotypic defects. This strategy for trait

  9. Digital gene expression analysis based on integrated de novo transcriptome assembly of sweet potato [Ipomoea batatas (L. Lam].

    Directory of Open Access Journals (Sweden)

    Xiang Tao

    Full Text Available BACKGROUND: Sweet potato (Ipomoea batatas L. [Lam.] ranks among the top six most important food crops in the world. It is widely grown throughout the world with high and stable yield, strong adaptability, rich nutrient content, and multiple uses. However, little is known about the molecular biology of this important non-model organism due to lack of genomic resources. Hence, studies based on high-throughput sequencing technologies are needed to get a comprehensive and integrated genomic resource and better understanding of gene expression patterns in different tissues and at various developmental stages. METHODOLOGY/PRINCIPAL FINDINGS: Illumina paired-end (PE RNA-Sequencing was performed, and generated 48.7 million of 75 bp PE reads. These reads were de novo assembled into 128,052 transcripts (≥ 100 bp, which correspond to 41.1 million base pairs, by using a combined assembly strategy. Transcripts were annotated by Blast2GO and 51,763 transcripts got BLASTX hits, in which 39,677 transcripts have GO terms and 14,117 have ECs that are associated with 147 KEGG pathways. Furthermore, transcriptome differences of seven tissues were analyzed by using Illumina digital gene expression (DGE tag profiling and numerous differentially and specifically expressed transcripts were identified. Moreover, the expression characteristics of genes involved in viral genomes, starch metabolism and potential stress tolerance and insect resistance were also identified. CONCLUSIONS/SIGNIFICANCE: The combined de novo transcriptome assembly strategy can be applied to other organisms whose reference genomes are not available. The data provided here represent the most comprehensive and integrated genomic resources for cloning and identifying genes of interest in sweet potato. Characterization of sweet potato transcriptome provides an effective tool for better understanding the molecular mechanisms of cellular processes including development of leaves and storage roots

  10. Browning Characteristics of Dioscorea batatas Decne%铁棍山药褐变特性研究

    Institute of Scientific and Technical Information of China (English)

    赵喜亭; 王会珍; 赵月丽; 宋萍萍; 李明军

    2009-01-01

    Browning characteristic of Dioscorea batatas Decne was studied, including the relationship between the distribution of phenols and browning, between the degree of browning and the activities of polyphenol oxidase(PPO),peroxidase(POD),and phenylalanine ammonialyase(PAL),and the effect of pH and tempreture on non-enzymatic browning.The phenols distribution mainly locates near periderm area and midribs in yam tuber, where the most serious browning is present.The relationship between the activities of PPO,POD,PAL and the browning degree shows positive correlation, and the correlation degree ranks:PPO>POD>PAL.Acidic condition is propitious to inhibiting non-enzymatic browning. Under the lower or higher temperature than 40℃,non-enzymatic browning all decreases.%研究了铁棍山药的褐变特性,包括酚类物质的分布与褐变的关系,多酚氧化酶(PPO)、过氧化物酶(POD)、苯丙氨酸解氨酶(PAL)的活性变化与褐变度的关系及pH和温度对其非酶褐变的影响.结果表明:酚类物质的分布情况与褐变发生部位相一致;PPO、POD和PAL的活性与褐变度呈正相关,其相关性依次为PPO>POD>PAL;酸性条件有利于抑制非酶褐变,低于或高于40℃,非酶褐变均有降低的趋势.

  11. Application of IBA in environmental remediation using skins of cocoa (Theobroma cacao) and sweet potatoes (Ipomoea batatas)

    Energy Technology Data Exchange (ETDEWEB)

    Sumbu, K. [Department of Chemistry, Cape Peninsula University of Technology, PO Box 1906, Bellville, 7535 (South Africa); Mars, J.A.; Gihwala, D. [Department of Biomedical Sciences, Cape Peninsula University of Technology, PO Box 1906, Bellville, 7535 (South Africa)

    2013-07-01

    Full text: The industrial sector is one of the most dynamic sectors of the economy and is of cardinal importance in economic development and poverty alleviation. Furthermore, economies with low levels of industrialisation are gradually shifting dependence from agriculture to the industrial sector, while developed economies, with a high level of industrialisation, are shifting from the industrial to the service sector [1]. Amongst the various industrial sectors, a substantial portion of effluents containing heavy metals are generated by electroplating (nickel, lead, zinc and copper), tanneries (chrome) and other chemical industries. Many engineering processes have been designed to remove the heavy metals from the polluted parts of the ecosystem. These processes are however highly capital intensive. To establish a less costly means of removal of heavy metal pollution, the dried skins of cocoa (Theobroma cacao) and sweet potato (Ipomoea batatas) were pulverized and used in the absorption of the heavy metals Ni and Pb. After adsorption by the metals, the powders were dried and then pressed into tablets. For quantification of the elemental adsorption, PIXE, using the Geo PIXE computational software, is a versatile multi-element analytical technique, and has minimum detection limits down to concentration ranges as low as 0.1 parts per million [2,3]. To determine the composition of the major elements such as C, O and N, Backscattering Spectrometry, using SimNRA software, [4] was used. In this study we report on the economic viability of using the skins of cocoa and sweet potato in the removal of Ni and Pd from polluted waters. (author)

  12. Uso de fertilizante e tempo de permanência de mudas de batata-doce produzidas em bandejas

    Directory of Open Access Journals (Sweden)

    Amarílis Beraldo Rós

    2011-08-01

    Full Text Available O objetivo deste trabalho foi avaliar a produção de mudas de batata-doce em bandejas de poliestireno, com utilização de fertilizante de liberação lenta, e estabelecer o tempo adequado de permanência dessas mudas nas bandejas. Utilizou-se o delineamento experimental inteiramente casualizado, em arranjo fatorial 5x5, com cinco doses do fertilizante de liberação lenta osmocote NPK 15-09-12 (0, 50, 100, 150 e 200 g por 25 kg de substrato e cinco tempos de permanência nas bandejas (14, 28, 42, 56 e 70 dias após o plantio, DAP. Foram avaliados o número de raízes e de folhas e suas respectivas massas de matéria seca. Além disso, avaliou-se a integridade dos torrões em função do tempo de permanência das mudas nas bandejas, em experimento sem adição de fertilizante. Observou-se interação significativa entre doses do fertilizante e o tempo de permanência nas bandejas. A adubação com 150 g favoreceu o incremento do número de raízes e folhas e a massa de matéria seca das mudas, a partir de 14 DAP. Em geral, a integridade dos torrões aumenta com o tempo de permanência. Observaram-se sintomas de deficiência nutricional a partir dos 25 DAP, quando não foi utilizado fertilizante. O período de permanência em bandejas pode ser ampliado se o fertilizante de liberação lenta for utilizado.

  13. Qualidade nutricional e esverdeamento pós-colheita de tubérculos de cultivares de batata

    Directory of Open Access Journals (Sweden)

    Regina Marta Evangelista

    2011-08-01

    Full Text Available O objetivo deste trabalho foi avaliar as características físico-químicas, a qualidade nutricional e a suscetibilidade ao esverdeamento pós-colheita de tubérculos de cultivares de batata. Utilizou-se o delineamento experimental de blocos ao acaso, com cinco repetições. Os tratamentos consistiram de 11 cultivares (Ágata, Ambra, Annabelle, Asterix, Atlantic, Cupido, Daisy, Fontane, Innovator, Markies e Voyager. As cultivares Ágata, Ambra, Annabelle, Cupido e Voyager apresentam tubérculos com polpa de menor firmeza (6,82 a 8,25 N e baixos teores de matéria seca (14,46 a 17,57%, carboidratos (10,97 a 12,51% e amido (10,21 a 12,26%, adequados para o mercado fresco, a preparação de massas e o uso culinário. Já as cultivares Atlantic, Fontane e Innovator apresentam polpa firme (9,14 a 9,55 N e elevados teores de matéria seca (19,68 a 21,63%, carboidratos (14,49 a 15,90% e amido (14,29 a 15,74%, adequados para fritura. As cultivares Asterix e Markies apresentam teores intermediários dessas características e são indicadas para o preparo de massas e fritura. As cultivares Innovator e Markies apresentam melhor qualidade nutricional, com elevados teores de minerais (P, K, Mg, Cu e Mn e de proteína, enquanto as cultivares Ágata e Ambra apresentam menor qualidade nutricional e proteica. A cultivar Voyager apresenta maior esverdeamento pós-colheita que as cultivares Annabelle, Fontane, Markies, Ambra e Atlantic.

  14. Description of Pratylenchoides batatae n. sp. ( Nematoda: Pratylenchidae )%拟短体线虫属一新种

    Institute of Scientific and Technical Information of China (English)

    张绍升; 章淑玲

    2003-01-01

    甘薯拟短体线虫新种(Pratylenchoides batatae n.sp.)根据采自河北省卢龙县前双庙的甘薯根部及根际土壤中的一个拟短体线虫种群进行描述和作图.新种的主要鉴别特征是:唇区有5个唇环,侧区4条侧线并有网格纹,尾呈圆柱形、有24~26个体环,尾端圆、具粗纵纹.食道腺末端覆盖于肠背面,2个亚腹食道腺核均在背食道腺核之后,一个亚腹食道腺核位于食道-肠瓣门前的腹面、另一个位于食道-肠瓣门稍后.近似种为齿尾拟短体线虫(P.crenicauda),该种与新种的主要区别是:唇区3~4个唇环,侧区有6条侧线、无网纹,亚腹食道腺核一个在背食道腺核前、另一个在背食道腺核后.新种为两性种.模式标本保存于福建农林大学植物保护学院植物线虫学实验室.

  15. GENOTYPIC VARIABILITY ESTIMATES OF AGRONOMIC TRAITS FOR SELECTION IN A SWEETPOTATO (IPOMOEA BATATAS POLYCROSS POPULATION IN PAPUA NEW GUINEA

    Directory of Open Access Journals (Sweden)

    Boney Wera

    2015-07-01

    Full Text Available Successful crop breeding program incorporating agronomic and consumer preferred traits can be achieved by recognizing the existence and degree of variability among sweetpotato (Ipomoea batatas, (L. Lam. genotypes. Understanding genetic variability, genotypic and phenotypic correlation and inheritance among agronomic traits is fundamental to improvement of any crop. The study was carried out with the objective to estimate the genotypic variability and other yield related traits of highlands sweetpotato in Papua New Guinea in a polycross population. A total of 8 genotypes of sweetpotato derived from the polycross were considered in two cycles of replicated field experiments. Analysis of Variance was computed to contrast the variability within the selected genotypes based on high yielding β-carotene rich orange-fleshed sweetpotato. The results revealed significant differences among the genotypes. Genotypic coefficient of variation (GCV % was lower than phenotypic coefficient of variation (PCV % for all traits studied. Relatively high genetic variance, along with high heritability and expected genetic advances were observed in NMTN and ABYield. Harvest index (HI, scab and gall mite damage scores had heritability of 67%, 66% and 37% respectively. Marketable tuber yield (MTYield and total tuber yield (TTYield had lower genetic variance, low heritability and low genetic advance. There is need to investigate correlated inheritance among these traits. Selecting directly for yield improvement in polycross population may not be very efficient as indicated by the results. Therefore, it can be conclude that the variability within sweetpotato genotypes collected from polycross population in Aiyura Research Station for tuber yield is low and the extent of its yield improvement is narrow.

  16. Evaluation sensorielle du couscous de farine de manioc (Manihot esculenta, Crantz substituée par celle de patate douce (Ipomoea batatas, Lam

    Directory of Open Access Journals (Sweden)

    Amadou, NM.

    2016-01-01

    Full Text Available Consumer Acceptance of Cassava (Manihot esculenta, Crantz flour's fufu substituted by Sweet Potato (Ipomoea batatas, Lam Flour. This study investigated the consumer acceptance of fufu made by substituting cassava (Manihot esculenta, Crantz flour with sweet potato (Ipomoea batatas, Lam flour at the Food Technology and Post-harvest laboratory of IRAD in Bambui, Cameroon. Four samples of Fufu flour samples F0, F1, F2 and F3 obtained by substituting cassava flour with 0%, 20%, 40% and 50% potato flour respectively were compared. A panel of 30 persons (habitual consumers of Cassava fufu flour carried out a sensory evaluation of the four samples and gave their level of appreciation with regards to taste, aroma, colour, and texture. The study showed that, the substitution of cassava flour with sweet potato flour had no effect on the aroma of the fufu. The sample containing 20% of sweet potato flour (F1 showed no significant difference in texture and aroma compared (p>0.05 to the control (F0. It was also considered as having the best taste (p<0.05 and was the sample preferred by the panelists. In conclusion, an increase in the proportion of sweet potato flour in the cassava flour had a negative influence on the colour, texture, taste and on the acceptance of the fufu.

  17. Study on antitumor effect and its toxicity of Ipomoea Batatas Poir Cv anthocyanins%青紫薯色素抗肿瘤作用及毒理学实验研究

    Institute of Scientific and Technical Information of China (English)

    刘宁; 王红兵; 王春波

    2008-01-01

    目的 研究青紫薯色素抗肿瘤作用并对其毒性进行安全性评价.方法 以小鼠肉瘤S180株和小鼠肝癌H22,瘤株为实验对象,每日分别灌胃给予阳性药呋喃氟尿嘧啶及150、75和37.5mg的青紫薯色素,通过计算肿瘤抑制率观察青紫薯色素的体内抗肿瘤作用;通过亚慢性毒性试验以及骨髓微核试验、Ames试验对青紫薯色素进行毒理学评价.结果 青紫薯色素灌胃,每日150、75mg剂量对小鼠肉瘤S180的抑瘤率分别为45.04%和36.64%.37.5mg剂量无抑瘤作用;青紫薯色素每日150mg剂量对小鼠肝癌H22有明显抑制作用,抑瘤率达33.33%;青紫薯色素1000met(kg·d)灌胃对大鼠未见明显毒性反应;在骨髓微核试验、Ames试验中均呈阴性结果.结论 青紫薯色素对小鼠移植瘤有抑制作用,基本无毒性,无致突变作用.

  18. Técnica para o estudo da anatomia da epiderme foliar de batata A technique for the anatomical study of potato leaf epidermis

    Directory of Open Access Journals (Sweden)

    Fernanda Bastos Segatto

    2004-10-01

    Full Text Available Embora a batata (Solanum tuberosum seja uma espécie de grande valor econômico, são poucas as informações disponíveis sobre a anatomia foliar, principalmente de características estruturais da epiderme. O estudo da anatomia foliar assume grande importância básica, para a ecologia e fisiologia, e aplicada para a fitopatologia e o melhoramento genético. Este trabalho teve por objetivo identificar uma técnica histológica que permite a confecção de lâminas semipermanentes para avaliar a epiderme foliar, em vista frontal, de um grande número de plantas de batata em um curto período de tempo. O corte paradérmico a mão livre, o método de Jeffrey e as técnicas de hidróxido de potássio e de impressão da epiderme foram avaliados. Lâminas semipermanentes foram confeccionadas da secção frontal da epiderme de folíolos principais do terço médio de plantas de batata. A impressão da epiderme em lâmina foi a única técnica que possibilitou a avaliação adequada de todos os clones de batata utilizados. A impressão da epiderme é uma técnica muito rápida, de baixo custo e de fácil execução, que atende os requisitos necessários para a identificação e seleção de características anatômicas de um grande número de plantas em um programa de melhoramento genético de batata.Even though potato (Solanum tuberosum is an economically important crop, information about leaf characteristics of anatomical structure has not been well studied. Studies of leaf epidermis have significance for basic fields as ecology and physiology and for applied fields as plant pathology and breeding. The objective of this research was to identify a fast and easy technique to prepare semi-permanent slides for studying the anatomy of potato leaf epidermis. Para dermal free hand cut, Jeffrey method, potassium hydroxide and epidermal fingerprint on glass slide techniques were evaluated. Semi-permanent slides were prepared from the longitudinal section of

  19. Performance Report and Improvements in CV Machine Areas

    CERN Document Server

    Monsted, A

    2000-01-01

    The performance of cooling and ventilation (CV) equipment is defined as its availability to the PS, SPS and LEP accelerators. Three teams for the accelerators plus a Utilities team, which receives performance information from the physics and technical control room, carry out the operation of this equipment. Collected performance statistics as well as data from the Computer Aided Maintenance Management system (CAMM) and supervision system provide information on the exact state of the CV equipment. This is used to more effectively schedule preventive maintenance which, by reducing system failures, results in improved equipment performance. This paper will present performance data and discuss the prospects for improving it through the use of an updated version of CAMM and a new supervision system.

  20. Spectroscopic Classification of ASASSN-16do as a CV

    Science.gov (United States)

    Strader, Jay; Chomiuk, Laura; Shishkovsky, Laura

    2016-04-01

    We obtained an optical spectrum of ASASSN-16do (ATel #8888) on UT April 17.07 with the Goodman Spectrograph on the SOAR telescope. The source has a blue continuum and broad double-peaked Balmer and He 5875 emission at z~0, with an H-alpha FWHM of about 2400 km/s. This value is high for a CV and suggests the source is observed close to edge-on.

  1. The draft genome of Corchorus olitorius cv. JRO-524 (Navin

    Directory of Open Access Journals (Sweden)

    Debabrata Sarkar

    2017-06-01

    Full Text Available Here, we present the draft genome (377.3 Mbp of Corchorus olitorious cv. JRO-524 (Navin, which is a leading dark jute variety developed from a cross between African (cv. Sudan Green and indigenous (cv. JRO-632 types. We predicted from the draft genome a total of 57,087 protein-coding genes with annotated functions. We identified a large number of 1765 disease resistance-like and defense response genes in the jute genome. The annotated genes showed the highest sequence similarities with that of Theobroma cacao followed by Gossypium raimondii. Seven chromosome-scale genetically anchored pseudomolecules were constructed with a total size of 8.53 Mbp and used for synteny analyses with the cocoa and cotton genomes. Like other plant species, gypsy and copia retrotransposons were the most abundant classes of repeat elements in jute. The raw data of our study are available in SRA database of NCBI with accession number SRX1506532. The genome sequence has been deposited at DDBJ/EMBL/GenBank under the accession LLWS00000000, and the version described in this paper will be the first version (LLWS01000000.

  2. Memory immune response and safety of a booster dose of Japanese encephalitis chimeric virus vaccine (JE-CV) in JE-CV-primed children.

    Science.gov (United States)

    Feroldi, Emmanuel; Capeding, Maria Rosario; Boaz, Mark; Gailhardou, Sophia; Meric, Claude; Bouckenooghe, Alain

    2013-04-01

    Japanese encephalitis chimeric virus vaccine (JE-CV) is a licensed vaccine indicated in a single dose administration for primary immunization. This controlled phase III comparative trial enrolled children aged 36-42 mo in the Philippines. 345 children who had received one dose of JE-CV in a study two years earlier, received a JE-CV booster dose. 105 JE-vaccine-naïve children in general good health were randomized to receive JE-CV (JE-vaccine naïve group; 46 children) or varicella vaccine (safety control group; 59 children). JE neutralizing antibody titers were assessed using PRNT50. Immunological memory was observed in children who had received the primary dose of JE-CV before. Seven days after the JE-CV booster dose administration, 96.2% and 66.8% of children were seroprotected and had seroconverted, respectively, and the geometric mean titer (GMT) was 231 1/dil. Twenty-eight days after the JE-CV booster dose seroprotection and seroconversion were achieved in 100% and 95.3% of children, respectively, and the GMT was 2,242 1/dil. In contrast, only 15.4% of JE-CV-vaccine naïve children who had not received any prior JE vaccine were seroprotected seven days after they received JE-CV. One year after receiving the JE-CV booster dose, 99.4% of children remained seroprotected. We conclude that JE-CV is effective and safe, both as a single dose and when administrated as a booster dose. A booster dose increases the peak GMT above the peak level reached after primary immunization and the antibody persistence is maintained at least one year after the JE-CV booster dose administration. Five year follow up is ongoing.

  3. Adubação da batata doce em São Paulo: Parte I - Efeito da adubação mineral

    Directory of Open Access Journals (Sweden)

    A. Pais de Camargo

    1951-03-01

    Full Text Available Visando estudar a influência da adubação na cultura da batata doce para as condições do Estado de São Paulo, foram efetuadas várias séries de ensaios abrangendo diversos aspectos do problema. Neste trabalho, são apresentados apenas os resultados de 31 ensaios planejados para estudar o efeito dos elementos N, P e K, sôbre o desenvolvimento das ramas, produção, número de batatas por plantio e pêso médio das batatas, nos principais tipos de solo do Estado. Os resultados dos demais ensaios dêste plano serão objeto de outros artigos. Vários planos e delineamentos experimentais foram adotados. Como fonte de elementos minerais foram utilizados os seguintes adubos comerciais : salitre do Chile, sulfato de amônio, superfosfato de cálcio, farinha de ossos degelatinados, cloreto de potássio e sulfato de potássio. As fórmulas correspondentes a cada canteiro foram preparadas previamente, e as misturas assim obtidas aplicadas a lanço sôbre o solo antes do preparo dos camalhões. A fertilidade natural do solo e outros fatôres de ordem agrícola mostraram ter muito maior influência na produção da batata doce que a adubação. Geralmente, apenas se obtiveram aumentos substanciais de produção, determinados pela adubação, nos ensaios plantados em terras de fertilidade muito baixa. Nesses casos, apesar de se mostrarem bastante elevados os aumentos percentuais de produção, as diferenças ou aumentos absolutos foram muito pequenos, muitas vêzes, abaixo de 3 t/ha. Desta forma, os aumentos de produção não compensaram os gastos com adubos. Nos ensaios de produção normal (acima de 10 t/ha, foi verificado um único caso de efeito de nitrogênio na produção, que se deu em Mococa, em solo do arqueano. Efeitos de fósforo ou de potássio foram observados unicamente em solos de origem glacial, de Sorocaba. Um único caso de interação de nitrogênio e fósforo foi obtido em solo do arenito de Bauru, em Pindorama. Com relação ao

  4. Variabilidade genética em batata-doce com base em marcadores isoenzimáticos

    Directory of Open Access Journals (Sweden)

    Oliveira Antonio Carlos B. de

    2002-01-01

    Full Text Available A variabilidade genética de 55 clones de batata-doce, compreendendo cultivares comerciais e acessos obtidos de coletas, foi avaliada por meio de padrões isoenzimáticos, utilizando-se técnicas de análise multivariada. Cultivou-se uma planta por vaso, com 2 litros de capacidade, preenchido com terra, esterco e areia lavada na proporção de 3:2:1, com três repetições. As coletas das folhas e raízes novas para análises iniciaram-se aos 45 dias após o plantio. Foram utilizados, para folhas, os sistemas enzimáticos: GOT, alfaEST, betaEST, PGI, PGM e IDH e, para as raízes: PRX, alfaEST, betaEST, PGI, PGM e IDH. A combinação dos diferentes padrões enzimáticos e tecidos analisados possibilitou a discriminação individual de 32 dos 55 clones analisados. Os 23 clones restantes foram incluídos em sete grupos distintos, com base nos fenótipos isoenzimáticos exibidos. Os clones, dentro de cada um desses grupos, foram considerados materiais de mesmo genótipo, devido, também, às suas características morfológicas semelhantes. A aEST de raízes foi o sistema que apresentou maior número de bandas polimórficas, proporcionando a discriminação individual de 32 clones. O método de agrupamento de Tocher reuniu os 39 clones em nove grupos e, a análise pelo método das médias das distâncias, revelou a formação de onze grupos de similaridade. O clone 46 formou um grupo individual pelo método de Tocher e foi o mais divergente pelo método das médias das distâncias. Por apresentar boas características comerciais e produtivas, seria um dos clones eleitos para se iniciar programas de cruzamentos.

  5. Antidiabetic Effects of Yam (Dioscorea batatas and Its Active Constituent, Allantoin, in a Rat Model of Streptozotocin-Induced Diabetes

    Directory of Open Access Journals (Sweden)

    Hyeon-Kyu Go

    2015-10-01

    Full Text Available The objective of this study was to investigate the therapeutic efficacies of crude yam (Dioscorea batatas powder (PY, water extract of yam (EY, and allantoin (the active constituent of yam in streptozotocin (STZ-induced diabetic rats with respect to glucose, insulin, glucagon-like peptide-1 (GLP-1, C-peptide, glycated hemoglobin (HbAlc, lipid metabolism, and oxidative stress. For this purpose, 50 rats were divided into five groups: normal control (NC, diabetic control (STZ, and STZ plus treatment groups (STZ + PY, STZ + EY, and STZ + allantoin. After treatment for one-month, there was a decrease in blood glucose: 385 ± 7 in STZ, 231 ± 3 in STZ + PY, 214 ± 11 in STZ + EY, and 243 ± 6 mg/dL in STZ + allantoin, respectively. There were significant statistical differences (p < 0.001 compared to STZ (100%: 60% in STZ + PY, 55% in STZ + EY, and 63% in STZ + allantoin. With groups in the same order, there were significant decreases (p < 0.001 in HbAlc (100% as 24.4 ± 0.6 ng/mL, 78%, 75%, and 77%, total cholesterol (100% as 122 ± 3 mg/dL, 70%, 67%, and 69%, and low-density lipoprotein (100% as 29 ± 1 mg/dL, 45%, 48%, and 38%. There were also significant increases (p < 0.001 in insulin (100% as 0.22 ± 0.00 ng/mL, 173%, 209%, and 177%, GLP-1 (100% as 18.4 ± 0.7 pmol/mL, 160%, 166%, and 162%, and C-peptide (100% as 2.56 ± 0.10 ng/mL, 129%, 132%, and 130%. The treatment effectively ameliorated antioxidant stress as shown by a significant decrease (p < 0.001 in malondialdehyde (100% as 7.25 ± 0.11 nmol/mL, 87%, 86%, and 85% together with increases (p < 0.01 in superoxide dismutase (100% as 167 ± 6 IU/mL, 147%, 159%, and 145% and reduced glutathione (100% as 167 ± 6 nmol/mL, 123%, 141%, and 140%. The results indicate that yam and allantoin have antidiabetic effects by modulating antioxidant activities, lipid profiles and by promoting the release of GLP-1, thereby improving the function of β-cells maintaining normal insulin and glucose levels.

  6. 长沙市居民食用甘薯情况与健康状况的调查%Survey on Eating Ipomoea batatas and Health of Residents in Changsha City

    Institute of Scientific and Technical Information of China (English)

    张音; 夏延斌; 张娟; 熊学斌; 邓传波; 李利晓; 钟燕青; 孟潇; 常怡

    2011-01-01

    目的:全面深入地研究长沙市居民食用甘薯与生活观念、健康状况之间的关系。方法:随机抽取长沙市不同地区年龄在20岁以上的居民发放调查问卷进行调查。结果:在405例调查者中,18.27%的人经常食用甘薯,61.98%的人偶尔食用甘薯,19.76%的人从不吃甘薯;甘薯被视为营养全面而均衡的保健食品,受到青年一代的青睐,他们不食用甘薯的比例在逐步降低;老年人群食用甘薯的频率较高,常食甘薯对于心血管疾病、糖尿病和骨质疏松症可能有一定的预防作用;经常食用甘薯的老年人食用粗粮、水果,参加锻炼和娱乐的比例较高,食用保健品的比例较低,健康营养意识比较强。%【Objective】In order to research the relationship among eating Ipomoea batatas,life notion and health of residents in Changsha.【Method】Residents of all more than 20 years old in different areas in Changsha were randomly chosen to answer the questionnaires.【Result】In 405 participants,18.27% of them often ate Ipomoea batatas,61.98% occasionally consumed them,and 19.76% never ate them.Ipomoea batatas which were seen as comprehensive and balanced nutrition health food were favoured by the younger generation.The proportion of the younger generation who did not eat Ipomoea batatas reduced gradually.Older people had a higher frequency of eating Ipomoea batatas,which might have a protective effect on cardiovascular disease,diabetes,and osteoporosis.Old people who often ate Ipomoea batatas also had a higher percentage of eating whole grains and fruits,doing exercise and entertainment,and they had a low proportion of eating health products.Health and nutrition consciousness of these people was stronger.

  7. Fertilização de cobertura com boro e potássio na nutrição e produtividade da batata-doce Fertilization with boron and potassium on sweet potato nutrition and yield

    Directory of Open Access Journals (Sweden)

    Fábio R Echer

    2009-06-01

    Full Text Available Os Latossolos e Argissolos apresentam elevada taxa de intemperização dos seus materiais constituintes, com pouca ou nenhuma reserva mineral de potássio (K e normalmente, baixos teores de matéria orgânica do solo, principal fonte de boro (B às plantas. O objetivo do trabalho foi avaliar a produtividade da cultura da batatadoce em resposta à combinação de doses de adubação potássica e boratada. O experimento foi conduzido entre os meses de agosto de 2007 e janeiro de 2008, em lavoura comercial de batata-doce, cv. Canadense, em Presidente Prudente-SP. O delineamento experimental utilizado foi de blocos casualizados, com três repetições, em esquema fatorial 4x4: doses de adubação potássica (0; 50; 100 e 200 kg ha-1 de K2O e doses de adubação boratada (0; 1; 2 e 3 kg ha-1 de B, ambas aplicadas em cobertura. Os tratamentos foram aplicados aos 62 dias após o plantio. A maior produtividade obtida foi de 27,7 t ha-1, com a combinação das doses de 2 kg ha-1 de B aliada à aplicação de 200 kg ha-1 de K2O. O teor foliar de B aumentou conforme o aumento da dose de B e de K. Doses de 1 e 3 kg ha-1 de B não influenciaram o teor de Mg nas folhas, mas em doses de 0 e de 2 kg ha-1 de B o teor de Mg apresentou comportamento quadrático em função do aumento da adubação potássica.Most of Brazilian soils have little or no mineral reserve of potassium and, usually low content of organic matter in the soil, the most important source of boron for the plants. In this work we evaluated the yield of sweet potato, cultivar Canadense, in response to the combination of different rates of potassium fertilization and boron fertilization. The research was carried out from August 2007 to January 2008, in Presidente Prudente, São Paulo State, Brazil. The experimental design consisted of randomized blocks in a factorial scheme 4x4, with three repetitions: rates of potassium fertilization (0, 50, 100 and 200 kg ha-1 of K2O, and levels of boron

  8. Qualidade bromatológica das silagens de capim-elefante aditivadas com raspa de batata Bromatologic qualities of elephant grass silages added with potato scrapings

    Directory of Open Access Journals (Sweden)

    Adauton Vilela de Rezende

    2008-04-01

    Full Text Available A raspa de batata foi misturada ao capim-elefante (Pennisetum purpureum Schum. na ensilagem. A colheita do capim-elefante foi realizada manualmente após 80 dias do corte de uniformização a uma altura de 10 cm da superfície do solo. As misturas capim-elefante e raspa de batata foram feitas nas seguintes proporções de matéria verde: 100 e 0%, 93 e 7%; 86 e 14%; 79 e 21%; 72 e 28% de capim e raspa de batata, respectivamente. As plantas foram picadas em partículas de 2,0 a 3,0 cm de tamanho, ensiladas por 30 dias, em silos de "PVC" de dez centímetros de diâmetro e quarenta centímetros de altura. Foram avaliadas as porcentagens de matéria seca (MS, valores de pH, perda de gases, perda de efluentes, proteína bruta (PB, fibra em detergente neutro (FDN, fibra em detergente ácido (FDA e digestibilidade in vitro da matéria seca (DIVMS, das silagens. O delineamento experimental empregado foi o inteiramente casualizado, com quatro repetições. Concluiu-se que as silagens de capim-elefante com raspa de batata apresentaram maiores porcentagens de MS, PB, valores de pH e DIVMS e menor porcentagem de perda de gases, perda de efluentes, FDN e FDA na matéria seca com o aumento dos níveis de adição.Potato scrapings were mixed with elephant grass (Pennisetum purpureum, Schum in silage. Elephant grass was harvested manually on the 80th day after leveling mowing had been done at a height of 10 cm from the soil surface. The mixtures of elephant grass and potato scrapings were made in the in the following ratios of green matter: 100% and 0%; 93% and 7%; 86% and 14%; 79% and 21%; and 72% and 28% of grass and potato scrapings, respectively. The plants were chopped in 2-3 cm particles and ensiled for 30 days in 10 cm wide x 40 cm high "PVC" silos. The following variables of the silage were evaluated: percentage of dry matter (DM, pH values, loss of gases, and of efluent, crude protein (CP, neutral detergent fiber (NDF, acid detergent fiber (ADF, and in

  9. Ipomoea batatas (Convolvulaceae)-mediated synthesis of silver nanoparticles for controlling mosquito vectors of Aedes albopictus, Anopheles stephensi, and Culex quinquefasciatus (Diptera:Culicidae).

    Science.gov (United States)

    Pavithra Bharathi, V; Ragavendran, C; Murugan, N; Natarajan, D

    2016-12-08

    We proposed an effective and eco-friendly control of dengue, malaria, and filariasis-causing vectors. We tested Ipomoea batatas leaves-mediated silver nanoparticles (AgNPs) against first to fourth instar larvae and adults of Aedes albopictus, Anopheles stephensi, and Culex quinquefasciatus at different concentrations. The synthesized AgNPs showed broad spectrum of larvicidal and adulticidal effects after 48 h of exposure. The characterization of synthesized AgNPs was done using various spectral and microscopy analyses. The maximum efficacy was observed in synthesized AgNPs against the adult of Ae. albopictus with the LC50 and LC90 values were 10.069 and 15.657 μg/mL, respectively, followed by others.

  10. 甘薯的主要营养成分和保健作用%Main Nutritional Components of Ipomoea Batatas and Its Healthy Functions

    Institute of Scientific and Technical Information of China (English)

    张立明; 王庆美; 王荫墀

    2003-01-01

    @@ 甘薯(Ipomoea batatas)是世界上重要的粮食、饲料和工业原料作物,普遍种植于世界上热带和亚热带地区的100多个国家.甘薯自400多年前引入中国,目前我国已成为世界上最大的甘薯生产国,据FAO(2000年)统计,我国甘薯年种植面积616万hm2,总产11.7亿t,分别占世界种植面积和总产的68.1%和86.8%.

  11. Toxicidade de antibióticos no cultivo in vitro da batata em meios semi-sólido e líquido

    Directory of Open Access Journals (Sweden)

    Pereira Jonny Everson Scherwinski

    2003-01-01

    Full Text Available O objetivo deste trabalho foi avaliar os efeitos fitotóxicos de antibióticos no crescimento e na taxa de multiplicação in vitro da batata. Brotações da cultivar Baronesa foram cultivadas em meio de multiplicação de consistência semi-sólida e líquida. O meio de multiplicação foi formado pelos sais e vitaminas de MS ao qual adicionou-se um dos seguintes antibióticos: ampicilina, cloranfenicol, estreptomicina e tetraciclina, previamente selecionados em razão da ação bactericida sobre contaminantes da cultura, nas concentrações de 0, 32, 64, 128, 256, 512 e 1.024 mg L-1. Por 21 dias os materiais foram mantidos em sala de crescimento a 25±2°C, 16 horas de luz e fluxo de radiação de 35 µmol m-2 s-1. Nos tratamentos em que se utilizou meio de cultura líquido, os frascos foram mantidos sob constante agitação em mesa agitadora do tipo orbital. A ampicilina foi o único antibiótico que não afetou a sobrevivência e o desenvolvimento dos explantes de batata em meio de multiplicação, podendo ser indicada para trabalhos de descontaminação in vitro dessa espécie. O aumento das concentrações de cloranfenicol, estreptomicina e tetraciclina no meio de cultura apresentou efeitos fitotóxicos severos sobre o crescimento e taxa de multiplicação do material vegetal.

  12. Propriedades físicas, químicas e de barreira em filme formados por blenda de celulose bacteriana e fécula de batata

    Directory of Open Access Journals (Sweden)

    Denise M. Almeida

    2013-01-01

    Full Text Available A associação da celulose bacteriana com outros polímeros pode ser um método efetivo para aumentar suas características e estrutura, proporcionando novas aplicações industriais. O objetivo do trabalho foi verificar a influência da celulose bacteriana nas propriedades físicas, químicas e de barreira em filmes a partir de blendas de celulose bacteriana e fécula de batata. Os filmes foram produzidos segundo planejamento de mistura ternária, tendo como variáveis independentes a celulose bacteriana, fécula de batata e glicerol. Blendas com maiores concentrações de celulose bacteriana apresentaram aumento na espessura, gramatura, taxa de permeabilidade ao vapor de água e permeabilidade ao vapor de água e, redução da densidade, solubilidade, opacidade, índice de intumescimento em pH 1,8 e 8,0 (1, 10, 30 e 60 minuto. A microscopia eletrônica de varredura mostrou filmes com matriz coesa, porém irregular com presença de partículas insolúveis de celulose bacteriana. O filme de celulose bacteriana pura apresentou aumento na gramatura, opacidade, taxa de permeabilidade ao vapor de água e no intumescimento em pH 1,8 1 minuto e pH 8,0 1, 10, 30 e 60 minutos. A celulose bacteriana promoveu elevada capacidade de retenção, absorção e baixa dessorção a água, proporcionando biofilmes com características de barreira à luz e manutenção da umidade.

  13. Effect of Sodium Cyanide on Wheat (Triticum durum cv. Altar and T. aestivum cv. Cumhuriyet)

    DEFF Research Database (Denmark)

    Gemici, Meliha; Karshenass, A.M.; Tan, Kit

    2008-01-01

    , the first set was used as the control and watered using ordinary bottled water sold commercially. The other five sets with T. durum cv. Altar and T. aestivum cv. Cumhuriyet seedlings were additionally watered with various concentrations of sodium cyanide, the test-quantity used being 10-50 mg/L. Growth...

  14. Comparison of tracking algorithms implemented in OpenCV

    Directory of Open Access Journals (Sweden)

    Janku Peter

    2016-01-01

    Full Text Available Computer vision is very progressive and modern part of computer science. From scientific point of view, theoretical aspects of computer vision algorithms prevail in many papers and publications. The underlying theory is really important, but on the other hand, the final implementation of an algorithm significantly affects its performance and robustness. For this reason, this paper tries to compare real implementation of tracking algorithms (one part of computer vision problem, which can be found in the very popular library OpenCV. Moreover, the possibilities of optimizations are discussed.

  15. OpenCV 3.0 computer vision with Java

    CERN Document Server

    Baggio, Daniel Lélis

    2015-01-01

    If you are a Java developer, student, researcher, or hobbyist wanting to create computer vision applications in Java then this book is for you. If you are an experienced C/C++ developer who is used to working with OpenCV, you will also find this book very useful for migrating your applications to Java. All you need is basic knowledge of Java, with no prior understanding of computer vision required, as this book will give you clear explanations and examples of the basics.

  16. Composición mineral y comparación de raíces reservantes de variedades de batatas (Ipomoea batatas (L. Lam. cultivadas en la isla de La Palma, España

    Directory of Open Access Journals (Sweden)

    Adriana Isabel Montes Hernández

    2010-07-01

    Full Text Available Los minerales Na, K, Ca, Mg, Fe, Cu, Zn y Mn fueron determinados, mediante espectrofotometría de absorción atómica, en raíces de 15 variedades de batatas cultivadas en La Palma (De papa o maní, Parado, Cubana, Cubana de baselo gordo, Cubana de hoja redonda, Blanquita, Saucero o Lanzarotero, Pata de Gallo, Padrón de Seda, Alicantina, Amarillo de Año, De Lanzarote, Matojo, Matojo Fino y Rajada; las 5 primeras de cultivo corto y las 10 restantes de cultivo largo. Se realizó análisis de varianza y prueba de rango múltiple de Duncan a los datos de las variables estudiadas. Se calcularon los coeficientes de correlación de Pearson (r para establecer grados de relación de los minerales entre las variedades; prueba de t de Student para comparar clasificando a las muestras según ciclo de recolección (Temprana y Tardía; análisis factorial para interpretar las relaciones existentes a través factores y análisis discriminantes (de paso a paso con criterio de selección la lambda de Wilks (λ e introduciendo todas las variables validados a través de análisis de validación cruzada. El elemento mineral (en mg/kg presente en mayor concentración en la totalidad de las muestras fue K (2086 ± 418, seguido de Ca (974 ± 486 y Mg (244 ± 70, siendo el Zn el menos presente (1,12 ± 0,61. Las variedades con mayor contenido mineral fueron Alicantina (Ca: 1809 ± 327 y Cu: 2,97 ± 0,23 y Padrón de Seda (Mg: 435 ± 46 y Mn: 3,08 ± 0,49 y la de menor aporte fue Parado (Cu, Mn, Ca, K y Mg. Las variedades Tardías presentaron mayores concentraciones de Cu, Fe, Mn, Ca, K, Mg y menores de Zn y Na en relación a las variedades Tempranas (p < 0,05. Se evidenció que las concentraciones de Cu, Zn y Na presentaron alto número de correlaciones significativas. El análisis factorial permitió deducir que Mg, K y Fe son las variables que permiten caracterizar el sistema perdiendo un mínimo de información total. El porcentaje de casos originales

  17. Composición mineral y comparación de raíces reservantes de variedades de batatas (Ipomoea batatas (L. Lam. cultivadas en la isla de La Palma, España

    Directory of Open Access Journals (Sweden)

    Adriana Isabel Montes Hernández

    2010-06-01

    Full Text Available Los minerales Na, K, Ca, Mg, Fe, Cu, Zn y Mn fueron determinados, mediante espectrofotometría de absorción atómica, en raíces de 15 variedades de batatas cultivadas en La Palma (De papa o maní, Parado, Cubana, Cubana de baselo gordo, Cubana de hoja redonda, Blanquita, Saucero o Lanzarotero, Pata de Gallo, Padrón de Seda, Alicantina, Amarillo de Año, De Lanzarote, Matojo, Matojo Fino y Rajada; las 5 primeras de cultivo corto y las 10 restantes de cultivo largo. Se realizó análisis de varianza y prueba de rango múltiple de Duncan a los datos de las variables estudiadas. Se calcularon los coeficientes de correlación de Pearson (r para establecer grados de relación de los minerales entre las variedades; prueba de t de Student para comparar clasificando a las muestras según ciclo de recolección (Temprana y Tardía; análisis factorial para interpretar las relaciones existentes a través factores y análisis discriminantes (de paso a paso con criterio de selección la lambda de Wilks (λ e introduciendo todas las variables validados a través de análisis de validación cruzada. El elemento mineral (en mg/kg presente en mayor concentración en la totalidad de las muestras fue K (2086 ± 418, seguido de Ca (974 ± 486 y Mg (244 ± 70, siendo el Zn el menos presente (1,12 ± 0,61. Las variedades con mayor contenido mineral fueron Alicantina (Ca: 1809 ± 327 y Cu: 2,97 ± 0,23 y Padrón de Seda (Mg: 435 ± 46 y Mn: 3,08 ± 0,49 y la de menor aporte fue Parado (Cu, Mn, Ca, K y Mg. Las variedades Tardías presentaron mayores concentraciones de Cu, Fe, Mn, Ca, K, Mg y menores de Zn y Na en relación a las variedades Tempranas (p < 0,05. Se evidenció que las concentraciones de Cu, Zn y Na presentaron alto número de correlaciones significativas. El análisis factorial permitió deducir que Mg, K y Fe son las variables que permiten caracterizar el sistema perdiendo un mínimo de información total. El porcentaje de casos originales

  18. Cloning and Sequence Analysis of 18SrRNA Gene in Ipomoea batatas and Ipomoea setosa%甘薯和巴西牵牛18S rRNA基因的克隆和序列分析

    Institute of Scientific and Technical Information of China (English)

    王振东; 王晓华; 乔奇; 张德胜; 秦艳红; 田雨婷; 张振臣

    2011-01-01

    [Objective]to supply sequence information of internal control gene for analyzing gene expression of I.batatas and viruses infecting L batatas.[Method]Sequences of 18S rRNA gene were cloned using PCR method from genomic DNA of I.batatas cultivar 'Shangshu19', 'Beijing553' and I.setosa, respectively.[Result]The sequencing of the DNA fragments all generated a total of 1630 bp nucleotide sequence.The obtained 18S rRNA gene sequences of I.batatas and I.setosa shared more than 98% identity with I.hederaceaand Nicotiana tabacum among dicotyledons, and shared high identity with Lilium superbum among monocotyledons.[Conclusion]Partial sequences of 18S rRNA gene were cloned from genomic DNA of I.batatas cultivar 'Shangshu19','Beijing553' and I.setosa, which provided sequence information not only for analyzing gene expression of I.batatas and viruses infecting I.batatas using 18S rRNA gene as internal control, but for molecular systematic research of I.batatas and I.setosa.%[研究目的]为甘薯和侵染甘薯病毒的基因表达研究提供内参基因序列信息.[方法]分别以'商薯19'、'北京553'2个甘薯品种和巴西牵牛的基因组DNA为模板,利用PCR方法克隆甘薯和巴西牵牛18S rRNA基因序列.[结果]测序结果表明,获得的供试2甘薯品种和巴西牵牛的18S rRNA基因序列长度均为1630 bp;序列比对结果表明,甘薯和巴西牵牛与裂叶牵牛、烟草等双子叶植物的18S rRNA基因相应序列的一致性均达98%以上,与单子叶植物Lilium superbum的18S rRNA基因序列也有较高的一致性.[结论]从2甘薯品种和巴西牵牛的基因组中克隆出了18S rRNA基因部分序列,研究结果不仅为利用18S rRNA基因作为内参基因分析甘薯和侵染甘薯病毒基因的表达研究提供了序列依据,而且可为甘薯和巴西牵牛的分子系统学研究提供序列参考.

  19. Perancangan Kemasan Transportasi Buah Jambu Air (Syzygium aqueum cv Camplong

    Directory of Open Access Journals (Sweden)

    Iswahyudi

    2015-04-01

    Full Text Available Jamboo cv Camplong was an exotic fruit from Sampang Indonesia which had high economic values. The quality of fresh Jamboo was greatly influenced by the types of packaging and ways of its transportation that affected its shelf life. The purpose of this research were designing a primary packaging and analyzing the quality of Jamboo cv Camplong after short transportation (from Sampang to Surabaya. Farmers used conventional packaging with capacity of 8.4 kg/box (dimension 478 mm x 146 mm x 354 mm. Based on theoretical packaging design showed that the flute BC cardboard (capacity 4.5 kg/box, dimension 357 mm x 217 mm x 216 mm with partition flute A cardboard. In fact, there was needed modification of the dimension (342 mm x 210 mm x 200 mm because of the fruits diameter (60-65 mm. This result did not change the efficiency usage of transportation space (91-95% and compression strength of box can support (7 boxes/ stack. The result showed that the mechanical damage after transportation were 20.87% for conventional packaging (as control and 7.70% for modification packaging design (packaging with partition.

  20. Production Management in SME's Industry: Case Study of CV Wiracana

    Directory of Open Access Journals (Sweden)

    Apriani Kurnia Suci

    2015-08-01

    Full Text Available Production Management is the act of designing, operating, and improving the productive systems – a system for getting the work done. Along the process, the synergy in between machineries, facilities and people could empower the sustainable of the production. In fact, for some cases, the implementation of unique system is needed for the production process. The example for this transformation production management is in the case of CV Wiracana, a handmade manufacturing company for folding hand fans from Bali. CV Wiracana's products are very unique, combined from mass production for the speed and an art for the custom made product. At one side, the market forces them to speed up the production and for this purpose, they must set up the new system on their production line. On the other side, the masterpiece also needs to be produced without jeopardizing mass production line schedule. The transformation production system needs to be done no later than 2015 as the urgency to fulfill the customer demand, business growth, compete in the industry and sustainability. The changes are expected to improve the production at least about 20% or doubled from the current production.

  1. Utilization effect of cassava (Manihot esculenta and potatoe (Ipomoea batatas on pigmentation, carotenoids pull on egg yolk and performance yield hens Influencia de harinas de yuca y de batata sobre pigmentación, contenido de carotenoides en la yema y desempeño productivo de aves en postura

    Directory of Open Access Journals (Sweden)

    Ceballos L Hernán

    2006-09-01

    Full Text Available

    Utilization effect of cassava (Manihot esculenta and potatoe (Ipomoea batatas on pigmentation, carotenoids pull on egg yolk and performance yield hens. Eight diets (T1:without pigment, T2: commercial pigment, T3: cassava meal 15%, T4: cassava meal 30%, T5: sweet potato meal 15%, T6: sweet potato meal 30%, T7: cassava and sweet potato meal 15% each, T8: cassava and sweet potato meal 25% each in a randomized design using four replicates of three hens each during seven experimental periods were evaluated. Diets were iso-energetics (2.9 kcal/g and iso-proteis (14.5% CP. Carotenoid concentrations (UV-visible chromatography had differences (P<0.01 among diets. Pigmentation (Fan Roche and carotenoid concentration in egg yoks to come from cassava and sweet potato diets did not show differences (P>0.05 A comparison with egg yolk to come from test diets significant differences (P<0.01 were detected. Diet with commercial pigment showed the highest pigmentation and carotenoid concentration in egg yolk. The other hand, there saw not differences (P>0.05. A comparison with egg yolk to come from test diets significant differences (P<0.01 were detected. Diet with commercial pigment showed the highest pigmentation and carotenoid concentration in egg yolk. The other hand, there saw not differences (P>0.05 between egg yolk to come from diet without pigment and cassava and sweet potato diets. Lutein, -carotene, -carotene, and 9-cis-- carotene were the

  2. Viabilidade econômica da adubação adicional de genótipos de feijoeiro em relação ao resíduo de adubação da batata

    Directory of Open Access Journals (Sweden)

    Kikuti Hamilton

    2002-01-01

    Full Text Available O objetivo deste trabalho foi avaliar a viabilidade econômica de genótipos de feijoeiro, com e sem adubação adicional, em relação à adubação residual da batata. Foram conduzidos, em Lavras, MG, quatro experimentos com o feijão em sucessão à cultura da batata. Em cada safra (águas 98/99 e inverno-primavera 99 foi instalado um experimento utilizando apenas a adubação residual da batata e outro que utilizou, além do mencionado resíduo, uma adubação para o feijoeiro, de 500 kg ha-1 da formula 4-14-8 na semeadura e 40 kg ha-1 de N (sulfato de amônia em cobertura. O delineamento experimental foi látice 5 x 5, com três repetições, seis cultivares comerciais e 19 linhagens utilizadas no programa de melhoramento do feijoeiro da Universidade Federal de Lavras. A análise conjunta mostrou que os genótipos de feijoeiro apresentaram comportamento não coincidente em resposta à adubação. Em ambas as safras, a adubação adicional do feijoeiro elevou o rendimento de grãos, mas apenas na safra de inverno-primavera mostrou-se economicamente viável. Os resultados evidenciaram, ainda, a possibilidade de se obterem bons rendimentos de grãos com a cultura do feijoeiro utilizando apenas a adubação residual da batata.

  3. Manufacture and nutritional composition analysis of the Dioscorea batatas F.flablla.Makiro jam%脚板苕酱的加工及营养成分分析

    Institute of Scientific and Technical Information of China (English)

    胡尚勤

    2012-01-01

    采用脚板苕块茎为原料,去皮洗净后蒸煮再磨成酱醪,与辅料混合、装瓶杀菌,制备出色、香、味俱全含有丰富矿物质、氨基酸、维生素并具有补脾养胃、生津益肺、补肾涩精功能的脚板苕酱.脚板苕酱颜色鲜艳,为金黄色,味道鲜美,营养丰富,结果表明,蛋白质含量33.5 mg·g-1,含有17种氨基酸和8种人体必需氨基酸,脂肪含量18.1 mg·g-1,含有丰富矿物质和维生素.%Dioscorea batatas F. flablla. Makiro was used as the raw material. After cleaning and grinding into sauce and mixing with the supplementary material, and sterilizing the jam by bottling, the Dioscorea batatas F. flablla. Makiro jam was prepared. Nutritional analysis of the ingredient of the Dioscorea batatas F. flablla. Makiro jam was conducted with chemical method and the instrumental method. The results indicate that the color of Dioscorea batatas F. flablla. Makiro jam is bright and light red brown, the flavor is tasty, the nutrition is rich, the protein content is 33. 5 mg · g-1, including 17 kinds of amino acids and the 8 kinds of essential amino acids needed by the human body , the fat is 18. 1 mg · g-1, as well as the rich mineral substances and the vitamin, such as the calcium content 9 100 (xg · g-1 ,the vitamin C content up to 1 600 μg · g-1 ,Vitamin B, 600 μg · g-1.

  4. EFEK HIPOGLIKEMIK EKSTRAK ETANOL UMBI KETELA RAMBAT (Ipomoea batatas P (EEUKR PADA MENCIT SWISS YANG DIINDUKSI ALOKSAN

    Directory of Open Access Journals (Sweden)

    Akrom Akrom

    2014-05-01

    Full Text Available Sweet potatos rood contain lots of beta-carotene, polyphenols and flavonoids. Alloxan proven pancreatic cell damage through oxidative stress mechanisms. The compound beta-carotene, polyphenols and flavonoids are thought to antioxidative and cytoprotective, inhibit cell damage caused by alloxan exposure. This study aimed to determine the effect of ethanolic extract of sweet potatos (Ipomoea batatas P (EEUKR on blood glucose levels and pancreatic histopathology on alloxaninduced Swiss mice. Used 15 test animals, Swiss mice, with an average weight of 20-30 grams. Test animals were divided into 5 groups, with each group consisting of 3 mice. Group I was the negative control group who were given distilled water (akua group, and group II, III, IV and V are the treatment group were given ethanolic extract of sweet potatos rood (EEUKR at a dose of 2.5, 7.5, 22.5 and 67.5 mg/KgBW/day orally for 10 days, 7 days before and 3 days after the alloxan induced. Alloxan induction performed on the 7th day intraperitoneally at a dose of 120 mg/kgBW. Examination of blood glucose levels conducted on 4th and day 10th day of treatment. On the 10th day of the test animals were sacrificed for isolated pancreas and histopathologic examination. Analysis of variance conducted to determine the significance difference in average blood glucose levels between groups during the test and ANOVA followed by LSD test at 95% confidence level. Pancreatic histopathology data were analyzed qualitatively. The results showed that the EEUKR dose of 22.5 and 67.5 mg/kgBW/day had the effect of hypoglycemia in Swiss mice. Blood glucose levels of Swiss mice before alloxan induced in treatment group with EEUKR dose of 67,5 mg/Kg BW were lower than blood glucose levels of akua groups, statistically significant (p <0,05. Blood glucose levels of alloxan induced swiss mice of treatment groups with EEUKR dose of 22.5 and 67.5 mg/KgBW were lower than blood glucose level of akua group and

  5. GpuCV : a GPU-accelerated framework for image processing and computer vision

    OpenAIRE

    ALLUSSE, Yannick; Horain, Patrick; Agarwal, Ankit; Saipriyadarshan, Cindula

    2008-01-01

    International audience; This paper presents briefly describes the state of the art of accelerating image processing with graphics hardware (GPU) and discusses some of its caveats. Then it describes GpuCV, an open source multi-platform library for GPU-accelerated image processing and Computer Vision operators and applications. It is meant for computer vision scientist not familiar with GPU technologies. GpuCV is designed to be compatible with the popular OpenCV library by offering GPU-accelera...

  6. Pengaruh Budaya Organisasi, Kepemimpinan, dan Motivasi Kerja terhadap Kepuasan Kerja Karyawan CV Surya Raya

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    Laksmi Sito Dwi Irvianti

    2012-05-01

    Full Text Available This research was conducted on CV Surya Raya which is engaged in car shipping. The aim of this study is to determine the influence of organization culture, leadership, and working motivation partially to employees’ satisfaction in CV Surya Raya. The data was collected by conducting interviews with the company and distributing questionnaires to 67 employees as respondents and then analyzed using linear regression analysis method. From the research results, leadership variable does not have a significant impact on employees' job satisfaction in CV Surya Raya. Whereas, the motivation variable has greater influence on job satisfaction of CV Surya Raya employees compared to the organization's culture.

  7. Optimization of freeze drying conditions for purified pectinase from mango (Mangifera indica cv. Chokanan) peel

    National Research Council Canada - National Science Library

    Mehrnoush, Amid; Mustafa, Shuhaimi; Yazid, Abdul Manap Mohd

    2012-01-01

    Response surface methodology (RSM) along with central composite design (CCD) was applied to optimize the freeze drying conditions for purified pectinase from mango (Mangifera indica cv. Chokanan) peel...

  8. Herbs Recognition Based on Android using OpenCV

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    I Wayan Agus Suryawibawa

    2015-01-01

    Full Text Available Herbs are used in traditional medicine. There are so many herbs are spread across the world, it is difficult to memorize it all. This paper describes an android application to recognize herbs by their leaf characteristics (shape, veins, and keypoints. Shape and veins of leaves are recognized by Invariant Moment Method as the feature extraction. City Block Distance used to calculate the distance between the features. Whereas for detection and keypoints extraction using Oriented FAST and Rotated BRIEF on OpenCV library. This keypoints distance calculation using Brute-Force Hamming. Matching is done by calculating the shortest distance between test image and reference image. If the result is less than or equal to threshold then image is match. Experiment result show this application can achieve 79% of success rate by using keypoints. This result is influenced by glossy leaf surface, so there is many reflected light that become noise.

  9. OpenCV Based Disease Identification of Mango Leaves

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    Jayaprakash Sethupathy

    2016-10-01

    Full Text Available This paper aims in classifying and identifying the diseases of mango leaves for Indian agriculture. K-means algorithm is chosen for the disease segmentation, and the disease classification and identification is carried out using the SVM classifier. Disease identification based on analysis of patches or discoloring of leaf will hold good for some of the plant diseases, but some other diseases which will deform the leaf shape cannot be identified based on the same method. In this case leaf shape based disease identification has to be performed. Based on this analysis two topics are addressed in this research paper. (1 Disease identification using the OpenCV libraries (2 Leaf shape based disease identification.

  10. ipomoea batatas (l

    African Journals Online (AJOL)

    preferred customer

    K Sa. 7.98 %. Kt. 6.44 %. K fixation h-1 contact time. -4.89 mg/100 g soil. K fixation 2400 h .... Effect of moisture level (60% WHC every day) and fertilizer on stock diameter. T2. T4. T6. 0. 10. 20. 30. 40. 50. 60. 70. 80 .... within 15 days where as in T2, T4 and T6 34–44% .... Follet, R.M., Murphy., L.S. and Donahue, R.L. (1981).

  11. Propolis extract in postharvest conservation Solo papaya cv. 'Golden'

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    Flávia Regina Passos

    2016-12-01

    Full Text Available The high perishability of papaya (Carica papaya L. reduces its lifespan as well as limits marketing. Coating the fruits is an alternative to aid food preservation. We aimed to evaluate the effects of coating propolis extract on the physicochemical characteristics of papaya stored at room temperature. Solo papayas cv. 'Golden' were randomly divided into five postharvest treatment groups, three forms of dip-coating (70% alcohol, hydroalcoholic extract of propolis to 2.5%, and hydroalcoholic extract of propolis to 5% and two controls (one uncoated and one with refrigerated uncoated fruits. The weight loss, firmness, soluble solids (SS, titratable acidity (TA, SS/TA, and hydrogen potential (pH were evaluated at the intervals of 4 days every 12th storage day. Sensory analysis was performed on the 4th day of storage of papayas and evaluated by untrained through the acceptance testing. Treatments “refrigerated”, “propolis 2.5%”, and “5% propolis” presented with the lowest weight loss. The firmness level for treatment propolis 5% was superior to that of control, alcohol, and 2.5% propolis treatments. The SS was greater for propolis 5% treatment, which only differed from the alcohol treatment. The TA and SS/TA did not vary with the treatments, but with the storage time. The pH of refrigerated papaya showed significant differences in relation to other treatments. The fruits subjected to refrigerated treatment presented with chilling injury. Papayas coated with propolis extract showed sensory acceptability similar to that in other treatments on the 4th day of storage. The coating of propolis extract is a promising alternative for the control of weight loss and for the maintenance of firmness in Solo papaya cv. 'Golden'.

  12. 水提紫甘薯色素废渣总黄酮提取工艺研究%Study on the extraction of flavonoids from residue of water-extracting pigment of Ipamoea batatas L

    Institute of Scientific and Technical Information of China (English)

    高晴; 殷建忠; 王瑞欣; 吴志霜; 周建于; 徐芳; 王琦; 吴少雄; 吴丽莎; 李桑柔

    2014-01-01

    Objective To research the extraction process of the total flavonoids from residue of water-extracting pigment of Ipamoea batatas L., which could provide the theoretical basis and reference for the comprehensive development and utilization of residue of water-extracting pigment of Ipamoea batatas L.. Methods Traditional solution method, ultrasonic-assisted method and microwave-assisted method were adopted to extract total flavonoids from residue of water-extracting pigment of Ipamoea batatas L.. The best extraction method and process conditions were determined by single factor experiment and orthogonal experiment. Results Microwave-assisted extraction was confirmed as the optimum method for extracting total flavonoids from residue of water-extracting pigment of Ipamoea batatas L.. The optimum extraction process was extracted for 4 min at microwave power 708 W by the ratio of material to liquid 1:40 with the 70%volume fraction of ethanol. Total flavonoids was extracted on this condition by 6 times, and the content of total flavonoids in residue of water-extracting pigment of Ipamoea batatas L. was 3.83 g±0.03 g/100 g. The best extraction times is 2 times. Conclusion The content of flavonoids in residue of water-extracting pigment of Ipamoea batatas L. is higher and residue of water-extracting pigment of Ipamoea batatas L. has greater utilization value.%目的:研究水提紫甘薯色素废渣总黄酮的提取工艺,旨在为紫甘薯废渣的综合开发利用提供理论基础和参考依据。方法采用溶液浸提法、超声波辅助法、微波萃取法对水提紫甘薯色素废渣中的总黄酮进行提取研究,通过单因素实验和正交实验确定最佳提取方法及工艺条件。结果水提紫甘薯色素废渣总黄酮最佳提取方法为微波萃取法,其最佳提取工艺:乙醇体积分数70%,提取时间4 min,微波功率708 W,料液比1:40。在此条件下累计6次提取结果得水提紫甘薯色素废渣中总黄酮含量为3

  13. Study on the extraction of anthocyanins from residue of water-extracting pigment of Ipamoea batatas L%水提紫甘薯色素废渣花色苷提取工艺研究

    Institute of Scientific and Technical Information of China (English)

    曲燊宇; 殷建忠; 王瑞欣; 吴志霜; 徐芳; 周建于; 王琦; 吴少雄; 李桑柔; 吴丽莎

    2014-01-01

    Objective The study on extracting the anthocyanins from residue of water-extracting pigment of Ipamoea batatas L. aims to provide the reference for the comprehensive development and utilization of residue of water-extracting pigment of Ipamoea batatas L.. Methods Traditional solution method, ultrasonic-assisted method and microwave-assisted method were adopted to extract anthocyanins from residue of water-extracting pigment of Ipamoea batatas L.. The best extraction method and process condition were determined by single factor experiment and orthogonal experiment. Results Microwave-assisted extraction were confirmed as the optimum method for extracting anthocyanins from residue of water-extracting pigment of Ipamoea batatas L.. The optimum extraction process was extracted for 4 min at microwave power 708 W by the ratio of material to liquid 1:20 in the pH 1.5 citric acid solution. Anthocyanins was extracted 6 times on this condition, and the total amount of anthocyanins in residue of water-extracting pigment of Ipamoea batatas L. was 178.33 mg/100 g. The best extraction times were 2 times. Conclusion The content of anthocyanins in residue of water-extracting pigment of Ipamoea batatas L. is higher and residue of water-extracting pigment of Ipamoea batatas L. could be applied in food industry, ecological animal feed production and other industries.%目的:研究水提紫甘薯色素废渣花色苷的提取工艺,旨在为紫甘薯废渣的综合开发利用提供参考依据。方法采用溶液浸提法、超声波辅助法、微波萃取法对水提紫甘薯色素废渣中的花色苷进行提取研究,通过单因素实验和正交实验确定最佳提取方法及工艺条件。结果水提紫甘薯色素废渣花色苷最佳提取方法为微波萃取法,其最佳提取工艺: pH 1.5柠檬酸溶液,料液比1:20,微波功率708 W,时间4 min。在此条件下累计提取6次并测得水提紫甘薯色素废渣中花色苷总量178.33 mg/100 g

  14. Efeito da substituição parcial da farinha de trigo por farinha de casca de batata (Solanum Tuberosum Lineu Effect of the partial replacement of wheat flour for potato skin flour (Solanum Tuberosum L.

    Directory of Open Access Journals (Sweden)

    Anderson Felicori Fernandes

    2008-12-01

    Full Text Available O aproveitamento dos subprodutos da agroindústria de alimentos diminui os custos da produção, aumenta o aproveitamento total do alimento e reduz o impacto que esses subprodutos podem causar ao serem descartados no ambiente. Dessa forma, alguns subprodutos da batata são aproveitados e transformados em ingredientes alimentícios, como é o caso da casca. Neste estudo utilizou-se a casca de batata para produção de farinha visando a sua utilização em produtos de panificação, sendo utilizadas as seguintes porcentagens na composição da farinha mista: 0-50-50%; 3-47-50%; 6-44-50%; 9-41-50% e 12-38-50% de farinha de casca de batata, farinha de trigo branca e farinha de trigo integral, respectivamente. Foram realizadas análises físico-químicas na farinha de casca de batata, análises físicas na farinha de casca, nas farinhas de trigo branca e integral e análises reológicas nas farinhas mistas. A farinha de casca de batata apresentou bons teores de fibras e minerais, e dentro deste último, destacam-se os teores de fósforo, cálcio e magnésio. Quanto à granulometria e à diferença de cor, as farinhas de casca de batata e a farinha de trigo integral apresentaram valores mais próximos uma da outra. À medida que se aumentou a substituição da farinha de trigo branca pela farinha de casca de batata, as análises reológicas indicaram uma queda na qualidade tecnológica das massas.Reusing some agro-industrial food by-products lower the production costs, increase efficient food utilization, and reduce the impact that these sub-products cause if discarded in the environment. Thus, some potato by-products are reused utilized and transformed into food ingredients, such as potato skin. In this study, potato skin was utilized for the production of flour to be used in bakery products. The following percentages were utilized in the composition of the mixed flour: 0-50-50%; 3-47-50%; 6-44-50%; 9-41-50%, and 12-38-50% of potato skin flour, white

  15. Protocolo para produção de material propagativo de batata em meio líquido Protocol for potato propagative material production in liquid medium

    Directory of Open Access Journals (Sweden)

    Jonny Everson Scherwinski Pereira

    2003-09-01

    Full Text Available Os meios semi-sólidos são os mais utilizados em trabalhos de micropropagação, mas há indícios de que o estado físico dos meios de cultura influencia a multiplicação dos cultivos. O objetivo deste trabalho foi estabelecer um protocolo para a multiplicação de material propagativo de batata em meio de cultura líquido. Explantes de batata da cultivar Eliza, com uma gema axilar, foram cultivados em seis diferentes meios de cultura, com (semi-sólido ou sem (líquido a adição do solidificante ágar. Após 21 dias de cultivo, o meio de cultura que proporcionou os melhores resultados para crescimento e taxa de multiplicação teve sua composição modificada com o objetivo de melhorar a eficiência de multiplicação de cinco cultivares em meio líquido. Foi também avaliada a necessidade de agitação dos cultivos em meio líquido. Houve ganho na eficiência de multiplicação in vitro da batata, quando se utiliza meio de cultura líquido. Os melhores resultados são obtidos quando o material é cultivado em meio constituído pelos sais de MS na concentração plena, acrescido de ácido pantotênico (5,0 mg L-1, tiamina (1,0 mg L-1, ácido giberélico (0,25 mg L-1 e sacarose (20 g L-1, sob agitação constante.Semi-solid media are more commonly used in studies of micropropagation, but the physical state of the culture media seems to influence the growth and multiplication rate of the cultivation. The objective of this work was to establish a protocol for in vitro multiplication of potato in liquid culture media. Potato explants, cultivar Eliza, with an axillary bud, were cultivated in six different culture media, with (semi-solid or without (liquid the addition of agar. After 21 days, the culture medium that provided the best results for growth and multiplication rate had the composition modified with the objective of improving the efficiency of in vitro multiplication of five cultivars in liquid medium. The need of agitation was also

  16. Yield of sweet potato fertilized with cattle manure and biofertilizer Produção da batata-doce adubada com esterco bovino e biofertilizante

    Directory of Open Access Journals (Sweden)

    Ademar P Oliveira

    2010-09-01

    Full Text Available In Northeastern Brazil, the sweet potato is cultivated in small farms, in a family farming systems, constituting themselves an alternative way for the generation of food, employment and income. This study aimed to assess the effect of cattle manure levels and biofertilizer concentrations on the sweet potato cultivar White Queen productivity. The experiment was carried out from March to September 2007 at the EMEPA Experimental Station in Lagoa Seca, Brazil. The experimental design was randomized blocks, in split split plot 6 x 4 x 2 + 1 scheme, with four replications. The plots consisted of cattle manure levels (0, 10, 20, 30, 40 and 50 t ha-1, the subplot of biofertilizer concentrations (0, 15, 30 and 45% and the sub subplots consisted of methods of biofertilizer application, to the soil or leaves. Also, there was an additional control treatment using N, P and K mineral fertilizer. Commercial and total root productivity was evaluated. The levels of 30.8 and 31.2 t ha-1 of cattle manure were responsible for the highest commercial and total sweet potato root productivity (17.4 and 13.1 t ha-1, respectively. Biofertilizer concentrations of 29 and 28%, applied to soil and to leaves provided, respectively, the greatest productivities of total roots (15.4 and 13.1 t ha-1, whereas concentrations of 30 and 27%, also applied to soil and leaves were responsible, respectively, for the highest commercial root productivity (11 and 9.7 t ha-1.Na região Nordeste do Brasil, a batata-doce é principalmente plantada por pequenos produtores em sistema de agricultura familiar, constituindo-se numa alternativa de alimentação e geração de emprego e renda. Este trabalho teve por objetivo avaliar o efeito das doses de esterco bovino e de concentrações de biofertilizante sobre a produtividade da batata-doce, cultivar Rainha Branca. O experimento foi conduzido no período de março a setembro de 2007 na Estação Experimental da EMEPA, em Lagoa Seca-PB, Brasil. O

  17. Respiratory activity and browning of minimally processed sweet potatoes Atividade respiratória e escurecimento de raízes de batata-doce minimamente processada

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    Celso L. Moretti

    2002-09-01

    Full Text Available Sweet potatoes (Ipomoea batatas L., 'Brazlândia Roxa', 'Brazlândia Branca' and 'Princesa' were harvested at optimum maturity to evaluate respiratory activity and browning susceptibility of minimally processed roots. After harvest, non-blemished roots were graded for size (18±2cm and diameter (5±1cm, and minimally processed inside a cold room. Processed roots were placed in sealed glass jars and stored at 3±0.5°C to evaluate respiratory activity during a 4-hour period or were packed in plastic films with partial vacuum to evaluate development of browning. Packages were stored under refrigerated conditions (3±0.5°C for 5 days. Daily, minimally processed roots were evaluated for browning according to a scale ranging from 0 (extremely browned to 5 (no browning and using an objective assay (absorbance at 340 nm. Minimally processed roots showed a pronounced increase in carbon dioxide evolution immediately after processing. 'Princesa' had the highest respiratory activity among the evaluated cultivars, being 40% higher two hours after processing than the other cultivars. 'Brazlândia Roxa' and 'Brazlândia Branca' were significantly less susceptible to browning compared to 'Princesa', which was rated as unacceptable for commercial use at the end of the storage period. 'Brazlândia Roxa' and 'Brazlândia Branca' were still marketable at the end of the storage period.Batata doce (Ipomoea batatas L., 'Brazlândia Roxa', 'Brazlândia Branca' e 'Princesa' foram colhidas no ponto ótimo de maturidade hortícola, com o objetivo de avaliar-se a atividade respiratória e a suscetibilidade ao escurecimento de raízes minimamente processadas. Após a colheita, raízes sem danos mecânicos aparentes foram selecionadas para tamanho (18±2cm e diâmetro (5±1cm e foram minimamente processadas no interior de uma câmara fria. As raízes minimamente processadas foram colocadas em frascos de vidro hermeticamente fechados e armazenados a 3±0,5°C para avaliar

  18. Aquecimento global: efeitos no crescimento, no desenvolvimento e na produtividade de batata Global warming: effects on growth, development, and yield of potato

    Directory of Open Access Journals (Sweden)

    Joelma Dutra Fagundes

    2010-06-01

    Full Text Available A concentração atmosférica dos gases do efeito estufa, principalmente o CO2, tem aumentado nas últimas décadas devido às atividades antrópicas. A concentração de CO2 aumentou de aproximadamente 280 partes por milhão por volume (ppmv no período pré-industrial para a atual concentração de 380 ppmv. Há registros que, durante o século XX, houve um aumento da temperatura média da superfície global de 0,6±(0,2°C, e projeções indicam um provável aumento de 1,1 a 6,4°C na temperatura média global até o final do século XXI, dependendo da região do planeta. O aumento da concentração de CO2 e da temperatura afeta diretamente processos fisiológicos, como fotossíntese e respiração das plantas, o que poderá alterar o desempenho das culturas, incluindo a batata. O objetivo desta revisão foi reunir informações da literatura sobre os possíveis efeitos do aumento na concentração de CO2 e da temperatura do ar no crescimento, no desenvolvimento e na produtividade da cultura de batata. O aumento do CO2, seguido de aumento na temperatura do ar, de maneira geral, resultará em menor crescimento, redução na duração do ciclo de desenvolvimento, menor produtividade e aumento da incidência de doenças da batata. Como estratégia para minimizar os efeitos de um possível aquecimento global sobre essa cultura, sugere-se que sejam desenvolvidas cultivares tolerantes a altas temperaturas, adaptadas as épocas de plantio em cada local, alteradas as práticas de manejo da cultura e até expandidas as áreas de cultivo para regiões mais frias.The concentration of atmospheric greenhouse gases, mainly the CO2, has increased in the last decades due to anthropogenic activities. The atmospheric CO2 concentration has increased from about 280 parts per million per volume (ppmv in the pre-industrial period to the currently 380ppmv concentration. There are reports that during the XX century global average temperature increased 0.6±(0.2

  19. Novos progenitores de batata imunes a PVY e PVX e resistentes à pinta-preta New potato progenitors immune to PVY and PVX, and resistant to early blight

    Directory of Open Access Journals (Sweden)

    Sieglinde Brune

    1999-07-01

    Full Text Available As viroses que ocorrem com muita frequência em plantas de batata no Brasil são responsáveis por queda na produtividade, principalmente quando provocados por uma combinação de vírus. Para PVY e PVX o tipo de resistência usada é a imunidade, controlada por genes simples e dominantes. A pinta-preta, causada pelo fungo Alternaria solani,é uma das principais doenças fúngicas da batata em condições de alta umidade e temperatura, podendo causar até 73% de perdas na produtividade. O uso da resistência genética é de grande interesse agronômico, uma vez que a eliminação ou redução do uso de agrotóxicos leva a menores custos de produção da lavoura, além de mitigar a poluição ambiental e os riscos ao ser humano. A Embrapa Hortaliças avalia anualmente, em seu programa de melhoramento da batata, a imunidade aos vírus PVY e PVX, a resistência à pinta-preta, além de observar as características agronômicas dos clones. Entre os genótipos avaliados em 1991 e 1992 destacaram-se os clones Embrapa/CIP-PP063 e Embrapa/CIP-PP084 com boas características agronômicas, imunidade a PVY e PVX e alto nível de resistência à pinta-preta. Ambos podem ser empregados como progenitores em programas de melhoramento que objetivem imunidade a esses vírus e resistência à pinta-preta. Os clones Embrapa/CIP-PP063 e o Embrapa/CIP-PP084 encontram-se à disposição de instituições interessadas em trabalhos cooperativos com a Embrapa Hortaliças, na forma de tubérculos ou plântulas in vitro.Viruses that occur frequently in potato crops in Brazil are responsible for crop yield losses, mainly when caused by a combination of viruses. For PVY and PVX the type of resistance used is immunity, controlled by single and dominant genes. Early blight caused by Alternaria solani is one of the most important potato diseases in Brazil, especially when high air humidity and warm weather conditions prevail. This disease can cause losses up to 73%. The use of

  20. In vitro organogenesis of zucchini squash cv. Caserta Organogênese in vitro de abobrinha-de-moita cv. Caserta

    Directory of Open Access Journals (Sweden)

    Liliane Cristina L Stipp

    2012-06-01

    Full Text Available A protocol for the in vitro culture of Cucurbita pepo cv. Caserta was studied, using a cotyledon segment with an attached hypocotyl fragment as an explant. First, to determine the optimal seedling age, explants were collected from 4 to 6-day-old in vitro germinated seedlings and cultured in MS basal medium supplemented with benzylaminopurine (BAP, 4.5 µM, under a 16-h photoperiod at 27ºC. Based on the results obtained, the explants collected from the 4-day-old seedlings were then cultured in MS basal medium supplemented with different concentrations of BAP (0, 1.1, 2.2, 3.3, 4.5, or 5.5 µM and incubated under a 16-h photoperiod at 27ºC. In vitro organogenesis was most efficient with explants collected from 4-day-old seedlings cultured in medium supplemented with 4.5 µM of BAP. After 4 weeks of incubation the development of adventitious buds at the cotyledon/hypocotyl junction could be observed. These buds were transferred to elongation and rooting medium and the developed plants were acclimatized to greenhouse conditions. The morphogenic process was characterized using light and scanning electron microscopy analyses to confirm the organogenesis. The results showed that this alternate explant is efficient for in vitro culture of zucchini squash cv. Caserta. The protocol will be further examined for future use in genetic transformation experiments in this species.O objetivo do trabalho foi estudar um protocolo para o cultivo in vitro de Cucurbita pepo cv. Caserta utilizando como explante um segmento de cotilédone associado a um fragmento do hipocótilo. Explantes foram coletados de plântulas germinadas in vitro com 4 a 6 dias de idade, cultivados em meio de cultura basal MS suplementado com benzilaminopurina (BAP, 4,5 µM, e incubados sob fotoperíodo de 16 h, a 27ºC. Com base nos resultados obtidos, explantes coletados de plântulas germinadas in vitro com 4 dias de idade foram cultivados em meio de cultura MS, suplementados com

  1. Death of pastures syndrome: tissue changes in Urochloa hybrida cv. Mulato II and Urochloa brizantha cv. Marandu

    Directory of Open Access Journals (Sweden)

    N. G. Ribeiro-Júnior

    Full Text Available Abstract The quality of forage production is a prerequisite to raising livestock. Therefore, income losses in this activity, primarily cattle raising, can result in the impossibility of economic activity. Through the qualitative and quantitative anatomical study of Urochloa hybrida cv. Mulato II and U. brizantha cv. Marandu, we searched for descriptions and compared changes in the individual vegetative body from populations with death syndrome pastures (DPS. Specimens were collected at different physiological stages from farms in northern Mato Grosso. After collection, the individuals were fixed in FAA50 and stored in 70% alcohol. Histological slides were prepared from the middle third of the sections of roots, rhizomes, and leaves, and the proportions and characteristics of tissues were evaluated in healthy, intermediate, and advanced stages of DPS. Changes were compared between cultivars. With the advancement of the syndrome, the following changes were observed: a more marked decrease in the length of roots in U. hybrida; disorganization of the cortical region of the roots and rhizome cultivars; fungal hyphae in roots and aerenchyma formation in U. hybrida; a decrease in sclerenchyma fiber proportions in roots and leaves; sclerification of the epidermis of U. brizantha rhizomes; and an increase in pericyclic fibers in U. hybrida. Furthermore, there was a decrease in the volume of epidermal cells of the abaxial face of the leaves of both cultivars, with a greater reduction in U. hybrida; a gradual decrease in thickness in the midrib of leaves similar to leaf mesophyll; conduction system obstructions; partial or total cell lysis in roots and rhizomes affected by the syndrome. Obstructions in sieve tube element and companion cells, and sometimes obstruction in xylem vessel elements. The evolution of DPS in cultivars was similar, but there were variations, arising probably from the physiological response to stress, such as aerenchyma formation in

  2. Architecture, algorithm and application of OpenCV VS%OpenCV VS架构、算法及应用

    Institute of Scientific and Technical Information of China (English)

    梁华; 李兴福

    2012-01-01

    Intel OpenCV VS (video surveillance) is an efficient and universal open source platform for video object detection, tracking and trajectory analysis. However research and application are rare due to lack of material about it. The architecture and algorithm of VS platform are dissected based on analysis of OpenCV VS source code. The algorithm description and corresponding interface are presented. A high-efficiency pedestrian statistics system based on OpenCV VS architecture is provided in this paper.%Intel OpenCV VS是OpenCV内嵌的一个高效、通用的视频目标检测、跟踪和轨迹分析的开源平台,但由于没有相关资料而缺少研究和应用.在深入挖掘OpenCV VS源码的基础上,剖析了该平台的整体架构和算法体系,给出了算法描述和相应接口.在此基础上,开发了一个基于OpenCV VS架构的稳定、高效的行人统计系统.

  3. Spray deposition and losses in potato as a function of air-assistance and sprayer boom angle Deposição e perdas na pulverização da batata em função da assistência de ar e angulação da barra pulverizadora

    Directory of Open Access Journals (Sweden)

    Fábio Scudeler

    2006-12-01

    Full Text Available Within the Brazilian agricultural scene, the potato crop plays a significant economic role. Modern equipment and the development of improved chemical product application techniques contribute toward the constant search for improved revenue from the potato as a crop. Field experiments were carried out in a random block design of a potato crop of the "Ágata" variety. The aim was to evaluate the effect of air assistance combined to different angles of spray application on the chemical deposition on the potato plant, as well as to assess spray losses to the soil. For this a sprayer with and without boom air assistance was used in the experiments. Boom angles of 0º, +30º and -30º were directed to a vertical position as well as forward and backward movements. The trial plants were sprayed at a volume rate of 400 L ha-1 using JA-4 hollow cone nozzles at 633 kPa and copper oxychloride as a tracer for the deposit evaluation. Trace deposits on both surfaces of leaflets were removed by washing with destilled water and were quantified by atomic absorption spectrophotometry. Spray losses were measured by placing plastic measuring collectors between rows. The deposit levels at different positions in the plant were analyzed by the Hotelling T² statistical test. Larger deposits were detected at both upper and lower positions of the plant when the spray boom was positioned at 0º and +30º in the presence of air assistance. The presence of air, in addition to the increasing spray deposits in the lower parts of the plant, helped to create greater distribution uniformity. Spray loss was below 4%.A cultura da batata possui grande expressão econômica dentro do cenário agrícola. Para isso, equipamentos e técnicas de aplicação de produtos fitossanitários vêm sendo desenvolvidos visando melhorar o rendimento econômico da cultura. Neste sentido, experimentos foram conduzidos no delineamento em blocos ao acaso na cultura da batata cv. Ágata. Objetivando

  4. Teor de açúcar em genótipos de batata (Solanum tuberosum L. Sugar content in potato (Solanum tuberosum L. genotypes

    Directory of Open Access Journals (Sweden)

    Arione da Silva Pereira

    1999-03-01

    Full Text Available O objetivo deste trabalho foi avaliar o teor de açúcares redutores e totais, em tubérculos de batata de germoplasma selecionado do programa de melhoramento da Embrapa Clima Temperado. Dezoito cultivares e clones, e duas cultivares de indústria (Atlantic e Bintje, testemunhas foram avaliadas neste estudo. O experimento foi conduzido no outono de 1994, em Pelotas, RS. A concentração de açúcares redutores nos tubérculos dos 20 genótipos variou de 0,21% a 1,71%. O clone C-1582-25-90 e a cultivar Cerrito Alegre apresentaram teores mais baixos de açúcares redutores do que as testemunhas, sem, no entanto, diferirem significativamente destas. Os outros clones e cultivares testados também não diferiram da Atlantic. Estes resultados indicam que no germoplasma da Embrapa Clima Temperado existem genótipos com teor de açúcares redutores semelhante ao dos genótipos utilizados pelas indústrias brasileiras de processamento de batata. Entretanto, nenhum deles apresenta baixo teor de açúcares redutores. A concentração de açúcares totais foi mais baixa nos tubérculos das cultivares Cristal e Macaca, e do clone C-1582-25-90, sem diferir significativamente das testemunhas.The objective of this work was to evaluate the reducing and total sugar content in potato tubers of selected germplasm of the Embrapa Clima Temperado breeding program. Eighteen cultivars and clones and two processing cultivars (Atlantic e Bintje, checks were evaluated in this study. The experiment was carried out during de fall season of 1994, in Pelotas, RS. The reducing sugar concentration in the tubers of the 20 genotypes varied from 0,21% to 1,71%. The clone C-1582-25-90 and the cultivar Cerrito Alegre had lower reducing sugar content than the check cultivars, however, without, differing significantly from them. The other tested clones and cultivars also did not differ from ‘Atlantic’. These results indicate that in the Embrapa Clima Temperado germplasm there are

  5. Tuberização e produtividade de batata-doce em função de datas de plantio em clima subtropical

    Directory of Open Access Journals (Sweden)

    Lígia Erpen

    2013-01-01

    Full Text Available O objetivo deste trabalho foi avaliar o efeito de datas de plantio no início de tuberização (IT e na produtividade de raízes tuberosas de batata-doce em clima subtropical. Um experimento de campo foi conduzido em Santa Maria, RS, Brasil, com quatro datas de plantio (25/8/2011; 21/11/2011; 3/1/2012 e 13/2/2012, para obter plantas crescendo em diferentes condições ambientais, principalmente de temperatura e fotoperíodo. A variedade usada foi a Princesa, na densidade de plantio de 25 mil plantas ha-1. O delineamento experimental utilizado foi o de blocos ao acaso com quatro repetições. Duas semanas após o plantio foram coletadas quatro plantas a cada dois dias para a determinação do IT. A colheita foi realizada em 15/5/2012. A duração das fases plantio a início de tuberização (PL-IT e início de tuberização a colheita (IT-CO foi expressa em dias do calendário civil e em soma térmica (ºC dia. As condições de temperatura e fotoperíodo modificaram a duração da fase PL-IT em cada data de plantio, indicando que fotoperíodos curtos e temperaturas mais altas aceleram o IT. A produtividade de raízes tuberosas foi maior quando o plantio foi realizado no final do inverno (25/8/2011, em decorrência da maior duração da fase IT-CO, que coincidiu com os períodos de alta incidência de radiação solar e temperaturas favoráveis ao crescimento e desenvolvimento da batata-doce.

  6. 美国紫薯试管苗微型繁殖的研究%Study on Micro Propagation of Tube Seedlings of the Ipomoea batatas

    Institute of Scientific and Technical Information of China (English)

    2013-01-01

    In order to meet the large needs for tube seedlings of Ipomoea batatas after heat treatment ,with the method of tissue culture and micro cutting ,the mini tender stem segments were used as material to do the re‐search on micro propagation of tube seedlings in vitro .The results demonstrated that in the media of 1/2MS+IAA 0 .2 mg・L‐1 +Sucrose 15 g・L‐1 ,one tube seedling ,which reproduced by mini tender stem segments with 2 growing points and 2 blades in vitro ,could breed more than two million tube seedlings each year ;with 2 points and 2 blades of micro cuttings to the seedbed propagation speed was increased by 1 .8 times .Colonization of the , Ipomoea batatas 48 .9% .%  为满足人们对经过热处理的美国紫薯试管苗种苗的大量需求,以微型嫩茎段为材料,采用组织培养和微型扦插的方法,进行了试管苗微型繁殖的研究。结果表明:在1/2MS+IAA0.2 mg・L‐1+蔗糖15 g・L‐1培养基上,以具有2个生长点和2个叶片的微型茎段繁殖试管苗,1株试管苗每年能繁殖200多万株试管苗;以具有2个生长点和2个叶片的苗微型茎段扦插到苗床上,其繁殖速度提高了1.8倍。定植的微型扦插试管苗生长较旺盛,美国紫薯的产量提高48.9%。

  7. Evaluación de la dinámica del crecimiento in vitro en callos de Ipomoea batatas

    Directory of Open Access Journals (Sweden)

    Orlando S. González Paneque

    2011-08-01

    Full Text Available Evaluation of the dynamics of the growth in vitro callus of Ipomoea batatas ResumenEl cultivo del boniato presenta una gran importancia, ya que se puede emplear en la alimentación humana y animal, así como en la industria; el mismo produce raíces reservantes de gran valor calórico y nutritivo con alto contenido de carbohidratos. Entre las raíces y tubérculos cultivados es el segundo en importancia y representa más del 80% de la producción mundial. El empleo de las técnicas in vitro constituye una poderosa herramienta en la explotación comercial, propiciando el empleo de la micropropagación en diferentes especies. Para desarrollar el presente trabajo se recolectaron raíces tuberosas pertenecientes al clon Inivit B 93-1. Se procedió a la formación de callos potencialmente embriogénicos, para lo cual se emplearon explantes de limbos foliares, desinfectados con hipoclorito de sodio (1% y sembrados en el medio de cultivo propuesto por Murashige y Skoog (1962, vitaminas MS (10,0 ml/l-1, mioinositol (100 mg/l-1, sacarosa (3%, gelrite (0,2%, 2,4-D (0,25-2,5 mg/l-1 y 6-BAP (0,25-1,0 mg/l-1, el pH fue ajustado a 5,8 ± 0,01 mantenidos en la oscuridad durante treinta días, lográndose los mejores resultados con el uso del 2,4-D (0,50 mg/l-1 y 6-BAP (0,25 mg/l-1, y en los mismos se evaluó la dinámica del crecimiento y se lograron los mejores resultados entre los 28 y 32 días después de la siembra, para lo cual los resultados obtenidos servirán de base a otros estudios y permitirán evaluar, controlar y desarrollar estrategias para la conservación y el uso de los recursos naturales, dando cumplimiento al objetivo referente a estudiar la dinámica del crecimiento en la formación de callos potencialmente embriogénicos en el cultivo del boniato. Palabras clave: boniato, cultivo in vitro, reguladores del crecimiento. Abstract The cultivation of the sweet potato presents a great importance, since you can use in the human feeding

  8. CV-Online tahab Londoni börsile / Annika Matson

    Index Scriptorium Estoniae

    Matson, Annika, 1976-

    2004-01-01

    Personaliotsinguga tegelev firma tahab tulevikus minna Londoni ja OMXi börsile. Diagramm: CV-Online Group loodab tänavu esmakordselt positiivse kulumieelse ärikasumi. Vt. samas: Üks CV-Online'i aktsionäridest on ka Google'i aktsionär; Väsinud ootamast esimest IPOt

  9. Data of evolutionary structure change: 1CV2A-2PSEA [Confc[Archive

    Lifescience Database Archive (English)

    Full Text Available 1CV2A-2PSEA 1CV2 2PSE A A ---------GA----KPFGEKKFIEIKGRRMAYIDEGTG...MPI-EWADFPEQDRDLFQAFRSQAGEELVLQDNVFVEQVLPGLILRPLSEAEMAAYREPFLAAGEARRPTLSWPRQIPIAGT-PADVVAIARDYAGWLSESP-IPKLF...tryChain> 2PSE A 2PSEA VAL CA 326 2PSE A 2PSEA...> 2PSE A 2PSEA

  10. PERUMUSAN STRATEGI BERSAING JAHE INSTAN PRODUK CV. INTRAFOOD SURAKARTA MENGGUNAKAN PERCEPTUAL MAPPING

    Directory of Open Access Journals (Sweden)

    Mohd. Harisudin

    2013-11-01

    Full Text Available Penelitian ini bertujuan untuk mengetahui posisi bersaing jahe instan produk CV. Intrafood dan strategi bersaing yang dapat direkomendasikan untuk meraih keberasilannya. Metode dasar yang digunakan adalah analisis deskriptif. Penentuan lokasi penelitian ditentukan dengan metode purposive, yaitu CV. Intrafood Surakarta. Jenis data yang digunakan dalam penelitian ini adalah data primer dan data sekunder. Metode analisis data menggunakan analisis Perceptual Mapping. Dari hasil penelitian diperoleh informasi bahwa jahe instan produk CV Intrafood berada pada peringkat ke-2 dari produk empat jahe instan yang diperbandingkan. Atribut yang dapat dijadikan kekuatan utama dalam meningkatkan pemasaran jahe instan produk CV. Intrafood adalah manfaat produk. Sisi yang paling lemah adalah atribut desain kemasan dan kinerja produk dalam kemasan. Abstract This study aims to determine the competitive position of the product instant ginger CV. Intrafood and competitive strategy can be recommended to achieve success. The basic method used is descriptive analysis. Determining the location of the study are determined by purposive method, namely CV. Intrafood Surakarta. Data used in this study is primary data and secondary data. Method analyzed using Perceptual Mapping. From the results of the study concluded that instant ginger of CV Intrafood product ranks second of four instant ginger products are compared. Attributes that can be used as a major force in improving product marketing instant ginger CV. Intrafood is the benefits of the product. The weakest side is the packaging design and performance attributes of the product in the packaging.

  11. CV-Online tahab Londoni börsile / Annika Matson

    Index Scriptorium Estoniae

    Matson, Annika, 1976-

    2004-01-01

    Personaliotsinguga tegelev firma tahab tulevikus minna Londoni ja OMXi börsile. Diagramm: CV-Online Group loodab tänavu esmakordselt positiivse kulumieelse ärikasumi. Vt. samas: Üks CV-Online'i aktsionäridest on ka Google'i aktsionär; Väsinud ootamast esimest IPOt

  12. Detoxification of microcystin-LR in water by Portulaca oleracea cv.

    Science.gov (United States)

    Isobe, Takatoshi; Okuhata, Hiroshi; Miyasaka, Hitoshi; Jeon, Bong-Seok; Park, Ho-Dong

    2014-03-01

    Microcystin-LR (0.02 μg/ml) in the hydroculture medium of Portulaca oleracea cv., became below the detection level (microcystin estimated with protein phosphatase inhibition assay, however, remained at 37% of the initial level, indicating that microcystin-LR was transformed by P. oleracea cv. into unknown compound(s) of lower toxicity.

  13. Fast RF-CV characterization through High-Speed 1-port S-Parameter measurements

    NARCIS (Netherlands)

    Herfst, Rodolf W.; Steeneken, Peter G.; Tiggelman, Mark P.J.; Stulemeijer, Jiri; Schmitz, Jurriaan

    2012-01-01

    We present a fast radio frequency–capacitancevoltage (RF-CV) method to measure the CV relation of an electronic device. The approach is more accurate, much faster, and more cost effective compared to the existing off-the-shelf solutions. Capacitances are determined using a single-frequency 1-port S-

  14. CV characteristics of polycrystalline sige films with low GE concentration

    Energy Technology Data Exchange (ETDEWEB)

    Teixeira, Ricardo Cotrin [School of Electrical and Computer Engineering (FEEC) and Center for Semiconductor Components(CCS), State University of Campinas - UNICAMP, Cidade Universitaria Zeferino Vaz, Rua Pandia Calogeras, 90, Caixa Postal 6061, CEP: 13083-870, Campinas-SP (Brazil); Doi, Ioshiaki [School of Electrical and Computer Engineering (FEEC) and Center for Semiconductor Components(CCS), State University of Campinas - UNICAMP, Cidade Universitaria Zeferino Vaz, Rua Pandia Calogeras, 90, Caixa Postal 6061, CEP: 13083-870, Campinas-SP (Brazil)]. E-mail: doi@led.unicamp.br; Diniz, Jose Alexandre [School of Electrical and Computer Engineering (FEEC) and Center for Semiconductor Components(CCS), State University of Campinas - UNICAMP, Cidade Universitaria Zeferino Vaz, Rua Pandia Calogeras, 90, Caixa Postal 6061, CEP: 13083-870, Campinas-SP (Brazil); Swart, Jacobus Willibrordus [School of Electrical and Computer Engineering (FEEC) and Center for Semiconductor Components(CCS), State University of Campinas - UNICAMP, Cidade Universitaria Zeferino Vaz, Rua Pandia Calogeras, 90, Caixa Postal 6061, CEP: 13083-870, Campinas-SP (Brazil); Pinto Zakia, Maria Beny [Center for Semiconductor Components (CCS), State University of Campinas (UNICAMP), Cidade Universitaria Zeferino Vaz, Rua Pandia Calogeras, 90, Caixa Postal 6061, CEP: 13083-870, Campinas-SP (Brazil)

    2006-12-15

    SiGe alloys are currently used for HBT and MOS as epitaxial layers for base or strained channel, respectively. In the poly phase, SiGe has been studied as a replacement for poly-Si in MOS gates due to its lower thermal budget and gate depletion and also due to the Workfunction Engineering for V {sub t} adjustments. However, for application to CMOS technology as poly-SiGe gates, others constrains emerge such as quality of the oxide interface and etch chemistry. For both applications, the Ge fraction normally lies between 20% and 40%. In this study, authors use a low Ge contents (1%) poly-SiGe thin films aiming for MOS gate electrode. The Ge fraction was determined by RBS analysis. 230 nm thick samples were deposited onto 10 nm thermally oxidized <1 0 0>, p-type Si substrates using silane and germane. Films were deposited in the temperature of 500 deg. C and total pressure of 667 Pa (5 Torr) by vertical LPCVD. The samples were doped using {sup 31}P{sup +} ion implantation from 5 x 10{sup 14} cm{sup -2} up to 2 x 10{sup 16} cm{sup -2} and annealed by RTP (40 s) from 500 deg. C up to 900 deg. C. R {sub s} values were obtained by 4-point probe technique and CV curves were extracted from nMOS capacitors with 200 {mu}m diameter. The same processing steps were used to fabricate similar poly-Si samples and capacitors for comparison. The poly-SiGe samples presented R {sub s} values one order of magnitude lower than poly-Si and CV analysis of nMOS capacitors showed very good characteristics. The 1% Ge in the alloy ensures a low thermal budget for the overall process. Although a relatively high annealing temperature (800 deg. C) must be used to reduce oxide charge and interface traps, the temperature is well below the necessary for poly-Si processing and can allow formation of the shallow junctions needed for next technological nodes.

  15. Rat and poultry feeding studies with soybean meal produced from imidazolinone-tolerant (CV127) soybeans.

    Science.gov (United States)

    He, Xiaoyun; de Brum, Paulo A R; Chukwudebe, Amechi; Privalle, Laura; Reed, Andrew; Wang, Yanqing; Zhou, Cui; Wang, Cuiyan; Lu, Jing; Huang, Kunlun; Contri, Daniela; Nakatani, Andreia; de Avila, Valdir S; Klein, Claudete H; de Lima, Gustavo J M M; Lipscomb, Elizabeth A

    2016-02-01

    The safety and nutritional properties of CV127 soybeans were evaluated in rat and broiler feeding studies. Some episodic differences were observed between rats fed CV127, Conquista, and the standard diet for the endpoints examined. None of these differences were considered treatment related, adverse, or biologically meaningful. In general, birds fed diets containing CV127, Conquista, or Monsoy 8001 showed no significant differences in growth and performance response variables. Chickens fed diets containing Coodetec 217 had lower body weight and weight gain for all developmental periods compared to CV127, but no significant differences were found in feed conversion for the two diets during any development period. The results of both feeding studies demonstrate that CV127 soybeans are as safe, wholesome, and nutritionally valuable as the other soybean meals tested, including those varieties for which histories of safe use have been established and well documented.

  16. MICROPROPAGAÇÃO DO KIWI CV. HAYWARD

    Directory of Open Access Journals (Sweden)

    SCALIZE FÁBIO EDUARDO

    2001-01-01

    Full Text Available O presente trabalho teve como objetivo desenvolver um protocolo para a obtenção de mudas de kiwi (Actinidia chinensis Planch, cv. Hayward, por meio do cultivo in vitro de cotilédones. Utilizou-se o meio de MURASHIGE & SKOOG (1962 -- MS, suplementado com dois tipos de auxina (AIA e AIB e uma citocinina (BAP. Foram verificados os efeitos de três doses de auxinas (0,125; 0,250 e 0,375 mg.L-1, combinadas com três doses de citocinina (0,5; 1,0 e 1,5 mg.L-1 na capacidade morfogênica dos explantes. Procedeu-se o estudo histológico dos órgãos das plântulas obtidas in vitro, e verificou-se, também, a capacidade de aclimatação das mudas ex vitro. A menor dose de AIB (0,125 mg.L-1, independentemente das doses de BAP, foi a mais eficaz na morfogênese dos explantes. Não foram verificadas alterações histológicas e anatômicas das plântulas obtidas in vitro. Aos três meses após o cultivo ex vitro dos explantes, verificou-se a sobrevivência de 88% das plantas transplantadas em condições de campo.

  17. Ultrastructure and germination of Vitis vinifera cv. Loureiro pollen.

    Science.gov (United States)

    Abreu, I; Costa, I; Oliveira, M; Cunha, M; de Castro, R

    2006-08-01

    The cultivar Loureiro of Vitis vinifera is one of the most economically important, recommended in almost the totality of the Região Demarcada dos Vinhos Verdes. In vineyards, the grape productivity of this cultivar is normal while in others it is extremely low. The aim of this work was to study the morphology and germination of Vitis vinifera cv. Loureiro pollen with high and low productivity. The pollen grain was examined under light, transmission and scanning electron microscopy. Typically V. vinifera pollen present three furrows but in the cultivar Loureiro we found tricolporated and acolporated (without furrows or pores) pollen grains. Both pollen types present generative and vegetative cells with the usual aspect and a dense cytoplasm rich in organelles. In the acolporated pollen a continuous exine layer and an irregular intine layer were observed. Differences were found in the starch accumulation, since only in tricolporated pollen abundant plastids filled with numerous starch granules were observed. To determine the causes of the low productivity of this cultivar we tested pollen viability by the fluorochromatic reaction and pollen germinability by in vitro assays. We observed that the acolporated pollen grain is viable, but no germination was recorded.

  18. EVALUASI SISTEM INFORMASI PERSEDIAAN PADA CV. SARANA TELEMAXINDO

    Directory of Open Access Journals (Sweden)

    Nelly Nelly

    2010-10-01

    Full Text Available Evaluation objectives of inventory information systems at CV. Facilities Telemaxindo was to evaluate the weaknesses of the implementation of internal control, as well as estimating and assessing possible risks that might arise. The research method used is literature study of reference books in the library, and field study consisted of observation, interviews with relevant parties, creating check lists, check the inventory information systems documentation, and testing of inventory application systems. The results are findings of control weaknesses in the implementation of security management, operational management control, boundary control, input control, and output control on the present inventory information system. These weaknesses could pose a risk and if not dealt soon it could hurt the company. The resulting conclusion of the security management control, boundary control, control input, and output control is not running well so that it needs to be improved in accordance with the recommendations, while operational management control has been running fairly well.Keywords: evaluation, information system, inventory

  19. An antifungal peptide from Phaseolus vulgaris cv. brown kidney bean

    Institute of Scientific and Technical Information of China (English)

    Yau Sang Chan; Jack Ho Wong; Evandro Fei Fang; Wen Liang Pan; Tzi Bun Ng

    2012-01-01

    A 5.4-kDa antifungal peptide,with an N-terminal sequence highly homologous to defensins and inhibitory activity against Mycosphaerella arachidicola (IC5o=3 μM),Setospaeria turcica and Bipolaris maydis,was isolated from the seeds of Phaseolus vulgaris cv.brown kidney bean.The peptide was purified by employing a protocol that entailed adsorption on Affi-gel blue gel and Mono S and finally gel filtration on Superdex 75.The antifungal activity of the peptide against M.arachidicola was stable in the pH range 3-12 and in the temperature range 0℃ to 80℃.There was a slight reduction of the antifungal activity at pH 2 and 13,and the activity was indiscernible at pH 0,1,and 14.The activity at 90℃ and 100℃ was slightly diminished.Deposition of Congo red at the hyphal tips of M.arachidicola was induced by the peptide indicating inhibition of hyphal growth.The lack of antiproliferative activity of brown kidney bean antifungal peptide toward tumor cells,in contrast to the presence of such activity of other antifungal peptides,indicates that different domains are responsible for the antifungal and antiproliferative activities.

  20. An antifungal peptide from Phaseolus vulgaris cv. brown kidney bean.

    Science.gov (United States)

    Chan, Yau Sang; Wong, Jack Ho; Fang, Evandro Fei; Pan, Wen Liang; Ng, Tzi Bun

    2012-04-01

    A 5.4-kDa antifungal peptide, with an N-terminal sequence highly homologous to defensins and inhibitory activity against Mycosphaerella arachidicola (IC(50)= 3 μM), Setospaeria turcica and Bipolaris maydis, was isolated from the seeds of Phaseolus vulgaris cv. brown kidney bean. The peptide was purified by employing a protocol that entailed adsorption on Affi-gel blue gel and Mono S and finally gel filtration on Superdex 75. The antifungal activity of the peptide against M. arachidicola was stable in the pH range 3-12 and in the temperature range 0°C to 80°C. There was a slight reduction of the antifungal activity at pH 2 and 13, and the activity was indiscernible at pH 0, 1, and 14. The activity at 90°C and 100°C was slightly diminished. Deposition of Congo red at the hyphal tips of M. arachidicola was induced by the peptide indicating inhibition of hyphal growth. The lack of antiproliferative activity of brown kidney bean antifungal peptide toward tumor cells, in contrast to the presence of such activity of other antifungal peptides, indicates that different domains are responsible for the antifungal and antiproliferative activities.

  1. Absolute properties of the spotted eclipsing binary star CV Bootis

    CERN Document Server

    Torres, Guillermo; Lacy, Claud H Sandberg

    2008-01-01

    We present new V-band differential brightness measurements as well as new radial-velocity measurements of the detached, circular, 0.84-day period, double-lined eclipsing binary system CV Boo. These data along with other observations from the literature are combined to derive improved absolute dimensions of the stars for the purpose of testing various aspects of theoretical modeling. Despite complications from intrinsic variability we detect in the system, and despite the rapid rotation of the components, we are able to determine the absolute masses and radii to better than 1.3% and 2%, respectively. We obtain M(A) = 1.032 +/- 0.013 M(Sun) and R(B) = 1.262 +/- 0.023 R(Sun) for the hotter, larger, and more massive primary (star A), and M(B) = 0.968 +/- 0.012 M(Sun) and R(B) = 1.173 +/- 0.023 R(Sun) for the secondary. The estimated effective temperatures are 5760 +/- 150 K and 5670 +/- 150 K. The intrinsic variability with a period about 1% shorter than the orbital period is interpreted as being due to modulatio...

  2. Future Objectives of Maintenance Management in the CV Group

    CERN Document Server

    Annila, L

    1999-01-01

    The ST/CV group has an extensive maintenance contract with a multinational consortium (Gematec-F/I/DE). Annually, the contract costs the group about 6 MCHF. Today the technical monitoring of the performance within the contract has become too irregular and different people's roles have not been sufficiently well defined. It has therefore been decided that all the technical, financial and performance-indicating data should be centrally co-ordinated within the group. The objective is to enable an efficient follow-up of the contract with a view to optimization. Another objective is to migrate to the new, more proficient version of the Computer Aided Maintenance Management (CAMM) software and learn to use it to its full potential. This means using its statistics and analysis features in addition to controlling the maintenance activities, spare-parts store, costs, etc. A further aim is to develop standards for the maintenance and the CAMM. This paper will discuss these objectives and the schedule for their implemen...

  3. Seven health physics calculator programs for the HP-41CV

    Energy Technology Data Exchange (ETDEWEB)

    Rittmann, P.D.

    1984-08-01

    Several user-oriented programs for the Hewlett-Packard HP-41CV are explained. The first program builds, stores, alters, and ages a list of radionuclides. This program only handles single- and double-decay chains. The second program performs convenient conversions for the six nuclides of concern in plutonium handling. The conversions are between mass, activity, and weight percents of the isotopes. The source can be aged and/or neutron generation rates can be computed. The third program is a timekeeping program that improves the process of manually estimating and tracking personnel exposure during high dose rate tasks by replacing the pencil, paper, and stopwatch method. This program requires a time module. The remaining four programs deal with computations of time-integrated air concentrations at various distances from an airborne release. Building wake effects, source depletion by ground deposition, and sector averaging can all be included in the final printout of the X/Q - Hanford and X/Q - Pasquill programs. The shorter versions of these, H/Q and P/Q, compute centerline or sector-averaged values and include a subroutine to facilitate dose estimation by entering dose factors and quantities released. The horizontal and vertical dispersion parameters in the Pasquill-Gifford programs were modeled with simple, two-parameter functions that agreed very well with the usual textbook graphs. 8 references, 7 appendices.

  4. Infrared small target detection technology based on OpenCV

    Science.gov (United States)

    Liu, Lei; Huang, Zhijian

    2013-09-01

    Accurate and fast detection of infrared (IR) dim target has very important meaning for infrared precise guidance, early warning, video surveillance, etc. In this paper, some basic principles and the implementing flow charts of a series of algorithms for target detection are described. These algorithms are traditional two-frame difference method, improved three-frame difference method, background estimate and frame difference fusion method, and building background with neighborhood mean method. On the foundation of above works, an infrared target detection software platform which is developed by OpenCV and MFC is introduced. Three kinds of tracking algorithms are integrated in this software. In order to explain the software clearly, the framework and the function are described in this paper. At last, the experiments are performed for some real-life IR images. The whole algorithm implementing processes and results are analyzed, and those algorithms for detection targets are evaluated from the two aspects of subjective and objective. The results prove that the proposed method has satisfying detection effectiveness and robustness. Meanwhile, it has high detection efficiency and can be used for real-time detection.

  5. A virtual computing infrastructure for TS-CV SCADA systems

    CERN Document Server

    Poulsen, S

    2008-01-01

    In modern data centres, it is an emerging trend to operate and manage computers as software components or logical resources and not as physical machines. This technique is known as â€ワvirtualisation” and the new computers are referred to as â€ワvirtual machines” (VMs). Multiple VMs can be consolidated on a single hardware platform and managed in ways that are not possible with physical machines. However, this is not yet widely practiced for control system deployment. In TS-CV, a collection of VMs or a â€ワvirtual infrastructure” is installed since 2005 for SCADA systems, PLC program development, and alarm transmission. This makes it possible to consolidate distributed, heterogeneous operating systems and applications on a limited number of standardised high-performance servers in the Central Control Room (CCR). More generally, virtualisation assists in offering continuous computing services for controls and maintaining performance and assuring quality. Implementing our systems in a vi...

  6. Antidiabetic and anticancer activities of Mangifera indica cv. Okrong leaves

    Science.gov (United States)

    Ganogpichayagrai, Aunyachulee; Palanuvej, Chanida; Ruangrungsi, Nijsiri

    2017-01-01

    Diabetes and cancer are a major global public health problem. Plant-derived agents with undesirable side-effects were required. This study aimed to evaluate antidiabetic and anticancer activities of the ethanolic leaf extract of Mangifera indica cv. Okrong and its active phytochemical compound, mangiferin. Antidiabetic activities against yeast α-glucosidase and rat intestinal α-glucosidase were determined using 1 mM of p-nitro phenyl-α-D-glucopyranoside as substrate. Inhibitory activity against porcine pancreatic α-amylase was performed using 1 mM of 2-chloro-4 nitrophenol-α-D-maltotroside-3 as substrate. Nitrophenol product was spectrophotometrically measured at 405 nm. Anticancer activity was evaluated against five human cancer cell lines compared to two human normal cell lines using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Mango leaf extract and mangiferin exhibited dose-dependent inhibition against yeast α-glucosidase with the IC50 of 0.0503 and 0.5813 mg/ml, respectively, against rat α-glucosidase with the IC50 of 1.4528 and 0.4333 mg/ml, respectively, compared to acarbose with the IC50 of 11.9285 and 0.4493 mg/ml, respectively. For anticancer activity, mango leaf extract, at ≥200 μg/ml showed cytotoxic potential against all tested cancer cell lines. In conclusion, mango leaf possessed antidiabetic and anticancer potential in vitro. PMID:28217550

  7. Antidiabetic and anticancer activities of Mangifera indica cv. Okrong leaves.

    Science.gov (United States)

    Ganogpichayagrai, Aunyachulee; Palanuvej, Chanida; Ruangrungsi, Nijsiri

    2017-01-01

    Diabetes and cancer are a major global public health problem. Plant-derived agents with undesirable side-effects were required. This study aimed to evaluate antidiabetic and anticancer activities of the ethanolic leaf extract of Mangifera indica cv. Okrong and its active phytochemical compound, mangiferin. Antidiabetic activities against yeast α-glucosidase and rat intestinal α-glucosidase were determined using 1 mM of p-nitro phenyl-α-D-glucopyranoside as substrate. Inhibitory activity against porcine pancreatic α-amylase was performed using 1 mM of 2-chloro-4 nitrophenol-α-D-maltotroside-3 as substrate. Nitrophenol product was spectrophotometrically measured at 405 nm. Anticancer activity was evaluated against five human cancer cell lines compared to two human normal cell lines using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Mango leaf extract and mangiferin exhibited dose-dependent inhibition against yeast α-glucosidase with the IC50 of 0.0503 and 0.5813 mg/ml, respectively, against rat α-glucosidase with the IC50 of 1.4528 and 0.4333 mg/ml, respectively, compared to acarbose with the IC50 of 11.9285 and 0.4493 mg/ml, respectively. For anticancer activity, mango leaf extract, at ≥200 μg/ml showed cytotoxic potential against all tested cancer cell lines. In conclusion, mango leaf possessed antidiabetic and anticancer potential in vitro.

  8. Antidiabetic and anticancer activities of Mangifera indica cv. Okrong leaves

    Directory of Open Access Journals (Sweden)

    Aunyachulee Ganogpichayagrai

    2017-01-01

    Full Text Available Diabetes and cancer are a major global public health problem. Plant-derived agents with undesirable side-effects were required. This study aimed to evaluate antidiabetic and anticancer activities of the ethanolic leaf extract of Mangifera indica cv. Okrong and its active phytochemical compound, mangiferin. Antidiabetic activities against yeast α-glucosidase and rat intestinal α-glucosidase were determined using 1 mM of p-nitrophenyl-α-D-glucopyranoside as substrate. Inhibitory activity against porcine pancreatic α-amylase was performed using 1 mM of 2-chloro-4 nitrophenol-α-D-maltotroside-3 as substrate. Nitrophenol product was spectrophotometrically measured at 405 nm. Anticancer activity was evaluated against five human cancer cell lines compared to two human normal cell lines using 3-(4,5-dimethylthiazol-2-yl-2,5-diphenyltetrazolium bromide assay. Mango leaf extract and mangiferin exhibited dose-dependent inhibition against yeast α-glucosidase with the IC 50 of 0.0503 and 0.5813 mg/ml, respectively, against rat α-glucosidase with the IC 50 of 1.4528 and 0.4333 mg/ml, respectively, compared to acarbose with the IC 50 of 11.9285 and 0.4493 mg/ml, respectively. For anticancer activity, mango leaf extract, at ≥200 μg/ml showed cytotoxic potential against all tested cancer cell lines. In conclusion, mango leaf possessed antidiabetic and anticancer potential in vitro.

  9. The early-type close binary CV Velorum revisited

    CERN Document Server

    Yakut, K; Morel, T; Morel, Th.

    2007-01-01

    Our goal was to improve the fundamental parameters of the massive close double-lined eclipsing B2.5V+B2.5V binary CV Velorum.We gathered new high-resolution echelle spectroscopy on 13 almost consecutive nights covering essentially two orbits. We computed a simultaneous solution to all the available high-quality radial-velocity and light data with the latest version of the Wilson-Deviney code. We obtained the following values for the physical parameters: $M_1 = 6.066(74) M_\\odot$, $M_2 = 5.972(70) M_\\odot$, $R_1 = 4.126(24) R_\\odot$, $R_2 = 3.908(27) R_\\odot$, $\\log L_1 = 3.20(5) L_\\odot$, and $\\log L_2 = 3.14(5) L_\\odot$. The quoted errors contain a realistic estimate of systematic uncertainties mainly stemming from the effective temperature estimation. We derived abundances for both components and found them to be compatible with those of B stars in the solar neighbourhood. We discovered low-amplitude periodic line-profile variations with the orbital frequency for both components. Their interpretation requir...

  10. Avaliação de acessos de batata-doce para resistência à broca-da-raiz, crisomelídeos e elaterídeos Screening of sweet potato accessions for resistance to the West Indian sweet potato weevil, chrysomelids and elaterids

    OpenAIRE

    Félix Humberto França; Patrícia Silva Ritschel

    2002-01-01

    Foram avaliados para resistência a danos causados por insetos nas folhas e raízes, no campo, 366 acessos do Banco Ativo de Germoplasma de batata-doce da Embrapa Hortaliças. Os insetos de interesse foram Diabrotica spp., Conoderus sp., Epitrix sp., e a broca-da-raiz da batata-doce, Euscepes postfasciatus. Considerando o estrato raízes, aproximadamente 21% dos acessos avaliados mostraram-se resistentes a crisomelídeos e elaterídeos, tendo sido identificados pelo menos sete clones melhores que a...

  11. Bioethanol production from sweet potato (Ipomoea batatas L. flour using co-culture of Trichoderma sp. and Saccharomyces cerevisiae in solid-state fermentation

    Directory of Open Access Journals (Sweden)

    Manas Ranjan Swain

    2013-04-01

    Full Text Available The aim of this work was to study the optimiation of co-culturing of Trichoderma sp. and Saccharomyces cerevisiae (1:4 ratio on sweet potato (Ipomoea batatas L. flour (SPF for the production of bio-ethanol in solid-state fermentation (SSF. Maximum ethanol (172 g/kg substrate was produced in a medium containing 80% moisture, ammonium sulphate 0.2%, pH 5.0, inoculuted with 10% inoculum size and fermented at 30ºC for 72h. .Concomitant with highest ethanol concentration, maximum ethanol productivity (2.8 g/kg substrate/h, microbial biomass (23×10(8 CFU/ g substrate, ethanol yield (47 g/100g sugar consumed and fermentation efficiency (72% were also obtained under these conditions. Cell interaction was observed familiar between the viable cells of Trichoderma sp. and S. cerevisiae when co-cultured. Ethanol production ability by the co-culture was 65 % higher than the single culture of S. cerevisiae from un-saccharified SPF.

  12. Antioxidant and Anti-inflammatory Effects of Yam (Dioscorea batatas Decne.) on Azoxymethane-induced Colonic Aberrant Crypt Foci in F344 Rats.

    Science.gov (United States)

    Son, In Suk; Lee, Jeong Soon; Lee, Ju Yeon; Kwon, Chong Suk

    2014-06-01

    Yam (Dioscorea batatas Decne.) has long been used as a health food and oriental folk medicine because of its nutritional fortification, tonic, anti-diarrheal, anti-inflammatory, antitussive, and expectorant effects. Reactive oxygen species (ROS), which are known to be implicated in a range of diseases, may be important progenitors of carcinogenesis. The aim of this study was to investigate the modulatory effect of yam on antioxidant status and inflammatory conditions during azoxymethane (AOM)-induced colon carcinogenesis in male F344 rats. We measured the formation of aberrant crypt foci (ACF), hemolysate antioxidant enzyme activities, colonic mucosal antioxidant enzyme gene expression, and colonic mucosal inflammatory mediator gene expression. The feeding of yam prior to carcinogenesis significantly inhibited AOM-induced colonic ACF formation. In yam-administered rats, erythrocyte levels of glutathione, glutathione peroxidase (GPx), and catalase were increased and colonic mucosal gene expression of Cu/Zn-superoxide dismutase (SOD), Mn-SOD, and GPx were up-regulated compared to the AOM group. Colonic mucosal gene expression of inflammatory mediators (i.e., nuclear factor kappaB, inducible nitric oxide synthase, cyclooxygenase-2, tumor necrosis factor alpha, and interleukin-1beta) was suppressed by the yam-supplemented diet. These results suggest that yam could be very useful for the prevention of colon cancer, as they enhance the antioxidant defense system and modulate inflammatory mediators.

  13. 甘薯过氧化物酶的特性和抑制作用研究%Characteristics and inhibition ofperoxidase from lpomoea batatas

    Institute of Scientific and Technical Information of China (English)

    高义霞; 周向军; 袁毅君; 张蓓蕾; 张继

    2011-01-01

    研究甘薯过氧化物酶最适温度、最适pH值、Km及Vmax,同时探讨了不同激活剂和抑制剂对甘薯过氧化物酶的作用.结果表明:甘薯过氧化物酶最适温度为60℃,最适PH值为6.5,Km=0.00315293mol/L,Vmax=857372U/(min·g).抑制作用强弱依次为VC >L-cys>NaHSO3>柠檬酸>EDTA,说明各抑制剂均具有一定的抑制作用.%The optimum temperature, optimum pH value, Km and Vmax of peroxidase (POD) from Ipomoea batatas were studied. The effects of different activators and inhibitors on the POD were discussed. The results showed that optimum temperature, optimum pH value, Kg, and Vax of the POD were 60℃, 6.5, 0.00315293mol/L and 857.572U/(min·g), respectively. The inhibition capacity order of inhibitors against the POD was: ascorbic acid>L-cysteine>sodium bisulfite>citric acid>EDTA, which indicated that all inhibitors had certain inhibition effects on the POD.

  14. Evaluación de la calidad del trabajo de aperos de labranza en la labor de surcado para el cultivo del boniato (Ipomoea batatas (Lam Poir

    Directory of Open Access Journals (Sweden)

    Alfonso Enrique Ortiz Rodríguez

    2011-01-01

    Full Text Available La investigación se desarrolló en la Unidad Básica de Producción Cooperativa (UBPC "El Palmar" perteneciente a la Empresa de Cultivos Varios "Paquito Rosales Benítez" de Veguitas, municipio Yara, provincia de Granma, en el período de diciembre de 2005 a enero de 2008 (tres campañas; con el objetivo de evaluar en la labor de surcado aperos de diferentes características constructivas para el cultivo del boniato (Ipomoea batatas (Lam Poir en un Fluvisol, teniendo en cuenta el comportamiento de los índices de calidad de la labor. El Surcador Fertilizador IIMA-BALDAN 4 500 obtuvo el mejor resultado de las dimensiones del cantero con 98,3% y 100% de calidad en los valores del plato, ancho y altura, según las exigencias agrotécnicas del cultivo referidas por el Instituto de Investigaciones de Viandas Tropicales.

  15. Intake, growth and carcass yield of indigenous goats fed market wastes of sweet potato (Ipomoea batatas) vines and scarlet eggplant (Solanum aethiopicum).

    Science.gov (United States)

    Katongole, C B; Bareeba, F B; Sabiiti, E N; Ledin, I

    2009-12-01

    Intake, growth and carcass yield of indigenous goats fed basal diets of market wastes of sweet potato (Ipomoea batatas) vines (SPV) and scarlet eggplant (Solanum aethiopicum) (SEP) were examined in two experiments. In experiment I, the effect of presentation method (chopping, hanging or adding molasses) on the intake of SEP and SPV was evaluated. Presentation method did not influence the intake of SPV while hanging resulted in the highest (P goats were supplemented with a concentrate (25% cottonseed cake +75% maize bran) in four dietary groups: SEPD, SPVD, SEP+SPV and Control where elephant grass (Pennisetum purpureum) was offered as the roughage. SEP were offered by hanging, while SPV were chopped. The goats were slaughtered after 12 weeks of feeding. Goats in the SEPD group constantly lost weight, hence were not followed to the end. Average daily gain and hot carcass weight were highest (P goat meat production where standard feed resources are scarce when fed with an energy-protein concentrate. SEP are poorly consumed by goats, hence cannot be used as their sole basal feed.

  16. Avaliação de processos nas linhas de beneficiamento e classificação de batatas Process evaluation on potato packing lines

    Directory of Open Access Journals (Sweden)

    Marcos David Ferreira

    2007-06-01

    Full Text Available A batata é uma das principais hortaliças cultivadas no Brasil, sendo uma cultura de grande expressão econômica no estado de São Paulo. Após a colheita os tubérculos são submetidos aos processos de beneficiamento e classificação, sendo então destinados ao mercado consumidor. Neste trabalho realizou-se a descrição e a caracterização dos processos das unidades de beneficiamento e classificação de batatas por meio da identificação do material usado para a construção do maquinário, caracterização dimensional dos equipamentos, medidas de rotação de operação das esteiras de abastecimento e das classificadoras, determinação da velocidade de deslocamento e da rotação dos tubérculos e a produtividade dos operários. Determinou-se também os pontos críticos de impacto com queda durante o beneficiamento, utilizando-se a esfera instrumentada (70 mm, Techmark, Inc., Lansing, Michigan, Estados Unidos. Com esta, obtiveram-se dados de aceleração máxima (G e mudanças na velocidade (deltav. Este levantamento foi realizado em cinco unidades de beneficiamento e classificação para batatas localizadas no estado de São Paulo. Observou-se variação quanto ao comprimento do equipamento, atingindo 26,5%. Foi constatado também variação na vazão de água entre as unidades devido à diferença nos sistemas utilizados para a lavagem dos tubérculos, tendo os volumes oscilado de 15,4 a 168 mil litros por hora. As escovas mais utilizadas na etapa de lavagem eram compostas de cerdas com nylon cristal e fibra de coco, não sendo encontradas escovas compostas de origem animal. A rotação média para todas as unidades na etapa de lavagem foi de 157 rpm, porém verificou-se variação de 75% (112 a 196 rpm. Para a etapa de secagem, a rotação média foi de 122 rpm, tendo oscilado de 68 a 210 rpm. Os pontos das linhas de beneficiamento e classificação de batata demonstraram maior G nos pontos de transferência (entrada do lavador e

  17. STRATEGI PENGEMBANGAN USAHA SAPI POTONG (STUDI KASUS CV MITRA TANI FARM

    Directory of Open Access Journals (Sweden)

    Shally Alpriany Aisyah

    2014-09-01

    Full Text Available ABSTRACTThe purpose of this study were to 1 analyze the internal and external environmental conditions of CV Mitra Tani Farm, 2 identify and define strategies that affect the cattle breeding business development at CV Mitra Tani Farm, and 3 set the strategic priorities in the development of cattle breeding business in CV Mitra Tani Farm. Analysis strategies model (David, 2009 used were the analysis of the internal and external environment, strategy formulation and strategic priorities. At the stage of strategy formulation, SWOT 4 Quadrants were used. The results showed that the difference between the weighted scores of opportunities and threats as well as strengths and weaknesses is located in first quadrant of the SWOT 4 quadrant matrix. The first quadrant (growth quadrant has eight strategies, but only three can be applied appropriately. The results of the value of interest using quantitative strategic planning matrix strategy used is the market expansion strategy, then the strategy of product development, and concentric diversification strategy. Therefore, in carrying out market expansion strategy, CV Mitra Tani Farm needs to do breakthrough campaign. In product development strategy, preferably CV Mitra Tani Farm makes processed beef products which are unique and still rare in the market today.Keywords: strategy, business beef cattle, CV Mitra Tani Farm, SWOT 4K, QSPMABSTRAKTujuan penelitian ini yaitu 1 menganalisis kondisi lingkungan internal dan eksternal CV Mitra Tani Farm, 2 mengidentifikasi dan menetapkan strategi yang memengaruhi dalam pengembangan bisnis sapi potong di CV Mitra Tani Farm, dan 3 menetapkan prioritas strategi dalam pengembangan usaha peternakan sapi potong di CV Mitra Tani Farm. Model analisis strategi (David, 2009 yang digunakan yaitu analisis lingkungan internal dan eksternal, perumusan strategi dan prioritas strategi. Pada tahap perumusan strategi digunakan SWOT 4 Kuadran. Hasil penelitian menunjukkan bahwa selisih

  18. Variabilidade morfológica da coleção de germoplasma de batata-doce da Embrapa-Centro Nacional de Pesquisa de Hortaliças

    Directory of Open Access Journals (Sweden)

    Ritschel Patrícia Silva

    2002-01-01

    Full Text Available A coleção de germoplasma de batata-doce (Ipomoea batatas L., mantida pela Embrapa-Centro Nacional de Pesquisa de Hortaliças, foi reunida por meio de expedições de coleta e pela duplicação da coleção anteriormente mantida pela Embrapa-Centro Nacional de Pesquisa de Mandioca e Fruticultura. O objetivo deste trabalho foi descrever e analisar a variabilidade morfológica mantida nessa coleção. Foram avaliados 324 acessos nativos de batata-doce, utilizando-se 25 características morfológicas. Foi possível identificar 256 tipos morfológicos, sendo 223 acessos com morfologia única e 33 grupos de acessos morfologicamente duplicados. Cerca de 20% da coleção consistia de duplicações. Com base na estimativa da diversidade fenotípica mantida na coleção de cada descritor utilizado, considerou-se que a coleção apresenta um nível de polimorfismo alto. Os resultados obtidos foram discutidos em termos de sua utilização na organização da coleção, no planejamento da coleção in vitro dos campos de produção de sementes botânicas e das atividades de caracterização molecular, e no gerenciamento deste recurso genético em âmbito nacional.

  19. Expressão de caracteres de tubérculos em função do tamanho de recipiente usado no cultivo de batata na geração de plântulas

    Directory of Open Access Journals (Sweden)

    Mario Alvaro Aloisio Verissimo

    2012-12-01

    Full Text Available No melhoramento genético de batata, para alguns caracteres, é possível eliminar genótipos inferiores já nas gerações iniciais, o que permite reduzir o número de genótipos avaliados a campo, proporcionando redução de custos. O objetivo deste trabalho foi verificar a influência do tamanho de vaso na expressão de caracteres de tubérculo, em famílias de batata, na geração de plântula. Em casa de vegetação, dez famílias de batata foram avaliadas em dois tamanhos de recipientes, vaso grande (1 L e vaso pequeno (250 ml. Os caracteres de tubérculos avaliados foram: cor, aspereza, profundidade de olho, sobrancelha, formato, uniformidade de formato, apontamento, curvatura, achatamento, aparência geral, massa por planta, massa média e número de tubérculos. O vaso grande proporciona maior expressão da variação genética para os caracteres profundidade de olho, sobrancelha, curvatura, achatamento, aparência geral e todos os componentes de rendimento. As maiores médias de produção de tubérculos em número, tamanho e massa foram obtidas no vaso grande, enquanto o maior coeficiente de variação genético para os caracteres formato, uniformidade de formato e apontamento de tubérculo foi obtido no vaso pequeno.

  20. Optimization of Microwave-Assisted Extraction Technology of Flavonoids from Ipomoea batatas Leaves by Response Surface Methodology%甘薯叶黄酮微波提取工艺的响应面法优化

    Institute of Scientific and Technical Information of China (English)

    韦学丰; 罗静

    2013-01-01

    Response surface analysis was applied to optimize the microwave-assisted extraction conditions of flavonoids from Ipomoea batatas Lam leaves.The effects of microwave power,microwave time,ethanol volume fraction,liquid to solid ratio on the extraction yield of flavonoids were studied.And the extraction process was optimized by Box-Behnken design.The results showed that the optimum extraction conditions were microwave power,200 W; microwave time,4 min; volume fraction of ethanol,50%; and liquid to solid ratio 43:1 (V/m,mL:g).Under these conditions,the extraction yield of flavonoids of I.batatas leaves was 8.082 7%,which was accord with the predicted value(8.314 2%).%用响应面法优化甘薯(Ipomoea batatas)叶黄酮的微波提取工艺,研究了微波功率、微波时间、乙醇体积分数、液固比4个因素对黄酮提取率的影响.并采用Box-Behnken设计对最佳提取工艺进行了优化.结果表明,最佳工艺条件为微波功率200 W、微波时间4 min、乙醇体积分数50%、液固比43∶1(V/m,mL∶g),在此条件下甘薯叶黄酮的提取率为8.082 7%,与预测值8.314 2%基本吻合.

  1. High Frequency Plant Regeneration of Musa paradisiaca cv. Karibale Monthan

    Directory of Open Access Journals (Sweden)

    R. Shashi Kumar

    2015-06-01

    Full Text Available High frequency plant regeneration protocol has been standardized from banana cultivar Musa paradisiaca cv. Karibale Monthan, an endemic cultivar of Malnad region of Karnataka. The fruits are used as glomerular protective to solve kidney problems. To minimize the microbial contamination and to promote healthy growth, explants were treated with 70 % absolute alcohol for 6 min, 0.1 % Mercuric chloride for 10 min and 0.2 % for 10 min, 1 % Sodium hypochlorite for 15 min, 0.1 % Cefotaxime for 5 min and 0.05 % Gentamicin for 5 min. The high frequency shoot initiation (93.33 % was recorded at 5 mg/l BAP. The synergetic effect of BAP (4 to 6 mg/l, TDZ (0.1 to 1.2 mg/l and coconut water (0.1 to 0.9 ml/l induced multiple shoot buds and it was optimized at the concentration of 5 mg/l BAP, 0.5 mg/l TDZ and 0.5 ml/l coconut water with 15.90 ± 1.66 frequency of shoots per propagule. Supplementation of 1.0 mg/l IBA induced 5.33 ± 1.21 numbers of roots with a mean root length of 7.50 ± 1.87 roots. The 99% of plantlets with distinct roots and shoots were successfully acclimatized in the green house and transferred to the field to evaluate the agro-morphological variations. The weight of the bunch (kg, number of hands in a bunch, number of fingers in a hand, length of the finger (cm, girth of the finger (cm and girth of the pseudostem (cm exhibited by in vitro plants were higher than the in vivo plants.

  2. Identification de quelques contraintes à la production de manioc Manihot utilissima, de patate douce Ipomoea batatas et de pomme de terre Solanum tuberosum à l'Est du Zaïre

    Directory of Open Access Journals (Sweden)

    Ngoy Kadiebwe, N.

    1994-01-01

    Full Text Available Identification Of Some Constraints To The Production Of Tubers : Manihot utilissima, Ipomoea batatas and Solanum tuberosum In Eastern Zaire. An agricultural enquiry held to tubercular plants producers in radius of about 20 km to the Research Center has allowed to reveal some contraints related to the production of these speculations in order to pose certain investigations. The main contraints among them are utilization of too long cycle varieties with insufficient quality and quantity, ignorance of the selection production and conservation techniques without forgetting the difficultes of evacuating the production.

  3. CTAB methods for DNA extraction of sweetpotato for microsatellite analysis Métodos CTAB de extração de DNA para a análise de microssatélites em batata-doce

    Directory of Open Access Journals (Sweden)

    Aline Borges

    2009-08-01

    Full Text Available Microsatellite markers have proved to be useful in genetic diversity assessments of sweetpotato (Ipomoea batatas but practical DNA extraction methods to ensure good quality and quantity DNA for these studies are yet to be established. This study compares the efficiency of three modified methodologies for DNA extraction of six sweetpotato landraces using the CTAB extraction buffer in regard to quantity and purity of DNA quantification and microsatellite band patterns. All methodologies yielded satisfactory results, but the method based in leaf tissue macerated in liquid nitrogen was deemed more adequate because of its simplicity and lower cost. However, the method based in dry leaf tissue was considered more advantageous, first because elicits practicability in the plant acquisition and drying process, especially when the collection is performed in situ, and also because its simplicity makes possible the cold storage of the dry, ground samples for future DNA extractions.Os marcadores microssatélites são úteis para a análise da diversidade genética de variedades tradicionais de batata-doce (Ipomoea batatas. Para estes estudos, métodos práticos de extração de DNA precisam ser estabelecidos para assegurar uma boa qualidade e quantidade de DNA extraído. Assim, foi comparada a eficiência de três metodologias para extração de DNA usando o tampão de extração CTAB, todas com modificações. Para verificar a quantidade e pureza na quantificação de DNA, bem como o padrão de bandas de microssatélites para as três metodologias utilizaram-se seis etnovariedades de batata-doce. Os testes mostraram que as três metodologias apresentaram resultados satisfatórios. Uma das metodologias baseada em tecido foliar macerado em nitrogênio líquido mostrou-se a mais adequada devido à simplicidade e menor custo. Entretanto, o método baseado em tecido foliar seco foi o mais vantajoso devido à praticidade na aquisição da planta e no processo de

  4. Boron fertilization on sweet potato: effect of sources, rates and application formAdubação com boro em batata-doce: efeito das fontes, doses e modos de aplicação

    Directory of Open Access Journals (Sweden)

    José Eduardo Creste

    2011-12-01

    Full Text Available Boron (B fertilization can result in high yield and better sweet potato storage roots quality. However, there is few works about this subject. The objective was to evaluate the yield of sweet potato crops in response to B sources, rates and application form. The experimental design was complete randomized blocks, in factorial outline ((2x2x2+1, with three replications, which resulted of the combination of sources of B (boric acid and borax, application form (via soil and via foliar and doses of B (1 and 2 kg ha-1 and a control treatment (without B. There was no interaction between the factors studied for the commercial yield of sweet potato. No significant differences was found between B sources and application form, but they showed higher yield than the control treatment. Additionally, sweet potato yield increade with application of 2 kg ha-1 of B.A adubação boratada pode proporcionar aumentos na produtividade e na qualidade das raízes tuberosas de batata-doce, no entanto poucos trabalhos contemplam esse assunto. Objetivou-se avaliar a produtividade da cultura da batata-doce em resposta a fontes, doses e modos de aplicação de B. O delineamento experimental utilizado foi o de blocos casualizados, em esquema fatorial ((2x2x2+1, com três repetições. Os tratamentos foram aplicados em cobertura, sendo resultados da combinação de fontes de B (ácido bórico e bórax, formas de aplicação (via solo e via foliar e doses de B (1 e 2 kg ha-1 mais uma testemunha. Não houve interação entre os fatores estudados sobre a produtividade comercial de batata-doce. As formas de aplicação, via solo e via foliar bem como as fontes ácido bórico e bórax não apresentaram diferenças entre si, mas proporcionaram produtividades superiores ao tratamento sem B. A produtividade de batata-doce foi favorecida com a aplicação de 2 kg ha-1 de B.

  5. Análisis de mortalidad, producción y adaptabilidad de clones de batata al agrosistema de Piedemonte Llanero Analisys of mortality, production and adaptability of sweet potato clones to the Piedemonte Llanero agrosystem

    Directory of Open Access Journals (Sweden)

    Ruth Rodríguez Andrade

    Full Text Available La batata [Ipomoea batatas (L. Lam], es un tubérculo perenne, del cual se han realizado diversos experimentos y ensayos sobre su uso y adaptabilidad a diferentes agroecosistemas, con el fin de potenciar su producción en Colombia. El presente ensayo hace referencia a los resultados de investigación cualitativos y cuantitativos sobre adaptabilidad en el piedemonte llanero, teniendo en cuenta las variables mortalidad y producción, evaluada esta última en términos del rendimiento en t ha-1. El estudio se llevo acabo en 2008, se efectúo mediante análisis estadísticos con la finalidad de establecer la situación de mortalidad. En relación con la producción, su evaluación se llevó a cabo en el tiempo de cosecha, tomando en cuenta el efecto margen que se causa en las etapas del cultivo y los procedimientos estadísticos pertinentes. Se concluyó que los clones con mejor adaptabilidad, mayor rendimiento doble propósito, resistencia al ataque de diferentes microorganismos y efectos edafoclimáticos propios del agroecosistema, son: 440286, 440287 y 440396. De acuerdo con lo anterior, es posible incorporar la batata en la diversificación productiva del piedemonte llanero.The sweet potato [Ipomoea batatas (L. Lam], is a perennial tuber, on which, several studies and experiments have been conducted to analyze its adaptability and use in different agro ecosystems, in order to potentialize its production in Colombia. This work refers to the results from qualitative and quantitative investigations on its adaptability to the Piedemonte Llanero, considering the variables of mortality and production, the latter evaluated in terms of yield in t ha-1. The study was carried out in 2008, using statistical analysis to establish the crop's mortality situation. Production was evaluated in the time of harvest, considering the marginal effect caused in the stages of the crop, and the pertinent statistical procedures. The conclusion was that the clones with

  6. VARIABILIDADE GENÉTICA PARA TEOR DE AÇÚCARES REDUTORES EM BATATAS SILVESTRES QUE OCORREM NO SUL DO BRASIL GENETIC VARIABILITY FOR REDUCING SUGAR CONTENT IN WILD POTATOES THAT OCURR IN SOUTHERN BRAZIL

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    Carla Simone de Almeida Chalá

    2001-02-01

    Full Text Available Açúcares redutores e matéria seca são características muito importantes em batata para processamento. Duas espécies de batata silvestre, Solanum commersonii, subespécies commersonii e malmeanum, e S. chacoense, subespécie muelleri, ocorrem no Sul do Brasil. Essas espécies são importantes para programas de melhoramento, pois apresentam variabilidade para diversas características importantes, tais como, tolerância à seca e geada, resistências a doenças e insetos e teor de matéria seca. Os objetivos deste trabalho foram verificar a variabilidade genética e estimar a herdabilidade para teor de açúcares redutores em clones de batata silvestre, que ocorrem no Sul do Brasil. Cinqüenta clones de batata silvestre, tomados ao acaso, da coleção mantida na EMBRAPA - Clima Temperado foram cultivados, sob telado, no outono e na primavera de 1996. No outono, 30 e, na primavera, 40 clones produziram tubérculos para análise de açúcares redutores. Os teores de açúcares redutores dos tubérculos foram determinados pelo método de Lane Enyon e identificados pelo método de Somogyi, modificado por NELSON (1944. Os resultados indicaram que as espécies estudadas apresentam variabilidade para teor de açúcares redutores, com alta herdabilidade, principalmente no outono.Reducing sugar and dry matter are very important traits in potatoes for processing. Two wild potato species, Solanum commersonii, subspecies commersonii and malmeanum, and S. chacoense, subspecie mu, occur in the South of Brazil. These species are important for breeding programs, since they have variability for several important traits, such as drought and frost resistance, disease and insect resistance, and dry matter content.. The objectives of this research were to verify the genetic variability for reducing sugar content in wild potato clones of species that occur in this region and to estimate its heritability. Fifty wild potato clones, aleatorily chosen, of Embrapa

  7. The Research on High Yield Cultivation Technology of the High Starch Ipomoea Batatas Lam Based on Orthogonal Experiment%基于正交实验的高淀粉甘薯高产栽培技术研究

    Institute of Scientific and Technical Information of China (English)

    尤瑞玲; 李红忠; 史本林

    2012-01-01

    The ipomoea batatas lam is one of world staple food crops, also is the important industrial crop and the feed crops. In recent years, the domestic scholars have conducted the massive research to the high yield cultivation technique of the ipomoea batatas lam. In order to improve the yield of 'Shangshu 19', the article uses the orthogonal experiment method through combining the experiment, basing on the cultivation technology of ipomoea batatas lam in different transplanting time, planting density, ridge width, ridge height four factors. The article conducts the contrast experimental study for the ipomoea batatas lam, in order to select the best comprehensive technique measures and guide the field production. The results showed that, the five combinations got the highest yield. There were significant differences with other groups. The important cultivation and management measures were the timely plug, the proper ridge and the rational application of fertilizer.%甘薯是世界主要粮食作物之一,也是重要的工业原料作物和饲料作物.近年来,中国学者对甘薯高产栽培技术进行了大量研究.为了提高能源型‘商薯19’的产量,采用正交实验方法,通过对甘薯栽培技术中不同移栽时间、种植密度、起垄宽度、起垄高度4个因素进行组合试验,进行甘薯增产对比试验研究,以筛选出最佳综合配套技术措施方案,指导大田生产.结果表明:处理5组合的产量最高,与其他各组存在极显著差异.即适时早插,起垄适当,合理施肥是提高甘薯产量的重要栽培管理措施.

  8. 酶法制备紫红薯膳食纤维的工艺研究%Studies on the Preparation Technology of purple Ipomoea Batatas Dietary Fiber by Enzymatic Method

    Institute of Scientific and Technical Information of China (English)

    吴少福; 侯英梅; 上官新晨; 蒋艳; 沈勇根

    2011-01-01

    为了确定酶法制备紫红薯膳食纤维的最优工艺参数,提高产品纯度,以膳食纤维的膨胀力为指标,采用单因素和正交优化试验对酶法制备紫红薯膳食纤维的工艺进行研究.结果表明,将紫红薯渣按1:10(质量比)用水调成浆,糊化后冷却至75℃,按干薯渣的0.5%加入混合酶[m(淀粉酶):m(糖化酶)=7:3],保温处理150min;灭酶后降温至60℃,按原料的0.2%加入木瓜蛋白酶处理60min.样品的酸性洗涤膳食纤维含量达75.46%.该法为紫红薯膳食纤维的制备提供试验依据.%In order to confirm the optimum technologic parameter of purple Ipomoea Batatas dietary fiber prepared by enzymatic method, improving product purity. To make a target of the dietary fiber expansibility, the technology of purple Ipomoea Batatas dietary fiber enzymatic preparation had been researched with single-factor and orthogonal experiment. The results showed that: 1:10 proportion of purple Ipomoea Batatas dregs to water, mixing enzyme (α-amylase:glucoamylase,7:3) amount to dry basis 0.50%, temperature 75 ℃, time 150 min; after thermal inactivation, pawpaw protease amount to dry basis 0.20%, temperature 60 ℃, time 60min. The content of acid detergent DF in the sample reached to 75.46%. Therefore, this technology of enzymatic preparation may lay the foundation of processing for purple Ipomoea Batatas dietary fiber.

  9. Anthelmintic Activities of Aporphine from Nelumbo nucifera Gaertn. cv. Rosa-plena against Hymenolepis nana

    OpenAIRE

    Rong-Jyh Lin; Mei-Hsuan Wu; Yi-Hsuan Ma; Li-Yu Chung; Chung-Yi Chen; Chuan-Min Yen

    2014-01-01

    Nelumbo nucifera Gaertn. cv. Rosa-plena (Nelumbonaceae), commonly known as lotus, is a perennial aquatic plant grown and consumed throughout Asia. All parts of N. nucifera have been used for various medicinal purposes in oriental medicine. From the leaves of Nelumbo nucifera Gaertn. cv. Rosa-plena (an aquatic plant), liriodenine (1), lysicamine (2), (-)-anonaine (3), (-)-asimilobine (4), (-)-caaverine (5), (-)-N-methylasimilobine (6), (-)-nuciferine (7), (-)-nornuciferine (8), (-)-roemeri...

  10. Multiple formation mechanisms of ferrous olivine in CV carbonaceous chondrites during fluid-assisted metamorphism

    OpenAIRE

    Krot, Alexander N.; Petaev,Michail I.; Bland, Phil A.

    2004-01-01

    The CV carbonaceous chondrites experienced alteration that resulted in formation of secondary ferrous olivine (Fa40-100), salite-hedenbergite pyroxenes (Fs10-50Wo45-50), wollastonite, andradite, nepheline, sodalite, phyllosilicates, magnetite, Fe,Ni-sulfides and Ni-rich metal in their Ca,Al-rich inclusions, amoeboid olivine ag-gregates, chondrules, and matrices. It has previously been suggested that fibrous ferrous olivine in dark inclusions in CV chondrites formed by dehydration of phyllosil...

  11. Plug-in de procesado visual (OpenCV) en OpenDomo OS

    OpenAIRE

    Herrera Castro, Alexander

    2015-01-01

    Este proyecto consiste en el diseño y desarrollo de un plug-in que permita usar el sistema de procesado de imagen OpenCV desde el sistema operativo OpenDomo OS. Aquest projecte consisteix en el disseny i desenvolupament d'un plug-in que permeti utilitzar el sistema de processament d'imatge OpenCV des del sistema operatiu OpenDomo OS. Master thesis for the Free Software program.

  12. Biofuels from the Fresh Water Microalgae Chlorella vulgaris (FWM-CV for Diesel Engines

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    Saddam H. Al-lwayzy

    2014-03-01

    Full Text Available This work aims to investigate biofuels for diesel engines produced on a lab-scale from the fresh water microalgae Chlorella vulgaris (FWM-CV. The impact of growing conditions on the properties of biodiesel produced from FWM-CV was evaluated. The properties of FWM-CV biodiesel were found to be within the ASTM standards for biodiesel. Due to the limited amount of biodiesel produced on the lab-scale, the biomass of dry cells of FWM-CV was used to yield emulsified water fuel. The preparation of emulsion fuel with and without FWM-CV cells was conducted using ultrasound to overcome the problems of large size microalgae colonies and to form homogenized emulsions. The emulsified water fuels, prepared using ultrasound, were found to be stable and the size of FWM-CV colonies were effectively reduced to pass through the engine nozzle safely. Engine tests at 3670 rpm were conducted using three fuels: cottonseed biodiesel CS-B100, emulsified cottonseed biodiesel water fuel, water and emulsifier (CS-E20 and emulsified water containing FWM-CV cells CS-ME20. The results showed that the brake specific fuel consumption (BSFC was increased by about 41% when the engine was fueled with emulsified water fuels compared to CS-B100. The engine power, exhaust gas temperature, NOx and CO2 were significantly lower than that produced by CS-B100. The CS-ME20 produced higher power than CS-E20 due to the heating value improvement as a result of adding FWM-CV cells to the fuel.

  13. Anthelmintic Activities of Aporphine from Nelumbo nucifera Gaertn. cv. Rosa-plena against Hymenolepis nana

    OpenAIRE

    Lin, Rong-Jyh; Wu, Mei-Hsuan; Ma, Yi-Hsuan; Chung, Li-Yu; Chen, Chung-Yi; Yen, Chuan-Min

    2014-01-01

    Nelumbo nucifera Gaertn. cv. Rosa-plena (Nelumbonaceae), commonly known as lotus, is a perennial aquatic plant grown and consumed throughout Asia. All parts of N. nucifera have been used for various medicinal purposes in oriental medicine. From the leaves of Nelumbo nucifera Gaertn. cv. Rosa-plena (an aquatic plant), liriodenine (1), lysicamine (2), (-)-anonaine (3), (-)-asimilobine (4), (-)-caaverine (5), (-)-N-methylasimilobine (6), (-)-nuciferine (7), (-)-nornuciferine (8), (-)-roemerine (...

  14. Chamobtusin A, a novel skeleton diterpenoid alkaloid from Chamaecyparis obtusa cv. tetragon.

    Science.gov (United States)

    Zhang, Yu-Mei; Tan, Ning-Hua; Lu, Yang; Chang, Ying; Jia, Rui-Rui

    2007-10-25

    The novel diterpenoid alkaloid chamobtusin A (1) was isolated from the branches and leaves of Chamaecyparis obtusa cv. tetragon. Its structure and relative stereochemistry were mainly determined by MS, 2D NMR, and X-ray methods. The methanol extracts, total alkaloids of C. obtusa cv. tetragon, and chamobtusin A were tested for their cytotoxicities against A549 and K562 human tumor cell lines.

  15. Working with OpenCV and Intel Image Proccessing Libraries. Proccessing image data tools

    OpenAIRE

    Mora Lizán, Francisco José; Llorens Largo, Faraón; Pujol López, Mar; Rizo Aldeguer, Ramón; Villagrá Arnedo, Carlos

    2002-01-01

    We will provide an overview of Intel OpenCV and Image Processing Libraries. We present an application of real-time gesture recognition using the libraries (segmenting a foreground object, creating Motion History Image (MHI), updating the intensity gradients, and recovering directional motion information). Some times most companies spent a lot of time and money implementing those well-known techniques. OpenCV and IPL implement a huge amount of standard and advanced image processing techniqu...

  16. Levantamento da entomofauna associada a cultivares de batata em duas épocas de cultivo Survey of the entomofauna associated with potato varieties during two crop seasons

    Directory of Open Access Journals (Sweden)

    ANDERSON DIONEI GRÜTZMACHER

    2000-03-01

    Full Text Available Foi feito um levantamento da população de artrópodes num agroecossistema de batata, Solanum tuberosum L., em Santa Maria, RS, durante o ano agrícola 1989/90. O objetivo desta pesquisa foi comparar a entomofauna em diferentes cultivares de batata durante a época tradicional do seu crescimento e na safrinha. O experimento consistiu de nove cultivares durante a época tradicional, e de dez cultivares durante a safrinha. Amostras de insetos foram coletadas semanalmente com a rede de varredura (15 redadas por amostra. Os coleópteros foram predominantes durante a época tradicional do crescimento da cultura, e os dípteros, na safrinha. As espécies fitófagas mais freqüentes foram: Epitrix sp., na época tradicional, e Diabrotica speciosa (Germar, na safrinha, seguidas da Empoasca kraemeri Ross & Moore, em ambos os períodos de crescimento dessa cultura. Foi coletado um número maior de insetos no período tradicional de crescimento da cultura do que na safrinha. Os insetos mostraram preferência pela cultivar Bintje durante o período tradicional, e pela Pomina, na safrinha. A cultivar Sahael foi a menos procurada, nos dois períodos. As espécies de predadores Eriopis connexa (Germar e Geocoris sp. foram as mais numerosas no período tradicional de crescimento da cultura. Durante a safrinha, a Cycloneda sanguinea (L. predominou em todas as cultivares.A survey of arthropods present in a potato (Solanum tuberosum L. agroecossystem was conducted in Santa Maria, RS, Brazil, during 1989/90 field season. The objective of this research was to compare the entomofauna in different potato cultivars during the traditional and off-season time for potato growing. The experiment consisted of nine cultivars during the traditional season and ten cultivars during the off-season time. Insect samples were taken weekly with a sweep net (15 nets per sample. Coleoptera was the predominant insect order during the traditional potato growing season, and Diptera

  17. Molecular characterization of potato cultivars using SSR markers Caracterização molecular de cultivares de batata por marcadores SSR

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    Patrícia Favoretto

    2011-12-01

    Full Text Available The potato crop has a very narrow genetic base, so the use of molecular markers is a very important tool in the characterization of germplasm banks and evaluation of genetic divergence. The objective of this study was to identify, using microsatellite or simple sequence repeat (SSR markers, 38 accessions of potato from two collections of commercial cultivars. For the molecular characterization 10 loci were used, generating a total of 46 alleles, which were analyzed as binary data. A cluster analysis was performed with the Jaccard´s similarity coefficient and the UPGMA method, using the software NTSYSpc. On average, the number of alleles per locus was 4.6, ranging from two alleles for primers STM1049, STM 1053 and STM 1104 to 12 alleles per locus for primer STM0019a. Of the 46 alleles, only five were monomorphic, therefore presenting 89.1% polymorphism. The polymorphism information content (PIC varied from 0.13 to 0.86, with an average of 0.54. The Jaccard´s coefficient varied from 0.41 to 0.93, showing high genetic variability among accessions. Two possible duplicates [Atlantic (Canada and Atlantic (Chile, and Colorado and Ágata (EPAMIG (duplicates with these SSRs, which did not separate them] were identified. High similarity was also shown by cultivars Chipie and Melodie (EPAMIG, Voyager and Gourmandine (EPAMIG, Eole and Caesar (EPAMIG, and Cupido and Santé (Pirassu. The most genetically divergent accessions (Lady Rosetta and HPC-7B were also identified.A batata possui uma base genética estreita, sendo assim a utilização de marcadores moleculares é uma ferramenta muito importante no processo de caracterização de bancos de germoplasma e avaliação de divergência genética. O objetivo deste trabalho foi avaliar por meio de marcadores microssatélites ou Simple Sequence Repeats (SSR, 38 acessos de batata de duas coleções distintas contendo cultivares comerciais. Para a caracterização molecular foram analisados 10 loci, gerando um

  18. Potencial de clones elite de batata como novas cultivares para Minas Gerais Potential of elite potato clones as new cultivars for Minas Gerais State, Brazil

    Directory of Open Access Journals (Sweden)

    César ABP Pinto

    2010-12-01

    Full Text Available Historicamente a bataticultura brasileira tem utilizado cultivares desenvolvidas em países de clima temperado, principalmente da Europa, cultivares estas pouco adaptadas às nossas condições ambientais, principalmente ao fotoperíodo mais curto, temperaturas médias mais elevadas, solos mais pobres e maior pressão de patógenos e pragas. Objetivou-se avaliar clones avançados de batata obtidos pelo programa de melhoramento genético da Universidade Federal de Lavras (UFLA, mais resistentes às principais doenças, com ampla adaptação às várias épocas de plantio no sul de Minas Gerais e adequados ao mercado in natura ou ao processamento industrial. Foram realizados seis experimentos em quatro localidades no sul de Minas Gerais, nas safras da seca, de inverno e das águas. O delineamento experimental foi blocos casualizados com 26 tratamentos e três repetições, sendo utilizados 22 clones elites e quatro cultivares como testemunhas. Alguns clones apresentaram características de interesse para serem lançados como novas cultivares, podendo ser destinados aos diversos tipos de mercado. Os clones NES 1-08 e PRM 348 poderiam ser indicados ao mercado in natura, pois apresentaram boa aparência de tubérculos e aptidão para usos múltiplos (fritura, purês, cozimento, etc.. Já os clones CBM 9-10 e CBM 4-48 poderiam ser indicados para o processamento industrial na forma de pré-fritas congeladas, pois apresentaram alto peso específico, alta porcentagem de tubérculos graúdos e formato alongado. Os clones CBM 19-11 e CBM 16-16 poderiam ser indicados para o processamento industrial na forma de "chips" e/ou batata "palha", pois apresentaram formato arredondado e peso específico adequado.Potato cropping in Brazil has been using cultivars developed in temperate countries, especially from Europe. These cultivars are not completely adapted to the environmental Brazilian conditions, especially the shorter photoperiod, higher mean temperatures

  19. Desenvolvimento e rendimento de clones de batata na primavera e no outono Development and yield of potato clones during spring and autumn

    Directory of Open Access Journals (Sweden)

    Dilson Antônio Bisognin

    2008-06-01

    Full Text Available O objetivo deste trabalho foi avaliar os efeitos da radiação solar, da temperatura do ar e do fotoperíodo, no desenvolvimento e rendimento de clones de batata, cultivados em condições climáticas de primavera e outono. Foram avaliados os clones SMIJ461-1, SMINIA793101-3, SMINIA97145-2 e a cultivar Macaca, nos cultivos de primavera e outono, em Santa Maria, RS. Foram determinados: número de folhas no início da tuberização e no final, filocrono, soma térmica acumulada da emergência ao início da tuberização e do início da tuberização ao início da senescência, e rendimento. As condições de temperatura e fotoperíodo modificaram os valores de soma térmica acumulada nas fases emergência-início da tuberização e início da tuberização-início da senescência, o rendimento e o número de folhas no início da tuberização, porém, não afetaram o filocrono e o número de folhas final. A soma térmica acumulada necessária ao aparecimento de folhas variou entre os clones. A determinação do número de folhas no início da tuberização, na primavera e no outono, pode ser utilizada para a identificação de clones com potencial de cultivo, em ambas as estações. O desenvolvimento das plantas de batata é pouco afetado pelas condições de cultivo. A disponibilidade de radiação solar determina as diferenças de rendimento dos cultivos de primavera e outono, no Rio Grande do Sul.The objective of this work was to assess the effect of solar radiation, air temperature and photoperiod, in plant development and yield of potato clones grown under spring and autumn conditions. The clones SMIJ461-1, SMINIA793101-3, SMINIA97145-2 and the cultivar Macaca were cultivated during spring 2006 and autumn 2007, in Santa Maria, RS, Brazil. Leaf number at tuber initiation and at final tuberization, phylochron, accumulated thermal sum from emergence to tuber initiation and from tuber initiation to beginning of senescence, and yield were

  20. Technological quality and utilization of potato tubers Qualidade tecnológica e utilização de tubérculos de batata

    Directory of Open Access Journals (Sweden)

    José Carlos Feltran

    2004-12-01

    Full Text Available Increasing concerns have been verified with regard to the quality factor of potato tubers and their correct form of use and consumption. The purpose of this research was to determine the technological quality of potato tuber cultivars and identify the best forms of use and consumption. A completely randomized experimental design was adopted with 18 treatments represented by cultivars Agata, Apuã (IAC-5977, Aracy (IAC-2, IAC Aracy Ruiva, Asterix, Bintje, Dali, Clone IAC-6090, Itararé (IAC-5986, Laguna, Remarka, Liseta, Mondial, Novita, Oscar, Picasso, Santana, and Solide, with four replications. Specific gravity showed a positive correlation with starch content, texture, pulp pH, and soluble solids, and was negatively correlated with reducing sugars. The technological characteristics represented by specific gravity, dry matter content, texture, starch content, reducing sugars, pulp pH, titrable acidity, and soluble solids are influenced by genotype or cultivar. Cultivars Oscar, Itararé, IAC Aracy Ruiva, Clone IAC-6090, Aracy, Solide, Asterix, Santana, and Laguna were outstanding with best characteristics for frying, mashing and roasting. Mondial, Picasso, Novita, Dali, and Agata are appropriate for boiling, and more specifically for salads. In turn, potato cultivars Apuã, Remarka, Bintje, and Liseta are suitable for mashing and for roasting.Atualmente tem ocorrido crescente preocupação com o fator qualidade da batata e a forma correta de utilização para o consumo. O objetivo deste trabalho foi determinar a qualidade tecnológica dos tubérculos de cultivares de batata, visando identificar a melhor forma de utilização e consumo. O delineamento experimental foi inteiramente casualizado com 18 tratamentos, representados pelos cultivares Agata, Apuã (IAC-5977, Aracy (IAC-2, IAC Aracy Ruiva, Asterix, Bintje, Dali, Clone IAC-6090, Itararé (IAC-5986, Laguna, Remarka, Liseta, Mondial, Novita, Oscar, Picasso, Santana e Solide, com quatro

  1. Modeling the Galactic CV Distribution for the ChaMPlane Survey

    CERN Document Server

    Rogel, A B; Lugger, P M

    2007-01-01

    For purposes of designing targeted cataclysmic variable (CV) detection surveys and interpreting results of other projects with many CV detections such as the ChaMPlane Survey, we have created a model of the CV distribution in the Galaxy. It is modeled as a warped, flared exponential disk with a gaussian vertical distribution. Extinction is based on a detailed Galactic dust and gas model. A luminosity function for CVs is also incorporated, based on a smoothed version of published data. We calculate predicted field detection rates as a function of the limiting magnitude expected for the detecting system (i.e. WIYN/Hydra or NOAO 4m/Mosaic). Monte-Carlo techniques are used to assess statistical fluctuations in these rates. We have created maps of the expected CV distribution for the full non-bulge Galactic plane (20CV surveys. Assuming a CV distribution with a scale height of 160 pc, the ChaMPlane observational result of 5 CVs in 13 northern...

  2. Associação entre isoenzimas e matéria seca em batata silvestre Isoenzymes and dry matter content in wild potato

    Directory of Open Access Journals (Sweden)

    BEATRIZ HELENA GOMES ROCHA

    2000-12-01

    Full Text Available Clones de batata silvestre (Solanum spp. foram analisados quanto aos teores de matéria seca em tubérculos e isoenzimas de aspartato transaminase e isocitrato desidrogenase em folhas, com o objetivo de identificar associação entre estas características. Os resultados obtidos em uma amostra de 50 clones indicam grande variabilidade do teor de matéria seca. Clones de S. commersonii malmeanum apresentaram maior teor que os de S. commersonii commersonii, S. chacoense muelleri e de outros cuja espécie não foi identificada. Os padrões isoenzimáticos de folhas de 38 clones da amostra mostraram 15 variantes eletroforéticas de aspartato transaminase e sete de isocitrato desidrogenase. Comparações efetuadas através de tabelas de contingência 2 x 2, usando o teste de chi², com correção para continuidade, permitiram concluir que existe associação significativa entre o teor de matéria seca e as bandas de mobilidade relativa 1,00 de aspartato transaminase e de isocitrato desidrogenase.Wild potato clones (Solanum spp. were analysed for tuber dry matter content, leaf aspartate transaminase and leaf isocitrate dehydrogenase isoenzymes in order to identify association between these characteristics. The results indicate that there is great variability for dry matter content among 50 clones analysed. S. commersonii malmeanum clones had higher dry matter levels than S. commersonii commersonii, S. chacoense muelleri and the clones whose species were not identified. Fifteen aspartate transaminase and seven isocitrate dehydrogenase bands were observed in the gels of 38 clones. Tests of chi², using 2 x 2 contingency table, revealed a significant association between dry matter content and the bands of relative mobility 1.00 of both aspartate transaminase and isocitrate dehydrogenase isoenzymes.

  3. Segurança na aplicação de agrotóxicos em cultura de batata em regiões montahosas

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    Maurício Leite de Oliveira

    Full Text Available O presente estudo objetivou a quantificação das exposições na aplicação de agrotóxicos com o pulverizador convencional usado pelo produtor em cultura de batata em regiões montanhosas; a determinação das regiões do corpo dos trabalhadores mais expostas; a avaliação da eficiência de medidas de proteção individuais e coletivas; e a classificação das condições de trabalho quanto à segurança das recomendações de agrotóxicos registrados para o controle das principais pragas e doenças dessa cultura. Concluiu-se que a maior exposição ocupacional ocorreu na via dérmica; o trabalhador sofreu maior exposição com a utilização do pulverizador do produtor; o Knapik foi a medida de segurança coletiva mais eficiente no controle da exposição do trabalhador e a individual mais eficiente foi a Roupa Unesp; os membros inferiores foram as regiões do corpo mais exposta às caldas; sem a utilização das medidas de segurança, as 54 recomendações de agrotóxico para a essa cultura foram classificadas como inseguras para o trabalhador; todavia, com a utilização do protótipo de barra manual, apenas duas tornaram-se seguras; com o pulverizador Knapik, somente três; nove com o AZR; e dezesseis com a Roupa Unesp.

  4. Development and Identification of SSR Markers Associated with Starch Properties and β-Carotene Content in the Storage Root of Sweet Potato (Ipomoea batatas L.)

    Science.gov (United States)

    Zhang, Kai; Wu, Zhengdan; Tang, Daobin; Lv, Changwen; Luo, Kai; Zhao, Yong; Liu, Xun; Huang, Yuanxin; Wang, Jichun

    2016-01-01

    Sweet potato (Ipomoea batatas L.) is a nutritious food crop and, based on the high starch content of its storage root, a potential bioethanol feedstock. Enhancing the nutritional value and starch quantity of storage roots are important goals of sweet potato breeding programs aimed at developing improved varieties for direct consumption, processing, and industrial uses. However, developing improved lines of sweet potato is challenging due to the genetic complexity of this plant and the lack of genome information. Short sequence repeat (SSR) markers are powerful molecular tools for tracking important loci in crops and for molecular-based breeding strategies; however, few SSR markers and marker-trait associations have hitherto been identified in sweet potato. In this study, we identified 1824 SSRs by using a de novo assembly of publicly available ESTs and mRNAs in sweet potato, and designed 1476 primer pairs based on SSR-containing sequences. We mapped 214 pairs of primers in a natural population comprised of 239 germplasms, and identified 1278 alleles with an average of 5.972 alleles per locus and a major allele frequency of 0.7702. Population structure analysis revealed two subpopulations in this panel of germplasms, and phenotypic characterization demonstrated that this panel is suitable for association mapping of starch-related traits. We identified 32, 16, and 17 SSR markers associated with starch content, β-carotene content, and starch composition in the storage root, respectively, using association analysis and further evaluation of a subset of sweet potato genotypes with various characteristics. The SSR markers identified here can be used to select varieties with desired traits and to investigate the genetic mechanism underlying starch and carotenoid formation in the starchy roots of sweet potato. PMID:26973669

  5. 能源型甘薯高产栽培技术研究%Research on High Yield Cultivation Techology of Energy Type Ipomoea batatas

    Institute of Scientific and Technical Information of China (English)

    史本林; 尤瑞玲; 李红忠

    2012-01-01

    In order to improve the yield of Ipomoea batatas Lam., and provide technical support for large-scale production, orthogonal test was applied to study the effects of transplanting time, planting density, ridge width and ridging height on the yield of sweet potato. The result showed that the primary-secondary order of the influencing factors was transplanting time, planting density, ridge width, ridging height. The highest yield was obtained in the fifth combination (transplanting on 20th May, planting density of 4.5 ind./m2, ridge width of 70 cm, ridge height of 40 cm). Timely planting early, proper ridge form and rational fertilization are crucial cultivation and management measures.%为了提高甘薯产量,同时为大规模生产提供技术支持,选取甘薯栽培技术中的移栽时间、种植密度、起垄宽度、起垄高度4个因素,每个因素设3个水平进行正交试验研究.结果表明:各因素对产量指标影响的主次依次为移栽时间、种植密度、起垄宽度、起垄高度;各组合中以第5组合(5月20日移栽,种植密度300株/67 m2,起垄宽度70 cm,起垄高度40 cm)的产量最高.从试验结果来看,适时早插,起垄适当,合理施肥是提高甘薯产量的重要栽培管理措施.

  6. Capacidade de combinação de genitores de batata para caracteres de aparência e rendimento de tubérculos

    Directory of Open Access Journals (Sweden)

    Giovani Olegário da Silva

    2013-08-01

    Full Text Available O objetivo deste trabalho foi estimar as capacidades de combinação de genitores de batata, em gerações iniciais de seleção. Os experimentos foram realizados em Pelotas e Canoinhas. Foram estudadas 12 famílias, derivadas de dois grupos de genitores, cruzados em esquema dialelo parcial (3 x 4 'Eliza', 'C-1730-7-94' e 'C-1742-8-95'; 'Shepody', 'Asterix', 'White Lady' e 'Caesar'. As famílias foram avaliadas, na geração de plântula e na primeira geração de campo, para caracteres componentes de aparência e rendimento de tubérculos. Os dados foram submetidos às análises de variância e dialélica parcial. No conjunto de caracteres avaliados, verificou-se superioridade de efeitos significativos para a capacidade geral de combinação, em relação à capacidade específica de combinação, indicando predominância de efeitos aditivos dos genes, no controle dos caracteres. Em relação à capacidade geral de combinação, 'White Lady' é o genitor mais destacado positivamente, contribuindo com genes de ação aditiva para a melhoria, tanto dos caracteres que compõem a aparência dos tubérculos, quanto dos caracteres de rendimento. Quanto à capacidade específica de combinação, o cruzamento ('C1730-7-94' x 'White Lady' é o mais indicado para a geração de famílias superiores quanto a caracteres de aparência e a caracteres componentes do rendimento de tubérculos.

  7. Análise da Cadeia Produtiva de Batata Reno da Região do Vale do Zambeze (Moçambique: Governança e Coordenação

    Directory of Open Access Journals (Sweden)

    Júlio Ántónio

    2011-10-01

    Full Text Available O presente estudo tem como objetivo analisar a cadeia produtiva e as determinantes das estruturas de governança e a coordenação sistêmica dos agentes da cadeia produtiva de batata reno no Vale do Zambeze em Moçambique do Vale do Zambeze, em Moçambique (África. Com base na Teoria dos Custos de Transação, são discutidas as estratégias contratuais de suprimento das unidades de produção de batata e comercialização atacadista. Na primeira fase desenvolveu-se o modelo de análise das relações contratuais na cadeia produtiva entre os seus segmentos em seguida fez-se a análise das transações do segmento produtor e comerciante atacadista ambulante. Essas análises buscam entender os arranjos contratuais e as estruturas de governança desse elo. Conclui-se que as atacadistas e os produtores apresentam três distintas formas de governança - uma de mercado, e duas híbridas: contratos implícitos e parceria na produção.

  8. Produção de sementes pré-básicas de batata em sistemas hidropônicos Production of potato pre-basic seeds in hydroponic systems

    Directory of Open Access Journals (Sweden)

    Carlos Alberto B. Medeiros

    2002-03-01

    Full Text Available Os métodos convencionais de produção de sementes pré-básicas de batata apresentam como característica comum a reduzida eficiência, em razão dos baixos índices de multiplicação de tubérculos. A introdução de novos métodos de produção que propiciem maiores taxas de multiplicação podem contribuir para o aumento da disponibilidade de sementes de qualidade, e por conseqüência para a elevação da produtividade da cultura. Nesse trabalho são descritos dois sistemas hidropônicos, que pelos resultados obtidos, revelam sua viabilidade para a produção de sementes pré-básicas, com aumentos significativos nos índices de multiplicação, e que podem representar um importante avanço no processo produtivo de sementes de batata.The reduced tuber multiplication rate determines the low efficiency in the conventional methods of potato pre-basic seed production. New methods of seed production, with higher multiplication rates, may contribute to improve yield by increasing the availability of good quality seeds. This study describes two hydroponic systems, suitable for growing potato pre-basic seeds, which may represent an important step in the production process of potato seeds.

  9. Occurrence Regularity and Chemical Control of Weeds in Dioscorea batatas Field in Hubei Province%湖北省长山药田间杂草发生规律与化学防治

    Institute of Scientific and Technical Information of China (English)

    王鹏程; 张化平; 周利; 卢君; 朱家佩; 常红青

    2012-01-01

    The specie9 and occurrence regularity of the main weeds in Dioscorea batatas field in Hubei province were found out by fixed-spot and time field survey in the main long yam production area. The chemical weedicide test of were conducted accordingly to ensure the optimal time for chemical control of weed. Several chemical herbicide with low loxicity and short residual time suitable for application in long yam field.%通过对湖北省几个长山药(Dioscorea batatas Decne.)主产区进行定点、定时田间调查,基本上摸清了危害长山药的主要杂草种类及其发生规律,并有针对性地进行了化学除草试验,明确了化学除草的最佳时期,并筛选出了毒性低、残留时间短的几种适宜于长山药田间施用的化学除草剂.

  10. Associação de atmosfera modificada e antioxidantes reduz o escurecimento de batatas 'Ágata' minimamente processadas Association of modified atmospheres and antioxidants reduce browning of minimally processed potatoes

    Directory of Open Access Journals (Sweden)

    Lívia L.O. Pineli

    2005-12-01

    Full Text Available O escurecimento enzimático da batata minimamente processada reduz o valor comercial do produto. O objetivo deste trabalho foi avaliar alterações químicas e físicas em batatas 'Ágata' minimamente processadas embaladas sob atmosfera modificada em associação com antioxidantes. Batatas 'Ágata' foram minimamente processadas como mini batatas e tratadas por imersão em soluções antioxidantes de ácido cítrico a 2%, ácido eritórbico a 3%, combinação de ácido cítrico a 2% e ácido eritórbico a 3%, e combinação de ácido cítrico a 3% e ácido eritórbico a 5% embaladas em filmes de nylon multicamadas. Os três primeiros tratamentos foram embalados sob atmosfera modificada passiva enquanto no último tratamento aplicou-se atmosfera modificada ativa com 10% CO2, 2% O2, 88% N2. Observou-se que o tratamento com aplicação de antioxidantes em associação com atmosfera modificada ativa apresentou índice de escurecimento 24% menor e atividade enzimática da PPO e da POD 92% e 73% menor, respectivamente, que a média dos demais tratamentos no nono dia de observação. Houve elevação nos teores de vitamina C total, observado principalmente em tratamentos que utilizaram ácido eritrórbico. Observou-se uma correlação entre a degradação do amido e o aumento nos teores de açúcares solúveis totais e da vitamina C total em alguns tratamentos. O tratamento com aplicação de antioxidantes em associação com atmosfera modificada ativa foi o mais efetivo na manutenção dos atributos de qualidade de batatas minimamente processadas.Enzymatic browning of minimally processed potatoes reduces the final price of the product. The present work was carried out aiming to evaluate chemical and physical characteristics in fresh-cut 'Ágata' potatoes stored under modified atmospheres and treated with antioxidants. Potatoes 'Ágata' were minimally processed as baby potatoes and treated with antioxidants solutions as follows: citric acid (2

  11. Produtividade e valor nutritivo da Brachiaria brizantha cv. Marandu em um sistema silvipastoril Productivity and nutritional value of Brachiaria brizantha cv. Marandu in a silvopastoral system

    Directory of Open Access Journals (Sweden)

    L.F. Sousa

    2007-08-01

    Full Text Available O experimento foi realizado em sistema silvipastoril (Ssp localizado no bioma de Cerrado, no município de Lagoa Santa, Minas Gerais, no ano agrícola de 2004-2005. Avaliou-se a influência do Ssp composto pela arbórea bolsa-de-pastor (Zeyheria tuberculosa sobre os parâmetros produção, atributos morfogênicos, composição bromatológica e valor nutritivo da gramínea Brachiaria brizantha cv. Marandu, e os efeitos sobre as condições microclimáticas. O delineamento experimental foi em blocos ao acaso, com cinco blocos (épocas de corte, dois tratamentos (T1 - B. brizantha cv. Marandu sombreada com a Z. tuberculosa e T2 - B. brizantha cv. Marandu, a pleno sol e três repetições (parcelas. O sombreamento proporcionado pela Z. tuberculosa, apesar de reduzir a produção de matéria seca (MS da gramínea, favoreceu o aumento do teor de proteina bruta (PB e não alterou a produção de PB/ha e nem afetou a concentração de FDN. Os teores de FDA foram mais altos que os encontrados a pleno sol, o que provavelmente resultou em menor degradabilidade in vitro da MS e da matéria orgânica, não alterando a degradabilidade efetiva.The experiment was carried out in a Silvopastoral system (Sps located in Brazilian Savannah, Lagoa Santa county, Minas Gerais State, during the agricultural year of 2004-2005. It was studied the influence of Sps formed by "Bolsa de Pastor" (Zeyheria tuberculosa on the production, morphogenic attributes, bromatological composition and nutritional value of the graminaceous Brachiaria brizantha cv. Marandu as well as on the microclimatic aspects. The Sps was established in 1982, in a red-yellow latossol by the natural regeneration process. The experiment was based on a randomized block design, with 5 blocks (cutting times, 2 treatments (T1 - B. brizantha cv. Marandu shaded by Z. tuberculosa and T2 - B. brizantha cv. Marandu at open sky and three repetitions (plots. Although the DM production of the graminaceous in the Sps

  12. FORMULASI STRATEGI PENINGKATAN PRODUKSI DOMBA CV MITRA TANI FARM, CIAMPEA, BOGOR

    Directory of Open Access Journals (Sweden)

    Amalia Sholehana

    2014-04-01

    Full Text Available ABSTRACTThis research was conducted to formulate to increase the sheep production at CV Mitra Tani Farm (CV MT Farm, Ciampea, Bogor. The research was conducted using descriptive analysis by analyzing the problem experienced by CV. MitraTani Farm. Primary data and secondary data were gathered at this research. The research was also conducted using several analytical methods such as value chain mapping, internal factor evaluation (IFE and external factor evaluation (EFE matrix, SWOT and quantitative strategic planning matrix (QSPM. Based on the value chain analysis, the current production of sheep at CV MT farm is highly depending on the supply from its partners and internal farmers. According to the IFE and EFE results, the differences of each weighted values were respectively 2,120 and 0,686 so the position of the company in the SWOT matrix was situated at Quadrant I. Therefore the company needs to use a growth strategy. The QSPM sequenced the strategy priority as follow (1 increasing the number of lambs, (2 developing the management, (3 strengthening the capital and ownership, (4 improving the quality through technology. The result of the gross profit margin calculation, if the sheep‘s selling is increased up to 1000 sheep per month then the possible annual profit that can be earned by CV MT farm is 40,34% of the total production.Keywords: MT Farm, sheep production, strategies, SWOT, QSPM, gross profit marginABSTRAKPenelitian ini dilakukan untuk memformulasikan strategi peningkatan produksi domba di CV Mitra Tani Farm (CV MT Farm, Ciampea, Bogor. Pendekatan penelitian yang diterapkan adalah analisis deskriptif yang dilakukan dengan mempelajari permasalahan dari objek yang diteliti. Data yang dikumpulkan dalam penelitian ini adalah data primer dan data sekunder. Penelitian dilakukan menggunakan alat analisis berupa pemetaan rantai nilai,  matriks IFE (Internal Factor Evaluation dan EFE (External Factor Evaluation, SWOT, dan QSPM (Quantitative

  13. 53Mn-53Cr chronology of Ca-Fe silicates in CV3 chondrites

    Science.gov (United States)

    MacPherson, Glenn J.; Nagashima, Kazuhide; Krot, Alexander N.; Doyle, Patricia M.; Ivanova, Marina A.

    2017-03-01

    High precision secondary ion mass-spectrometry (SIMS) analyses of kirschsteinite (CaFeSiO4) in the reduced CV3 chondrites Vigarano and Efremovka yield well resolved 53Cr excesses that correlate with 55Mn/52Cr, demonstrating in situ decay of the extinct short-lived radionuclide 53Mn. To ensure proper correction for relative sensitivities between 55Mn+ and 52Cr+ ions, we synthesized kirschsteinite doped with Mn and Cr to measure the relative sensitivity factor. The inferred initial ratio (53Mn/55Mn)0 in chondritic kirschsteinite is (3.71 ± 0.50) × 10-6. When anchored to 53Mn-53Cr relative and U-corrected 207Pb-206Pb absolute ages of the D'Orbigny angrite, this ratio corresponds to kirschsteinite formation 3.2-0.7+08 Ma after CV Ca-, Al-rich inclusions. The kirschsteinite data are consistent within error with the data for aqueously-formed fayalite from the Asuka 881317 CV3 chondrite as reported by Doyle et al. (2015), supporting the idea that Ca-Fe silicates in CV3 chondrites are cogenetic with fayalite (and magnetite) and formed during metasomatic alteration on the CV3 parent body. Concentrically-zoned crystals of kirschsteinite and hedenbergite indicate that they initially formed as near end-member compositions that became more Mg-rich with time, possibly as a result of an increase in temperature.

  14. Enraizamento in vitro de pereira (Pyrus communis L. cv. Carrick In vitro rooting of pear tree (Pyrus communis L. cv. Carrick

    Directory of Open Access Journals (Sweden)

    Alan Cristiano Erig

    2004-02-01

    Full Text Available O objetivo do presente trabalho foi avaliar o efeito do ácido naftalenoacético (ANA e do carvão ativado no enraizamento in vitro de pereira (Pyrus comunis L. cv. Carrick. Para tanto, microestacas de pereira com aproximadamente 0,8 a 1cm de comprimento foram utilizadas como explantes. Os tratamentos constituíram-se de três concentração de ANA no meio de cultura (0; 3,2 e 6,4mM e de duas concentração de carvão ativado (0 e 1%. A partir dos resultados obtidos no experimento, conclui-se que o ANA nas concentrações de 3,2 e 6,4mM e na ausência de carvão ativado no meio de cultura, possibilitou um melhor enraizamento de pereira cv. Carrick.The aim of the present work was to evaluate the effects of naphthaleneacetic acid (NAA and activated charcoal on the in vitro rooting of the pear tree (Pyrus communis L. cv. Carrick. Therefore pear tree microshoots with approximately 0.8 to 1cm of length were used as explant. The treatments were constituted of three concentration of NAA in the culture medium (0; 3.2 and 6.4mM and two concentration of activated charcoal (0 and 1%. NAA in the concentration of 3.2 and 6.4mM and in the absence of activated charcoal in the culture medium, showed better rooting rate to pear tree cv. Carrick.

  15. Chlorophyll Fluorescence in Partially Defoliated Grape Plants (Vitis vinifera L. cv. Chardonnay) / Fluorescencia de la Clorofila en Plantas de Uva (Vitis vinifera L. cv. Chardonnay) Defoliadas Parcialmente

    OpenAIRE

    Peña Olmos Jaime Ernesto; Casierra Posada Fánor

    2013-01-01

    The chlorophyll content and fluorescence weredetermined in five-year-old grape plants (Vitis vinifera L. cv.Chardonnay) that were subjected to early partial defoliation,in Villa de Leyva, Colombia. The experimental design wascompletely randomized, consisting of two treatments (50%defoliation and control), each with four replications of 35 plants. Every two weeks, one of every two recently-emerged leaves was removed from the non-control plants. The determination of total chlorophyll content wa...

  16. IPR 82-Araucária, cultivar de batata para olericultura sustentável IPR 82-Araucária, potato cultivar for sustainable vegetable production

    Directory of Open Access Journals (Sweden)

    Carlos Alberto Scotti

    1999-11-01

    Full Text Available São apresentadas as principais características agroindustriais e morfológicas de uma nova cultivar de batata lançada pelo IAPAR, em parceria com a Embrapa Hortaliças, Brasília (DF e a Embrapa Semente Básica, Canoinhas (SC. "IPR 82-Araucária" foi selecionada de populações clonais introduzidas do CIP, Lima-Peru, por meio da Embrapa Hortaliças e avaliada nas Estações Experimentais do IAPAR desde 1984. A nova cultivar apresentou como fatores positivos alta produtividade comercial e resistência de campo à requeima, permitindo prever reduções em até 50% no uso de fungicidas para o controle da doença. A suscetibilidade à mancha chocolate e sarna comum evidenciaram a necessidade de manejo adequado de densidade e época de plantio, calagem e irrigação para minimizar os riscos de ocorrência dessas doenças. Com essas características, "IPR 82-Araucária" apresenta potencial para atender às demandas de produtores orgânicos e para produção em áreas de mananciais de água.The main agronomic, industrial, and morphological characteristics of a new Brazilian potato cultivar released by IAPAR, Embrapa Hortaliças, Brasília-DF and Embrapa Sementes Básicas, Canoinhas-SC are presented. "IPR 82-Araucária" has been selected from clonal populations derived from crosses done in CIP, Lima, Peru, and introduced for field evaluations in 1984. High yield and field resistance to late blight have been the main features of the new cultivar, allowing to predict reductions as much as 50% in fungicides applications. Susceptibility to internal brown necrosis and common scab requires special farmer's attention in respect of planting density, liming, and irrigation management to decrease risks of incidence of these diseases. "IPR 82-Araucária" is potentially suited for organic farming, and for growing in areas close to water resources.

  17. Produtividade de alface e qualidade de mudas de tomateiro com bioproduto de batata Lettuce productivity and quality of tomato seedlings with potato bioproduct

    Directory of Open Access Journals (Sweden)

    Diogo Vanderlei Schwertner

    2013-03-01

    Full Text Available O objetivo deste trabalho foi avaliar o efeito da aplicação de Acrescent Foliar®, proveniente da fermentação alcoolica de batata, na produtividade de alface e na qualidade de mudas de tomateiro. Foram conduzidos a campo dois experimentos com a cultura da alface, em delineamento blocos ao acaso com três repetições, e dois experimentos em ambiente protegido com mudas de tomateiro, em bandejas de poliestireno expandido de 128 células, em delineamento inteiramente casualizado com quatro repetições. Foram avaliados a fitomassa fresca e a fitomassa seca da parte aérea da alface, a altura da planta, o diâmetro do caule, o número de folhas, a fitomassa fresca de raiz, a fitomassa fresca de parte aérea, a fitomassa seca de parte aérea e a relação entre a fitomassa fresca de parte aérea e de raiz nas mudas de tomateiro. A adubação foliar com Acrescent Foliar® não influencia na produtividade da alface e confere às mudas de tomateiro características indesejáveis como redução da fitomassa fresca de raiz e aumento da relação entre a fitomassa fresca de parte aérea e de raiz.The aim of this work was to evaluate the effect of application of Acrescent Foliar® derived of alcoholic fermentation of potato, in lettuce productivity and in quality of tomato seedlings. Two experiments were conducted in field with lettuce crop in a randomized block design with three replications and, two experiments were conducted in greenhouse with production of tomato seedlings in polystyrene trays with 128 cells in a complete randomized design with four replications. It was measured the fresh and dry biomass of the shoot of lettuce, and the plant height, stem diameter, number of leaves, fresh biomass of roots and shoot, dry biomass of the shoot and, the relation between the fresh biomass of shoot and roots in tomato seedlings. The foliar fertilization with Acrescent Foliar® does not influence the lettuce productivity and it conferred undesirable

  18. Seleção de clones de batata-doce resistentes a insetos de solo Screening of sweet potato clones resistant to soil insects

    Directory of Open Access Journals (Sweden)

    José Ricardo Peixoto

    1999-03-01

    Full Text Available O objetivo deste trabalho foi selecionar clones comerciais de batata-doce para a região do Triângulo Mineiro. Dos clones avaliados, 60 foram obtidos por policruzamentos e cedidos pela Universidade Federal de Lavras (UFLA, três, entre produtores rurais dos municípios de Araguari, Uberlândia e Machado, todos do Estado de Minas Gerais, e outros nove foram usados como testemunhas (Brazlândia Branca, Brazlândia Rosada, Surpresa, Rio Doce, Morena Roxa, Coquinho, Arroba, Pira 1 e o Clone 042. O experimento foi instalado no espaçamento de 1,10 x 0,45 m, utilizando-se o delineamento blocos casualizados, com 72 tratamentos, quatro repetições e 16 plantas por parcela. Entre os clones avaliados 32,8% apresentaram alta ou moderada resistência a insetos de solo. O clone 95041 foi o mais produtivo, com 28.048,96 kg/ha. Os clones 95009, 95010, 95014, 95020, 95033, 95042 e 95057 foram altamente resistentes a insetos de solo.A research was carried out with the objective of selecting commercial clones for weather conditions of the Triângulo Mineiro, Minas Gerais State, Brazil. Sixty of the clones evaluated were obtained by polycross and given by the Universidade Federal de Lavras, three were from the farmers of the municipalities of Araguari, Uberlândia and Machado, located in Minas Gerais State, and nine clones were used as standards (Brazlândia Branca, Brazlândia Rosada, Surpresa, Rio Doce, Morena Roxa, Coquinho, Arroba, Pira 1 and Clone 042. The experiment was installed in a spacing of 1.10 x 0.45 m, using a randomized block design, with 72 treatments, four replicates and 16 plants per plot. Among the evaluated clones, 32.8% showed high or moderate resistance to soil insects. The clone with the highest yield was the clone number 95041, which produced 28,048.96 kg/ha. The others, 95009, 95010, 95014, 95020, 95033, 95042 and 95057 were highly resistant to soil insects.

  19. Variation Laws of Anthocyanin Content in Roots and Their Relationships with Major Economic Traits in Purple-Fleshed Sweetpotato [Ipomoea batatas (L.) Lam

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    Variation laws of anthocyanin content in root during the development and among the varieties, and their relationships with major economic traits in purple-fleshed sweetpotato [Ipomoea batatas (L.) Lam] were studied in the present article. The dynamics of 20 economic traits in 13 purple-fleshed sweetpotato varieties at 20, 40, 60, 80, 100, 120, and 140 d after their transplanting were investigated, and these traits included anthocyanin content in root, length of the longest vine, number of base branches, root number, dry matter contents in stem, foliage and root, fresh/dry weight of root, fresh/dry weight of stem, fresh/dry weight of foliage, fresh/dry weight of stem and foliage, fresh/dry weight of whole plant, and rations of photosynthate to root, stem, and foliage. The correlations between the variations of anthocyanin content and the other 19 economic traits among varieties and during the whole developing stages, and the correlations of daily increase of anthocyanin content with other 10 kinds of yields were analyzed. The results showed that: (1) During the whole development, the anthocyanin content had three variation types, I.e. A slow-increase type, a fluctuating-change type, and a devious- rising type, and had different responses to the growth of length of the longest vine, number of base branches, fresh/dry yield of root, and photosynthate allotments. (2) The anthocyanin contents among 13 varieties began to have significant difference after 20 d, and showed completed differentiation during 40-100 d, which had significantly negative correlationships with the number of base branches, fresh/dry yield of root, photosynthate allotment ratio to root, and had significant positive correlationships with dry matter content of root, length of the longest vine, fresh/dry yield of stem, dry yield of whole plant and photosynthate allotment ratio to foliage. (3) Because of the significantly negative correlation between daily increase of anthocyanin content and dry matter

  20. Traditional Chinese medicine herbal extracts of Cibotium barometz, Gentiana scabra, Dioscorea batatas, Cassia tora, and Taxillus chinensis inhibit SARS-CoV replication.

    Science.gov (United States)

    Wen, Chih-Chun; Shyur, Lie-Fen; Jan, Jia-Tsrong; Liang, Po-Huang; Kuo, Chih-Jung; Arulselvan, Palanisamy; Wu, Jin-Bin; Kuo, Sheng-Chu; Yang, Ning-Sun

    2011-10-01

    Development of anti-severe acute respiratory syndrome associated coronavirus (SARS-CoV) agents is pivotal to prevent the reemergence of the life-threatening disease, SARS. In this study, more than 200 extracts from Chinese medicinal herbs were evaluated for anti-SARS-CoV activities using a cell-based assay that measured SARS-CoV-induced cytopathogenic effect (CPE) in vitro on Vero E6 cells. Six herbal extracts, one each from Gentianae Radix ( lóng dǎn; the dried rhizome of Gentiana scabra), Dioscoreae Rhizoma ( shān yào; the tuber of Dioscorea batatas), Cassiae Semen ( jué míng zǐ; the dried seed of Cassia tora) and Loranthi Ramus ( sāng jì shēng; the dried stem, with leaf of Taxillus chinensis) (designated as GSH, DBM, CTH and TCH, respectively), and two from Rhizoma Cibotii ( gǒu jǐ; the dried rhizome of Cibotium barometz) (designated as CBE and CBM), were found to be potent inhibitors of SARS-CoV at concentrations between 25 and 200 μg/ml. The concentrations of the six extracts needed to inhibit 50% of Vero E6 cell proliferation (CC50) and 50% of viral replication (EC50) were determined. The resulting selective index values (SI = CC50/EC50) of the most effective extracts CBE, GSH, DBM, CTH and TCH were > 59.4, > 57.5, > 62.1, > 59.4, and > 92.9, respectively. Among these extracts, CBM and DBM also showed significant inhibition of SARS-CoV 3CL protease activity with IC50 values of 39 μg/ml and 44 μg/ml, respectively. Our findings suggest that these six herbal extracts may have potential as candidates for future development of anti-SARS therapeutics.AbbreviationsSARS,severe acute respiratory syndromeCoV,coronavirusCPE,cytopathogenic effectTCM,traditional Chinese medicine.

  1. Light equation in eclipsing binary CV Boo: third body candidate in elliptical orbit

    CERN Document Server

    Bogomazov, A I; Satovskii, B L; Krushevska, V N; Kuznyetsova, Yu G; Ehgamberdiev, Sh A; Karimov, R G; Khalikova, A V; Ibrahimov, M A; Irsmambetova, T R; Tutukov, A V

    2016-01-01

    A short period eclipsing binary star CV Boo is tested for the possible existence of additional bodies in the system with a help of the light equation method. We use data on the moments of minima from the literature as well as from our observations during 2014 May--July. A variation of the CV Boo's orbital period is found with a period of $\\approx 75$ d. This variation can be explained by the influence of a third star with a mass of $\\approx 0.4M_{\\odot}$ in an eccentric orbit with $e\\approx 0.9$. A possibility that the orbital period changes on long time scales is discussed. The suggested tertiary companion is near the chaotic zone around the central binary, so CV Boo represents an interesting example to test its dynamical evolution. A list of 14 minima moments of the binary obtained from our observations is presented.

  2. Sistema de previsão de ocorrência de requeima em clones de batata suscetíveis e resistentes Forecasting system of late blight occurrence in susceptible and resistant potato clones

    Directory of Open Access Journals (Sweden)

    Leosane Cristina Bosco

    2009-07-01

    Full Text Available Sistemas de previsão e cultivares resistentes à requeima são importantes ferramentas para reduzir a quantidade de fungicidas utilizados e os custos de produção da batata. O objetivo deste trabalho foi avaliar a utilização do sistema de previsão Blitecast e de clones suscetíveis e resistentes no manejo da requeima da cultura da batata na região produtora de Santa Maria, Rio Grande do Sul (RS. Os experimentos foram conduzidos na Universidade Federal de Santa Maria, na primavera de 2006 e no outono de 2007, sendo os dados meteorológicos medidos continuamente acima do dossel das plantas. Foram utilizados 10 tratamentos arranjados no delineamento inteiramente casualizado, com quatro repetições. Os tratamentos foram diferenciados pelos valores de severidade acumulados, calculados pelo sistema Blitecast, e pelos clones SMIJ461-1 e SMINIA793101-3, caracterizados como resistentes à requeima, e Macaca (suscetível. Verificou-se que o sistema Blitecast não foi eficiente para prever o momento de aplicação de fungicida no controle da requeima. Portanto, este deve sofrer ajustes para ser utilizado em clones suscetíveis. Nos clones considerados resistentes, a aplicação de fungicidas com base na utilização do sistema Blitecast não tem efeito sobre a severidade da requeima e a produtividade da cultura da batata.Forecasting systems and late blight resistant cultivars are important tools to reduce the amount of fungicides and the production cost of a potato farm. The objective of this study was to evaluate the Blitecast forecasting system for late blight occurrence and susceptible and resistant potato clones for managing late blight in Santa Maria, RS, Brazil. Experiments were conducted at the Federal University of Santa Maria during the Spring 2006 and Autumn 2007. Meteorological data were measured continuously above the crop canopy. Ten treatments were used in a completely randomized design, with four replications. Treatments were

  3. Produtividade e esverdeamento pós-colheita de tubérculos de cultivares de batata produzidos na safra de inverno Yield and postharvest greening of potato cultivars tubers produced in winter cropping season

    Directory of Open Access Journals (Sweden)

    Adalton Mazetti Fernandes

    2011-06-01

    Full Text Available Cultivares de batata com bom desempenho produtivo e cujos tubérculos sejam resistentes ao esverdeamento, são de grande importância econômica para o setor produtivo. Objetivou-se com esse trabalho avaliar a produtividade, a classificação, o teor de proteína e a resistência ao esverdeamento pós-colheita de tubérculos de cultivares de batata, produzidos na safra de inverno. O experimento foi conduzido durante a safra de inverno de 2008, no município de Itaí, SP. O delineamento experimental utilizado foi o de blocos casualizados, com quatro repetições. Os tratamentos consistiram de cinco cultivares de batata (Ágata, Asterix, Atlantic, Markies e Mondial. Foram avaliados: produtividade, classificação pelo diâmetro transversal, peso médio, teor de proteína e esverdeamento dos tubérculos. As cultivares Mondial, Asterix e Ágata apresentaram maior produtividade total e comercial de tubérculos. A cultivar Mondial apresentou maior produtividade de tubérculos graúdos. A cultivar Atlantic apresentou menor produtividade de tubérculos, porém, com alta porcentagem de tubérculos comercializáveis. As cultivares Markies, Atlantic e Asterix apresentaram maior teor de proteínas nos tubérculos. A cultivar Markies apresentou menor suscetibilidade ao esverdeamento na fase inicial de armazenamento. A cultivar Asterix apresentou maior intensidade de esverdeamento dos tubérculos.Potato cultivars with good production performance and with resistance to greening are of great economic importance to the productive sector. This study aimed to evaluate yield, classification, protein content and resistance to postharvest greening of potato tubers of different cultivars. The experiment was carried out during the winter cropping season of 2008 in Itaí, São Paulo State, Brazil. The experimental design was the completely randomized block with four replications. Treatments consisted of five potato cultivars (Ágata, Asterix, Atlantic, Markies and

  4. Qualidade físico-química e de fritura de tubérculos de cultivares de batata na safra de inverno Physicochemical and frying quality of potato cultivars in winter season

    Directory of Open Access Journals (Sweden)

    Adalton M Fernandes

    2010-09-01

    Full Text Available Com o aumento do consumo de batata processada na forma de fritura, torna-se essencial a identificação dos parâmetros de qualidade dos tubérculos de batata. Objetivou-se avaliar a composição físico-química e qualidade de fritura de tubérculos de cultivares de batata, produzidos na safra de inverno. Os tubérculos foram provenientes de experimento de campo conduzido durante a safra de inverno de 2008, no município de Itaí-SP. o delineamento experimental utilizado foi blocos casualizados, com quatro repetições e cinco tratamentos, representados pelas cultivares Agata, Asterix, Atlantic, Markies e Mondial. Os tubérculos das cultivares Mondial e Agata apresentaram características adequadas para o mercado fresco, sendo indicadas para a preparação de massas e pratos assados em que é essencial a manutenção de sua forma. Markies apresentou dupla aptidão culinária, ou seja, possui qualidade adequada ao preparo de massas e fritura. Os tubérculos das cultivares Atlantic, Asterix e Markies apresentaram boa qualidade de fritura, no entanto, a cultivar Markies apresentou polpa dos tubérculos, palitos e chips de coloração amarela mais intensa.Given the raising consumption of potato chips, the identification of quality parameters of potato tubers has become essential. The purpose of this work was to evaluate the physicochemical characteristics and frying quality of potato tubers of different cultivars grown in the winter cropping season. Tubers were obtained from a field experiment in the winter season in Itaí, São Paulo State, Brazil. The experimental design was of completely randomized blocks with four replications. Treatments consisted of five potato cultivars (Agata, Asterix, Atlantic, Markies and Mondial. Tubers of Mondial and Agata cultivars showed suitable characteristics for fresh market, so they can be recommended for the preparation of pasta and baked dishes, for which the preservation of the tuber shape is essential

  5. Khatyrka, a new CV3 find from the Koryak Mountains, Eastern Russia

    Science.gov (United States)

    MacPherson, Glenn J.; Andronicos, Christopher L.; Bindi, Luca; Distler, Vadim V.; Eddy, Michael P.; Eiler, John M.; Guan, Yunbin; Hollister, Lincoln S.; Kostin, Alexander; Kryachko, Valery; Steinhardt, William M.; Yudovskaya, Marina; Steinhardt, Paul J.

    2013-08-01

    A new meteorite find, named Khatyrka, was recovered from eastern Siberia as a result of a search for naturally occurring quasicrystals. The meteorite occurs as clastic grains within postglacial clay-rich layers along the banks of a small stream in the Koryak Mountains, Chukotka Autonomous Okrug of far eastern Russia. Some of the grains are clearly chondritic and contain Type IA porphyritic olivine chondrules enclosed in matrices that have the characteristic platy olivine texture, matrix olivine composition, and mineralogy (olivine, pentlandite, nickel-rich iron-nickel metal, nepheline, and calcic pyroxene [diopside-hedenbergite solid solution]) of oxidized-subgroup CV3 chondrites. A few grains are fine-grained spinel-rich calcium-aluminum-rich inclusions with mineral oxygen isotopic compositions again typical of such objects in CV3 chondrites. The chondritic and CAI grains contain small fragments of metallic copper-aluminum-iron alloys that include the quasicrystalline phase icosahedrite. One grain is an achondritic intergrowth of Cu-Al metal alloys and forsteritic olivine ± diopsidic pyroxene, both of which have meteoritic (CV3-like) oxygen isotopic compositions. Finally, some grains consist almost entirely of metallic alloys of aluminum + copper ± iron. The Cu-Al-Fe metal alloys and the alloy-bearing achondrite clast are interpreted to be an accretionary component of what otherwise is a fairly normal CV3 (oxidized) chondrite. This association of CV3 chondritic grains with metallic copper-aluminum alloys makes Khatyrka a unique meteorite, perhaps best described as a complex CV3 (ox) breccia.

  6. Auditory preattentive processing of Thai vowel change perception in consonant-vowel (CV syllables

    Directory of Open Access Journals (Sweden)

    Naiphinich Kotchabhakdi

    2004-11-01

    Full Text Available Event-related potential (ERP responses to infrequently presented spoken deviant syllables /pi/ among repetitive standard /pc/ syllables were recorded in Thai subjects who ignored these stimuli while reading books of their choices. The vowel across-category changes elicited a change-specific mismatch negativity response (MMN. The across-category change perception of vowels in consonant-vowel (CV syllables was also assessed using low- resolution electromagnetic tomography (LORETA. The LORETA-MMN generator appeared in the left auditory cortex, emphasizing the role of the left hemisphere in speech processing already at a preattentive processing level also in CV-syllables.

  7. Study of Antimicrobial and Cytotoxic Potential of the Oyster Mushroom Pleurotus ostreatus cv. Florida (Agaricomycetes).

    Science.gov (United States)

    Ganeshpurkar, Aditya; Bhadoriya, Santosh Singh; Pardhi, Priya; Jain, Alok Pal; Rai, Gopal

    2016-01-01

    This work was undertaken to evaluate in vitro antimicrobial and cytotoxic potential of Pleurotus ostreatus cv. Florida. Mushroom basidiocarps were extracted in water:ethanol (1:1, v/v), and the resulting extract was subjected to antimicrobial studies against Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Klebsiella oxytoca, Bacillus subtilis, and Candida albicans. Cytotoxic potential on viable human leukocytes was studied. In vitro results showed excellent antimicrobial and cytotoxic potentials of the mushroom extract. Thus, functional properties of P. ostreatus cv. Florida could be used in the search for novel therapeutics.

  8. Python y OpenCV aplicados a un caso de estudio real

    OpenAIRE

    García del Arco, José Antonio

    2015-01-01

    Este trabajo se centra en el uso del lenguaje Python y la librería OpenCV de visión por computador para el seguimiento de crustáceos marinos en condiciones experimentales y determinar su comportamiento en un entorno social. Aquest treball es centra en l'ús del llenguatge Python i la llibreria OpenCV de visió per computador per al seguiment de crustacis marins en condicions experimentals i determinar el seu comportament en un entorn social.

  9. Produtividade de genótipos de batata inglesa tolerantes ao calor em duas épocas de plantio, no vale do São Francisco Productivity of heat tolerant potato genotypes in two planting times in São Francisco Valley, Northeast of Brazil

    Directory of Open Access Journals (Sweden)

    José Egídio Flori

    2000-07-01

    Full Text Available Com o objetivo de avaliar diferentes genótipos de batata tolerantes ao calor em duas épocas de plantio (inverno e primavera, instalaram-se dois experimentos no Campo Experimental de Bebedouro da Embrapa Semi-Árido, Petrolina (PE. O delineamento experimental foi blocos ao acaso com quatro repetições, utilizando-se os genótipos LT-9, 301251-1, 311320-1, 301217-1, 301159-1, Serrana x DTO-33 e a variedade comercial Baraka como testemunha. Na condição de clima quente (média de 25,8°C, o genótipo LT-9 apresentou a maior produtividade comercial (10,3 t/ha, seguido pelos demais tratamentos que não mostraram diferenças estatísticas entre si, à exceção de Serrana x DTO-33 que apresentou a menor produtividade (2,7 t/ha. O cultivo na condição de clima mais frio (média de 24,7°C, a produtividade total variou de 17,5 t/ha a 23,3 t/ha, sendo que o genótipo 301251-1 alcançou a maior produtividade (23,3 t/ha, não se verificando diferença estatística entre os tratamentos. Pelos resultados preliminares obtidos há indicação que os genótipos 301251-1, 311320-1; 301217-1 e 301159-1 podem ser plantados de abril a agosto como alternativas de cultivo à cultivar Baraka, necessitando, porém, de maiores investigações.The experiments were carried out at the Bebedouro Experimental Field of Embrapa Semi-Àrid Research Center in Petrolina, Brazil, to evaluate different heat tolerant potato genotypes under two climatic conditions. The experimental design was of randomized complete blocks with seven genotypes (LT-9, 301251-1, 311320-1, 301217-1, 301159-1, Serrana x DTO-33 and cv. Baraka and four replications. Under hot climatic condition (28°C the genotype LT-9 showed the highest commercial yield (10.3 t/ha, followed by the other treatments that didn't show statistical differences in relation to each other, except the genotype Serrana x DTO-33 which showed the lowest commercial yield (2.7 t/ha. Under favorable condition (23°C, the commercial

  10. Collection and morphological characterization of sweet potato landraces in north of Rio de Janeiro state Coleta e caracterização morfológica de variedades locais de batata-doce no norte do Rio de Janeiro

    Directory of Open Access Journals (Sweden)

    Monique M Moulin

    2012-06-01

    Full Text Available The traditional farmers play an important role in plant genetic resources conservation. Collecting the germplasm maintained by these farmers is a very important action to avoid genetic variability losses. The goals of this work were to collect sweet potato from farms in the north of Rio de Janeiro state; to gather information regarding to the farmers profile, and to characterize the sweet potato landraces collected using morphological descriptors. Fifty three farms were visited in six collection expedition and 46 accessions were collected. During the visits the farmers were interviewed using a query with ten items. Six root traits and eight descriptors for vegetative parts were used for morphological characterization. The data were analyzed based on Cole-Rodgers distance and clustering was done with UPGMA method. Familiar agriculture with subsistence objective was observed and sweet potato was cultivated by 72% of the farmers at least for more than a decade, supporting the observation that this vegetable is traditionally cultivated in small areas in the specific region. The morphological characterization was efficient to detect genetic variability among accessions, revealing that traditional farmers from Campos dos Goytacazes and São João da Barra are responsible for sweet potato genotypes conservation with expressive genetic diversity in their properties. There was no relationship between genetic distance and collecting areas.Os agricultores tradicionais têm um papel fundamental na conservação dos recursos genéticos vegetais e a coleta de germoplasma mantido por esses produtores é muito importante para evitar a perda da variabilidade genética. Os objetivos deste trabalho foram coletar germoplasma de batata-doce em propriedades rurais situadas no norte do estado do Rio de Janeiro; levantar informações quanto ao perfil dos produtores rurais visitados durante as coletas, e caracterizar morfologicamente as variedades locais de batata

  11. Características da planta, teores de nitrogênio na folha e produtividade de tubérculos de cultivares de batata em função de doses de nitrogênio

    OpenAIRE

    2007-01-01

    O objetivo do trabalho foi avaliar o efeito de doses de nitrogênio (N) sobre a produtividade de tubérculos e sobre as seguintes variáveis determinadas na quarta folha de cultivares de batata (Solanum tuberosum): intensidade do verde (medida pelo índice SPAD e por tabela de cor), índices fisiológicos (área, comprimento, largura, número de folíolos e massa das matérias fresca e seca) e índices de N (teores de NO3 na seiva do pecíolo e de N na matéria seca). Foram realizados quatro experimentos,...

  12. Tuberização de dois cultivares de batata sob aplicação de sulfoniluréias Effect of sulfonylurea herbicides on tuberization of two potato cultivars

    Directory of Open Access Journals (Sweden)

    M.C.S.S. Novo

    2006-01-01

    Full Text Available A resposta de plantas de batata à simulação de contaminação de tanques de pulverizadores com sulfoniluréias foi avaliada em experimento em vasos, em Águas da PrataSP, 2004. O objetivo deste trabalho foi avaliar o efeito de subdoses de metsulfuron-methyl, nicosulfuron e sulfometuron-methyl em dois cultivares de batata quanto à produção e qualidade dos tubérculos. Metsulfuron-methyl, nicosulfuron e sulfometuron-methyl foram aplicados em pós-emergência em plantas de batata dos cultivares Atlantic e Lady Rosetta. As doses aplicadas foram correspondentes às recomendadas para solo argiloso x, 0,1x, 0,01x, 0,001x, 0,0001x, 0,00001x e 0, em que x foi considerada a dose recomendada de cada herbicida (g ha¹: para metsulfuron-methyl a 3, nicosulfuron a 60 e sulfometuron-methyl a 15. Por ocasião da colheita foram avaliados a massa fresca de raiz, o número e as massas frescas de tubérculos normais, anormais e da produção total. Nenhuma das doses provocou morte nas plantas de batata. As sulfoniluréias afetaram o desenvolvimento dos tubérculos e causaram anomalias, mas elas também foram dependentes do produto e das doses aplicadas. As perdas na produção de 'Atlantic' foram maiores que em 'Lady Rosetta' quando as plantas foram tratadas com metsulfuron-methyl. A produção de tubérculos de 'Lady Rosetta' foi mais sensível que a de 'Atlantic', quando tratadas com nicosulfuron e sulfometuron-methyl.Potato response to simulated tank contamination of three sulfonylurea herbicides was evaluated in a pot study in Águas da Prata, São Paulo, Brazil. The purpose of the trial was to study the effect of subdoses of the herbicides metsulfuron-methyl, nicosulfuron and sulfometuron-methyl on yield and tuber quality of two potato cultivars. Metsulfuron-methyl, nicosulfuron and sulfometuron-methyl were applied in post-emergence on 'Atlantic' and 'Lady Rosetta' cultivars at rates corresponding to 0, 0.00001, 0.0001, 0.001, 0.01, 0.1 and 1 times the

  13. Topdressing fertilization with nitrogen and potassium levels in sweet-potatoAdubação de cobertura na batata-doce com doses combinadas de nitrogênio e potássio

    Directory of Open Access Journals (Sweden)

    José Salvador Simoneti Foloni

    2013-03-01

    Full Text Available Balanced fertilizations with N and K often increase the performance of crops, however, when there is absence of one of these nutrients in poor soils, can reduce crop response to fertilization with the other. The objective of this work was to evaluate the productivity of sweet-potato, the amount of sweetpotato without quality, and leaf nutrients analysis, of sweet-potato crop fertilized with N and K. The trial was conducted in farming for commercial production, in Presidente Prudente, São Paulo State, during February-June 2007, in a dystrophic Ultisol of medium texture. The experimental design was a randomized complete block design, with four replications, on factorial 4 x 4: levels of 0, 30, 60 and 120 kg N ha-1 (urea source combined with levels of 0, 30, 60 and 120 kg K2O ha-1 (KCl source, applied to 39 days after planting of the crop. The sweet-potato is responsive to topdressing application with nitrogen and potassium, however, the greatest increases in productivity occur when doses of N and K are combined. Fertilization with N and K not increase the amount of sweet-potato without quality marketing. The highest increase in productivity of sweet-potato is reached with topdressing combined with 100 kg N ha-1 plus 120 kg K2O ha-1. A adubação balanceada de N e K frequentemente aumenta o desempenho das lavouras, contudo, a falta de um desses nutrientes em solos deficientes pode levar a decréscimos na resposta ao outro. O objetivo deste trabalho foi avaliar a produtividade de batata-doce comercializável, a quantidade de raízes tuberosas para descarte e a diagnose foliar de lavoura de batata-doce adubada com N e K. O experimento foi realizado em lavoura comercial, em Presidente Prudente-SP, de fevereiro a junho de 2007, em um Argissolo Vermelho distroférrico de textura média. O delineamento experimental foi em blocos completos casualizados, com quatro repetições, no esquema fatorial 4 x 4, com 0, 30, 60 e 120 kg ha-1 de N (uréia, em

  14. Analysis of SSR Information in EST Resource of Ipomoea batatas (L.) Lam.and Ipomoea nil (L.) Roth%甘薯与牵牛EST资源的SSR信息分析

    Institute of Scientific and Technical Information of China (English)

    兰孟焦; 吴问胜; 王瑞珍; 赵朝森; 赵现伟

    2013-01-01

    为挖掘番薯(Ipomoea)属EST-SSR资源,从NCBI数据库下载23406条甘薯(Ipomoea batatas(L.)Lam.) EST和62282条牵牛(Ipomoea nil(L.)Roth) EST,利用生物信息学软件预处理、去冗余、拼接后得到12812条无冗余的甘薯EST(6.70Mb)和28422条牵牛唯一序列(17.19 Mb).对这些序列进行SSR搜索,在甘薯上获得328个SSR位点,出现频率为2.56%;牵牛上筛选到962个SSR位点,出现频率为3.38%.甘薯和牵牛EST-SSR具有多个共同特征:在SSR位点中,主要是二核苷酸重复类型,其次是三核苷酸重复;在二核苷酸重复中,出现最多的重复基序为AG/CT,其次是AT/AT;在三核苷酸重复中,主要基序是AAG/CCT; SSR位点的长度主要集中在20~22 bp.结果表明,搜索出的EST-SSR重复基序类型丰富、多态性潜能高,具有较高的开发和利用价值.%To excavate the EST-SSR resourses of lpomoea,12812 non-redundant ESTs with the total length about 6.70 Mb were obtained by assembling 23406 ESTs from Ipomoea batatas (L.) Lam.in NCBI.With the same way,28422 unique sequences covering 17.19 Mb were generated from Ipomoea nil (L.) Roth.A total of 328 SSR loci for Ipomoea batatas with the the frequency of 2.56% and 962 SSR loci for Ipomoea nil with the frequency of 3.38% were identified by MISA.The EST-SSRs from Ipomoea batatas and Ipomoea nil had many common features.Among all the identified SSRs,dinucleotide repeats were dominant motifs and then were trinucleotide repeats.For dinucleotide repeats,AG/CT was the major motif,followed by AT/AT.And AAG/CCT was the most frequent motif among the trinucleotide repeats.The length of EST-SSRs was mainly distributed among 20-22 bp.The results indicated that these EST-SSRs with abundant repeat motif types and high potential polymorphism had high value for exploitation and utilization.

  15. Purification and Characterization of a Lectin from Variety of Ipomoea Batatas%甘薯品种岩8-6凝集素的分离纯化及其性质

    Institute of Scientific and Technical Information of China (English)

    林晓红; 余萍; 林少琴; 林曦

    2000-01-01

    甘薯品种岩8-6的叶片组织依次经硫酸铵分级沉淀、甲壳素亲和层析及Sephadex G-75分离纯化得到一种凝集素(Ipomoea Batatas Lectin,简称IBL).纯化的IBL电泳显示一条蛋白质着色带.IBL的亚基相对分子质量为47000.IBL对兔红细胞有凝集作用,凝血活性可被D-果糖明显抑制.IBL 对热不稳定,加热到70℃时,活性完全丧失.IBL对碱敏感.IBL含有16种氨基酸,富含Asp和Glu,中性糖含量为5.07%.

  16. 用2,4-D处理获得可育甘薯组种间杂种%Production of Fertile Interspecific Hybrids of Ipomoea Section batatas by 2,4-D Treatment

    Institute of Scientific and Technical Information of China (English)

    翟红; 刘庆昌

    2002-01-01

    用50mg/L 2,4-D处理杂交不亲和组合甘薯(Ipomoea batatas (L.)Lam.)品种徐薯18(2n=6x=90)×L.lacunosa(2n=2x=30)以及I.trifida(2n=4x=60)×L triloba(2n=2x=30)的母本花器,获得了可育种间杂种植株,并对种间杂种进行了过氧化物酶同工酶分析和细胞学观察.特别是徐薯18×I.lacunosa的杂种后代具有明显的结薯性,这是首次报道获得具有结薯性的甘薯品种和第Ⅱ群近缘野生种种间杂种.

  17. Variation of biometric parameters and C, N, and P concentrations of Oryza glumaepatula at different depths of an amazonian lake impacted by bauxite tailings (Lake Batata, Pará, Brazil

    Directory of Open Access Journals (Sweden)

    A. ENRICH-PRAST

    Full Text Available Lake Batata is a typical Amazonian clear water lake which has undergone anthropogenic impacts. Thirty percent of its total area has been covered with bauxite tailings. Thus, it is possible to distinguish two areas in this ecosystem: the impacted and the natural. The goal of this research was to study C, N, and P content variation and the values of biomass, length, density, and culm diameter of Oryza glumaepatula at different depths in the natural and impacted areas of Lake Batata. The results obtained in this research suggest that the availability of P and N, in both water and sediment, is lower at the shallow site when compared to the deeper sites. On the other hand, C concentrations decreased as P and N concentrations increased. This may be explained by the structural function of C in aquatic macrophytes. At shallower sites, due to the reduced water column, individuals invest in supporting structures that display high C concentrations. The higher density and biomass of O. glumaepatula at the intermediate site indicate that this area presents the best conditions for germination and establishment of individuals of this species. The chemical composition and biometric parameters of O. glumaepatula have shown that this population has higher spatial variation in the natural area. In the impacted area, the absence of significant variations in N and P concentrations in O. glumaepatula among the three sampled sites promotes higher homogeneity in the stands. The high C:P and N:P ratios indicate that, in the impacted area, P is more limiting to the development of O. glumaepatula than it is in the natural area. The reduced values of biomass and density of O. glumaepatula in the impacted area suggest that the bauxite tailings limit the development of this population.

  18. Lâminas de irrigação para produção de batata-semente em plântulas propagadas in vitro Water depths for production of potatos seed by seedlings propagated in vitro

    Directory of Open Access Journals (Sweden)

    Angela P. Nogales

    2002-12-01

    Full Text Available Avaliaram-se, neste trabalho, três lâminas de irrigação (75, 100 e 125% da ETc, correspondentes aos tratamentos T1, T2 e T3, respectivamente para produção de semente básica de batata (Solanum ssp sob condições de estufa, a partir de plantas propagadas in vitro. O estudo se realizou na localidade de Viacha, próximo à cidade de La Paz, Bolívia. Os teores de água no solo foram elevados nos três tratamentos, mas se mantiveram com valores adequados para o desenvolvimento de plântulas de batata propagadas in vitro, sendo que o rendimento dos tubérculos não variou significativamente nos três tratamentos, alcançando-se 1,07, 1,03 e 0,92 kg m-2 para T3, T2 e T1, respectivamente. Por outro lado, houve diferenças significativas nas eficiências de uso da água, obtendo-se para T2, o maior índice.The objective of this work was to evaluate three irrigation water depths (75, 100 and 125% of ETc, corresponding to treatments T1, T2 and T3, respectively for potato seed (Solanum spp production under greenhouse conditions. The study was conducted at Viacha locality, near La Paz, in Bolivia. Soil water content was high for all the treatments but adequate for the development of plants propagated in vitro. Tuber productivity did not vary significantly and was 1.07, 1.03 and 0.92 kg m-2 for T3, T2 and T1 treatments respectively. On the other hand the water use efficiency varied significantly and was the highest for T2 treatment.

  19. Variation of biometric parameters and C, N, and P concentrations of Oryza glumaepatula at different depths of an Amazonian lake impacted by bauxite tailings (Lake Batata, Pará, Brazil).

    Science.gov (United States)

    Enrich-Prast, A; Esteves, F A; Breves, A R

    2002-02-01

    Lake Batata is a typical Amazonian clear water lake which has undergone anthropogenic impacts. Thirty percent of its total area has been covered with bauxite tailings. Thus, it is possible to distinguish two areas in this ecosystem: the impacted and the natural. The goal of this research was to study C, N, and P content variation and the values of biomass, length, density, and culm diameter of Oryza glumaepatula at different depths in the natural and impacted areas of Lake Batata. The results obtained in this research suggest that the availability of P and N, in both water and sediment, is lower at the shallow site when compared to the deeper sites. On the other hand, C concentrations decreased as P and N concentrations increased. This may be explained by the structural function of C in aquatic macrophytes. At shallower sites, due to the reduced water column, individuals invest in supporting structures that display high C concentrations. The higher density and biomass of O. glumaepatula at the intermediate site indicate that this area presents the best conditions for germination and establishment of individuals of this species. The chemical composition and biometric parameters of O. glumaepatula have shown that this population has higher spatial variation in the natural area. In the impacted area, the absence of significant variations in N and P concentrations in O. glumaepatula among the three sampled sites promotes higher homogeneity in the stands. The high C:P and N:P ratios indicate that, in the impacted area, P is more limiting to the development of O. glumaepatula than it is in the natural area. The reduced values of biomass and density of O. glumaepatula in the impacted area suggest that the bauxite tailings limit the development of this population.

  20. Study on the Quick-Freezed Mud Production with the Flavor of Baked Ipomoea batatas Lam%速冻烤紫薯风味泥制品的研制

    Institute of Scientific and Technical Information of China (English)

    梁曹雯; 邓后勤

    2016-01-01

    以紫薯为原料,通过设置温度梯度研究了烤制温度对紫薯花色苷的影响,得出最佳烘烤温度,通过正交试验研究了配料比对烤紫薯风味调理制品质量的影响,确定产品的最优配方。结果表明:最佳烘烤温度为200℃;产品最优配方为:100 g紫薯泥,添加糖粉2.0%、吉士粉2.0%、奶粉2.5%、黄油4.0%,该配方生产的速冻烤紫薯风味泥制品紫薯风味浓郁,口感细腻。%UsingIpomoea batatas Lam as material, researched the effect of baking temperature on the anthocyanins by setting the temperature gradient, and obtained the optimum baking temperature; studied the effect of ratio of ingredients on the quantity of conditioning products with the lfavor of baked purple sweet potato by the method of orthogonal experiment, and determined the optimum formula of products. The results showed that the best baking temperature was 200℃; the optimal formula for the products was each 100g purple potato mud, adding 2.0% of powdered sugar, 2.0% of custard powder, 2.5% of milk powder and 4.0% of butter. With this formula, the quick-freezed mud production with the lfavor of bakedIpomoea batatas Lam presented rich lfavor and delicate taste.

  1. Produção de minitubérculos de batata semente básica em hidroponia em função de doses de nitrogênio

    Directory of Open Access Journals (Sweden)

    Carla de Bem Santos Souza

    Full Text Available A dose ótima de nitrogênio (N na cultura da batata depende do sistema de produção. O objetivo do trabalho foi determinar a dose ótima de N para a produção de minitubérculos de batata-semente básica em hidroponia e verificar o desenvolvimento da planta no sistema hidropônico em plataforma de telha amianto. O experimento foi realizado em ambiente protegido, no Departamento de Fitotecnia da Universidade Federal de Viçosa, utilizando o plantio de broto da cultivar Asterix. Os tratamentos foram constituídos por quatro doses de N (45; 90; 180 e 270 mg L-1, sendo 10% de cada dose de N aplicadas na forma de nitrato de amônio (N-NH4+ e o restante de N na forma de nitrato de cálcio e nitrato de potássio. O maior número (14,1 tubérculos/planta e a máxima massa de tubérculos (68,4 g/planta foram obtidos com 188,9 e 270 mg L-1 de N, respectivamente. Portanto, número e massa de tubérculos não foram otimizados pela mesma dose de N. O índice crítico SPAD na quarta folha é variável com a idade da planta sendo de 38,4 o maior valor atingido aos 58 DAT.

  2. COMPETITION BETWEEN EIGHT GAUCHA AND GERMAN POTATO (Solanum tuberosum L. VARIETIES IN GOIÂNIA-GO, BRAZIL COMPETIÇÃO ENTRE OITO VARIEDADES, GAÚCHAS E ALEMÃS DE BATATA

    Directory of Open Access Journals (Sweden)

    Peter E. Sonnenberg

    2007-09-01

    Full Text Available

    Eight potato varieties, Baronesa, Canguçu and Piratini, from the state of Rio Grande do Sul, and the German varieties Achat, Echo, Fátima, Jetta and Porta were tested in this trial, during the dry season, in Goiânia, state of Goiás. Baronesa resulted the best one in total yield and production of large tubers (over 60 grams followed next by Piratini. However, there are doubts wether their pink skinned tubers would be accepted by the consumer of this region, accustomed to yellow potatoes. Among the German varieties, Porta and Fátima ranked best and even they yielded less than Baronesa and Piratini, there was no significant difference between the two groups.

    As variedades de batata, Baronesa, Canguçu e Piratini, do Rio Grande do Sul e Achat, Echo, Fátima, Jetta e Porta, da Alemanha, foram comparadas quanto ao seu desenvolvimento e produção, no chamado plantio da seca, em Goiânia. Baronesa apresentou a maior produção total e de tubérculos grandes (acima de 60 g assim como maior número de tubérculos grandes, seguida pela Piratini. Ainda é necessário averiguar a aceitação dessas variedades na região porque seus tubérculos são de película rosada, enquanto o comércio local está acostumado a batatas amarelas. Das variedades alemãs, Porta e Fátima, embora apresentassem menor produção total e de tubérculos grandes, não diferiram estatisticamente das variedades gaúchas.

  3. Optimized growth and plant regeneration for callus of Lilium longiflorum cv. Nellie White

    Science.gov (United States)

    The rates of growth and regeneration were compared for compact callus, friable callus, and suspension cells of Lilium longiflorum cv. Nellie White to determine the optimal culture conditions. The fresh weight was higher for compact callus induced from bulb scales cultured on Murashige and Skoog’s m...

  4. Effect of LEDs on flower bud induction in Chrysanthemum morifolium cv. Zembla

    NARCIS (Netherlands)

    Singh, M.; Ieperen, van W.; Heuvelink, E.

    2013-01-01

    The effect of LEDs was studied to induce flower under artificial long days (LD) in Chrysanthemum morifolium cv. Zembla plants, using light emitting diodes (LED) @ PAR m-2 s-1 80% Red / 20% Blue maintained @ 100 µ mol m- 2 s- 1 using royal blue light @ 455 nm and red light @ 640 nm wavelengths and

  5. Endogenous auxin regulates the sensitivity of Dendrobium (cv. Miss Teen) flower pedicel abscission to ethylene

    NARCIS (Netherlands)

    Rungruchkanont, K.; Ketsa, S.; Chatchawankanphanich, O.; Doorn, van W.G.

    2007-01-01

    Dendrobium flower buds and flowers have an abscission zone at the base of the pedicel (flower stalk). Ethylene treatment of cv. Miss Teen inflorescences induced high rates of abscission in flower buds but did not affect abscission once the flowers had opened. It is not known if auxin is a regulator

  6. Study of Catalytic Reaction at Electrode-Electrolyte Interfaces by a CV-XAFS Method

    Science.gov (United States)

    Kusano, Shogo; Matsumura, Daiju; Asazawa, Koichiro; Kishi, Hirofumi; Sakamoto, Tomokazu; Yamaguchi, Susumu; Tanaka, Hirohisa; Mizuki, Jun'ichiro

    2017-01-01

    A method combining cyclic voltammetry (CV) with x-ray absorption fine structure (XAFS) spectroscopy, viz. CV-XAFS, has been developed to enable in situ real-time investigation of atomic and electronic structures related to electrochemical reactions. We use this method to study the reaction of a Pt/C cathode catalyst in the oxygen reduction reaction (ORR) in an alkaline electrolyte, using x-ray energies near the Pt LIII edge for XAFS measurements. It was found that the current induced by the ORR was first observed at approximately 0.08 V versus Hg/HgO, although the Pt valence, which is reflected in the oxidation states, remained almost unchanged. The electronic structure of the catalytic surface in the ORR was observed to be different in the negative and positive scan directions of CV measurements. Hydrogen adsorption is also discussed on the basis of the observation of this spectral change. We have demonstrated that CV-XAFS provides dynamical structural and electronic information related to electrochemical reactions and can be used for in situ real-time measurements of a catalyst.

  7. Galaxy and Mass Assembly (GAMA): The GAMA Galaxy Group Catalogue (G3Cv1)

    CERN Document Server

    Robotham, A S G; Driver, S P; Baldry, I K; Bamford, S P; Hopkins, A M; Liske, J; Loveday, J; Merson, A; Peacock, J A; Brough, S; Cameron, E; Conselice, C J; Croom, S M; Frenk, C S; Gunawardhana, M; Hill, D T; Jones, D H; Kelvin, L S; Kuijken, K; Nichol, R C; Parkinson, H R; Pimbblet, K A; Phillipps, S; Popescu, C C; Prescott, M; Sharp, R G; Sutherland, W J; Taylor, E N; Thomas, D; Tuffs, R J; van Kampen, E; Wijesinghe, D

    2011-01-01

    Using the complete GAMA-I survey covering ~142 sq. deg. to r=19.4, of which ~47 sq. deg. is to r=19.8, we create the GAMA-I galaxy group catalogue (G3Cv1), generated using a friends-of-friends (FoF) based grouping algorithm. Our algorithm has been tested extensively on one family of mock GAMA lightcones, constructed from Lambda-CDM N-body simulations populated with semi-analytic galaxies. Recovered group properties are robust to the effects of interlopers and are median unbiased in the most important respects. G3Cv1 contains 14,388 galaxy groups (with multiplicity >= 2$), including 44,186 galaxies out of a possible 110,192 galaxies, implying ~40% of all galaxies are assigned to a group. The similarities of the mock group catalogues and G3Cv1 are multiple: global characteristics are in general well recovered. However, we do find a noticeable deficit in the number of high multiplicity groups in GAMA compared to the mocks. Additionally, despite exceptionally good local spatial completeness, G3Cv1 contains signif...

  8. Endogenous auxin regulates the sensitivity of Dendrobium (cv. Miss Teen) flower pedicel abscission to ethylene

    NARCIS (Netherlands)

    Rungruchkanont, K.; Ketsa, S.; Chatchawankanphanich, O.; Doorn, van W.G.

    2007-01-01

    Dendrobium flower buds and flowers have an abscission zone at the base of the pedicel (flower stalk). Ethylene treatment of cv. Miss Teen inflorescences induced high rates of abscission in flower buds but did not affect abscission once the flowers had opened. It is not known if auxin is a regulator

  9. Automatic tracking of red blood cells in micro channels using OpenCV

    Science.gov (United States)

    Rodrigues, Vânia; Rodrigues, Pedro J.; Pereira, Ana I.; Lima, Rui

    2013-10-01

    The present study aims to developan automatic method able to track red blood cells (RBCs) trajectories flowing through a microchannel using the Open Source Computer Vision (OpenCV). The developed method is based on optical flux calculation assisted by the maximization of the template-matching product. The experimental results show a good functional performance of this method.

  10. Cherry Picking Robot Vision Recognition System Based on OpenCV

    Directory of Open Access Journals (Sweden)

    Zhang Qi Rong

    2016-01-01

    Full Text Available Through OpenCV function, the cherry in a natural environment image after image preprocessing, color recognition, threshold segmentation, morphological filtering, edge detection, circle Hough transform, you can draw the cherry’s center and circular contour, to carry out the purpose of the machine picking. The system is simple and effective.

  11. An evaluation of Panicum maximum cv. Gatton: 2. The influence of ...

    African Journals Online (AJOL)

    Unknown

    Abstract. The aim of the study was to evaluate the nutritional value of Panicum maximum cv. .... Table 2 Mean (± s.d.) chemical composition of oesophageal samples .... solubility, energy content of the diet and level of intake (Van Soest, 1982), ...

  12. VizieR Online Data Catalog: 72 faint CV candidates in CRTS (Breedt+, 2014)

    Science.gov (United States)

    Breedt, E.; Gansicke, B. T.; Drake, A. J.; Rodriguez-Gil, P.; Parsons, S. G.; Marsh, T. R.; Szkody, P.; Schreiber, M. R.; Djorgovski, S. G.

    2016-04-01

    We obtained identification spectra of a total of 72 faint CV candidates identified by the CRTS, using the Gran Telescopio Canarias (GTC; La Palma, Spain) and the Gemini telescopes (North: Mauna Kea, Hawaii and South: Cerro Pachon, Chile). The observations were carried out in service mode during 2010, 2011 and 2013. (5 data files).

  13. STRATEGI SEGMENTASI PASAR TERHADAP VOLUME PENJUALAN BUSANA MUSLIM PADA CV RABBANI ASYSA MAKASSAR

    OpenAIRE

    KARASE, HASNAWATI

    2014-01-01

    2014 Hasnawati Karase Haris Maupa Mukhtar Penelitian ini bertujuan untuk menganalisis strategi segmentasi pasar terhadap volume penjualan busana muslim pada CV Rabbani Asysa Makassar. Data penelitian ini diperoleh dari kuesioner (primer) mengenai segmentasi pasar Rabbani Makassar dengan mengambil sampel sebanyak 75 responden. Temuan penelitian ini menunjukkan bahwa variabel strategi segmentasi pasar yang terdiri dari segmentasi geografis, segmentasi demografis, segm...

  14. Using CV-GLUE procedure in analysis of wetland model predictive uncertainty.

    Science.gov (United States)

    Huang, Chun-Wei; Lin, Yu-Pin; Chiang, Li-Chi; Wang, Yung-Chieh

    2014-07-01

    This study develops a procedure that is related to Generalized Likelihood Uncertainty Estimation (GLUE), called the CV-GLUE procedure, for assessing the predictive uncertainty that is associated with different model structures with varying degrees of complexity. The proposed procedure comprises model calibration, validation, and predictive uncertainty estimation in terms of a characteristic coefficient of variation (characteristic CV). The procedure first performed two-stage Monte-Carlo simulations to ensure predictive accuracy by obtaining behavior parameter sets, and then the estimation of CV-values of the model outcomes, which represent the predictive uncertainties for a model structure of interest with its associated behavior parameter sets. Three commonly used wetland models (the first-order K-C model, the plug flow with dispersion model, and the Wetland Water Quality Model; WWQM) were compared based on data that were collected from a free water surface constructed wetland with paddy cultivation in Taipei, Taiwan. The results show that the first-order K-C model, which is simpler than the other two models, has greater predictive uncertainty. This finding shows that predictive uncertainty does not necessarily increase with the complexity of the model structure because in this case, the more simplistic representation (first-order K-C model) of reality results in a higher uncertainty in the prediction made by the model. The CV-GLUE procedure is suggested to be a useful tool not only for designing constructed wetlands but also for other aspects of environmental management.

  15. STRATEGI SEGMENTASI PASAR TERHADAP VOLUME PENJUALAN BUSANA MUSLIM PADA CV RABBANI ASYSA MAKASSAR

    OpenAIRE

    KARASE, HASNAWATI

    2014-01-01

    2014 Hasnawati Karase Haris Maupa Mukhtar Penelitian ini bertujuan untuk menganalisis strategi segmentasi pasar terhadap volume penjualan busana muslim pada CV Rabbani Asysa Makassar. Data penelitian ini diperoleh dari kuesioner (primer) mengenai segmentasi pasar Rabbani Makassar dengan mengambil sampel sebanyak 75 responden. Temuan penelitian ini menunjukkan bahwa variabel strategi segmentasi pasar yang terdiri dari segmentasi geografis, segmentasi demografis, segm...

  16. Abstract Morphemes and Lexical Representation: The CV-Skeleton in Arabic

    Science.gov (United States)

    Boudelaa, Sami; Marslen-Wilson, Willian D.

    2004-01-01

    Overlaps in form and meaning between morphologically related words have led to ambiguities in interpreting priming effects in studies of lexical organization. In Semitic languages like Arabic, however, linguistic analysis proposes that one of the three component morphemes of a surface word is the CV-Skeleton, an abstract prosodic unit coding the…

  17. Agrobacterium-mediated transformation of Easter lily (Lilium longiflorum cv. Nellie White)

    Science.gov (United States)

    Conditions were optimized for transient transformation of Lilium longiflorum cv. Nellie White using Agrobacterium tumefaciens. Bulb scale and basal meristem explants were inoculated with A. tumefaciens strain AGL1 containing the binary vector pCAMBIA 2301 which has the uidA gene that codes for ß-gl...

  18. Isolation and characterization of CvIV4: a pain inducing α-scorpion toxin.

    Directory of Open Access Journals (Sweden)

    Ashlee H Rowe

    Full Text Available BACKGROUND: Among scorpion species, the Buthidae produce the most deadly and painful venoms. However, little is known regarding the venom components that cause pain and their mechanism of action. Using a paw-licking assay (Mus musculus, this study compared the pain-inducing capabilities of venoms from two species of New World scorpion (Centruroides vittatus, C. exilicauda belonging to the neurotoxin-producing family Buthidae with one species of non-neurotoxin producing scorpion (Vaejovis spinigerus in the family Vaejovidae. A pain-inducing α-toxin (CvIV4 was isolated from the venom of C. vittatus and tested on five Na(+ channel isoforms. PRINCIPAL FINDINGS: C. vittatus and C. exilicauda venoms produced significantly more paw licking in Mus than V. spinigerus venom. CvIV4 produced paw licking in Mus equivalent to the effects of whole venom. CvIV4 slowed the fast inactivation of Na(v1.7, a Na(+ channel expressed in peripheral pain-pathway neurons (nociceptors, but did not affect the Na(v1.8-based sodium currents of these neurons. CvIV4 also slowed the fast inactivation of Na(v1.2, Na(v1.3 and Na(v1.4. The effects of CvIV4 are similar to Old World α-toxins that target Na(v1.7 (AahII, BmK MI, LqhIII, OD1, however the primary structure of CvIV4 is not similar to these toxins. Mutant Na(v1.7 channels (D1586A and E1589Q, DIV S3-S4 linker reduced but did not abolish the effects of CvIV4. CONCLUSIONS: This study: 1 agrees with anecdotal evidence suggesting that buthid venom is significantly more painful than non-neurotoxic venom; 2 demonstrates that New World buthids inflict painful stings via toxins that modulate Na(+ channels expressed in nociceptors; 3 reveals that Old and New World buthids employ similar mechanisms to produce pain. Old and New World α-toxins that target Na(v1.7 have diverged in sequence, but the activity of these toxins is similar. Pain-inducing toxins may have evolved in a common ancestor. Alternatively, these toxins may be the

  19. ANALISIS KEBUTUHAN TENAGA KERJA RESERVASI TERHADAP PERENCANAAN PENGEMBANGAN SUMBER DAYA MANUSIA PADA CV. CAN TOUR & TRAVEL

    Directory of Open Access Journals (Sweden)

    Maya Christina

    2017-01-01

    Full Text Available Employment remains the fundamental probel faced by many countries including Indonesia. One of the efforts the Government of Indonesia in extending employment opportunities is to develop the tourism sector. Bali is one of the potential tourist destinastions and it needs to be marketed. Cooperation between the Travel Bureau with the provider of the accommodation or hotel is one of the ways the potential market and the most instrumental in the development of the company, namely human resources required or called by labor. CV. CAN Tour and Travel is one of the tourist industry in Bali trip with a number of guest handling that quite a lot. This research aims to know the availability of labor needs resevartion in order CV. CAN Tour and Travel development and also to find out how the workforce qualification is required. Determination technique using the key informant that was labor reservation CV. CAN Tour and Travel, while the base of the informant was CV. CAN Tour and Travel Manager. Data analysis technique used is the analysis of workload and workforce needs analysis. The research results obtained indicate that shortage of time working as many as 210 minutes. So the manpower needed by CV. CAN Tour and Travel is two people with the fact that there is only 1 nowaday. It can be seen from the burden of the work done in a day’s work and the workforce absences. So labor needs on the Reservation Department is supposed to be 3 people, with 2 staff 1 reservations and ticketing staff. It was necessary increase manpower in the Labour Departmen’s Reservation in the reservation and also training to develop the ability to work.

  20. Beryllium-Boron Systematics of Refractory Inclusions in CR2 and CV3 Chondrites: Evidence for 10Be Heterogeneity

    Science.gov (United States)

    Dunham, E.; Wadhwa, M.; Simon, S.; Grossman, L.

    2016-08-01

    Be-B systematics of Allende (CV3), Axtell (CV3), and NWA 5028 (CR2) CAIs suggests that 10Be was distributed heterogeneously in the early solar system which implies that 10Be was produced in the solar nebula by irradiation of nebular gas or dust.

  1. Storage of cut Heliconia bihai (L. cv. Lobster Claw flowers at low temperatures Armazenamento de hastes florais de Heliconia bihai (L. cv. Lobster Claw em baixa temperatura

    Directory of Open Access Journals (Sweden)

    Andreza S. Costa

    2011-09-01

    Full Text Available The postharvest conservation of cut Heliconia flowers is an important factor to the success of commercialization, especially with regard to exportation. In the present study, the maximal storage time of cut inflorescences of Heliconia bihai cv. Lobster Claw at two different temperatures (12 and 19 °C was evaluated and compared to laboratory conditions (25 °C, control treatment. Changes in visual quality, fresh weight and bract color (L*, a* and b* were determined. The visual quality of the inflorescences and fresh weight decreased with time in all treatments. Symptoms of chilling injury were observed on the inflorescences stored at 12 °C for six and eight days. Bract color was not affected by temperature, storage time or the senescence process. The results indicate that a temperature of 12 °C is not recommended for a storage time longer than four days, whereas 19 °C can be used for a storage time of up to eight days for cut inflorescences of H. bihai cv. Lobster Claw.A conservação pós-colheita de flores de corte de Heliconia é fator relevante para o sucesso da comercialização, principalmente para a exportação. Neste estudo, o período máximo de armazenamento de hastes florais de Heliconia bihai cv. Lobster Claw, foi avaliado em duas diferentes temperaturas (12 e 19 °C e comparado com as condições de laboratório (25 °C, tratamento controle. As variáveis avaliadas foram: qualidade visual, massa de matéria fresca e a coloração das inflorescências (L*, a* e b*. A qualidade visual das inflorescências e a massa de matéria fresca de todos os tratamentos reduziram ao longo do tempo. Sintomas de injúria por frio foram observados nas inflorescências armazenadas a 12 °C, durante seis e oito dias. A coloração das brácteas não foi afetada pela temperatura, período de armazenamento nem pelo processo de senescência. Os resultados indicam que a temperatura de 12 °C não é recomendada para armazenar hastes florais de

  2. Comportamento agronômico inicial da cv. Chimarrita enxertada em cinco porta-enxertos de pessegueiro Agronomical behavior of cv. Chimarrita on five rootstocks of peach trees

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    Moacir da Silva Rocha

    2007-01-01

    Full Text Available O trabalho teve por objetivo avaliar a resposta agronômica da cv. Chimarrita enxertada em cinco porta-enxertos, nas condições edafoclimáticas da região de Pelotas-RS, no período de 2003 a 2005. Durante o período de execução do experimento, foram avaliados o diâmetro do tronco do porta-enxerto e da cultivar-copa, comprimento médio dos ramos principais, volume de copa, massa fresca e massa seca do material vegetal retirado nas podas verde e de inverno, índice de intensidade de poda, massa média dos frutos, produção por planta, eficiência produtiva, produção por hectare, sólidos solúveis totais, firmeza da polpa, diâmetro e coloração dos frutos. O porta-enxerto 'Capdeboscq' induziu o maior crescimento vegetativo na cv. Chimarrita durante os três anos de avaliação, seguido do porta-enxerto 'Okinawa'. Este, por sua vez, induziu o maior rendimento produtivo (1,65 t ha-1. A cv. Capdeboscq proporcionou a obtenção de frutos com maior massa. Os porta-enxertos 'GF 305' e 'Aldrighi' induziram menor desenvolvimento vegetativo e a mais baixa produtividade (0,52 t.ha-1 .The objective for this study was to evaluate the agronomical behavior of cv. Chimarrita on five rootstocks of peach trees in Pelotas- RS from 2003 to 2005. The variables evaluated were: trunk diameters of the rootstock and of the scion; length of the annual terminal growth; volume of the canopy; fresh and dry weight of the material taken by the summer and winter pruning; pruning intensity index; fruit weight; fruit production per tree; production efficiency; productivity per hectare; total soluble solids; pulp firmness; and fruit diameter and color. It was observed that the trees from: rootstock 'Capdeboscq' promoted higher vegetative growth and larger fruits, followed by the ones from the rootstock 'Okinawa' which promoted the highest yield (1, 65 t.ha-1; the rootstock 'GF 305' and 'Aldrighi' had the lowest vegetative development and yield (0, 52 t.ha-1.

  3. [The estimation of daily physical activity with the coefficient of variation (CV) of heart rates continuously recorded].

    Science.gov (United States)

    Tono-oka, T; Kaneko, I

    1993-05-01

    The daily level of physical activity was estimated using the heart rate monitor, PE3000 (Polar Electro, Finland). The level was expressed with the coefficient of variation (CV) of heart rates recorded from waking time to dinner time. In the course of a day of intense physical activity, CV was confirmed to rise significantly. Then the CV was estimated and compared among 3 age classes, young (10-18 years), middle-aged (30-47 years), and elderly (62-76 years). The CVs of young people were significantly higher than those of middle-aged (P < 0.001) and elderly (P < 0.01), regardless of sex. However there was no significant sex difference in all age classes. These results suggest that the CV is an accurate index of daily physical activity. Thus clinicians can use the CV of heart rates to estimate the level of physical activity of individuals which closely relates to QOL.

  4. Somaclonal variation on in vitro callus culture potato cultivars Variação somaclonal in vitro em cultura de calos de cultivares de batata

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    Patricia N. Bordallo

    2004-06-01

    Full Text Available Synthetic seeds can be an alternative for those species in which botanical seeds are not viable. One of the major problems of in vitro plant cultivation is the high level of somaclonal variation. The most common factors affecting somaclonal variation are genotype, explant source, in vitro period and cultivation conditions in which the culture is established. In this work, calli were induced using leaf and stem explants of the commercial potato cultivars Achat, Baraka, Baronesa, Bintje, and Contenda in MS culture media supplemented with 1.65 mM of picloram and 11.5 mM of 2,4-D. Seventy and 90 days after induction, DNA samples of 40 calli were compared concerning the effects of the two explant (leaf and stem and two growth regulator sources on five potatoes cultivars. A total of 20 arbitrary sequence primers were evaluated. The RAPD pattern generated by these primers suggested a high percentage of polymorphic fragments among the five genotypes, indicating a high level of genetic variation among cultivars. Cultivar Baronesa showed the highest number of polymorphic fragments for all treatments. The cultivar Contenda showed the smallest somaclonal variation, for most of the treatments, except for the treatment which consisted of stem explants, picloram (1.65 mM application, and a 70-day period of callus formation. 'Contenda' is, therefore, the most suitable cultivar for synthetic seed production.A produção de sementes sintéticas pode ser uma altenativa para culturas, cuja produção de sementes botânicas não é viável. Um dos principais problemas do cultivo de planta in vitro é o alto nível de variação somaclonal resultante. Os fatores mais comuns que afetam a variação somaclonal são genótipo, fonte de explante e duração e condições de cultivo. Neste trabalho, calos foram induzidos utilizando explantes de folha e caule das cultivares comerciais de batata Achat, Baraka, Baronesa, Bintje e Contenda em meio de cultura MS, suplementado

  5. Genótipos de batata com baixo teor de açúcares redutores Potato genotypes with low reducing sugar content

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    Arione da S Pereira

    2007-06-01

    Full Text Available Os objetivos deste trabalho foram avaliar genótipos de batata quanto ao teor de açúcares redutores e condições pós-colheita que favoreçam a identificação daqueles com baixo teor. Oito clones, previamente selecionados para cor clara de fritura, e a cultivar Atlantic foram avaliados nos períodos de outono de 2004 e 2005. Os experimentos foram conduzidos na Embrapa Clima Temperado, Pelotas-RS, Brasil (31°52'S, 52°21'W, em blocos ao acaso com quatro repetições. Em 2004, o teor de açúcares redutores foi quantificado após três condições: cura; quatro semanas refrigerados a 4°C; e refrigeração seguida por recondicionamento durante duas semanas. Em 2005, os açúcares redutores foram analisados somente após a refrigeração. O teste F revelou diferenças significativas entre genótipos para todas as variáveis, exceto para açúcares redutores após a cura dos tubérculos. Os clones 'C-1883-22-97', 'C-1881-16-97', 'C-1786-9-96', 'C-1786-7-96' e 'C-1787-14-96' contiveram os teores mais baixos de açúcares redutores. A refrigeração foi a condição que permitiu a identificação de genótipos com baixos teores de açúcares redutores.The objectives of this work were to evaluate potato genotypes for reducing sugar content and post-harvest conditions that favored the identification of those with low content. Eight potato clones, previously selected for light frying color, and the cultivar Atlantic were evaluated in autumn seasons of 2004 and 2005. The experiments were carried out at Embrapa Clima Temperado, Pelotas-RS, Brazil (31°52'S, 52°21'W, in a randomized complete block design with four replications. In 2004, the reducing sugar content was quantified after three conditions: curing the tubers; four weeks of refrigerated storage at 4°C; and refrigeration followed by reconditioning for two weeks. In 2005, the reducing sugars were analyzed only after refrigeration. Besides that the genotypes were evaluated for chip color, dry

  6. Seleção de clones de batata para microclimas de altitude no Planalto Central Selection of potato cultivars for high altitude microclimates in Central Brazil

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    Nei Peixoto

    2002-09-01

    Full Text Available Iniciou-se em 1986, em Anápolis, um programa de desenvolvimento de cultivares de batata adaptadas ao clima de altitude do Brasil Central, partindo-se de 15.000 genótipos, resultantes de 200 famílias obtidas pela Embrapa Hortaliças em 1985 e 1986. No primeiro ciclo, em 1986, foram selecionados 5.000 genótipos, considerando-se aspectos fenológicos, incidência de doenças, qualidade dos tubérculos e potencial de produção. Esses mesmos critérios foram adotados nas gerações posteriores, selecionando-se, anualmente, 15-20% de genótipos superiores. Em 1990 avaliaram-se 52 destes clones, tendo como testemunhas as cultivares Achat e Bintje; Destes foram selecionados 28 clones promissores que foram submetidos à cultura de ápices caulinares e à indexação para os vírus PLRV, PVY e PVX na Embrapa Hortaliças. No período de 1995 a 1997 foram avaliados em Goiás, nos municípios de Anápolis, Morrinhos, Pirenópolis e Urutaí, e em Jaboticabal. Os dados foram submetidos à análise de variância, e aqueles referentes a 14 genótipos em 7 ambientes, à regressão pelo método de Eberhart & Russell. Os clones BAT 2, BAT 3, BAT 4, BAT 19, BAT 27 e BAT 28 destacaram-se entre os mais produtivos, considerando-se, também, as características de tubérculos para o consumo. Os genótipos responderam proporcionalmente à melhoria do ambiente. O clone BAT 19 foi o mais estável.A potato selection program was done in Anapolis, State of Goias, Brazil, beginning in 1986 with 15,000 genotypes, resulting from 200 crosses obtained by Embrapa Hortaliças in 1985 and 1986. In the first selection cycle, in 1986, 5,000 genotypes were selected, considering plant growth and development, disease incidence, tuber quality and yield potential. These criteria were also adopted in further generations, when 15 to 20% of the best genotypes were yearly selected. In 1990 52 of the selected genotypes were evaluated in comparison with the cultivars Achat and Bintje. The

  7. Effect of inoculation and nitrogen top-dressing on yields and fodder value of winter pea cv. Maksimirski ozimi in triticale cv. Clercal mixture

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    Darko Uher

    2006-07-01

    Full Text Available Two year field trials (1999-2001 were aimed to determine the inoculation seed winter pea and nitrogen top-dressing effect on number and active nodules of pea root and also on the green mass and dry matter yield of winter pea cv. Maksimirski ozimi and triticale cv. Clercal mixture. Immediately before sowing the inoculation of pea seeds was done by the indigenous variety of Rhizobium leguminosarum bv. viciae which belongs to the collection of Department of Microbiology at the Faculty of Agriculture University of Zagreb. The highest total nodule number on pea root (134 was determined on the inoculated variant as well as active nodule (120. Average mixture green mass yields were ranging from 20.9 t ha-1 (control up to 30.1 t ha-1 (inoculation + nitrogen top-dressing. Total dry matter yields were ranging from 3.71 t ha-1 (control up to 5.36 t ha-1 (nitrogen top-dressing. Pea crude protein yields in 2001 were ranging from 500 kg ha-1 (nitrogen top-dressing up to 642 kg ha-1 (inoculation and for triticale, those values were from 322 kg ha-1 (control up to 498 kg ha-1 (nitrogen top-dressing. Total mixture crude proteins yields were from 845 kg ha-1 (control up to 998 kg ha-1 (nitrogen top-dressing.

  8. Fox grape cv. Bordô (Vitis labrusca L. and grapevine cv. Chardonnay (Vitis vinifera L. cultivated in vitro under different carbohydrates, amino acids and 6-Benzylaminopurine levels

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    Dayse Cristina de Carvalho

    2013-04-01

    Full Text Available The aim of this work was to study the influence of sucrose and glucose, amino acids and BAP (6-Benzylaminopurine levels on in vitro shoot regeneration of fox grape cv. Bordô and grapevine cv. Chardonnay. The nodal segments from micropropagated material were used as explants and half-strength MS medium as the basal medium. Sucrose and glucose at 15, 30 and 45 g.L-1 were tested as a carbon source and the supplementation of adenine, asparagine, alanine, glycine, cysteine, glutamine, arginine was tested at 40 g.L-1. The BAP levels (1 and 5 μM in solid and double-phase media were evaluated and compared with a control medium without BAP. Bordô had best in vitro growth than Chardonnay. Sucrose was a better carbohydrate source than glucose for both the cultivars. Bordô and Chardonnay had different amino acid preferences for some parameters. In conclusion, for in vitro shoot regeneration from the nodal segments, culture on solid medium with 5 μM BAP, 15 g.L-1 sucrose for Bordô and 45 g.L-1 sucrose for Chardonnay showed better results. Similarly, the supplementation of 40 g.L-1 arginine for Bordô and 40 g.L-1 arginine or glycine for Chardonnay showed better results.

  9. Thermal stability of oils added with avocado (Persea americana cv. Hass) or olive (Olea europaea cv. Arbequina) leaf extracts during the French potatoes frying.

    Science.gov (United States)

    Jiménez, Paula; García, Paula; Bustamante, Andrés; Barriga, Andrés; Robert, Paz

    2017-04-15

    Effect of the addition of avocado (Persea americana cv. Hass) or olive (Olea europaea cv. Arbequina) hydroalcoholic leaf extracts (AHE and OHE, respectively) on thermal stability of canola oil (CO) and high oleic sunflower oil (HOSO) during French potatoes frying at 180°C was studied. The extracts were characterized by the total phenolic content, phenol chromatographic profiles and antioxidant activity. B-type trimer procyanidins were the major phenolic compounds identified in AHE. OHE showed higher phenol content, antioxidant activity regarding AHE. CO+OHE and HOSO+OHE decreased the formation of polar compounds and showed an anti-polymeric effect with respect to oils without extracts, whereas AHE extract showed a prooxidant effect on HOSO. Therefore, OHE showed an antioxidant effect on HOSO and CO under the studied conditions. In addition, all systems (CO+AHE, HOSO+AHE, CO+OHE and HOSO+OHE) increased the retention of tocopherols. These results demonstrate the potential utility of OHE as natural antioxidant for oils. Copyright © 2016 Elsevier Ltd. All rights reserved.

  10. 基于 OpenCV 的双目摄像机标定技术研究%Binocular Camera Calibration Technique Based on OpenCV

    Institute of Scientific and Technical Information of China (English)

    王长元; 邢世蒙

    2014-01-01

    摄像机标定技术作为双目立体视觉领域的一个基础性研究课题,具有很大的理论研究价值和实际应用价值。论文围绕双目立体视觉中的双目摄像机标定技术,分析基于OpenCV的双目摄像机标定的方法。基于OpenCV的双目摄像机标定比传统的定标技术更为灵活,并且具有不错的定标精度。%As a foundational research in the field of binocular stereo vision ,camera calibration technique has great theo‐retical value and practical value .This paper focuses on the binocular stereo vision camera calibration technique to analyze the binocular camera calibration method based on OpenCV .OpenCV camera calibration based on binocular is more flexible than traditional scaling techniques ,and has a good calibration accuracy .

  11. Formation of biphenyl and dibenzofuran phytoalexins in the transition zones of fire blight-infected stems of Malus domestica cv. 'Holsteiner Cox' and Pyrus communis cv. 'Conference'.

    Science.gov (United States)

    Chizzali, Cornelia; Khalil, Mohammed N A; Beuerle, Till; Schuehly, Wolfgang; Richter, Klaus; Flachowsky, Henryk; Peil, Andreas; Hanke, Magda-Viola; Liu, Benye; Beerhues, Ludger

    2012-05-01

    In the rosaceous subtribe Pyrinae (formerly subfamily Maloideae), pathogen attack leads to formation of biphenyls and dibenzofurans. Accumulation of these phytoalexins was studied in greenhouse-grown grafted shoots of Malus domestica cv. 'Holsteiner Cox' and Pyrus communis cv. 'Conference' after inoculation with the fire blight bacterium, Erwinia amylovora. No phytoalexins were found in leaves. However, both classes of defence compounds were detected in the transition zone of stems. The flanking stem segments above and below this zone, which were necrotic and healthy, respectively, were devoid of detectable phytoalexins. The transition zone of apple stems contained the biphenyls 3-hydroxy-5-methoxyaucuparin, aucuparin, noraucuparin and 2'-hydroxyaucuparin and the dibenzofurans eriobofuran and noreriobofuran. In pear, aucuparin, 2'-hydroxyaucuparin, noreriobofuran and in addition 3,4,5-trimethoxybiphenyl were detected. The total phytoalexin content in the transition zone of pear was 25 times lower than that in apple. Leaves and stems of mock-inoculated apple and pear shoots lacked phytoalexins. A number of biphenyls and dibenzofurans were tested for their in vitro antibacterial activity against some Erwinia amylovora strains. The most efficient compound was 3,5-dihydroxybiphenyl (MIC=115 μg/ml), the immediate product of biphenyl synthase which initiates phytoalexin biosynthesis.

  12. Avaliação da Brachiaria brizantha cv. marandu em sistemas silvipastoris Evaluation of Brachiaria brizantha cv. marandu in silvopastoral systems

    Directory of Open Access Journals (Sweden)

    G.R. Moreira

    2009-06-01

    Full Text Available Avaliou-se a degradabilidade in situ da matéria seca (MS da Brachiaria brizantha cv. marandu colhida em dois sistemas silvipastoris compostos pelas arbóreas, ipê felpudo (Zeyheria tuberculosa e aroeira (Myracrodruon urundeuva, localizados no bioma Cerrado, município de Lagoa Santa, MG. O período de coleta da forragem foi de dezembro de 2004 a abril de 2005. O delineamento utilizado foi em blocos ao acaso, segundo esquema de parcelas subdivididas, sendo as parcelas os tratamentos e as sub-parcelas os tempos de degradação. O sombreamento com as arbóreas não influenciou a degradabilidade in situ da matéria seca da forrageira.In situ degradability of dry matter of Brachiaria brizantha cv. marandu harvested in two silvopastoral systems was evaluated. One system was composed by Zeyheria tuberculosa tree and the other by Myracrodruon urundeuva, both located at Brazilian Savannah, Lagoa Santa, MG. A completely ramdomized block experimental design in a splitplot arrangement was used. The treatments were allocated in the plots and the times in the splitplot. No effect of shade was observed for in situ dry matter degradability.

  13. Efeito de reguladores de crescimento em uva apirênica, cv. BRS Clara Effect of growth regulators on the seedless grape cv. BRS Clara

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    Jair Costa Nachtigal

    2005-08-01

    Full Text Available O presente trabalho teve por objetivo verificar o efeito da aplicação de diferentes concentrações do ácido giberélico (AG3, do thidiazuron (TDZ e do forchlorfenuron (CPPU no aumento do tamanho dos cachos e das bagas e no teor de sólidos solúveis totais de uva sem semente, cv. BRS Clara. As plantas foram conduzidas no sistema de latada, sobre o porta-enxerto IAC 572, no espaçamento 2,5 x 2,0m e com irrigação por microaspersão. Os experimentos foram conduzidos na Estação Experimental de Viticultura Tropical, da Embrapa Uva e Vinho, em Jales-SP. Os reguladores de crescimento foram aplicados via pulverização localizada no cacho, utilizando-se de concentrações de 0 a 4mg.L-1 de CPPU; 0 a 10mg.L-1 de TDZ, e de 0 a 90mg.L-1 de AG3, isolados ou em conjunto. De modo geral, a aplicação dos reguladores de crescimento promove a melhoria da qualidade dos cachos da cv. BRS Clara; o uso do TDZ e do CPPU em conjunto com o AG3 produz um efeito sinérgico, proporcionando melhor resposta do que o uso isolado do AG3; os tratamentos com 60mg.L-1 de AG3; 20mg.L-1 de AG3 + 4mg.L-1 de CPPU, e 10mg.L-1 de AG3 + 5mg.L-1 de TDZ proporcionam os melhores resultados para o aumento do diâmetro das bagas; a aplicação de AG3 antes da floração da cv. BRS Clara provoca abortamento excessivo, reduzindo a qualidade comercial dos cachos; a utilização de concentrações elevadas dos reguladores reduz o teor de sólidos solúveis totais.The objective of this study was to evaluate the effect of different concentrations of gibberellic acid (AG3, thidiazuron (TDZ and forchlorfenuron (CPPU on the size of bunches and berries and on the total soluble solids content, when applied in different concentrations on the seedless grapes, cv. BRS Clara. The grapevines were grafted on the rootstock IAC 572, trained in the pergola system and, spaced 2.5 x 2.0m and irrigated by micro sprinklers. The experiments were carried out at the Embrapa Grape and Wine Experimental

  14. GC-FID/MS Profiling of Supercritical CO2 Extracts of Peels from Citrus aurantium, C. sinensis cv. Washington navel, C. sinensis cv. Tarocco and C. sinensis cv. Doppio Sanguigno from Dubrovnik Area (Croatia).

    Science.gov (United States)

    Jerković, Igor; Drulžić, Jasmina; Marijanović, Zvonimir; Gugić, Mirko; Jokić, Stela; Roje, Marin

    2015-07-01

    The peels of Citrus aurantium L. and Citrus sinensis Osbeck cultivars from the Dubrovnik region (south Croatia) were extracted by supercritical CO2 at 40 degrees C and 10 MPa at 1.76 kg/h to obtain enriched extracts in comparison with simple pressing of the peels. The extracts were analyzed in detail by gas chromatography and mass spectrometry (GC-FID/MS). Relevant similarities among the peel oil compositions of C. aurantium and C. sinensis cultivars were found with limonene predominance (up to 54.3%). The principal oxygenated monoterpenes were linalool (3.0%-5.9%), α-terpineol (0.7%-2.4%), linalyl acetate (0.0%-5.0%), geranyl acetate (0.0%-0.4%), (Z)-citral (0.0%-1.8%) and (E)-citral (0.0%-1.9%). Several sesquiterpenes were found with minor percentages. Coumarin derivatives were identified in all the samples among the relevant compounds. Isogeijerin dominated in the peels of C. sinensis cv. Tarocco (15.3%) and C. aurantium (11.2%). Scoparone ranged from 0.1% to 0.5% in all the samples. Bergapten (up to 1.4%), osthole (up to 1.1%) and 7-methoxy-8-(2-formylpropyl)coumarin (up to 1.1%) were found mostly in C. sinensis cv. Doppio Sanguigno. It was possible to indicate a few other differences among the extracts such as higher percentage of linalool, linalyl and geranyl acetates, as well as the abundance of sabinene and isogeijerin in C. aurantium or the occurrence of β-sinensal in C. sinensis cultivars.

  15. Potato cv. Romano reaction to primary and secondary infection with potato necrotic strain Y virus (PVYNTN

    Directory of Open Access Journals (Sweden)

    Drago Milošević

    2015-01-01

    Full Text Available Primary and secondary infections with PVYNTN were investigated on forty plants of the potato cv. Romano inoculated in a greenhouse in Serbia in 2012 and 2013. PVY isolates were collected from the potato growing region of Čačak and identified by ELISA and RT-PCR methods. The sequence of the Serbian isolate 3D (Acc. No. KJ946936 showed 100% match with seven PVY isolates deposited in GenBank and described as NTN. A significant difference was detected between PVYNTN symptoms exibited on leaves of the cv. Romano under primary and secondary infections. The findings are significant because they are based on symptoms observed, so that it is clear that there are two distinct types of infection: primary and secondary. Symptoms of primary and secondary infection were the same on potato tubers and had the form of necrotic rings.

  16. Moxibustion on Shenque (CV 8) Improves Effect of Acupuncture for Diarrhea-predominant Irritable Bowel Syndrome

    Institute of Scientific and Technical Information of China (English)

    Liu Xiao-xia

    2014-01-01

    Objective:To observe the clinical effect of acupuncture and moxibustion on diarrhea-predominant irritable bowel syndrome (IBS-D). Methods: A total of 60 IBS-D patients were randomly allocated into a treatment group and a control group, 30 in each group. Patients in the treatment group were treated with acupuncture combined with ginger and salt-partitioned moxibustion on Shenque (CV 8), whereas patients in the control group only received acupuncture treatment. Six days made up a course of treatment, and the clinical effects were statistically analyzed after 4 courses. Results: The overall response rate in the treatment group was 96.7%, versus 76.7% in the control group, showing a statistical significance (P Conclusion: Acupuncture combined with ginger and salt-partitioned moxibustion on Shenque (CV 8) can obtain better effect for ISB-D than acupuncture alone.

  17. Strength, Weaknesses, Opportunities, and Threats (SWOT Analysis of CV Rejeki Mapan Lestari

    Directory of Open Access Journals (Sweden)

    Teguh Sriwidadi

    2016-05-01

    Full Text Available The objectives of this research were to identify the strengths, weaknesses, opportunities, and threats faced by CV Rejek Mapan Lestari, and to establish the appropriate strategies that should be applied to the company to evolve the company business. The research was conducted with a descriptive method, the researcher gathered the data with two medium, questionnaire and interview followed by the extraction method using various way such as IFE Matrix, EFE Matrix, SWOT/TOWS, IE Matrix, and QSPM Matrix which result in various alternative strategies that could be the viable option for the company. It can be concluded that CV Rejeki Mapan Lestari is highly advised in using a product development strategy by extending product variant and adding product that meet the markets need, for instance plastic flake.

  18. A REAL-TIME C-V CLUSTERING ALGORITHM FOR WEB-MINING

    Institute of Scientific and Technical Information of China (English)

    Li Haiying; Zhuang Zhenquan; Li Bin; Wan Ke

    2002-01-01

    In this letter, a real-time C-V (Characteristic-Vector) clustering algorithm is put forth to treat with vast action data which are dynamically collected from web site. The algorithm cites the concept of C-V to denote characteristic, synchronously it adopts two-value [0,1]input and self-definition vigilance parameter to design clustering-architecture. Vector Degree of Matching (VDM) plays a key role in the clustering algorithm, which determines the magnitude of typical characteristic. Making use of stability analysis, the classifications are confirmed to have reliably hierarchical structure when vigilance parameter shifts from 0.1 to 0.99. This non-linear relation between vigilance parameter and classification upper limit helps mining out representative classifications from net-users according to the actual web resource, then administering system can map them to web resource space to implement the intelligent configuration effectually and rapidly.

  19. Vigor tests to evaluate the physiological quality of corn seeds cv. 'Sertanejo'

    Directory of Open Access Journals (Sweden)

    Daniela Vieira dos Anjos Sena

    Full Text Available ABSTRACT: The vigor tests are intended to monitor the quality of seeds as it allows reliably distinguish lots of low and high vigor, providing additional information to the germination test. So in this study the objective was to identify the most efficient vigor tests on stratification of lots of corn seeds cv. 'Sertanejo'. The experiment was conducted at Laboratory of Seed Analysis at the Center of agricultural Science of the Universidade Federal da Paraíba, using samples from 20 seed lots in a completely randomized design. For characterization of the lots it was evaluated water content, germination and vigor (cold test, electrical conductivity, accelerated aging, seedling emergence in field and germination at low temperatures. The accelerated aging, electrical conductivity and field emergence of seedlings tests are the most efficient for classification of lots of corn seeds cv. 'Sertanejo' in levels of vigor, been the seeds of lot 1 the most vigorous.

  20. Camera calibration method of binocular stereo vision based on OpenCV

    Science.gov (United States)

    Zhong, Wanzhen; Dong, Xiaona

    2015-10-01

    Camera calibration, an important part of the binocular stereo vision research, is the essential foundation of 3D reconstruction of the spatial object. In this paper, the camera calibration method based on OpenCV (open source computer vision library) is submitted to make the process better as a result of obtaining higher precision and efficiency. First, the camera model in OpenCV and an algorithm of camera calibration are presented, especially considering the influence of camera lens radial distortion and decentering distortion. Then, camera calibration procedure is designed to compute those parameters of camera and calculate calibration errors. High-accurate profile extraction algorithm and a checkboard with 48 corners have also been used in this part. Finally, results of calibration program are presented, demonstrating the high efficiency and accuracy of the proposed approach. The results can reach the requirement of robot binocular stereo vision.

  1. Diagnosis of Elevator Faults with LS-SVM Based on Optimization by K-CV

    Directory of Open Access Journals (Sweden)

    Zhou Wan

    2015-01-01

    Full Text Available Several common elevator malfunctions were diagnosed with a least square support vector machine (LS-SVM. After acquiring vibration signals of various elevator functions, their energy characteristics and time domain indicators were extracted by theoretically analyzing the optimal wavelet packet, in order to construct a feature vector of malfunctions for identifying causes of the malfunctions as input of LS-SVM. Meanwhile, parameters about LS-SVM were optimized by K-fold cross validation (K-CV. After diagnosing deviated elevator guide rail, deviated shape of guide shoe, abnormal running of tractor, erroneous rope groove of traction sheave, deviated guide wheel, and tension of wire rope, the results suggested that the LS-SVM based on K-CV optimization was one of effective methods for diagnosing elevator malfunctions.

  2. Comparison of direct mercury analyzer and FIA-CV-AAS in determination of methylmercury in fish

    Science.gov (United States)

    Ulrich, J. C.; Hortellani, M. A.; Sarkis, J. E. S.; Nakatsubo, M. A.

    2016-07-01

    Methylmercury (MeHg) has been determined in fish reference materials by direct mercury analyzer (DMA 80) and FIA-CV-AAS. In order to evaluate accuracy, certified reference materials (Fish protein, NRCC - Dorm 4 and fish material, Ipen - Dourada 1) were analyzed after extraction and separation of mercury species. Good agreement of the results have been obtained (relative error of the determination between the methods varied from 1.5% to 39%). The repeatability of the results varied from 4% to 26%.

  3. 最权威的声音 Holden Monaro CV8-Z

    Institute of Scientific and Technical Information of China (English)

    李晓非

    2006-01-01

    让法拉利、保时捷、兰博基尼这些家伙都见鬼去吧,在澳大利亚,只有一款跑车可以大声说话,那就是霍顿Monaro。而作为最后一代的Monaro, Monaro CV8-Z依然在澳洲跑车界具有最权威的声音。

  4. Mechanisms of HIV-1 subtype C resistance to GRFT, CV-N and SVN

    CSIR Research Space (South Africa)

    Alexandre, Kabamba B

    2013-11-01

    Full Text Available Virology November 2013/ Vol. 446(1-2), 66-76 Mechanisms ofHIV-1subtypeCresistancetoGRFT,CV-NandSVN Kabamba B.Alexandre a,b, PennyL.Moore a,b, MolatiNonyane a, ElinS.Gray a, Nthabeleng Ranchobe a, EreckChakauya c, JamesB.McMahon d, BarryR.O’Keefe d...

  5. Composition of pectic polysaccharides in a Portuguese apple (Malus domestica Borkh. cv Bravo de Esmolfe)

    OpenAIRE

    2014-01-01

    Malus domestica Borkh. cv Bravo de Esmolfe is a typical Portuguese apple cultivar classified as Protected Designation and Origin (PDO). It is a traditional product produced under strict conditions and labelled with a specific law protected designation. This cultivar presents quite good sweetness and flavor. The monosaccharide composition of the pectic polysaccharides from this traditional apple is herein reported for the first time. Based on the molar ratios obtained from the sugar compositio...

  6. Frobenius type and CV-structures for Donaldson-Thomas theory and a convergence property

    CERN Document Server

    Barbieri, Anna

    2015-01-01

    We rephrase some well-known results in Donaldson-Thomas theory in terms of (formal families of) Frobenius type and CV-structures on a vector bundle in the sense of Hertling. We study these structures in an abstract setting, and prove a convergence result which is relevant to the case of triangulated categories. An application to physical field theory is also briefly discussed.

  7. IV and CV curves for irradiated prototype BTeV silicon pixel sensors

    Energy Technology Data Exchange (ETDEWEB)

    Maria R. Coluccia et al.

    2002-07-16

    The authors present IV and CV curves for irradiated prototype n{sup +}/n/p{sup +} silicon pixel sensors, intended for use in the BTeV experiment at Fermilab. They tested pixel sensors from various vendors and with two pixel isolation layouts: p-stop and p-spray. Results are based on exposure with 200 MeV protons up to 6 x 10{sup 14} protons/cm{sup 2}.

  8. Pengaruh Pengawasan Dan Evaluasi Terhadap Efisiensi Kerja Karyawan Pada CV. Aulia Karya Utama Sibolga

    OpenAIRE

    Rahmat, Aulia

    2012-01-01

    Aim to undertake this work is to investigate and analyze the influence of supervision and evaluation of employee work efficiency CV. Aulia Karya Utama Sibolga. Supervision is a process of monitoring employee activity, keeping the organization in order to keep walking towards the achievement of targets, and make corrections if necessary for the implementation of tasks in accordance with the original plan.Evaluation is the process of assessment, both assessments are neutral, negative, or positi...

  9. Real-time detecting and tracking ball with OpenCV and Kinect

    Science.gov (United States)

    Osiecki, Tomasz; Jankowski, Stanislaw

    2016-09-01

    This paper presents a way to detect and track ball with using the OpenCV and Kinect. Object and people recognition, tracking are more and more popular topics nowadays. Described solution makes it possible to detect ball based on the range, which is set by the user and capture information about ball position in three dimensions. It can be store in the computer and use for example to display trajectory of the ball.

  10. A real-time camera calibration system based on OpenCV

    Science.gov (United States)

    Zhang, Hui; Wang, Hua; Guo, Huinan; Ren, Long; Zhou, Zuofeng

    2015-07-01

    Camera calibration is one of the essential steps in the computer vision research. This paper describes a real-time OpenCV based camera calibration system, and developed and implemented in the VS2008 environment. Experimental results prove that the system to achieve a simple and fast camera calibration, compared with MATLAB, higher precision and does not need manual intervention, and can be widely used in various computer vision system.

  11. Callus formation from leaf mesophyll protoplasts of Malus Xdomestica Borkh. cv. Greensleeves.

    Science.gov (United States)

    Doughty, S; Power, J B

    1988-05-01

    Large yields (1.85 × 10(7)/g.f.wt.) of viable protoplasts were obtained from leaves of axenic shoot cultures of Malus Xdomestica Borkh. cv. 'Greensleeves'. Protoplasts cultured in liquid or agarose semi-solidified KM8P medium underwent cell wall regeneration and colony formation.Protoplast-derived cell colonies developed to callus on semi-solid KM8 medium. This is the first report of callus formation from mesophyll protoplasts of apple.

  12. BATATA: a buried muon hodoscope

    Science.gov (United States)

    Sánchez, F.; Supanitsky, A. D.; Medina-Tanco, G.; Paic, G.; Salazar, M. E. Patiño; D'Olivo, J. C.; Molina, R. Alfaro

    2009-04-01

    Muon hodoscopes have several applications, ranging from astrophysics to fundamental particle physics. In this work, we present a detector dedicated to the study, at ground level, of the main signals of cosmic-ray induced showers above 6 PeV. The whole detector is composed by a set of three parallel dual-layer scintillator planes buried at fix depths ranging from 120 g/cm2 to 600 g/cm2 and by a triangular array of water cerenkov detectors located nearby on ground.

  13. Uma análise do efeito do aquecimento global na produção de batata no Brasil An analysis of the potato production in Brazil upon global warming

    Directory of Open Access Journals (Sweden)

    CA Lopes

    2011-03-01

    Full Text Available Face às prováveis mudanças climáticas afetando as áreas agricultáveis do planeta, foi feita uma revisão bibliográfica sobre os efeitos do aumento da temperatura no metabolismo da planta de batata, enfatizando suas consequências no desenvolvimento vegetativo e na produtividade da cultura. Embora a ênfase maior desse artigo se prenda ao efeito do clima na redução de alimentos, alerta-se ainda para o risco de erosão genética pelo desaparecimento de espécies silvestres, de grande importância para programas de melhoramento genético. A partir dessas informações e de dados climáticos das regiões produtoras publicados em literatura nacional, foi realizada uma análise prospectiva da produção de batata no Brasil. Para tal, tomou-se como base o aumento da temperatura de até 5ºC até o final deste século e uma faixa ótima de produtividade da batata de 10ºC a 25ºC, conforme indicado em literatura especializada. Foram selecionados seis municípios representando as regiões geográficas onde se cultiva a batata: São Joaquim-SC; Guarapuava-PR; Cristalina-GO; Mucugê-BA; Vargem Grande do Sul-SP e Araxá-MG. Para municípios com prevalência de temperaturas mais baixas, como São Joaquim, o aumento de temperatura preconizado não deverá restringir a produção, porém serão necessárias adequações de épocas de plantio. Por outro lado, a situação é preocupante em regiões e épocas de cultivo sujeitas a temperaturas altas, como Mucugê e Cristalina, onde o cultivo deverá se restringir a poucos meses do ano, contrastando com o plantio contínuo, durante o ano todo, ora sendo realizado. O intuito deste artigo é alertar, e não alarmar, a cadeia produtiva de batata no sentido de se preparar para os ajustes fitotécnicos visando a preservar a bataticultura nacional face a um eventual aquecimento global. Considerações sobre o melhoramento genético para atenuar, pelo menos em parte, esta situação é discutida.The future of

  14. Influência dos tipos de óleos e tempos de fritura na perda de umidade e absorção de óleo em batatas fritas Influence of the oil type and frying time on the moisture loss and oil absorption by potatoes chips

    Directory of Open Access Journals (Sweden)

    Neuza Jorge

    2005-06-01

    Full Text Available Objetivou-se com este trabalho conhecer a influência dos tipos de óleos e tempos de fritura na perda de umidade e absorção de óleo em batatas fritas. Os experimentos foram conduzidos com frituras de batatas empregando óleos de girassol, milho e soja, submetidos em diferentes tempos, à temperatura de 175ºC. Amostras de batatas fritas foram analisadas por meio das determinações de umidade e teor lipídico, após primeira, quinta, décima e décima-quinta fritura. Análise de variância e teste de Tukey foram aplicados aos dados experimentais a níveis de 1 e 5% de significância. Verificou-se que batatas quando fritas em óleo de soja absorveram menor quantidade de óleo, diferindo significativamente daquelas fritas nos demais óleos estudados, além de ter obtido maior teor de umidade ao longo de todo o processo. No entanto, para o teor lipídico, batatas fritas em óleos de girassol e milho não diferiram significativamente entre si.The objective of this study was to determine the influence of the oil type and the frying time on oil absorption and moisture loss by potato chips. Sliced potatoes were fried in sunflower, corn or soybean oils, at 175ºC, for 10 minutes and different times. Samples of potatoes were analyzed for moisture and lipid contents after 1, 5, 10 and 15 fryings. Analysis of variance and Tukey test were applied to the experimental data at 1 and 5% level of significance. It was verified that the soybean oil resulted in smaller absorption by the potatoes, in comparison with the other oils studied, and higher moisture contents in the fried potatoes. Regarding lipid contents, potato chips fried in sunflower and corn oils didn't differ significantly.

  15. Exploring the SDSS Data Set with Linked Scatter Plots. I. EMP, CEMP, and CV Stars

    Science.gov (United States)

    Carbon, Duane F.; Henze, Christopher; Nelson, Bron C.

    2017-02-01

    We present the results of a search for extremely metal-poor (EMP), carbon-enhanced metal-poor (CEMP), and cataclysmic variable (CV) stars using a new exploration tool based on linked scatter plots (LSPs). Our approach is especially designed to work with very large spectrum data sets such as the SDSS, LAMOST, RAVE, and Gaia data sets, and it can be applied to stellar, galaxy, and quasar spectra. As a demonstration, we conduct our search using the SDSS DR10 data set. We first created a 3326-dimensional phase space containing nearly 2 billion measures of the strengths of over 1600 spectral features in 569,738 SDSS stars. These measures capture essentially all the stellar atomic and molecular species visible at the resolution of SDSS spectra. We show how LSPs can be used to quickly isolate and examine interesting portions of this phase space. To illustrate, we use LSPs coupled with cuts in selected portions of phase space to extract EMP stars, CEMP stars, and CV stars. We present identifications for 59 previously unrecognized candidate EMP stars and 11 previously unrecognized candidate CEMP stars. We also call attention to 2 candidate He ii emission CV stars found by the LSP approach that have not yet been discussed in the literature.

  16. Analisis Pengaruh Kemampuan, Usaha dan Dukungan Perusahaan terhadap Kinerja Karyawan pada CV Sandang Gloria Konveksindo

    Directory of Open Access Journals (Sweden)

    Jerry Logahan

    2012-05-01

    Full Text Available Clothing Konveksindo CV Gloria is a trading company engaged in the sale of products and clothing items. Therefore, the performance of employees is very important in achieving that goal. The purpose of this study was to analyze the influence of ability, effort, and support the company towards the employee's performance CV Gloria Konveksindo Clothing. The method of analysis used in this study is descriptive, Pearson Regression, and Multiple Regression. Data obtained from the appraisal of employee performance by filling in the questionnaire that has been provided by using a Likert scale that is useful to know the degree of disagreement and agreement existing employees to the question on the questionnaire. The results achieved in this study were the ability of employees to work have an influence for 28.8% of employee performance, employee efforts in working to have the effect of 50.6% on employee performance, corporate support for work processes have the effect of 47.7% the performance of employees, while the ability of employees, employee efforts, and support the company has influence for 66.3% of the employee's performance CV Gloria Konveksindo Clothing. With this capability expected of employees, employee efforts, and support the company serve as the main factor to improve employee performance.

  17. Anthelmintic Activities of Aporphine from Nelumbo nucifera Gaertn. cv. Rosa-plena against Hymenolepis nana

    Directory of Open Access Journals (Sweden)

    Rong-Jyh Lin

    2014-02-01

    Full Text Available Nelumbo nucifera Gaertn. cv. Rosa-plena (Nelumbonaceae, commonly known as lotus, is a perennial aquatic plant grown and consumed throughout Asia. All parts of N. nucifera have been used for various medicinal purposes in oriental medicine. From the leaves of Nelumbo nucifera Gaertn. cv. Rosa-plena (an aquatic plant, liriodenine (1, lysicamine (2, (--anonaine (3, (--asimilobine (4, (--caaverine (5, (--N-methylasimilobine (6, (--nuciferine (7, (--nornuciferine (8, (--roemerine (9, 7-hydroxydehydronuciferine (10 and cepharadione B (11 were isolated and identification and anthelmintic activities of aporphine was evaluated against Anisakis simplex and Hymenolepis nana. This study found that the above constituents killed H. nana or reduced their spontaneous movements (oscillation/peristalsis. However, the above constituents at various concentrations demonstrated no larvicidal effect or ability to halt spontaneous parasite movement for 72 h against A. simplex, respectively. In addition, according to an assay of cestocidal activity against H. nana and nematocidal activity against A. simplex, we found that the above compounds showed greater lethal efficacy on H. nana than against A. simplex. Further investigation showed that these above constituents have effects against peroxyl radicals under cestocidal effect. Together, these findings suggest that these constituents of Nelumbo nucifera Gaertn. cv. Rosa-plena might be used as anthelmintic agents against H. nana.

  18. AT3 (Acyltransferase Gene Isolated From Capsicum frutescens cv. Cakra Hijau

    Directory of Open Access Journals (Sweden)

    Mohamad Habibi

    2013-05-01

    Full Text Available Chili pepper is widely used and cultivated by Indonesian people. There are three species of chili pepper, i.e.: Capsicum annuum L., Capsicum frutescens L., and Capsicum violaceum HBK. Capsicum frutescens L. has a higher economic value due to its pungency and carotenoid content. C. frutescens has several cultivars, one of those is Capsicum frutescens cv. Cakra Hijau. This cultivar is resistant against pest and disease and has very high pungency. This special character of chili pepper is born by its secondary metabolic, Capsaicin. Moreover, capsaicin also serves as defense mechanism, antiarthritis, analgesic, and anticancer. This study aimed to isolate Acyltransferase (AT3 gene which encoding Capsaicin Synthase (CS enzyme. AT3 gene was isolated through PCR using forward primer 5’-ATG GCT TTT GCA TTA CCA TCA-3’ and reverse primer 5’-CCT TCA CAA TTA TTC GCC CA-3’. Data were analyzed using DNA Baser, BLAST, and ClustalX. This study has successfully isolated 404 bp fragments of AT3 gene. This fragments located at 1918-1434 bp referred to AT3 gene from Capsicum frutescens cv. Shuanla. Isolation of upstream and downstream fragments of AT3 gene from Capsicum frutescens cv. Cakra Hijau is undergoing.

  19. Anthelmintic activities of aporphine from Nelumbo nucifera Gaertn. cv. Rosa-plena against Hymenolepis nana.

    Science.gov (United States)

    Lin, Rong-Jyh; Wu, Mei-Hsuan; Ma, Yi-Hsuan; Chung, Li-Yu; Chen, Chung-Yi; Yen, Chuan-Min

    2014-02-27

    Nelumbo nucifera Gaertn. cv. Rosa-plena (Nelumbonaceae), commonly known as lotus, is a perennial aquatic plant grown and consumed throughout Asia. All parts of N. nucifera have been used for various medicinal purposes in oriental medicine. From the leaves of Nelumbo nucifera Gaertn. cv. Rosa-plena (an aquatic plant), liriodenine (1), lysicamine (2), (-)-anonaine (3), (-)-asimilobine (4), (-)-caaverine (5), (-)-N-methylasimilobine (6), (-)-nuciferine (7), (-)-nornuciferine (8), (-)-roemerine (9), 7-hydroxydehydronuciferine (10) and cepharadione B (11) were isolated and identification and anthelmintic activities of aporphine was evaluated against Anisakis simplex and Hymenolepis nana. This study found that the above constituents killed H. nana or reduced their spontaneous movements (oscillation/peristalsis). However, the above constituents at various concentrations demonstrated no larvicidal effect or ability to halt spontaneous parasite movement for 72 h against A. simplex, respectively. In addition, according to an assay of cestocidal activity against H. nana and nematocidal activity against A. simplex, we found that the above compounds showed greater lethal efficacy on H. nana than against A. simplex. Further investigation showed that these above constituents have effects against peroxyl radicals under cestocidal effect. Together, these findings suggest that these constituents of Nelumbo nucifera Gaertn. cv. Rosa-plena might be used as anthelmintic agents against H. nana.

  20. Teaching image processing and pattern recognition with the Intel OpenCV library

    Science.gov (United States)

    Kozłowski, Adam; Królak, Aleksandra

    2009-06-01

    In this paper we present an approach to teaching image processing and pattern recognition with the use of the OpenCV library. Image processing, pattern recognition and computer vision are important branches of science and apply to tasks ranging from critical, involving medical diagnostics, to everyday tasks including art and entertainment purposes. It is therefore crucial to provide students of image processing and pattern recognition with the most up-to-date solutions available. In the Institute of Electronics at the Technical University of Lodz we facilitate the teaching process in this subject with the OpenCV library, which is an open-source set of classes, functions and procedures that can be used in programming efficient and innovative algorithms for various purposes. The topics of student projects completed with the help of the OpenCV library range from automatic correction of image quality parameters or creation of panoramic images from video to pedestrian tracking in surveillance camera video sequences or head-movement-based mouse cursor control for the motorically impaired.

  1. Physicochemical Composition, Phenolic Content and Antioxidant Activity of Sour Cherry cv. Marasca During Ripening

    Directory of Open Access Journals (Sweden)

    Sandra Pedisić

    2007-12-01

    Full Text Available Sour cherry cv. Marasca is Dalmatian cultivar from XVI century. Cultivation is limited on the north and central part of Dalmatia and on the part of the islands, where it achieves the best quality of fruit, high content of dry matter and sugar respectively, agreeable aroma and intense color. Sour cherry cv. Marasca is source of biologically active ingredients, organic and inorganic compounds, dietary fibers, aromatic compounds and high content of phenolic compounds, particularly anthocyanins and hormone melatonin. Many epidemiological studies showed that phenolic compounds have antioxidant and anti-inflammatory properties, and they have beneficial effect on human health. Marasca is rich with mentioned compounds. Physicochemical composition (total and soluble dry matter, pH value, total acidity during ripening of cv. Marasca ecotype Recta (Cerasus marasca recta grown in Zadar and Split area were determined. Total and soluble dry matter increased and pH value and total acidity showed little change during ripening. The content of phenolic compounds increased during ripening as well as content of anthocyanins, while antioxidant activity decreased with ripening. That indicates there was no correlation between antioxidant activity and content of total phenolic compounds.

  2. Utrophins compensate for Dp71 absence in mdx3cv in adhered platelets.

    Science.gov (United States)

    Cerecedo, Doris; Mondragón, Ricardo; Candelario, Aurora; García-Sierra, Francisco; Mornet, Dominique; Rendón, Alvaro; Martínez-Rojas, Dalila

    2008-01-01

    Platelet adhesion is a critical step due to its hemostatic role in stopping bleeding after vascular damage. Short dystrophins are the most abundant dmd gene products in nonmuscle tissues, and in association with cytoskeleton proteins contribute to their intrinsic function; while utrophins are dystrophin-homologous related family proteins with structural and functional similarities. We previously demonstrated the presence of Dp71 isoforms, utrophins, and various dystrophin-associated proteins and their participation in cytoskeleton re-organization, filopodia and lamellipodia extension, and in centralizing cytoplasmic granules during the adhesion process of human platelets. To evaluate the morphologic changes and actin-based structures of mdx(3cv) platelets during the adhesion process, we compared the topographic distribution of Dp71d/Dp71Delta110(m) and dystrophin-associated protein in adhered platelets from dystrophic mdx(3cv) mouse. By confocal microscopy, we showed that absence of Dp71 isoforms in platelets from this animal model disrupted dystrophin-associated protein expression and distribution without modifying the platelet morphology displayed during the glass-adhesion process. By immunoprecipitation assays, we proved that up-regulated utrophins were associated with dystrophin-associated proteins to conform the dystrophin-associated protein complex corresponding to utrophins, which might compensate for Dp71 absence in mdx(3cv) platelets.

  3. Programación de Aplicaciones OpenCV sobre Sistemas Heterogéneos SoC-FPGA

    OpenAIRE

    Sanchis Cases, Francisco José

    2014-01-01

    OpenCV es una biblioteca de primitivas de procesado de imagen que permite crear algoritmos de Visión por Computador de última generación. OpenCV fue desarrollado originalmente por Intel en 1999 para mostrar la capacidad de procesamiento de los micros de Intel, por lo que la mayoría de la biblioteca está optimizada para correr en estos micros, incluyendo las extensiones MMX y SSE. http://en.wikipedia.org/wiki/OpenCV. Actualmente es ampliamente utilizada tanto por la comunidad científica como p...

  4. Aminoethoxivinilglicina no controle do amadurecimento de frutos de caqui cv. Fuyu Aminoethoxyvinylglycine in the ripening control of persimmon fruits cv. Fuyu

    Directory of Open Access Journals (Sweden)

    Angela Fuentes Fagundes

    2006-04-01

    Full Text Available Objetivou-se avaliar o efeito de aminoethoxivinilglicina (AVG, aplicado na pós-colheita, no amadurecimento de frutos de caqui (Diospyros kaki L. cv. Fuyu, armazenados à temperatura de 0 ± 2 ºC. Os frutos foram imersos durante dois minutos em solução de AVG, na concentração de 0; 415; 830 e 1.200 g ha-1 e dissolvidos em água destilada e adição de espalhante adesivo (óleo vegetal a 0,02% (v/v, secos à temperatura ambiente no barracão e armazenados em câmara fria a 0 ± 2 ºC e 95±2 % UR, e avaliados aos 32 e 52 dias com relação à firmeza, sólidos solúveis, pH da polpa, acidez titulável e injúria por frio. O AVG mostrou-se promissor no uso pós-colheita em caqui, onde os frutos tratados conservaram índices de firmeza linear em função da dose e teores de AT, SS e pH aceitáveis para o 'Fuyu'. Porém os frutos apresentaram translucidez, característica de injúria por frio, indicando a necessidade de novos estudos para se compreender a fisiologia pós-colheita deste fruto.An experiment was carried out to analyze the effect of the application of Aminoethoxyvinylglycine (AVG in post harvest application in persimmon fruits (Diospyros kaki L. cv. Fuyu stored at a temperature of 0 ± 2ºC. The fruits were immersed for two minutes into an AVG solution at a concentration of 0; 415; 830; 1200 g ha-1 and dissolved in distillated water. Then it was added adhesive spreader (vegetable oil 0.02% (v/v, dried at room temperature and stored at 0 ± 2 ºC and 95±2 % humidity. The treatments were evaluated on the 32nd and 52nd days to check the firmness, soluble solids, pH of the pulp, tritable acidity and chilling injury. The AVG may be promising in post harvest use with persimmon fruits, where treated fruits preserved linear levels of firmness in function of the doses and TA, SS and pH levels are acceptable for cv. Fuyu. However, fruits showed translucency, which are characteristics of chilling injury, indicating that new studies are

  5. Plant regulators for rooting of hardwood cuttings of blackberry plants cv. Xavante/ Reguladores vegetais no enraizamento de estacas lenhosas da amoreira-preta cv. Xavante

    Directory of Open Access Journals (Sweden)

    Renato Vasconcelos Botelho

    2008-08-01

    Full Text Available Aiming to evaluate the use of plant regulators for rooting of hardwood cuttings of blackberry cv. Xavante, two experiments were carried out in a greenhouse. In the first one the concentrations of indolil butyric acid varied in 0, 1000, 1500, 2000, 2500 and 3000 mg L-1. And in the second one, the plant regulator that was used was paclobutrazol at the concentrations of 0, 200, 400, 600, 800 and 1000 mg L-1. For each experiment the base of the cuttings were dipped in the solutions for ten seconds. After that, the cuttings were planted in rigid plastic vases with sand and kept under intermittent misty system. The following variables were evaluated, 71 days after planting: percentage of rooted cuttings, percentage of callus presence, average length of roots, number of roots, fresh weight of roots, percentage of sprouting. The treatment of hardwood cuttings with 2000 mg L-1 IBA had the greatest percentage of rooting (60%. Nevertheless, the treatment with 1000 mg L-1 IBA attained already high rooting percentage (56%, with 96% of sprouted cuttings and 17.6 roots per cutting. Cuttings treated with PBZ presented greater callus presence but they did not root, thus it is not possible to recommend this product for rooting of blackberry plants cv. Xavante among the tested concentrations.Com o objetivo de avaliar o emprego de reguladores vegetais no enraizamento de estacas lenhosas da amora-preta cv. Xavante dois experimentos foram conduzidos em casa-de-vegetação. No primeiro, empregou-se o ácido indol butírico (AIB nas concentrações de 0, 1000, 1500, 2000, 2500, 3000 mg L-1. No segundo, o regulador utilizado foi o paclobutrazol (PBZ nas concentrações de 0, 200, 400, 600, 800, 1000 mg L-1. Em ambos os experimentos as estacas ficaram imersas por 10 segundos nas respectivas soluções. Posteriormente foram plantados em vasos de plástico rígido contendo areia, sendo mantidas em casade- vegetação sob nebulização intermitente. Após 71 dias do plantio

  6. Estabilidade de compostos bioativos em polpa congelada de amora-preta (Rubus fruticosus cv. Tupy Stability of bioactive compounds in frozen pulp of blackberry (Rubus fruticosus cv. Tupy

    Directory of Open Access Journals (Sweden)

    Andresa Carolina Jacques

    2010-01-01

    Full Text Available Rubus fruticosus (Rosaceae, popularly known as Blackberry, is a highly nutritious fruit, rich in bioactive compounds. Their stability during processing has been the focus of several studies. This work describes the evaluation of the stability of the main phytochemicals of pulp from blackberry cv. Tupy, stored under different temperature conditions for six months. The storage at -10 °C was not sufficient to cause significant changes in total phenolics content, anthocyanins content and antioxidant capacity during two months of storage. Likewise, at -18 °C, total phenolics content and antioxidant capacity were kept for four months, but total anthocyanins and β-carotene content were kept for two and six months of storage, respectively.

  7. Sistemas de previsão de requeima em cultivos de batata em Santa Maria, RS Forecast systems of late blight in potato crops in Santa Maria, Rio Grande do Sul State, Brazil

    Directory of Open Access Journals (Sweden)

    Leosane Cristina Bosco

    2010-01-01

    Full Text Available Os sistemas de previsão constituem alternativa para o controle eficiente da requeima em batata e consequente redução da quantidade de fungicidas utilizados, dos custos de produção e da poluição ambiental. O objetivo deste trabalho foi avaliar os sistemas de previsão de ocorrência de requeima, Blitecast e Prophy, em cultivos de primavera e outono de batata, cultivar Macaca, suscetível a requeima, na região produtora de Santa Maria (RS. Os experimentos foram desenvolvidos na primavera de 2006 e outono de 2007 com a cultivar Macaca. Os dados meteorológicos foram coletados no centro da área experimental com uma estação automática e com psicrômetros instalados em diferentes níveis. Os tratamentos foram arranjados no delineamento inteiramente casualizado, com quatro repetições, sendo diferenciados por meio dos valores de severidade acumulados, calculados pelos sistemas de previsão Blitecast e Prophy. Os valores de severidade acumulados foram utilizados como indicadores do momento de aplicação de fungicida para o controle da requeima. Verificou-se que a utilização do sistema de previsão de requeima Prophy, com acúmulo de 15, 20 ou 25 valores de severidade e do sistema Blitecast com 24 valores de severidade acumulados, para o genótipo de batata suscetível, Macaca, permite reduzir o número de aplicações de fungicidas sem afetar significativamente a produtividade de tubérculos comerciais.The forecast systems are an alternative to the efficient control of late blight potatoes and consequent reduction in the amount of fungicide and thereby reduce production costs and environmental pollution. The objective of this study was to evaluate forecast systems, Blitecast and Prophy, for late blight occurrence in Macaca potato cultivar in Santa Maria, Rio Grande do Sul State, Brazil. The experiments were carried out during Spring 2006 and Autumn 2007 with the Macaca cultivar characterized as susceptible to late blight. Meteorological

  8. Características produtivas e qualitativas de ramas e raízes de batata-doce Productive and qualitative characteristics of the vines and roots of sweet potato

    Directory of Open Access Journals (Sweden)

    Valter C de Andrade Júnior

    2012-12-01

    Full Text Available A batata-doce é uma hortaliça que se destaca pela versatilidade no uso, podendo ser empregada tanto na alimentação humana como animal. Seu cultivo é relativamente fácil e barato, o que, juntamente com sua adaptabilidade a variadas condições edafo-climáticas, viabiliza sua produção pelos agricultores familiares. Objetivou-se avaliar a produção de massa verde e massa seca da parte aérea para utilização na alimentação animal e a produtividade e a qualidade das raízes tuberosas de clones de batata-doce para utilização na alimentação humana. O delineamento experimental utilizado foi em blocos casualizados, com doze clones e quatro repetições. Foram avaliados clones de batata-doce pertencentes ao banco de germoplasma da UFVJM juntamente com as cultivares comerciais Brazlândia Roxa e Brazlândia Rosada, colhidos aos seis meses após o plantio. Foram avaliadas a produção de massa verde e massa seca da parte aérea e a produtividade e qualidade das raízes tuberosas. O clone BD-45 destacou-se na produção de massa verde, produção de massa seca e nas produtividades total e comercial de raízes com valores de 19,7; 3,3; 32,9 e 29,5 t ha-1, respectivamente. A maioria dos genótipos avaliados apresentou raízes com formato próximo ao ideal para comercialização e boa resistência a insetos de solo com valores de notas próximos a 2,0. Foram observadas diferenças significativas entre os genótipos para os teores de amido e açúcares totais e redutores. Os genótipos apresentaram composição centesimal semelhante, exceto para o teor de cinzas. Os clones BD-67 e BD-56 apresentaram teores de cinzas mais elevados que o Cambraia, e semelhantes aos demais clones.Sweet potato is a versatile vegetable which can be used both as human and animal food. The relatively easy and inexpensive cultivation of this vegetable associated with the crop adaptability to several conditions of soil and climate enable the production of sweet potato

  9. Produtividade simulada de tubérculos de batata em cenários de mudanças climáticas Potato tuber simulated yield in climate change scenarios

    Directory of Open Access Journals (Sweden)

    Joelma Dutra Fagundes

    2010-04-01

    Full Text Available The objective of this study was to simulate potato (Solanum tuberosum tuber yield in different climate change scenarios of increased carbon dioxide concentration [CO2] and air temperature, considering symmetric and asymmetric increases in minimum and maximum daily air temperatures. Spitters model was used to simulate Asterix cultivar tuber yield considering two growing seasons (spring and fall recommended for Santa Maria, state of Rio Grande do Sul, Brazil. In each growing season, five planting dates were evaluated in climate scenarios of a hundred years with no increase in [CO2] and temperature (current scenario, and in scenarios with doubling [CO2] and temperature increases of 0, 1, 2, 3, 4, 5 and 6ºC. A symmetric increase of 4ºC and an asymmetric increase of 5ºC in air temperature offset the yield beneficial effect of increasing [CO2] during spring, whereas increase in air temperature does not affect potato tuber yield during fall. Anticipating planting date in spring and delaying it in fall decrease the negative impact of the increasing air temperature on potato tuber yield.O objetivo deste trabalho foi simular a produtividade de tubérculos de batata (Solanum tuberosum em diferentes cenários climáticos de aumento da concentração de dióxido de carbono [CO2] e da temperatura do ar, considerando aumentos simétricos e assimétricos nas temperaturas mínimas e máximas diárias do ar. Utilizou-se o modelo de Spitters para simular a produtividade de tubérculos da cultivar Asterix, em duas épocas de cultivo (primavera e outono, recomendadas para a região de Santa Maria, RS. Em cada época, cinco datas de plantio foram avaliadas, em cenários climáticos de cem anos sem aumentos na [CO2] e na temperatura (cenário atual, e em cenários com o dobro da [CO2] atual e aumentos de 0, 1, 2, 3, 4, 5 e 6ºC na temperatura. No cultivo de primavera, o aumento simétrico de 4ºC, nas temperaturas mínimas e máximas diárias do ar, e assim

  10. Image Process Technology for Weeding Robots Based on OpenCV%基于 OpenCV 的除草机器人图像处理技术

    Institute of Scientific and Technical Information of China (English)

    刘立强; 蔡晓华; 吴泽全

    2013-01-01

    In order to achieve real-time processing of video images of weeding robot , based on Intel's open source vision library OpenCV technology , this paper puts forward a weeding robot video image processing method , and give the overall program .Using this scheme design weeding robot real-time video image processing system , and in the soil bin testing lab for verification .The test results show that the system can complete the high-speed processing of video images and the po-sitioning of crop plants , All these work provide a solid foundation for the realization of weeding robot end actuator precise motion control .%为实现除草机器人视频图像实时处理,基于Intel 开源视觉库OpenCV 技术,提出了一种除草机器人视频图像处理方法,并给出了整体方案。利用该方案设计除草机器人视频图像实时处理系统,并在土槽实验室进行试验验证。试验结果表明,该系统能够完成视频图像高速处理与作物植株定位,从而为实现除草机器人末端执行机构精确运动控制打下了坚实基础。

  11. EPIDEMIA DE PINTA-PRETA DA BATATA E COMPARAÇÃO DE MÉTODOS PARA DETERMINAR O INÍCIO DOS SINTOMAS DA DOENÇA NA CULTURA DE BATATA EM CAMPO POTATO EARLY BLIGHT EPIDEMICS AND COMPARISON OF METHODS TO DETERMINE ITS INITIAL SYMPTOMS IN A POTATO FIELD

    Directory of Open Access Journals (Sweden)

    Rodrigo Orlando Campo Arana

    2007-12-01

    Full Text Available Três experimentos foram montados entre os anos de 2000 e 2002, em condições de campo, de Viçosa, estado de Minas Gerais, com a finalidade de avaliar o efeito de epidemias de pinta-preta (Alternaria solani na produção de batata (Solanum tuberosum e determinar o inicio de sintomas da pinta preta na cultura de batata. Usando o método de gradiente de severidade da doença, foram obtidas em cada experimento quatro epidemias da doença, com diferentes severidades, desde D1 até D4, em ordem decrescente, o que permitiu comparar o efeito das epidemias no crescimento da planta e na produção de tubérculos, bem como determinar o momento de se iniciar o controle da doença. Tendo como base o tempo desde o plantio até o aparecimento dos primeiros sintomas da epidemia, foram avaliados os seguintes métodos para previsão da doença: dias acumulados (DA; graus-dia acumulados (GD, tendo como temperatura-base 7ºC; e dias fisiológicos acumulados (DF, tendo como temperatura mínima 7ºC, máxima de 30ºC e ótima de 21ºC. O estabelecimento do gradiente da doença mostrou diferenças significativas na produção em cada experimento. As maiores reduções na produção dos tubérculos ocorreram na parcela não tratada com fungicida D1, com 49,6% em 2000; 52,7% em 2001; e 58,2% em 2002. A previsão da epidemia utilizando-se os métodos DA e GD não indicou o momento certo para iniciar o controle da epidemia. O método DF foi o mais adequado, estabelecendo-se o primeiro sintoma entre 240 e 333 DF. Conclui-se que a pinta-preta, dependendo da severidade, afeta a área foliar e a produção de tubérculos. Dos métodos para determinar o estabelecimento da pinta-preta, o DF apresentou o maior potencial, recomendando-se seu uso para iniciar o manejo da doença aos 250 DF após o plantio, sempre e quando as condições ambientais favorecem o estabelecimento do patógeno.The influence of an early blight epidemic on potato tuber yield was evaluated in three

  12. Effect of Needling at CV-12 (Zhongwan on Blood Glucose Levels in Healthy Volunteers: A Pilot Randomized Placebo Controlled Trial

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    Sriloy Mohanty

    2016-12-01

    Conclusion: The result of this study suggests that although 20 minutes of needling at CV-12 without stimulation produced a mild reduction in RBG levels in healthy volunteers, it did not produce a statistically significant result.

  13. Thermal performance of a top heat mode closed-loop oscillating heat pipe with a check valve (THMCLOHP/CV)

    Science.gov (United States)

    Bhuwakietkumjohn, N.; Parametthanuwat, T.

    2015-05-01

    The aim of this research is to investigate the heat transfer characteristics of a top heat mode closed-looped oscillating heat pipe with check valves (THMCLOHP/CV). Ethanol is used as a working fluid with filling ratios of 30, 50, and 80% of the total volume of the tube. The THMCLOHP/CV is made of a copper tube with an inside diameter of 2.03 mm. The angle of inclination is 90° from the horizontal axis with 40 turns, two check valves, and an evaporator length of 50, 100, and 150 mm. The operating temperatures are 44 and 55°C. It is found that the thermal resistance decreases significantly as the working temperature is increased. Thus, the evaporator length affects the thermal resistance of the THMCLOHP/CV. The presence of the THMCLOHP/CV is clearly demonstrated to contribute to thermal performance improvement.

  14. A combined SEM, CV and EIS study of multi-layered porous ceramic reactors for flue gas purification

    DEFF Research Database (Denmark)

    He, Zeming; Andersen, Kjeld Bøhm; Nygaard, Frederik Berg;

    2013-01-01

    The effect of sintering temperature of 12-layered porous ceramic reactors (comprising 5 cells) was studied using scanning electron microscopy (SEM), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The difference in microstructures of the reactors was evaluated by SEM...

  15. Efeito do eptc + r 25788 em combinação com o diuron no controle de plantas daninhas e seletividade para a cultura da batata-doce Weed control in sweet potato

    Directory of Open Access Journals (Sweden)

    Maurílio F. de Oliveira

    1997-01-01

    Full Text Available Com o objetivo de avaliar o efeito das doses de EPTC + R 25788 combinadas com doses de diuron no controle de plantas daninhas na cultura de batata-doce, realizou-se um ensaio sob condições de campo num Podzólico Vermelho Amarelo, fase terraço, argiloso, com 3,5 % de matéria orgânica. Foram avaliadas quatro doses de EP TC + R 25 78 8 aplicado em pré-plantio incorporado: 0,0; 1,6; 3,2 e 4,8 kg/ha por quatro doses dediuron : 0,0 ; 0,8 ; 1,2 e 1,6 kg/ha, em quatro repetições. O EPTC + R25788 apresentou bom controle das plantas de tiririca quando aplicado nas maiores doses, principalmente na ausência do diuron. As maiores doses de EPTC + R 25788 aplicadas isoladamente, apresentaram significativos aumentos na população de plantas de folhas largas. As maiores doses de diuron promoveram melhor controle das plantas de folhas largas, na presença das maiores doses de EPTC + R 25788. A combinação das maiores doses dos herbicidas não refletiram em maiores produções. A maior produção de batata-doce ocorreu quando se aplicou 6 L/ha de Eradicane e 1,32 kg/ha de Karmex 800.Four levels of EPTC + R 25788 (0.0; 1.6; 3.2 e 4.8 kg/ha and diuron (0.0; 0.8; 1.2 and 1.6 kg/ha with four replications were evaluated in a fatorial field experiment in a Utisol containg 3.5 % organic matter. Better control of nutsedge was obtained with the highest dosage of EPTC + R 25788, mainly in the absence of diuron. However, when the highest eradicane levels were applied as single treatments there was a marked increase in the broadleaf weed population. The best control of broadleaf weed population was achieved when the highest diuron levels were combined with the highest EPTC + R 25788 levels although this condition have not resulted in highest productions. The greatest sweet potato production was obtained with the combination of 6 1/ha of Eradicane plus 1.32 kg/ha of Karmex 800.

  16. Caída de presión en lecho fijo de cubos de papa, remolacha y zanahoria considerando encogimiento Queda de pressão em leito fixo de cubos de batata, beterraba e cenoura considerando encolhimento

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    Javier Telis-Romero

    2003-12-01

    Full Text Available En este trabajo fue determinada experimentalmente la porosidad de lechos de cubos de papa, remolacha y zanahoria en función de la humedad con aristas iniciales de 8mm. La porosidad del lecho, con diferentes contenidos de humedad obtenida por secado a 70ºC por diferentes tempos, fue calculada utilizando las determinaciones experimentales de volumen del lecho y volumen real de las partículas. Estos dos volumenes fueran bien representados por ecuaciónes lineares basadas en la Ley de la aditividad de los volumens. La porosidad fue representada satisfactoriamente por una ecuación parabólica. La relación volumen del lecho adimensional y humedad fue representada por polinomios de tercer grado. Utilizando un equipamiento con sistema de control, fue determinada experimentalmente la caída de presión a través de un lecho fijo de cubos de papas, zanahoria y remolacha de 100mm de espesura y los resultados fueron representados de manera satisfactoria por una ecuación obtenida por una modificación empírica del modelo de Ergun. Como era de esperarse, la caída de pression aumento com la disminución de la porosidad del lecho, consequencia del encogimiento de los productos.Neste trabalho, o porosidade de leitos de cubos de batata, beterraba e cenoura com arestas iniciais de 8mm, foi determinada experimentalmente em função da umidade. A porosidade do leito, com diferentes umidades, obtidas por secagem a 70ºC por tempos diferentes, foi calculada utilizando-se as determinações experimentais de volume do leito e volume real das partículas. Esses dois volumes foram bem representados por equações lineares baseadas na lei da adtividade dos volumes. A porosidade foi representada satisfatoriamente por uma equação parabólica. A relação entre o volume do leito admensional e a umidade foram representadas por polinômios de terceiro grau. A queda de pressão através de um leito fixo de cubos de batata, beterraba e cenoura de 100mm de espessura foi

  17. Identificação e controle com antibióticos de bactérias endofíticas contaminantes em explantes de batata micropropagados Identification and antibiotic control of endophytic bacteria contaminants in micropropagated potato explants

    Directory of Open Access Journals (Sweden)

    Jonny Everson Scherwinski Pereira

    2003-07-01

    Full Text Available Este trabalho teve por objetivos isolar, caracterizar e identificar bactérias endofíticas contaminantes encontradas em tecidos de batata durante a micropropagação e selecionar antibióticos para o controle in vitro desses microrganismos por meio da determinação da concentração bactericida mínima inibitória. Brotações de batata apresentando contaminação bacteriana durante a etapa de multiplicação in vitro, foram superficialmente esterilizadas e os internódios transferidos para placas de Petri com ágar nutriente, onde permaneceram incubadas a 28°C por até cinco dias. Após purificação, as bactérias foram caracterizadas e identificadas por testes taxonômicos. Um total de oito estirpes bacterianas foram isoladas e identificadas como pertencentes às famílias Acetobacteriaceae (1 e Enterobacteriaceae (2 e aos gêneros Corynebacterium (3, Pseudomonas (1 e Xanthomonas (1. Os melhores resultados para a inibição do crescimento bacteriano foram obtidos com os antibióticos ampicilina, cloranfenicol, estreptomicina e tetraciclina em concentrações que variaram de 32 a 256 mg L-1.This work aimed to isolate, characterize and identify contaminant endophytic bacteria found in potato tissues during the micropropagation and to select antibiotics for in vitro control of these microorganisms by determining the inhibitory minimal bactericidal concentration. Potato shoots presenting bacterial contamination during the in vitro multiplication were superficially sterilized and the internodes transferred to Petri dishes with nutrient agar medium for up to five days at 28°C. After subcultures the grown bacteria were purified and identified through taxonomic tests. A total of eight bacterial endophytic strains were isolated and identified as belonging to Acetobacteriaceae (1 and Enterobacteriaceae (2 families and Corynebacterium (3, Pseudomonas (1 and Xanthomonas (1 genera. The best results for bacterial growth inhibition were obtained with

  18. Crescimento in vitro de plântulas de batata em diferentes doses de cádmio In vitro growth of potato plantlets in different doses of cadmium

    Directory of Open Access Journals (Sweden)

    Jamile Fabbrin Gonçalves

    2009-12-01

    Full Text Available Devido, principalmente, às ações antropogênicas, tais como industrialização e uso de insumos na agricultura, os níveis de cádmio têm aumentado em muitos solos agrícolas. O presente trabalho objetivou caracterizar o efeito desse metal no crescimento in vitro de duas cultivares de batata, 'Asterix' e 'Macaca'. Segmentos nodais de plantas previamente estabelecidas in vitro foram submetidos a doses de cádmio de 0 (controle, 100, 200, 300, 400 e 500µM em meio de cultivo MS. Avaliou-se o número de raízes aos 15 dias após a inoculação (DAI dos explantes, o comprimento das raízes e da parte aérea, o número de segmentos nodais e de folhas e a matéria fresca e seca das raízes e da parte aérea aos 22DAI. O cádmio afetou negativamente o crescimento das duas cultivares de batata, demonstrando que ambas são sensíveis a esse metal.Levels of cadmium have been increasing in many agricultural soils mainly due to the anthropogenic actions, such as industrialization and use of inputs in the agriculture. The present research aimed at characterizing the effect of this metal on in vitro growth of two potato cultivars, 'Asterix' and 'Macaca'. Nodal segments of plants previously in vitro established were submitted to cadmium concentration of 0 (control, 100, 200, 300, 400 and 500µM in MS. Number of roots was evaluated at 15 days after inoculation (DAI of the explants, and root and shoot length, number of nodal segments and leaves, and fresh and dry mass of roots and shoot were evaluated at 22DAI. Cadmium negatively affected the growth of the two potato cultivars, demonstrating that both are sensible to this metal.

  19. Períodos de interferência de uma comunidade de plantas daninhas na cultura da batata Weed interference periods in potato crop

    Directory of Open Access Journals (Sweden)

    N.V. Costa

    2008-03-01

    Full Text Available Objetivou-se neste trabalho avaliar diferentes períodos de controle e de convivência de uma comunidade de plantas daninhas na cultura da batata 'Atlantic'. O experimento foi realizado no município de Botucatu-SP, e o delineamento experimental utilizado foi de blocos ao acaso com quatro repetições. Os tratamentos constituíram-se de seis períodos de controle, nos quais a cultura foi mantida livre da comunidade de plantas daninhas e após cada período, as plantas daninhas foram deixadas crescer livremente; e de seis períodos de convivência, nos quais a cultura foi mantida na presença da comunidade de plantas daninhas e após cada período, as plantas daninhas foram eliminadas até a colheita. Os períodos foram de 7, 14, 21, 28, 35 e 42 dias após o plantio dos tubérculos, além de uma testemunha mantida sempre livre de plantas daninhas e outra mantida sempre na presença dessas plantas. Foram identificadas 9 famílias e 15 espécies de plantas daninhas, com destaque para Bidens pilosa, Galinsoga parviflora,Brachiaria plantaginea,Commelina benghalensis e Digitaria horizontalis. Os resultados de produção de tubérculos ajustaram-se ao modelo de regressão não-linear: y = 8,907+(17,722/[1+(x/16,865-8,412], (R² = 0,963* - equação para os períodos de controle e y = 5,728+(24,789/[1+(x/39,2922,247 ], (R² = 0,947* - equação para os períodos de convivência. Assim, considerando perda de 5% na produtividade como aceitável, foram determinados o período anterior à interferência (PAI, que foi de 20 dias; o período total de prevenção à interferência (PTPI, de 21 dias; e o período crítico de prevenção da interferência (PCPI, de apenas de um dia, dos 20 aos 21 dias após o plantio dos tubérculos.The aim of this research was to evaluate different weed control periods and weed coexistence periods in the potato crop 'Atlantic'. The experiment was carried out in Botucatu-SP, Brazil. The experimental design was a randomized

  20. Cultivares de batata para sistemas orgânicos de produção Potato cultivars for organic production systems

    Directory of Open Access Journals (Sweden)

    Fabrício Rossi

    2011-09-01

    Full Text Available Informações a respeito de cultivares adaptadas ao sistema de cultivo orgânico são escassas. O objetivo deste estudo foi avaliar, sob sistema de cultivo orgânico, genótipos nacionais e estrangeiros desenvolvidos para o cultivo convencional, quanto ao potencial produtivo, em condições de campo. O experimento foi conduzido em 2008, no Pólo APTA Leste Paulista, em Monte Alegre do Sul-SP. O delineamento experimental foi em blocos ao acaso, com 18 tratamentos e quatro repetições. Cada parcela foi constituída por 80 batatas-semente, dispostas em quatro linhas de 5 m de comprimento, espaçadas de 80 cm, com 25 cm entre tubérculos. Os genótipos avaliados foram Agata, Asterix, Caesar, Cupido, Éden, Melody, Novella e Vivaldi, de origem estrangeira; e Apuã, Aracy, Catucha, IAC Aracy Ruiva, Itararé, Monte Alegre 172, IAC 6090, APTA 16.5, APTA 15.20 e APTA 21.54, nacionais. Foram avaliadas as características de produtividade total e comercial de tubérculos, massa média total e comercial de tubérculos, teor de matéria seca e severidade da pinta-preta (Alternaria solani. Os clones APTA 16.5, APTA 21.54 e IAC 6090, e as cultivares Cupido, Apuã, Itararé e Monte Alegre 172 foram os mais produtivos. 'APTA 21.54' superou os demais em relação a produtividade comercial (18,07 t ha-1, sendo que 'APTA 16.5', 'Cupido', 'IAC 6090' e 'Itararé' formaram o segundo grupo. As maiores massas médias de tubérculos foram apresentadas pelas cultivares Itararé e Cupido. O clone IAC 6090 e as cultivares Aracy e Aracy Ruiva foram as que apresentaram maiores teores de matéria seca, com valor médio de 22,91%. 'APTA 16.5', 'Apuã', 'Aracy', 'Aracy Ruiva', 'Éden', 'Ibituaçú' e 'Monte Alegre 172' apresentaram alto nível de resistência à pinta-preta. As cultivares Itararé, Apuã e Cupido são adaptadas ao cultivo orgânico, e os clones avançados APTA 16.5, APTA 21.54 e IAC 6090 apresentam potencial de cultivo no sistema orgânico.Information regarding

  1. Resistência de clones de batata a Bemisia tabaci biótipo B Resistance of potato clones to Bemisia tabaci biotype B

    Directory of Open Access Journals (Sweden)

    Artur BO Rocha

    2012-03-01

    Full Text Available Avaliou-se a resistência de 30 genótipos de batata a B. tabaci (Genn. biótipo B (Hemiptera: Aleyrodidae em casa de vegetação, por meio de três experimentos. No primeiro com chance de escolha, foi em blocos ao acaso, 30 tratamentos e três repetições. Avaliou-se a atratividade para adultos, a preferência para oviposição e a densidade de tricomas simples e glandulares. Os sete genótipos com menor oviposição, juntamente com o padrão de resistência 'Achat', e o mais ovipositado foram selecionados para os experimentos seguintes, nos quais se avaliou a preferência para oviposição sem chance de escolha e para o acompanhamento do período de desenvolvimento ovo-adulto, ambos em blocos ao acaso, nove tratamentos e cinco repetições. Na avaliação de atratividade, após 72 horas, HPC 5B e BAP 82 tiveram o menor número de adultos, enquanto que NYL 235-4 e MAC 2 foram os mais atrativos. Neste mesmo experimento, os genótipos HPC 6R, BACH 4, Clone APTA 2135, HPC 9B, BAP 82, 'Baraka' e HPC 5B foram os menos ovipositados. O genótipo NYL 235-4 mostrou alta densidade de tricomas simples (TS e glandulares (TG, enquanto os genótipos CH 2, 'Santé' e 'Caesar' tiveram alta densidade de TS, e HPC 9B, 'Radosa', 'Cupido', 'Caesar', 'Saginaw Gold', BACH 3 e HPC 1B para TG revelaram menor pilosidade. Houve correlação significativa entre atratividade para adultos e preferência para oviposição. No experimento sem chance de escolha, os genótipos BACH 4, HPC 9B, 'Baraka' e 'Achat' foram menos ovipositados, caracterizando-se como portadores de resistência do tipo não-preferência para oviposição. Quanto ao período de desenvolvimento ovo-adulto, as médias não diferiram entre os genótipos, variando de 34,4 a 36,6 dias. Observou-se para os genótipos BAP 82, 'Baraka' e BACH 4 o menor número de adultos emergidos, sugerindo a presença de antibiose. Com base nos três experimentos, os clones 'Baraka' e BACH 4 destacaram-se como os mais

  2. Application of the Geriatric Anxiety Inventory-Chinese Version (GAI-CV) to older people in Beijing communities.

    Science.gov (United States)

    Yan, Yue; Xin, Tao; Wang, Dahua; Tang, Dan

    2014-03-01

    The Geriatric Anxiety Inventory (GAI) was developed to assess anxiety in older adults. The objectives of this work were as follows: (a) to analyze the psychometric properties of the Chinese version of the GAI (GAI-CV), and (b) to explore the extent of anxiety and related factors in the elderly Chinese residents of Beijing. Participants in this study included 1,047 people (59.4% female) more than 60 years old who were living in the community. They were randomly selected from 15 communities in Beijing. Basic information was collected. Anxiety was measured using the GAI-CV, the Self-Rating Anxiety Scale (SAS), and the Beck Anxiety Inventory (BAI). The GAI-CV exhibited good internal consistency (Cronbach's α = 0.94) and demonstrated good concurrent validity against the SAS (r = 0.52, p = 0.018) and the BAI (r = 0.560, p = 0.000). Item response theory (IRT) analyses showed that the items of the GAI-CV exhibited high difficulty (0.97-2) and discrimination parameters (1.91-5.33). The items exhibited information parameters greater than 1.25 with the exceptions of items 2, 12, and 18. The GAI-CV scores were significantly associated with gender, age, and chronic disease. However, no significant differences due to marriage or education were found. The GAI is a new scale that was specifically designed to measure anxiety in older people. The results of this study suggest that the GAI-CV had good psychometric properties, but some items need to be modified. IRT analyses indicated that the GAI-CV provided good measures of anxiety across the moderately high to very high levels. The GAI-CV may be a useful instrument for further research studies aimed at analyzing high-level anxiety among older adults in China.

  3. Defective secretion of mucilage is the cellular basis for agravitropism in primary roots of Zea mays cv. Ageotropic

    Science.gov (United States)

    Miller, I.; Moore, R.

    1990-01-01

    Root caps of primary, secondary, and seminal roots of Z. mays cv. Kys secrete large amounts of mucilage and are in close contact with the root all along the root apex. These roots are strongly graviresponsive. Secondary and seminal roots of Z. mays cv. Ageotropic are also strongly graviresponsive. Similarly, their caps secrete mucilage and closely appress the root all along the root apex. However, primary roots of Z. mays cv. Ageotropic are non-responsive to gravity. Their caps secrete negligible amounts of mucilage and contact the root only at the extreme apex of the root along the calyptrogen. These roots become graviresponsive when their tips are coated with mucilage or mucilage-like materials. Peripheral cells of root caps of roots of Z. mays cv. Kys contain many dictyosomes associated with vesicles that migrate to and fuse with the plasmalemma. Root-cap cells of secondary and seminal (i.e. graviresponsive) roots of Z. mays cv. Ageotropic are similar to those of primary roots of Z. mays cv. Kys. However, root-cap cells of primary (i.e. non-graviresponsive) roots of Z. mays cv. Ageotropic have distended dictyosomal cisternae filled with an electron-dense, granular material. Large vesicles full of this material populate the cells and apparently do not fuse with the plasmalemma. Taken together, these results suggest that non-graviresponsiveness of primary roots of Z. mays cv. Ageotropic results from the lack of apoplastic continuity between the root and the periphery of the root cap. This is a result of negligible secretion of mucilage by cells along the edge of the root cap which, in turn, appears to be due to the malfunctioning of dictyosomes in these cells.

  4. Wilting and biological additive effect on in situ degradability and chemical composition of Arachis pintoi cv Belomonte silage

    Directory of Open Access Journals (Sweden)

    Rosana Aparecida Possenti

    2010-01-01

    Full Text Available The purpose of this work was to evaluate the effect of wilting and biological additive amendment on chemical composition, fermentation and ruminal degradability of Arachis pintoi cv Belmonte silage. The following treatments were analysed: T1- Arachis pintoi cv Belmonte fresh forage; T2 - Arachis pintoi cv Belmonte fresh forage plus bacterial additive added to the forage prior to the ensilage; T3- Arachis pintoi cv Belmonte wilted by the sun for 4 hours; T4- Arachis pintoi cv Belmonte wilted by the sun plus bacterial additive. The degradability assay was carried out using three rumen-fistuled steers. The biological additive did not affect the chemical composition of silages, in situ degradability of nutrients DM, NDF and CP and of silage fermentation. However, the wilting treatments of the silages increased DM, CP, hemicelulose and decreased N-NH3 concentration, pH value, degradability of soluble fraction “a” from DM NDF and CP. The analysed characteristics suggest that Arachis pintoi cv Belmonte could satisfactorily preserve the forage quality if wilted by the sun during 4 hours, after harvested.

  5. PENERAPAN STANDAR AKUNTANSI KEUANGAN ENTITAS TANPA AKUNTABILITAS PUBLIK (SAK ETAP (Studi Kasus Pada CV. Citra Pandion Bernas di Kabupaten Solok

    Directory of Open Access Journals (Sweden)

    Floren Violetfin

    2013-04-01

    Full Text Available This research background overshadowed by presentation of CV Citra Pandion Bernas financial statement. Which is not required by ZAK of ETAP consist of balance, balance report, statement of changes in ekuitas, cash flow statement, and note of financial statement. While presented by financial statement is CV Citra Pandion Bernas only consisting of, profit report, capital statement and balance. Result of research indicate that CV.CITRA Pandion Bernas have applied its financial statement pursuant to ZAK of ETAP but not yet fully, still many element which not yet according to ZAK of ETAP, that is earnings which do not be dissociated pursuant to between operating income and earnings outside effort which is obtained. All purchasing of supply grouped in burden account at balance report, ought to supply when only which have used taken as burden that is equal to 70% from supply value. natural constraint by CV.CITRA Pandion Bernas in applying CV.CITRA Pandion Bernas among others, existence of mistake of conducted by calculation is CV.CITRA Pandion Bernas. There no division of clear duty between area because owner at the same time become organizer of[is effort. Owner also have other effort to be developed so that do not too focus at one area of is effort. Lack of human resource owning ability in compiling financial statement because do not in supporting with background education of accountancy.

  6. Describing Assay Precision-Reciprocal of Variance Is Correct, Not CV Percent: Its Use Should Significantly Improve Laboratory Performance.

    Science.gov (United States)

    Jelliffe, Roger W; Schumitzky, Alan; Bayard, David; Fu, Xiaowei; Neely, Michael

    2015-06-01

    Describing assay error as percent coefficient of variation (CV%) fails as measurements approach zero. Results are censored if below some arbitrarily chosen lower limit of quantification (LLOQ). CV% gives incorrect weighting to data obtained by therapeutic drug monitoring, with incorrect parameter values in the resulting pharmacokinetic models, and incorrect dosage regimens for patient care. CV% was compared with the reciprocal of the variance (1/var) of each assay measurement. This method has not been considered by the laboratory community. A simple description of assay standard deviation (SD) as a polynomial function of the assay measurement over its working range was developed, the reciprocal of the assay variance determined, and its results compared with CV%. CV% does not provide correct weighting of measured serum concentrations as required for optimal therapeutic drug monitoring. It does not permit optimally individualized models of the behavior of a drug in a patient, resulting in incorrect dosage regimens. The assay error polynomial described here, using 1/var, provides correct weighting of such data, all the way down to and including zero. There is no need to censor low results, and no need to set any arbitrary LLOQ. Reciprocal of variance is the correct measure of assay precision and should replace CV%. The information is easily stored as an assay error polynomial. The laboratory can serve the medical community better. There is no longer any need for LLOQ, a significant improvement. Regulatory agencies should implement this more informed policy.

  7. IMPLEMENTASI SIX SIGMA UNTUK PENINGKATAN KUALITAS SANDAL DI CV. SANCU CREATIVE INDONESIA

    Directory of Open Access Journals (Sweden)

    Sonny Koeswara

    2013-10-01

    Full Text Available Six Sigma adalah metodologi yang terstruktur untuk memperbaiki proses yang difokuskan pada usaha mengurangi variasi pada proses sekaligus mengurangi defect pada produk dengan menggunakan pendekatan statistik dan Problem solving tools secara intensif. Tujuan dari metode Six Sigma ini adalah untuk mendapatkan zero defect dengan menjalankan 5 tahapan yaitu : Define, Measure, Analyze, Improve ,dan Control (DMAIC. Tulisan ini bertujuan untuk menerapkan metode Six Sigma di Cv. Sancu Creative Indonesia yang merupakan badan usaha yang memproduksi sandal karakter. Masalah yang terjadi adalah adanya defect sol sandal mudah mengelupas yang berakibat pada kualitas sandal dan salah satu penghambat visi dan misi perusahaan. Penelitian ini dibagi dalam 5 tahap. Tahap pertama adalah Define, yang bertujuan untuk mengidentifikasi masalah yang terjadi yang berasal dari kebutuhan konsumen berdasarkan data DCA dan OQC defect di CV. SANCU. Tahap kedua adalah Measure yaitu mengukur kondisi level performance proses saat ini (Z-Level. Pada tahap ini dilakukan validasi sistem pengukuran  dengan  menghitung  Dpo,Dpmo,Yield  dan  Sigma  level.  Tahap  ketiga  adalah Analyze yaitu menentukan faktor-faktor penyebab terjadinya sol sandal mengelupas dan sekaligus menentukan vital faktor. Hasil dari pengujian menunjukkan bahwa vital faktor adalah waktu penempelan.Tahap keempat adalah improvement yaitu melakukan perbaikan dengan memberikan timer diarea lokasi penempelan. Control yaitu kegiatan melakukan pemantauan dari hasil perbaikan yang telah di implementasikan Kondisi   setelah   perbaikan   menghasilkan   perubahan   yang   signifikan   terhadap kapabilitas performance pada sandal, yaitu perubahan nilai sigma level setelah perbaikan 4.74s dari yang sebelum perbaikan adalah 4.26 s. Dari nilai tersebut dapat disimpulkan bahwa metode waktu penempelan dan kontrol pada performance sandal Cv. Sancu sudah membaik.

  8. Pulmonary nodule detection in CT images based on shape constraint CV model

    Energy Technology Data Exchange (ETDEWEB)

    Wang, Bing; Tian, Xuedong [College of Mathematics and Computer Science, Hebei University, Baoding 071002 (China); Wang, Qian [Hebei Geological Laboratory, Baoding 071000, China and Multi-disciplinary Research Center, Hebei University, Baoding 071002 (China); Yang, Ying [Hebei University Affiliated Hospital, Baoding 071002 (China); Xie, Hongzhi, E-mail: gulixu@sjtu.edu.cn, E-mail: xiehongzhi@medmail.com.cn; Zhang, Shuyang [Department of Cardiology, Peking Union Medical College Hospital, Peking 100005 (China); Gu, Lixu, E-mail: gulixu@sjtu.edu.cn, E-mail: xiehongzhi@medmail.com.cn [Multi-disciplinary Research Center, Hebei University, Baoding 071002, China and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030 (China)

    2015-03-15

    Purpose: Accurate detection of pulmonary nodules remains a technical challenge in computer-aided diagnosis systems because some nodules may adhere to the blood vessels or the lung wall, which have low contrast compared to the surrounding tissues. In this paper, the analysis of typical shape features of candidate nodules based on a shape constraint Chan–Vese (CV) model combined with calculation of the number of blood branches adhered to nodule candidates is proposed to reduce false positive (FP) nodules from candidate nodules. Methods: The proposed scheme consists of three major stages: (1) Segmentation of lung parenchyma from computed tomography images. (2) Extraction of candidate nodules. (3) Reduction of FP nodules. A gray level enhancement combined with a spherical shape enhancement filter is introduced to extract the candidate nodules and their sphere-like contour regions. FPs are removed by analysis of the typical shape features of nodule candidates based on the CV model using spherical constraint and by investigating the number of blood branches adhered to the candidate nodules. The constrained shapes of CV model are automatically achieved from the extracted candidate nodules. Results: The detection performance was evaluated on 127 nodules of 103 cases including three types of challenging nodules, which are juxta-pleural nodules, juxta-vascular nodules, and ground glass opacity nodules. The free-receiver operating characteristic (FROC) curve shows that the proposed method is able to detect 88% of all the nodules in the data set with 4 FPs per case. Conclusions: Evaluation shows that the authors’ method is feasible and effective for detection of three types of nodules in this study.

  9. Transformation of indica rice (Oryza sativa L. cv. RD6 mediated by Agrobacterium tumefaciens

    Directory of Open Access Journals (Sweden)

    Manit Kosittrakul

    2004-01-01

    Full Text Available High percentage of callus induction at 97% was obtained when seeds of rice (Oryza sativa L. cv. RD6 were cultured on modified N6 medium supplemented with 3% (w/v sucrose, 22.5 μM 2,4-D and 0.8% agar under light condition. The suitable regeneration medium was N6 medium supplemented with 3% (w/v sucrose, 2.5 μM IAA, 18 μM BA and 0.8% agar. A test had been performed to determine the effect of antibiotics on the regeneration of rice cv. RD6. It was found that kanamycin concentration up to 150 mg l-1 and hygromycin concentration at 10 mg l-1 were effective for selection of transformants. Cefotaxime and carbenicillin concentration up to 250 mg l-1 had the highest phytotoxicity to plant regeneration. Agrobacterium-mediated gene transfer protocols for rice cv. RD6 were performed using A. tumefaciens strain LBA4404, which harbored the plasmid pBI121 containing genes for β- glucuronidase (GUS and kanamycin resistance (nptII, and strain EHA105, which harbored plasmid pCAMBIA1301 containing genes for β-glucuronidase (GUS and hygromycin resistance (hptII. GUS activities were found in rice calli after co-cultivation. A number of morphologically normal fertile transgenic rice plants were obtained. Stable integration, expression and inheritance of transgenes were demonstrated by molecular and genetic analysis of transgenic plants in T0 and T1 generation. Mendelian segregation was observed in T1 progeny.

  10. Chemical Composition and in Vitro Antimicrobial, Cytotoxic, and Central Nervous System Activities of the Essential Oils of Citrus medica L. cv. ‘Liscia’ and C. medica cv. ‘Rugosa’ Cultivated in Southern Italy

    Directory of Open Access Journals (Sweden)

    Luigi Aliberti

    2016-09-01

    Full Text Available Citrus medica cv. ‘liscia’ and C. medica cv. ‘rugosa’ are two taxa of citron, belonging to the biodiversity of South Italy, in particular of Amalfi Coast, in the Campania region. The chemical composition of the essential oils (EOs from fruit peels of both C. medica cultivars was studied by gas chromatography (GC and gas chromatography-mass spectrometry (GC-MS analyses. In all, 100 compounds were identified, 82 for C. medica cv. ‘liscia’, accounting for 91.4% of the total oil, and 88 for C. medica cv. ‘rugosa’, accounting for 92.0% of the total oil. Monoterpene hydrocarbons are the main constituents in both oils of C. medica cv. ‘liscia’ (79.1% and C. medica cv. ‘rugosa’ (80.2%. In both oils, limonene (67.2%–62.8% and camphene (8.5%–10.9% are the main constituents. The antimicrobial activity of the EOs was assayed against some bacterial strains: Bacillus cereus (DSM 4313, Bacillus cereus (DSM 4384, Staphylococcus aureus (DSM 25693, Pseudomonas aeruginosa (ATCC 50071, and Escherichia coli (DSM 8579. Low concentrations of C. medica cv. ‘rugosa’ EO showed an inhibitory effect on P. aeruginosa and higher concentrations inhibited more B. cereus (4384 and E. coli than S. aureus. The cytotoxicity of the EO was evaluated against SH-SY5Y cell line. The influence of the EO on the expression of adenylate cyclase 1 (ADCY1 was also studied. The antimicrobial activity registered confirm their traditional uses as food preserving agents and led us to hypothesize the possible use of these oils as antimicrobials. The alterations in ADCY1 expression suggested a role for limonene in effects on the central nervous system.

  11. Chemical Composition and in Vitro Antimicrobial, Cytotoxic, and Central Nervous System Activities of the Essential Oils of Citrus medica L. cv. 'Liscia' and C. medica cv. 'Rugosa' Cultivated in Southern Italy.

    Science.gov (United States)

    Aliberti, Luigi; Caputo, Lucia; De Feo, Vincenzo; De Martino, Laura; Nazzaro, Filomena; Souza, Lucéia Fátima

    2016-09-18

    Citrus medica cv. 'liscia' and C. medica cv. 'rugosa' are two taxa of citron, belonging to the biodiversity of South Italy, in particular of Amalfi Coast, in the Campania region. The chemical composition of the essential oils (EOs) from fruit peels of both C. medica cultivars was studied by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) analyses. In all, 100 compounds were identified, 82 for C. medica cv. 'liscia', accounting for 91.4% of the total oil, and 88 for C. medica cv. 'rugosa', accounting for 92.0% of the total oil. Monoterpene hydrocarbons are the main constituents in both oils of C. medica cv. 'liscia' (79.1%) and C. medica cv. 'rugosa' (80.2%). In both oils, limonene (67.2%-62.8%) and camphene (8.5%-10.9%) are the main constituents. The antimicrobial activity of the EOs was assayed against some bacterial strains: Bacillus cereus (DSM 4313), Bacillus cereus (DSM 4384), Staphylococcus aureus (DSM 25693), Pseudomonas aeruginosa (ATCC 50071), and Escherichia coli (DSM 8579). Low concentrations of C. medica cv. 'rugosa' EO showed an inhibitory effect on P. aeruginosa and higher concentrations inhibited more B. cereus (4384) and E. coli than S. aureus. The cytotoxicity of the EO was evaluated against SH-SY5Y cell line. The influence of the EO on the expression of adenylate cyclase 1 (ADCY1) was also studied. The antimicrobial activity registered confirm their traditional uses as food preserving agents and led us to hypothesize the possible use of these oils as antimicrobials. The alterations in ADCY1 expression suggested a role for limonene in effects on the central nervous system.

  12. Proliferation Potential of 18-Month-Old Callus of Ananas comosus L. cv. Moris

    OpenAIRE

    Silva,A.E.; Kadir, M.A.; Aziz, M A; S. Kadzimin

    2006-01-01

    Differential effect of plant growth regulators and additives in proliferation of 18-month-old calli of Ananas comosus L. cv. Moris were assessed in vitro. The proliferation of callus relied on the growth regulators and additives. Of the different auxins supplemented in the Murashige and Skoog (MS) media, 32.22 μM α-naphthaleneacetic acid (NAA) gave the highest mean fresh weight of callus (46.817 g). Medium supplemented with 2,4-dichlorophenoxyacetic acid (2,4-D) was inferior to NAA, while b-n...

  13. Some features of one-year-old tart Cherry shoots of cv. Sehattenmorelle

    Directory of Open Access Journals (Sweden)

    Dariusz Świetlik

    2013-12-01

    Full Text Available The purpose of this study was to obtain data on the relationship between the length of 1-year-old shoots and their fruiting, and both their terminal and lateral growtn produced in the current year. The measurements were taken in 1977 and 1979 from the tart cherry trees of cv. Schattenmorelle grafted of Prunus mahaleb L. or Prunus avium L. grown in loose sandy soil. In 1977 there were more shoots of over 30 cm than in 1979. The longer the shoots, the more lateral shoots were there. Only the shortest shoots (1-10 cm bore more fruit per unit length as compared to the longer shoots.

  14. VARYING DEGREE OF GRAFTING COMPATIBILITY BETWEEN CV. CHARDONNAY, MERLOT AND DIFFERENT GRAPEVINE ROOTSTOCKS

    Directory of Open Access Journals (Sweden)

    Slavica TODIĆ

    2006-02-01

    Full Text Available Level of affi nity between grapevine rootstock and Vitis vinifera as scion, quality of reproductive materials and technological actions in grapevine rootstock production process determine success in grapevine rootstock production in large extent. Practical training showed that difference in level of compatibility between grapevine rootstock and grafted Vitis vinifera cultivars are existing. Direct effects of these differences are unequal yield of fi rst class grafted grapevine rootlings. In this paper, level of compatibility in nursery between clones of cv. Chardonnay BCL 75, VCR4 and cv. Merlot R18, MCL 519 and grapevine rootstocks Kober 5BB (Vitis berlandieri x V. riparia, SO4 (V. berlandieri x V. riparia and 41B (Chasselas x V.berlandieri were investigated. The trial was conducted in commercial grapevine nursery located in Velika Drenova, Serbia. As an index of compatibility, grade of high quality grapevine grafted rootlings, dry matter in mature shoots and root system development were used. Grafting was done by `tongue grafting` indoor technique. Stratifi cation was done in sand, on temperature of the stratifi cation material of 26-28oC, and humidity of around 90%. Grafted cuttings were waxed twice: before stratifi cation, and before planting in the nursery. Grafted rootlings were classed in two classes according to regulations of quality, (Yugoslav Offi cial Register, 26/79. Grafted rootlings that did not satisfi ed standard criteria were discarded. Both clones of cv. Chardonnay gave the highest percentage of I class grafted rootlings on grapevine rootstock 41B: clone BCL 75 – 60% and clone VCR4 – 61%. In the same combination, those grapevine grafted rootlings had the highest weight of the root system. Lower percentage of obtained I class grafted rootlings was established on rootstock Kober 5BB, while statistically signifi cantly lower yields were obtained on grapevine rootstock SO4: clone BCL75 – 43% and clone VCR4 – 48%. Dry

  15. TREATMENT OF 80 CASES OF INFANTILE DIARRHEA WITH ABDOMINAL ACUPUNCTURE AND MOXIBUSTION ON SHENQUE (CV 8)

    Institute of Scientific and Technical Information of China (English)

    PU Shang-xi; CHEN Pu-qing

    2006-01-01

    @@ Infantile diarrhea is the common and frequently-occurred disease in the pediatric department, fallen into the cate gory of "Xiaoer Xiexie" (infantile diarrhea) in Chinese medicine, which is commonly caused by the invasion of exogenous pathogenic factors, improper diet, the yang deficiency of the spleen and kidney and the weakness of the spleen and stomach. Eighty cases of infantile diarrhea had been treated with the abdominal acupuncture and moxibustion on Shenque (神阙CV 8) and the satisfactory results had been achieved. The report is as follows.

  16. RECOGNITION DESIGN OF LICENSE PLATE AND CAR TYPE USING TESSERACT OCR AND EmguCV

    OpenAIRE

    Antonius Herusutopo; Rizky Zuhrudin; Willy Wijaya; Yuka Musiko

    2012-01-01

    The goal of the research is to design and implement software that can recognize license plates and car types from images. The method used for the research is soft computing using library of EmguCV. There are four phases in creating the software, i.e., input image process, pre-processing, training processing and recognition. Firstly, user enters the car image. Then, the program reads and does pre-processing the image from bitmap form into vector. The next process is training process, which is ...

  17. Stability of lycopene in cv. Saladette tomatoes (Lycopersicon esculentum Mill.) stored under different conditions

    OpenAIRE

    R.M. Galicia; R. Verde; E. Ponce; R.O. González; C. Saucedo; Guerrero, I

    2008-01-01

    The objectives of this study were to determine the concentration of lycopene in cv. Saladette tomato subjected to blanching (thermal treatment), to extract the carotenoid and to evaluate the stability of the pigment in solutions added with and without antioxidants, in conditions of darkness at 4, 20 and 60 °C, and in fluorescent light at 20 °C during 30 days. The concentration of lycopene in non blanched tomatoes was 79.20 ug/g, while in blanched tomatoes it was 75.25 ug/g, none presenting an...

  18. Plant regeneration in vitro of South Pacific taro (Colocasia esculenta var. esculenta cv. Akalomamale, Aracea).

    Science.gov (United States)

    Yam, T W; Hsu, G I; Arditti, J

    1990-08-01

    Axillary bud expiants from South Pacific (Solomon Islands) taro, Colocasia esculenta var. esculenta cv. Akalomamale (Araceae) cultured on a modified Murashige-Skoog medium containing 1 mg NAA 1(-1) and TE formed callus and produced multiple plantlets. Explants died if NAA was present at levels lower than 0.1 mg 1(-1). BA was not required and may have been inhibitory. Plantlets developed faster and became larger following transfer to a hormone-free medium two weeks after the start of culture. Fully grown plants were established in a potting mix and are growing well in a greenhouse.

  19. Business Strategy of CV Jaya Sampurna in Facing Soft Drink Distributor Competition in Bekasi

    OpenAIRE

    Seri Nurmala; Hartiwi Hartiwi

    2015-01-01

    CV Jaya Sampurna is a soft drink distributor in Bekasi. Distributor company has a low profit margin, moreover the product sold is Fast Moving Consumers Goods with a very low profit margin (3.5%–5%). Therefore the company depends on a high volume of sales. Besides, there are many competitors in this industry, thus the business strategy is needed to improve the competitive advantage of the company. Given the conditions,this research was to identify the internal and the external factors, to iden...

  20. Business Strategy of CV Jaya Sampurna in Facing Soft Drink Distributor Competition in Bekas

    OpenAIRE

    Seri Nurmala; Hartiwi Prabowo

    2015-01-01

    CV Jaya Sampurna is a soft drink distributor in Bekasi. Distributor company has a low profit margin, moreover the product sold is Fast Moving Consumers Goods with a very low profit margin (3.5%5%). Therefore the company depends on a high volume of sales. Besides, there are many competitors in this industry, thus the business strategy is needed to improve the competitive advantage of the company. Given the conditions, this research was to identify the internal and the external factors, to iden...

  1. Generalized Integral Representations for Functions with Values in C(V3,3)

    Institute of Scientific and Technical Information of China (English)

    Klaus G(U)RLEBECK; Zhongxiang ZHANG

    2011-01-01

    By using the solution to the Helmholtz equation △u- λu = 0 (λ≥ 0),the explicit forms of the so-called kernel functions and the higher order kernel functions are given. Then by the generalized Stokes formula, the integral representation formulas related with the Helmholtz operator for functions with values in C(V3,3) are obtained. As application of the integral representations, the maximum modulus theorem for function u which satisfies Hu = 0 is given.

  2. Enraizamento e aclimatização de plantas micropropagadas de amoreira-preta cv. Brazos Rooting and acclimatization of micropropagated plants of blackberry cv. Brazos

    Directory of Open Access Journals (Sweden)

    Carolina Smanhotto Schuchovski Augusto

    2006-12-01

    Full Text Available O presente trabalho estudou as fases finais do processo de micropropagação, incluindo o enraizamento e a posterior aclimatização da amoreira-preta cv. Brazos. Os experimentos foram realizados no Laboratório de Micropropagação de Plantas da UFPR, Curitiba-PR, no período de março de 2000 a julho de 2001. No enraizamento in vitro com ou sem imersão em AIB, obteve-se mais de 95% de enraizamento nos dois tratamentos. No experimento de enraizamento ex vitro, com microestacas provenientes da multiplicação com diferentes citocininas, as taxas de enraizamento e sobrevivência foram de 100%. Na fase final, testou-se a influência da sacarose do meio de cultura de enraizamento in vitro na posterior aclimatização. Em todos os tratamentos, houve 100% de sobrevivência. Conclui-se que pode ser realizado um eficiente enraizamento in vitro sem AIB e sem a adição de sacarose ao meio de cultura, com posterior aclimatização em túnel plástico ou, ainda, realizar o enraizamento ex vitro e aclimatização em casa de vegetação com nebulização intermitente.The present work studied the final stages of blackberry cv. Brazos micropropagation, including rooting and acclimatization. The experiments were carried out in the Plant Micropropagation Laboratory at UFPR, Curitiba-PR, during March 2000 until July 2001. In the in vitro rooting with or without immersion in IBA, the percentage of rooting was higher than 95% in both treatments. In the experiment of ex vitro rooting, with micro-shoots proceeding from the multiplication with different cytokinins, the rooting and survival rates were of 100%. In the final stage it was tested the influence of sucrose of the in vitro rooting media on the acclimatization. All the treatments showed 100% of survival. It can be concluded that an efficient in vitro rooting can be realized without both IBA and sucrose in the culture media with acclimatization under plastic tunnel or ex vitro rooting and acclimatization

  3. BRS Eliza: cultivar de batata para mesa, com película lisa e resistência à pinta-preta e à requeima BRS Eliza: a fresh market potato cultivar, with smooth skin and early and late blight resistance

    Directory of Open Access Journals (Sweden)

    Arione S. Pereira

    2001-11-01

    Full Text Available BRS Eliza é uma cultivar de batata para consumo de mesa liberada em 2001, pela Embrapa Clima Temperado, Pelotas (RS. É mais adequada ao preparo de purê e salada (cremosa. O ciclo é médio. Os tubérculos têm formato oval, película lisa e amarela, pouca sensibilidade ao esverdeamento, polpa amarelo-clara e olhos superficiais. Não mostrou defeitos fisiológicos nos tubérculos. Tem boa resistência de campo à requeima (Phytophthora infestans e à pinta- preta (Alternaria solani e mediana a viroses. BRS Eliza é suscetível à canela-preta (Erwinia carotovara. Produz alta percentagem de tubérculos de tamanho comercial. Deve ser comercialisada imediatamente após a colheita, requerendo manejo cuidadoso da semente no armazenamentoBRS Eliza is a tablestock potato cultivar released in 2001, by Embrapa Clima Temperado, Pelotas, Brazil. It is adequate for purée and salad. Maturity is medium early. Tubers are oval shaped, yellow and smooth skin, low sensitivity to greening, yellow clear flesh and shallow eyes. BRS Eliza did not show physiological defects on the tubers. Has a good field resistance to late (Phytophthora infestans and early blight (Alternaria solani, and medium resistance to main viroses. BRS Eliza is susceptible to black leg (Erwinia carotovora. It produces a high percentage of commercial tubers. Must be marketed immediately after harvesting. It requires accurate seed management in storage.

  4. Application of Aspergillus batatae AS3.324 in Vinegar Brewing%甘薯曲霉AS3.324在食醋酿造中的应用研究

    Institute of Scientific and Technical Information of China (English)

    王红云; 王兰天; 王拥军; 郭富华; 刘德海

    2013-01-01

      采用甘薯曲霉AS3.324固态制麸曲、固态酒精发酵和固态醋酸发酵生产工艺,对在甘薯曲霉AS3.324食醋酿造中的应用进行了研究.结果表明:小试(曲盘曲)糖化酶活力达到897.1 u/g,生产用麸曲(发酵架曲)平均糖化力达到1035.55 u/g,多批次食醋发酵结果其主料出醋率平均达到7.9 kg/kg(HAC 3.5%).%The study was introduced on the application of Aspergillus batatae AS3.324 in vinegar brewing by means of solid-state koji making,solid-state alcohol and acetic acid fermentation. The result showed that the glucoamylase activity reached 897.1 u/g by koji tray in laboratory test and 1 035.55 u/g by fermentation tank in production test. The output of vinegar was 7.9 kg/kg for the main material(HAC 3.5%).

  5. Efeito do Solo do Materias Organicos E do Adubo Formula 4N:14P:8K Para Producao DA Batata (Solanum tuberosum L.) Semente Pre-Basica no Casa de Vegetacao

    Science.gov (United States)

    László, Márton

    2010-05-01

    hard effect (57%). Our results are shown that it was possible developing of the seed potato production under tropical greenhouse conditions by optimalised soil-organic matter-fertilizer system. This datas should be as indicators to sustainable field potato advisory systems. Keywords: potato (Solanum tuberosum L.), greenhouse, latossolo vermelho soil, farmyard manure, burnt rice straw, 4N:14P:8K fertilizer, sustainability, yield RESUMO A batata é atualmente uma das hortaliças de maior importância no Brasíl. Nos conduzirémos os três experimentos para aumentár-se do produção e produtividade da batata (Solanum tuberosum L.) semente pré- básica no casa de vegetação da Brazília-DF, no Empresa Brasileira de Pesquisa Agropecuaria- Centro Nacional de Pesquisas de Hortaliças no 1990. Os três experimentos (latossolo vermelho novo x esterco de curral x palha de arroz queimado, latossolo vermelho novo x adubo 4:14:8 NPK, latossolo vermelho novo x esterco de curral x palha de arroz queimado x adubo 4:14:8 NPK) no casa de vegetação foram conduzidos com total 29 combinações, no 5-5-3 repetições com total parcelas de 116. Os resultados foram submetidos a analise de variáncia, ANOVA e MANOVA. Nossos principal resultados estam apresentándo abaixo. 1. A mistura de 80% latossolo vermelho novo, 10% palha de arroz queimado e 10% de esterco de curral, apresentou os maiores valores para numero de tuberculos com 0-20 mm, peso total de tuberculos com 0-20 mm e peso total de tuberculos por vaso. 2. Há um efeito grande crescente das doses de 4N:14P:8K nos caracteres observados. 3. Analise-se do latossolo vermelho novo x esterco de curral x palha de arroz queimado x adubo 4:14:8 NPK experimento os resultados apresentárám-se que entre nas misturas também foi melhor a 80% latossolo vermelho novo, 10% palha de arroz queimado, 10% esterco de curral. Examinando-se 15 fatores, entre 11 casos afirmou-se a mistura como para melhor que a outra mistura. Nossos resultados

  6. Effects of feeding sweet potato (Ipomoea batatas) vines as a supplement on feed intake, growth performance, digestibility and carcass characteristics of Sidama goats fed a basal diet of natural grass hay.

    Science.gov (United States)

    Megersa, Tadesse; Urge, Mengistu; Nurfeta, Ajebu

    2013-02-01

    The objective of this study was to investigate the effects of substituting sweet potato [Ipomoea batatas (L) Lam] vines for concentrate on growth performance, digestibility, and carcass characteristics. Thirty yearling bucks (15.3 ± 1.64 kg) were assigned into six treatments in a randomized complete block design: natural grass hay alone (T1) or supplemented with 100 % sweet potato vines (SPV) (T2), 65 % SPV + 35 % concentrate (T3), 35 % SPV + 65 % concentrate (T4), and 100 % concentrate (T5) on dry matter (DM) basis. Supplemented goats (T2, T3, T4, and T5) consumed higher (p goats (349 g/day). The crude protein (CP) intake (32.0, 48.6, 54.7, and 69.2 g/day) increased with increasing levels of the concentrate in the diet for T2, T3, T4, and T5, respectively. The DM digestibility in T2, T3, T4, and T5, respectively, was higher (P goats lost weight (-19.5 g/day). Slaughter weight, empty body weight, hot carcass weight, dressing percentage, rib-eye muscle area, and total edible offals were higher (P goats compared with nonsupplemented ones. Therefore, it could be concluded that sweet potato vine can replace the conventional concentrate and could be fed with poor quality hay to prevent body weight loss of animal in the absence of other feed supplements.

  7. Variação da composição química em cultivares de batata durante seu desenvolvimento Variation in the chemical composition of potato tubers of three cultivars during the growing season

    Directory of Open Access Journals (Sweden)

    Dayse Soave Spoladore

    1985-01-01

    Full Text Available Estudou-se no presente trabalho a dinâmica de acúmulo de substâncias de reserva e glicoalcalóides totais, durante o desenvolvimento de tubérculos de três cultivares de batata - Aracy (IAC-2, Itaiquara (IAC-3551 e Teberê (IAC-4489 - criados e selecionados pela Seção de Raízes e Tubérculos do Instituto Agronômico, no ano agrícola 1982/83, em plantio "das águas" (novembro-janeiro. Os resultados obtidos são referentes às amostragens realizadas aos 64, 79 e 111 dias após o plantio (DAP, e mostraram que o cultivar Aracy acumulou maior quantidade de matéria seca, proteínas, cinzas, polissacarídeos totais e açúcares solúveis por tubérculo.In the rain season of 1982-1983 (November-January, it was studied the dynamics of accumulation of reserve substances and total glycoalkaloids in growing tubers of the Brazilian potato cultivars Aracy (IAC-2, Itaiquara (IAC-355 1 and Teberê (IAC-4489. Data are related to three sampling dates, 64, 79 and 111 days after planting (DAP. Tubers of Aracy (IAC-2 had the highest dry matter, protein, ash, total polisacharides and soluble e sugar contenta.

  8. EXTRACTION AND CHARACTERIZATION OF THE LECTIN OF THE IPOMOEA BATATAS F3282%甘薯品种F3282凝集素的提取及性质研究

    Institute of Scientific and Technical Information of China (English)

    余萍; 林少琴; 林玉满; 林晓红

    2000-01-01

    甘薯品种F3282的浸取液,经硫酸铵分级,甲壳素层析后,再经分子筛过滤,获得在PAGE上呈现单一蛋白质带的甘薯凝集素(Ipomoea Batatas Lectin,IBL).IBL对鸽、兔、人血等红细胞均有凝集作用,其中对鸽血的凝集活性最高,最低凝集浓度为0.05 μg/ml.IBL除凝集红细胞外,还可凝集小鼠脾细胞和肿瘤细胞;其对热相当稳定,90℃加热10min,仍有部分活性;IBL对酸处理较碱处理稳定,但可被阿拉伯糖或乳糖等解除凝集活性.IBL的中性糖含量为5.4%.

  9. 紫色甘薯营养成分和药用价值研究进展%Research Progress on Nutritive Component and Medicinal Value of Purple Sweet Potato [Ipomoea batatas (L.) Lam.

    Institute of Scientific and Technical Information of China (English)

    温桃勇; 刘小强

    2009-01-01

    紫色甘薯[Ipomoea batatas(L.)Lam]是一种富含天然食用色素的独特甘薯.从20世纪90年代初在日本农林水产省九州农业试验场选育出的"川山紫"开始,紫色甘薯由于富含多种营养成分,具有清除自由基抗氧化、预防和治疗心血管疾病等多种药用功能而在日本等发达国家得到广泛推广.就国内外对紫色甘薯各方面的研究,对其营养成分和药用价值进行论述,为在国内广泛推广种植紫色甘薯新品种提供重要依据.

  10. Crecimiento en clavel estándar cv. Nelson, en suelo y en sustratos Crescimento de cravo estandar cv. Nelson, em solo e em substratos Growth of standard carnation cv. Nelson, in soil and substrates

    Directory of Open Access Journals (Sweden)

    Adriana Del Pilar Baracaldo Argüello

    2010-01-01

    Full Text Available El cultivo de clavel en la sabana de Bogotá ha sido importante, ya que representa en la actualidad el segundo lugar de exportación en flores de corte. Recientemente, su producción en sistema de cultivo en sustrato ha aumentado debido fundamentalmente a limitantes de tipo sanitario, por lo cual es importante el estudio del crecimiento de las plantas establecidas en este sistema de cultivo. El objetivo de este estudio fue evaluar el crecimiento del clavel estándar cv. Nelson establecido en sustratos y en suelo, a segundo pico de cosecha, para lo cual, en el SENA - Centro Multisectorial de Mosquera, plantas de clavel se sometieron a los siguientes tratamientos: 100% de cascarilla de arroz quemada; 65% cascarilla de arroz quemada - 35% fibra de coco; 35% cascarilla de arroz quemada - 65% fibra de coco y suelo. En muestreos continuos se evaluaron las variables número de hojas, longitud del tallo, diámetro de tallo, número de nudos y diámetro y longitud del botón floral y se ajustaron curvas de crecimiento. Las plantas cultivadas en el tratamiento suelo presentaron mayor número de tallos. En este tratamiento los tallos florales también presentaron un mayor número de nudos y de hojas; sin embargo, fueron más cortos. Así mismo, presentaron menor diámetro de tallo y menor longitud y diámetro del botón floral; características determinantes de la calidad. Por tanto, la producción de tallos exportables de grado "select" fue significativamente inferior en el tratamiento suelo, en comparación con los demás tratamientos.O cultivo de cravo no planalto de Bogotá tem sido importante, visto que representa, na atualidade, o segundo lugar nas exportações colombianas de flores de corte. Recentemente, sua produção em sistemas de cultivo em substrato tem aumentado em consequência de fatores sanitários. O objetivo deste estudo foi avaliar o desenvolvimento do cravo tipo estandar cv. Nelson, estabelecido em substratos e em solo, na segunda

  11. 基于 OpenCV 和 Matlab 的摄像机标定系统设计与实现%Design and Implementation of Camera Calibration System Based on OpenCV and Matlab

    Institute of Scientific and Technical Information of China (English)

    江祥奎; 纪旭

    2015-01-01

    以摄像机标定技术为研究对象,对 OpenCV 函数库和 Matlab 标定工具箱中的函数模型进行分析,结合二者优势设计了一款摄像机标定系统。该系统充分发挥了 OpenCV 函数库的性能,并通过 Matlab 标定工具箱对 OpenCV 函数进行补充。最后通过 GUI 方法进行界面编程。实验结果表明,该系统具有较高的标定精度、界面友好、扩展性强,可以更好地满足机器视觉系统的工程需要。%Aiming at camera calibration technology ,the characteristics of OpenCV library and the function model of Matlab calibration toolbox are analyzed .The advantages are used to design a kind of camera calibration system .The system gives full play to the performance of OpenCV function library ,uses Matlab calibration kit as a supplement .Finally the sys-tem is implemented by GUI interface programming method .The system has high calibration precision ,friendly interface , strong expansibility .It can better satisfy the engineering need of machine vision system .

  12. ORGANIC FERTILIZER AS PHOSPHORUS SUPPLIER FOR Brachiaria brizantha CV. MARANDÚ FERTILIZANTE ORGÂNICO COMO FONTE DE FÓSFORO NO CULTIVO INICIAL DE Brachiaria brizantha CV. MARANDÚ

    Directory of Open Access Journals (Sweden)

    Diego Henriques Santos

    2010-05-01

    Full Text Available

    Phosphorus is considered an essential element for plants, but it is found in low amounts in Brazilian soils, mainly in areas destined to pastures, and the application of organic matter contributes to the improvement of physical, chemical and biological soil attributes. The research had the objective of evaluating the application effects of the Bokashi organic compound on soil macro and micronutrients contents and leaves, as well as on Brachiaria brizantha cv. Marandú dry mass yield, evaluating the potential of the organic fertilizer as phosphorus source, in comparison with conventional chemical fertilizers. Different organic compound doses supplied the soil with 17 kg P2O5 ha-1, 34 kg P2O5 ha-1, 68 kg P2O5 ha-1, 136 kg P2O5 ha-1, and 204 kg P2O5 ha-1, comparing it with the conventional chemical fertilizer and the control. The results revealed that the organic fertilizer Bokashi can adequately replace the conventional chemical fertilizer of Brachiaria brizantha cv. Marandú, supplying the soil and plant with appropriate nutrients levels and maintaining the dry mass yield.

    KEY-WORDS: Organic matter; organic fertilizers; plants mineral nutrition; Bokashi

  13. Quality characteristics of soybean pasted (Doenjang) manufactured with 2 soybean mutant lines derived from cv. baekwon

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Kyung Jun; Kang, Si Yong; Choi, Hong Il; Kim, Jin Baek [Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup (Korea, Republic of)

    2016-11-15

    In order to identification of the possibility of manufacturing soybean paste (doenjang) with soybean mutant lines induced from gamma-ray mutagenesis, this study was performed to investigate the quality characteristics of doenjang using two soybean mutant lines, Baekwon-1 (BW-1) and Baekwon-2 (BW-2) and their original cultivar (cv. Baekwon, BW) for 8 weeks. The BW and two mutant lines (BW-1 and BW-2) were showed higher content of amino type nitrogen than control (cv. Taegwang). The pH decreased and the titratable acidity increased all the samples during aging period. The lightness, redness and yellowness of doenjang were the lowest in BW. Total free sugar content of doenjang was the highest in control (10.43%) after 4 weeks and composed mainly fructose and glucose. The order of the free amino acid content was Glutamic acid>Leucine>Lysine>Phenylalanine>Aspartic acid in control, Glutamic acid>Leucine >Arginine>Lysine>Phenylalanine in BW, Glutamic acid>Lysine>Phenylalanine>Aspartic acid>Valine in BW-1 and Glutamic acid>Arginine>Lysine>Phenylalanine>Aspartic acid in BW-2, respectively. Our results showed that it is possible to increase the quality of doenjang using soybean mutant lines in manufacturing soybean paste.

  14. Heterogeneous compute in computer vision: OpenCL in OpenCV

    Science.gov (United States)

    Gasparakis, Harris

    2014-02-01

    We explore the relevance of Heterogeneous System Architecture (HSA) in Computer Vision, both as a long term vision, and as a near term emerging reality via the recently ratified OpenCL 2.0 Khronos standard. After a brief review of OpenCL 1.2 and 2.0, including HSA features such as Shared Virtual Memory (SVM) and platform atomics, we identify what genres of Computer Vision workloads stand to benefit by leveraging those features, and we suggest a new mental framework that replaces GPU compute with hybrid HSA APU compute. As a case in point, we discuss, in some detail, popular object recognition algorithms (part-based models), emphasizing the interplay and concurrent collaboration between the GPU and CPU. We conclude by describing how OpenCL has been incorporated in OpenCV, a popular open source computer vision library, emphasizing recent work on the Transparent API, to appear in OpenCV 3.0, which unifies the native CPU and OpenCL execution paths under a single API, allowing the same code to execute either on CPU or on a OpenCL enabled device, without even recompiling.

  15. Biosynthesized Silver Nanoparticles Used in Preservative Solutions for Chrysanthemum cv. Puma

    Directory of Open Access Journals (Sweden)

    Luis M. Carrillo-López

    2016-01-01

    Full Text Available The use of pulse solutions containing antimicrobials has been reported, but more research is necessary. To increase vase life and to study their effect on opening inflorescences, silver nanoparticles were used in vase solutions for cv. Puma Chrysanthemum stems. The nanoparticles were synthesized biologically using Chenopodium ambrosioides L. applied at concentrations of 0.01, 0.05, 0.1, 0.5, 1, and 5 mM and compared with a control. Treatments were replicated five times. The stems were cut to 50 cm and observed until the end of their vase life. Low concentrations of silver nanoparticles promoted inflorescence opening and leaf yellowing, while the control leaves remained green, but there was a lower degree of inflorescence opening. High concentrations of silver nanoparticles (0.5, 1, and 5 mM caused senescence due to low water uptake through the stems. Statistical differences in inflorescence opening and diameter, bacterial growth (CFU mL−1 in vase solutions, fresh weight, water uptake, and vase life were found among treatments. Longer vase life and less weight loss were observed in the stems exposed to low concentrations of silver nanoparticles. Low concentrations of silver nanoparticles promoted inflorescence opening and increased vase life of Chrysanthemum cv. Puma.

  16. Plasmalemmal vesicle associated protein (PV1) modulates SV40 virus infectivity in CV-1 cells.

    Science.gov (United States)

    Tse, Dan; Armstrong, David A; Oppenheim, Ariella; Kuksin, Dmitry; Norkin, Leonard; Stan, Radu V

    2011-08-26

    Plasmalemmal vesicle associated protein (Plvap/PV1) is a structural protein required for the formation of the stomatal diaphragms of caveolae. Caveolae are plasma membrane invaginations that were implicated in SV40 virus entry in primate cells. Here we show that de novo Plvap/PV1 expression in CV-1 green monkey epithelial cells significantly reduces the ability of SV40 virus to establish productive infection, when cells are incubated with low concentrations of the virus. However, in presence of high viral titers PV1 has no effect on SV40 virus infectivity. Mechanistically, PV1 expression does not reduce the cell surface expression of known SV40 receptors such as GM1 ganglioside and MHC class I proteins. Furthermore, PV1 does not reduce the binding of virus-like particles made by SV40 VP1 protein to the CV-1 cell surface and does not impact their internalization when cells are incubated with either high or low VLP concentrations. These results suggest that PV1 protein is able to block SV40 infectivity at low but not at high viral concentration either by interfering with the infective internalization pathway at the cell surface or at a post internalization step. Copyright © 2011 Elsevier Inc. All rights reserved.

  17. Slurry sampling in serum blood for mercury determination by CV-AFS

    Energy Technology Data Exchange (ETDEWEB)

    Aranda, Pedro R. [Departmento de Quimica Analitica, Facultad de Quimica, Bioquimica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, P.O. Box 375, 5700 San Luis (Argentina); Instituto de Quimica San Luis (INQUISAL-CONICET), Chacabuco y Pedernera, P.O. Box 375, 5700 San Luis (Argentina)], E-mail: paranda@unsl.edu.ar; Gil, Raul A. [Departmento de Quimica Analitica, Facultad de Quimica, Bioquimica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, P.O. Box 375, 5700 San Luis (Argentina); Instituto de Quimica San Luis (INQUISAL-CONICET), Chacabuco y Pedernera, P.O. Box 375, 5700 San Luis (Argentina)], E-mail: ragil@unsl.edu.ar; Moyano, Susana [Departmento de Quimica Analitica, Facultad de Quimica, Bioquimica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, P.O. Box 375, 5700 San Luis (Argentina)], E-mail: smoyano@unsl.edu.ar; De Vito, Irma [Departmento de Quimica Analitica, Facultad de Quimica, Bioquimica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, P.O. Box 375, 5700 San Luis (Argentina)], E-mail: devito@unsl.edu.ar; Martinez, Luis D. [Departmento de Quimica Analitica, Facultad de Quimica, Bioquimica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, P.O. Box 375, 5700 San Luis (Argentina); Instituto de Quimica San Luis (INQUISAL-CONICET), Chacabuco y Pedernera, P.O. Box 375, 5700 San Luis (Argentina)], E-mail: ldm@unsl.edu.ar

    2009-01-30

    The heavy metal mercury (Hg) is a neurotoxin known to have a serious health impact even at relatively low concentrations. A slurry method was developed for the sensitive and precise determination of mercury in human serum blood samples by cold vapor generation coupled to atomic fluorescence spectrometry (CV-AFS). All variables related to the slurry formation were studied. The optimal hydrochloric concentration and tin(II) chloride concentration for CV generation were evaluated. Calibration within the range 0.1-10 {mu}g L{sup -1} Hg was performed with the standard addition method, and compared with an external calibration. Additionally, the reliability of the results obtained was evaluated by analyzing mercury in the same samples, but submitted to microwave-assisted digestion method. The limit of detection was calculated as 25 ng L{sup -1} and the relative standard deviation was 3.9% at levels around of 0.4 {mu}g L{sup -1} Hg.

  18. Health and nutritional status of Wistar rats following subchronic exposure to CV127 soybeans.

    Science.gov (United States)

    Chukwudebe, Amechi; Privalle, Laura; Reed, Andrew; Wandelt, Christine; Contri, Daniela; Dammann, Martina; Groeters, Sibylle; Kaspers, Uwe; Strauss, Volker; van Ravenzwaay, Bennard

    2012-03-01

    This subchronic duration feeding study evaluated the nutritional and health status of rats fed diets containing CV127 at incorporation levels of 11% and 33%. For control comparisons, rats were also exposed to similar incorporation levels of the near isogenic conventional soybean variety (Conquista) and two other conventional soybean varieties (Monsoy, Coodetec). In spite of phenotypic differences among these four soybean varieties, there were no quantitative differences in their respective proximate and other compositional properties, including proteins, amino acids, antinutrients and nutritional cofactors. All diets were prepared by blending the respective processed soybean meal with ground Kliba maintenance meal at high (33%) and low (11%) incorporation levels, and the blended diets were fed to Wistar rats for about 91 days. Although there were some isolated parameters indicating statistically significant changes, these lacked consistency and a plausible mechanism and were thus assessed to be incidental. The totality of results demonstrate that CV127 soybeans are similar with respect to their nutritional value and systemic effects as its near isogenic conventional counterpart, as well as other conventional soybean varieties. Hence, introduction of AHAS gene into soybeans does not substantially alter its compositional properties, nor adversely affect its nutritional or safety status to mammals.

  19. PENINGKATAN EFEKTIFITAS DAN EFISIENSI BIAYA KUALITAS MELALUI PENEDEKATAN SIMULASI (Studi Kasus di CV. SINAR BAJA ELEKTRIC

    Directory of Open Access Journals (Sweden)

    I Gede Agus Widyadana

    2003-01-01

    Full Text Available The paper discusses about how to increase product quality and still concern with quality cost. We add factor of time to count quality cost and the effect to quality product. Time has important function in this research, so simulation is used to analyze quality control system. The simulation on CV. Sinar Baja Elektrik shows that the propose method can decrease product reject about 8% and quality cost until 16,89% from total sales. Abstract in Bahasa Indonesia : Makalah ini membahas mengenai upaya untuk meningkatkan kualitas produk dengan memperhatikan biaya kualitas. Penelitian ini memasukan tambahan faktor waktu dalam memperhitungkan biaya kualitas serta dampaknya pada kualitas produk. Oleh karena faktor waktu memegang peranan yang penting, maka analisa sistem pengendalian kualitas pada penelitian ini menggunakan metode simulasi. Hasil simulasi di CV. Sinar Baja Elektrik menunjukan metode yang diusulkan dapat menurunkan hasil rata-rata tingkat kelolosan produk cacat untuk tiap tipe speaker hingga berkisar 8%, dan total biaya kualitas secara keseluruhan dapat diturunkan hingga sebesar 16.89% dari total penjualan. Kata kunci: biaya kualitas, efisiensi, efektivitas, simulasi.

  20. Preliminary results of the pCT scanner testing at CV-28

    Energy Technology Data Exchange (ETDEWEB)

    Setti, Joao A.P.; Schelin, Hugo R.; Paschuk, Sergei A.; Milhoretto, Edney; Rocha, Rodrigo L. [Federal University of Technology (UTFPR), Curitiba, PR (Brazil)], E-mail: setti@utfpr.edu.br, E-mail: schelin@cpgei.cefetpr.br, E-mail: sergei@utfpr.edu.brj, E-mail: edneymilhoretto@yahoo.com, E-mail: rodrigo.luis.rocha@gmail.com; Ribeiro Junior, Sebastiao [Instituto de Tecnologia para o Desenvolvimento (LACTEC), Curitiba, PR (Brazil)], E-mail: ribeiro@lactec.org.br; Evseev, Ivan G.; Assis, Joaquim T. de; Yevseyeva, Olga [Universidade do Estado do Rio de Janeiro (UERJ), Nova Friburgo, RJ (Brazil). Inst. Politecnico], E-mail: evseev@iprj.uerj.br, E-mail: joaquim@iprj.uerj.br, E-mail: yevseyeva@iprj.uerj.br; Lopes, Ricardo T. [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia (COPPE). Lab. de Instrumentacao Nuclear], E-mail: ricardo@lin.ufrj.br; Vinagre Filho, Ubirajara M. [Instituto de Engenharia Nuclear IEN/CNEN-RJ, Rio de Janeiro, RJ (Brazil)], E-mail: bira@ien.gov.br

    2007-07-01

    In the present work the first results obtained with the low energy proton beam of CV-28 at IEN/CNEN and the prototype of a computerized tomography device developed in UFTPR are presented. The system installed in the scatterings chamber of the cyclotron line 3 includes the proton scatter, turntable with translation (1st generation CT scheme), the set of collimators for the secondary proton beam formation and the Si(Li) ORTEC detector. The main parameters of the tomography turntable and the collimators were chosen based on computer simulations with SRIM2006 and GEANT4. A cylindrical glass tube was used as the irradiated sample. On this stage, only the translation of the turntable perpendicular to the proton beam direction was fulfilled. The measured proton energy spectra have, in general, a predicted behavior. However, the experiment revealed some problems with the secondary proton beam formation that should be solved prior to obtain a first pCT image at CV-28. (author)

  1. Business Strategy of CV Jaya Sampurna in Facing Soft Drink Distributor Competition in Bekasi

    Directory of Open Access Journals (Sweden)

    Seri Nurmala

    2015-11-01

    Full Text Available CV Jaya Sampurna is a soft drink distributor in Bekasi. Distributor company has a low profit margin, moreover the product sold is Fast Moving Consumers Goods with a very low profit margin (3.5%–5%. Therefore the company depends on a high volume of sales. Besides, there are many competitors in this industry, thus the business strategy is needed to improve the competitive advantage of the company. Given the conditions,this research was to identify the internal and the external factors, to identify the formulation of business strategy alternative, and to identify the recommendation of functional strategy for CV Jaya Sampurna. Research used descriptive method; and the type of research used was case study. Data were gathered from questionnaires and interview to three member of managers: Director, Operational Manager, and Finance Manager. Data wereanalyzed by using EFE, IFE, SWOT, IE, Grand Strategy Matrix and QSPM. The result of this research implies that the alternative strategy based on QSPM’s result was market penetration

  2. Production and quality of mini watermelon cv. Smile irrigated with saline water

    Directory of Open Access Journals (Sweden)

    Alan B. O. de Sousa

    Full Text Available ABSTRACT The purpose of this study was to evaluate the salt tolerance of mini watermelon (cv. Smile. The experiment was carried out in the greenhouse of the Department of Biosystems Engineering of ESALQ/USP. The experimental design was randomized blocks. The plants were irrigated with five levels of salinity (S1 = 1.0; S2 = 2.0; S3 = 3.0; S4 = 4.0 and S5 = 5.0 dS m-1. At 85 days after the beginning of the experiment, the plants and the physical and chemical variables of the fruit were evaluated. Salinity negatively affected the variables: length of the main stem, stem diameter, number of leaves, number of branches, leaf area, fresh and dry matter. Regarding the physical and chemical characteristics of fruits, salinity reduced the mass, diameter and the pH of the fruit, but increased its vitamin C content. In general, the results suggest that the mini watermelon (cv. Smile is moderately sensitive to salinity.

  3. Multi-camera calibration based on openCV and multi-view registration

    Science.gov (United States)

    Deng, Xiao-ming; Wan, Xiong; Zhang, Zhi-min; Leng, Bi-yan; Lou, Ning-ning; He, Shuai

    2010-10-01

    For multi-camera calibration systems, a method based on OpenCV and multi-view registration combining calibration algorithm is proposed. First of all, using a Zhang's calibration plate (8X8 chessboard diagram) and a number of cameras (with three industrial-grade CCD) to be 9 group images shooting from different angles, using OpenCV to calibrate the parameters fast in the camera. Secondly, based on the corresponding relationship between each camera view, the computation of the rotation matrix and translation matrix is formulated as a constrained optimization problem. According to the Kuhn-Tucker theorem and the properties on the derivative of the matrix-valued function, the formulae of rotation matrix and translation matrix are deduced by using singular value decomposition algorithm. Afterwards an iterative method is utilized to get the entire coordinate transformation of pair-wise views, thus the precise multi-view registration can be conveniently achieved and then can get the relative positions in them(the camera outside the parameters).Experimental results show that the method is practical in multi-camera calibration .

  4. Temperature is the key to altitudinal variation of phenolics in Arnica montana L. cv. ARBO.

    Science.gov (United States)

    Albert, Andreas; Sareedenchai, Vipaporn; Heller, Werner; Seidlitz, Harald K; Zidorn, Christian

    2009-05-01

    Plants in alpine habitats are exposed to many environmental stresses, in particular temperature and radiation extremes. Recent field experiments on Arnica montana L. cv. ARBO indicated pronounced altitudinal variation in plant phenolics. Ortho-diphenolics increased with altitude compared to other phenolic compounds, resulting in an increase in antioxidative capacity of the tissues involved. Factors causing these variations were investigated by climate chamber (CC) experiments focusing on temperature and ultraviolet (UV)-B radiation. Plants of A. montana L. cv. ARBO were grown in CCs under realistic climatic and radiation regimes. Key factors temperature and UV-B radiation were altered between different groups of plants. Subsequently, flowering heads were analyzed by HPLC for their contents of flavonoids and caffeic acid derivatives. Surprisingly, increased UV-B radiation did not trigger any change in phenolic metabolites in Arnica. In contrast, a pronounced increase in the ratio of B-ring ortho-diphenolic (quercetin) compared to B-ring monophenolic (kaempferol) flavonols resulted from a decrease in temperature by 5 degrees C in the applied climate regime. In conclusion, enhanced UV-B radiation is probably not the key factor triggering shifts in the phenolic composition in Arnica grown at higher altitudes but rather temperature, which decreases with altitude.

  5. Evaluation of Doubled Haploid Derivatives of the Flue-cured Nicotianatabacum cv. Wislica

    Directory of Open Access Journals (Sweden)

    Berbec A

    2014-12-01

    Full Text Available A total of 51 doubled haploid (DH derivatives of the flue-cured true-breeding tobacco variety Wislica were obtained via anther culture and colchicine-induced chromosome doubling. Of that number eight DH lines showed morphological aberrations and/or reduced vigour that made them unfit to be grown in the field. The remaining 43 DH lines were grown in 2001 under regular flue-cured tobacco management and evaluated for principal growth indicators, yield, curability and gross money returns from unit area. In 2002, the evaluation was scaled down to include 13 best performing DH lines of 2001. The DH lines showed a considerable variation for basic growth parameters. Usually, the DH lines had more leaves but were shorter than the parental genotype mostly due to shorter internodes. The majority of DH lines showed delayed flowering compared to the parental cultivar. Yields of cured leaves varied extensively, some of the DH lines yielding above and some below cv. Wislica. Curability measured as percentage of light (1st to 3rd grades was generally lower in DH lines compared to that in cv. Wislica. However, because of the high leaf yield some of the DH lines were not inferior to the parental cultivar with respect to money returns from unit area.

  6. Determination of polyphenols and antioxidant activity of Vitis labrusca cv. baile berries.

    Science.gov (United States)

    Nile, Shivraj Hariram; Park, Se Won

    2015-10-01

    Grape juice and grape skin extracts are important commercial source of polyphenolic compounds which exert different functional properties such as color potential, antimicrobial, antioxidant activity, and health benefits. In this paper we describe a sensitive and specific assay for determination of bioactive polyphenolic compounds in Campbell Early (Vitis labrusca cv. baile). Five polyphenolic components were separated on an Agilent Zorbax Extend C18 Column (250 mm x 4.6 mm x 5 μm) and detected by a diode array detector. The mobile phase was composed of (a) aqueous phosphoric acid (0.2%, v/v); and (b) acetonitrile using a gradient elution. Analytes were performed at 25 degrees C with a flow rate of 0.8 ml/min and UV detection at 280, 360, and 520 nm. All calibration curves showed good linear regression (r2 ≥ 0.9999) within tested ranges. Overall intra- and inter-day variations were less than 1.90%, and the average recoveries were 95.5-105% for analytes. The antioxidant activity determined by DPPH radical assay, ranged from 86-105 for extracts, and 165-252 for studied standards (μM trolox/100 g dry wt.). The proposed method would be sensitive enough and reliable for quality control in functional food and modernization of Campbell Early (Vitis labrusca cv. baile) as potent antioxidant agents.

  7. Differential phenolic production in leaves of Vitis vinifera cv. Alvarinho affected with esca disease.

    Science.gov (United States)

    Lima, Marta R M; Felgueiras, Mafalda L; Cunha, Ana; Chicau, Gisela; Ferreres, Federico; Dias, Alberto C P

    2017-03-01

    Esca is a destructive disease of complex etiology affecting grapevines worldwide. A major constraint to the study and control of esca is that the disease is not diagnosed until external leaf and/or fruit symptoms are visible; however external symptoms usually appear several years after infection onset. We studied the phenolic content of V. vinifera cv. Alvarinho leaves using high performance liquid chromatography-diode array detection-mass spectrometry (HPLC-DAD-MS)/LC-MS. Leaves from affected cordons with and without visible symptoms (diseased and apparently healthy leaves, respectively) and leaves from asymptomatic cordons (healthy leaves) were analyzed. Application of principal components analysis (PCA) to HPLC data showed a clear separation between diseased, apparently healthy, and healthy leaves, with the apparently healthy leaves clustered in a medial position. Several compounds were highly correlated with diseased leaves indicating a differential phenolic production due to esca disease in V. vinifera cv. Alvarinho leaves. Total phenolic production was shown to significantly increase in diseased leaves, compared to healthy leaves, with apparently healthy leaves containing a medial amount. Trans-caffeoyltartaric acid, trans-coumaroyl-tartaric acid, quercetin-3-O-glucoside, quercetin-3-O-galactoside, kaempferol-3-glucoside and myricetin were identified among the compounds associated with disease and their content shown to change similarly to total phenolic production. This study shows that it is possible to discriminate between diseased, healthy and apparently healthy leaves by applying PCA to HPLC data. Copyright © 2016 Elsevier Masson SAS. All rights reserved.

  8. 26Al-26Mg systematics in chondrules from Kaba and Yamato 980145 CV3 carbonaceous chondrites

    Science.gov (United States)

    Nagashima, Kazuhide; Krot, Alexander N.; Komatsu, Mutsumi

    2017-03-01

    We report the mineralogy, petrography, and in situ measured 26Al-26Mg systematics in chondrules from the least metamorphosed CV3 (Vigarano-type) chondrites, Kaba and Yamato (Y) 980145. Two Y 980145 chondrules measured show no resolvable excesses in 26Mg (26Mg∗), a decay product of a short-lived (t1/2 ∼0.7 Ma) radionuclide 26Al. Plagioclase in one of the chondrules is replaced by nepheline, indicative of thermal metamorphism. The lack of 26Mg∗ in the Y 980145 chondrules is most likely due to disturbance of their 26Al-26Mg systematics during the metamorphism. Although Kaba experienced extensive metasomatic alteration (core in this body suggested from the paleomagnetic records of Allende [Carporzen et al. (2011) Magnetic evidence for a partially differentiated carbonaceous chondrite parent body. Proc. Natl. Acad. Sci. USA108, 6386-6389] and Kaba [Gattacceca et al. (2013) More evidence for a partially differentiated CV parent body from the meteorite Kaba. Lunar Planet. Sci.44, abstract#1721].

  9. Le bureau d'études TS/CV/BE pour les besoins du projet LHC

    CERN Document Server

    Martel, C

    2004-01-01

    Le bureau d'études TS/CV/BE propose un appui technique personnalisé aux différentes sections du groupe TS/CV, responsables des projets liés aussi bien à la machine LHC, ses zones expérimentales, que d'autres projets associés. L'équipe, constituée historiquement et exclusivement de personnel d'entreprise extérieure, dispose d'un effectif variable, adapté à des besoins planifiés. Le choix d'utiliser les mêmes logiciels de CAO que la communauté du CERN, a limité la proportion de spécialistes au sein de l'équipe. Une méthodologie particulière a donc été mise en place pour satisfaire les demandes, tout en faisant face à l'étendue et à la complexité des installations de ventilation et de refroidissement. Des compétences externes spécialisées sont également sollicitées, au cas par cas, pour optimiser les coûts de fonctionnement.

  10. QUALIDADE DE GOIABAS CV. 'PALUMA' SUBMETIDAS A INJÚRIAS MECÂNICAS E FRIGOARMAZENAMENTO

    Directory of Open Access Journals (Sweden)

    HELTON DE SOUZA SILVA

    2013-01-01

    Full Text Available This work aimed to evaluate the effect of mechanical injuries caused by impact, abrasion and cut in guavas cv. 'Paluma' under fruit quality during cold storage at 10°C, and at environment temperature. Was to adopt the completely randomized design in a split-plot in time considering as plots, the mechanical injuries and subplots, the storage periods (0, 5, 8, 11, 14 and 17 days with four replicates of two fruits per experimental unit. The mechanical injuries were induced considering the following criteria: T1, witness, without fruit visible damage; T2, fruits impacts, two impacts per fruit at a height of 85 cm; T3, fruits subjected two cuts, on opposite sides, depth of 2 mm and length 30 mm; T4, fruits subjected to abrasion, area of 10 cm2. Was evaluated the exterior color, the external appearance, the internal appearance, the severity of disease. Injury due to impact, abrasion and cut no influence on in exterior color, external appearance, internal appearance and severity of diseases of guava cv. 'Paluma' during storage for 11 days at 10oC. But, the quality was impaired by mechanical injuries six days after exposure to 30°C.

  11. Water-Deficit Tolerance in Sweet Potato [Ipomoea batatas (L. Lam.] by Foliar Application of Paclobutrazol: Role of Soluble Sugar and Free Proline

    Directory of Open Access Journals (Sweden)

    Suravoot Yooyongwech

    2017-08-01

    Full Text Available The objective of this study was to elevate water deficit tolerance by improving soluble sugar and free proline accumulation, photosynthetic pigment stabilization, photosynthetic abilities, growth performance and storage root yield in sweet potato cv. ‘Tainung 57’ using a foliar application of paclobutrazol (PBZ. The experiment followed a Completely Randomized Block Design with four concentrations of PBZ: 0 (control, 17, 34, and 51 μM before exposure to 47.5% (well irrigation, 32.3% (mild water deficit or 17.5% (severe water deficit soil water content. A sweet potato cultivar, ‘Japanese Yellow’, with water deficit tolerance attributes was the positive check in this study. Total soluble sugar content (sucrose, glucose, and fructose increased by 3.96-folds in ‘Tainung 57’ plants treated with 34 μM PBZ grown under 32.3% soil water content (SWC compared to the untreated plants, adjusting osmotic potential in the leaves and controlling stomatal closure (represented by stomatal conductance and transpiration rate. In addition, under the same treatment, free proline content (2.15 μmol g-1 FW increased by 3.84-folds when exposed to 17.5% SWC. PBZ had an improved effect on leaf size, vine length, photosynthetic pigment stability, chlorophyll fluorescence, and net photosynthetic rate; hence, delaying wilting symptoms and maintaining storage root yield (26.93 g plant-1 at the harvesting stage. A positive relationship between photon yield of PSII (ΦPSII and net photosynthetic rate was demonstrated (r2 = 0.73. The study concludes that soluble sugar and free proline enrichment in PBZ-pretreated plants may play a critical role as major osmoprotectant to control leaf osmotic potential and stomatal closure when plants were subjected to low soil water content, therefore, maintaining the physiological and morphological characters as well as storage root yield.

  12. New constraints on the magnetic history of the CV parent body and the solar nebula from the Kaba meteorite

    Science.gov (United States)

    Gattacceca, Jérôme; Weiss, Benjamin P.; Gounelle, Matthieu

    2016-12-01

    Recent paleomagnetic studies of Allende CV chondrite as well as thermal modeling suggest the existence of partially differentiated asteroids with outer unmelted and variably metamorphosed crusts overlying differentiated interiors. To further constrain the magnetic history of the CV parent body, we report here paleomagnetic results on Kaba CV chondrite. This meteorite contains 11 wt% pseudo-single domain magnetite, making it a rock with an excellent paleomagnetic recording capacity. Kaba appears to carry a stable natural remanent magnetization acquired on its parent body upon cooling in an internally generated magnetic field of about 3 μT from temperatures below 150 °C during thermal metamorphism about 10 to several tens of Myr after solar system formation. This strengthens the case for the existence of a molten advecting core in the CV parent body. Furthermore, we show that no significant magnetic field (i.e. lower than ∼ 0.3 μT) was present when aqueous alteration took place on the Kaba parent body around 4 to 6 Myr after solar system formation, suggesting a delay in the onset of the dynamo in the CV parent body and confirming that nebular fields had already decayed at that time.

  13. Avaliação da produção de batata-doce em função de níveis de adubação orgânica = Evaluation of sweet potato yield in function of organic fertilization levels

    Directory of Open Access Journals (Sweden)

    João Felinto dos Santos

    2010-10-01

    Full Text Available O presente trabalho avaliou o efeito da adubação orgânica na produçãototal de batata-doce, por meio de um experimento realizado no período de julho a novembro de 2007, na Estação Experimental de Lagoa Seca, PB, Brasil. O delineamento experimental foi em blocos casualizados com cinco tratamentos (0, 3, 6, 9 e 12 t ha-1 de cama-de-aviário, em quatro repetições. A parcela foi composta por quatro leiras de 3,6 m de comprimento, espaçados de 0,80 m entre leiras e de 0,30 m entre plantas, sendo colhidas as duas fileiras centrais. As variáveis estudadas foram: produção total, raízes de tamanho graúdas e miúdas de batata-doce. A produção de raízes graúdas, miúdas e total por planta (14,20; 3,84 e 18,03 t ha-1 de batata-doce responderam de forma linear e positiva às doses crescentes de cama-de-aviário. Aadubação com cama-de-aviário aumentou a produção de raízes graúdas, miúdas e total de batata-doce.The present study evaluated the effect of organic fertilization inthe total production of sweet potato. The experiment was performed in the period between July and November 2007, at the Lagoa Seca Experimental Station, Paraíba, Brazil. The experimental design was randomized blocks with five treatments (0, 3, 6, 9 and 12 t ha-1, in four replications. The plot consisted of four 3.6 m long ridges, spaced of 0.80 m between ridges and 0.30 m between plants; the two central ridges were harvested. The variables studied were: total yield, large and small sweet potato roots. The production of large and small roots, total yield per plant (14.20, 3.84 and 18.03 t ha-1of sweet potato, responded positively in a linear fashion to increasing doses of poultry litter. The fertilization with poultry litter increased the yield of large, small and total roots of sweet potato.

  14. Efeito da adição de soro de queijo no processo de obtenção de etanol a partir de batata-doce Addition effect of cheese whey in the process of obtaining ethanol from sweet potato

    Directory of Open Access Journals (Sweden)

    Isis Prado Meirelles de Castro

    2011-10-01

    Full Text Available Estudou-se o incremento na produção convencional de etanol de batata-doce [Ipomoea batatas (L. Lam.] incorporando soro de queijo ao processo e a variação nos teores de proteína bruta dos resíduos sólidos úmidos gerados por esses processos utilizando-se dois cultivares selecionados no estado do Tocantins. O incremento na produção convencional de álcool de batata-doce alcançou um porcentual de 16,6% quando o soro de queijo hidrolisado foi incorporado ao processo, resumidos em até 28,9 litros a mais de etanol por tonelada de raiz. Houve uma variação no teor de proteína bruta nos resíduos sólidos úmidos gerados nos processos substituídos pelo soro de queijo em comparação ao gerado pelo processo testemunha de até 32,1% a mais de proteína. Os resultados obtidos mostram a viabilidade da incorporação do soro de queijo no processo convencional de produção de etanol de batata-doce, possibilitando o reaproveitamento deste coproduto da indústria de laticínio.This work studied the increase in conventional ethanol production from sweet potato after adding cheese whey to the process, as well as variation in the amount of crude protein in solid waste generated by these processes, using two cultivars developed in Tocantins. Ethanol production increased by 16.6% when hydrolysed cheese whey was added to the process, resulting in up to 28.9 extra liters of alcohol per ton of rooted potato. Adding cheese whey to the process generated 32.1% more crude protein content in the solid waste compared with the control process. The obtained results show the viability of incorporating cheese whey in the production of ethanol from sweet potato, enabling the reuse of this by-product of the dairy industry.

  15. Proyecto constructivo de la variante de las carreteras CV-35 y CV-345 a su paso por el municipio de Titaguas (provincia de Valencia). Estudio del tráfico y de la seguridad vial.

    OpenAIRE

    ESCRIBANO RUIZ, JUAN MANUEL

    2016-01-01

    [EN] This study is based on a construction project of a road variant of the highway CV - 35 and CV - 345 in its way to the village of Titaguas that aims to improve road safety deficiencies of the current path. The study towards the targets set is properly adjusted for Final Carrer, and he put into practice the knowledge acquired during the race. First, it has analyzed traffic from a data collection collected in a manual forum. With this, we have proceeded to calculate the daily average intens...

  16. Injúria pelo frio em frutos de mamoeiro (Carica papaya L. cv 'Golden' Chilling injury in papaya fruits (Carica papaya L. cv 'Golden'

    Directory of Open Access Journals (Sweden)

    Robson Ferreira de Almeida

    2005-04-01

    Full Text Available Os sintomas da injúria pelo frio em frutos de mamoeiro cv 'Golden' foram investigados neste trabalho.Os frutos apresentando de 10% a 15% de coloração amarela na casca, foram classificados na linha de operação de embalagem da Caliman Agrícola S.A (Linhares-ES e após receberam tratamentos térmicos e químicos. Os frutos foram embalados com filmes plásticos e estocados a 6ºC e 13ºC (85-95% UR em uma incubadora (BOD por 30 dias. Em intervalos de tempo definidos, seis frutos foram analisados quanto à firmeza, mudança de cor e aparência. A firmeza foi analisada tanto na região mais externa quanto na região mais interna do mesocarpo. De acordo com os resultados encontrados, os frutos estocados a 6ºC apresentaram os sintomas de escurecimento da casca entre o sexto e o décimo segundo dia de estocagem e também não perderam a cor verde após trinta dias de estocagem, conforme identificado pelos parâmetros de Hunter L (luminosidade, Hunter a (degradação da clorofila e Hunter b (amarelecimento. A firmeza foi drasticamente reduzida nos seis primeiros dias de estocagem nas duas temperaturas. Contudo, ela permaneceu mais elevada na parte externa do mesocarpo durante todo o período de estocagem à 13ºC. Os frutos estocados à 6ºC mostraram um aumento na firmeza, nas duas partes do mesocarpo, entre o sexto e o décimo oitavo dia de armazenamento devido à incidência da injúria pelo frio.The symptoms of chilling injury in papaya fruit cv -Golden' were investigated in this work. Fruits presenting 10% to 15% of fruit skin yellowing were sorted in the packaging line of the Caliman Agrícola S.A (Linhares-ES, after received chemical and heat treatments. The fruits were wrapped in a plastic film and stored at temperatures of 6ºC and 13ºC (85-95% RH in an incubator (BOD for 30 days. At defined time intervals, six fruits were evaluated regarding to firmness, appearance and color change. The fruit firmness was evaluated as in the outer as in

  17. Organogênese a partir de segmentos foliares e internodais de videira cv. Merlot Organogenesis from leaf segments and internodes of grapevine cv. Merlot

    Directory of Open Access Journals (Sweden)

    Dayse Cristina de Carvalho

    2011-02-01

    Full Text Available Objetivou-se, neste trabalho, estudar a indução da organogênese em segmentos foliares e internódios de videira cv. Merlot, utilizando diferentes tipos e concentrações de citocininas. O meio de cultura usado foi o MS com redução da metade dos sais e vitaminas, suplementado com 1 µM de ácido naftalenoacético (ANA. Os tratamentos consistiram das concentrações de 2,5; 5,0 ou 10 µM de 6-benzilaminopurina (BAP ou 1-fenil-3-(1,2,3,-tiadiazol-5-il uréia (TDZ. Foram avaliados o porcentual de formação de gemas, calos, oxidação e raízes, além do número de raízes e gemas. Aos 60 dias de cultivo in vitro foi observado que concentrações de 2,5-10 µM de BAP e TDZ permitem que segmentos foliares oxidem e não induzam à oxidação nos internódios. O nível de 5 µM de TDZ favore o maior porcentual de formação de gemas em internódios e segmentos foliares não apresentam capacidade para formar gemas nos níveis de 2,5-10 µM de BAP ou TDZ. O uso de BAP nas concentrações de 2,5 e 5 µM favorece altos porcentuais de enraizamento em internódios. O uso de TDZ no nível de 2,5 µM promove elevada taxa de formação de calos em internódios. Os internódios apresentaram maior capacidade organogênica do que os segmentos foliares.The objective of this work was study the induction of organogenesis on leaf segments and internodes of grapevine cv. Merlot using different types and concentrations of cytokinins. MS half strength culture medium supplemented with 1 µM naftalenoacetic acid (NAA was used. The treatments consisted of the concentrations of 2.5; 5.0 or 10 µM 6-benzilaminopurine (BAP or thydiazuron (TDZ. The percentage of buds, callus, oxidation and roots as well as the number of roots and buds were evaluated. After 60 days of in vitro culture it was observed that the concentrations of 2.5-10 µM BAP or TDZ oxidize leaf segments and do not induce oxidation in the internodes. The level of 5 µM TDZ promote the largest formation of

  18. A microsatellite library for Carica papaya L. cv. Sunrise solo Marcadores microssatélites para Carica papaya L. cv. Sunrise solo

    Directory of Open Access Journals (Sweden)

    Silvia Correa Santos

    2003-08-01

    Full Text Available In experimental areas of the Education and Researches Ilha Solteira and Jaboticabal UNESP/Campus farms were selected and tagged 20 hermaphrodite plants and 20 feminine of cultivar Sunrise Solo, Improved Sunrise Solo cv.72/12 and Baixinho of Santa Amália.The seeds origined of the selected fruits were cropped to be analysed the self-pollination efficiency and frequency of the sex in the progenies. After that, samples of the young leaf of the matrix plants were colected for the extration of the DNA. It was built five library enriched of microsatellite sequencies, using probes (TCA10, (TC13, (GATA4, (CAC10 e (TGAG8.It was possible the development of the primers only in the library that has utilized the probe (TCA10. This probe allowed the design of 32 primer pairs. From these, 31 presented pattern of unique band in agarose Metaphor and in acrilamide. For primer S36 were observed 2 bands, but with no polymorphism to differentiation in the sexual form at papaya tree culture. However, these primers can be tested, in the futures, in the investigation of the others features in segregated populations of this specie and the related species, germoplasm analysis, cultivars identification, parent evolution and molecular markers for the assisted plant breeding programs.Em áreas experimentais das Fazendas de Ensino e Pesquisa da UNESP/Campus de Ilha Solteira e Jaboticabal foram selecionadas e marcadas 20 plantas hermafroditas e 20 femininas dos cultivares Sunrise Solo, Improved Sunrise Solo cv.72/12 e Baixinho de Santa Amália. As sementes provenientes dos frutos selecionados foram plantadas para analisar-se a eficiência da autofecundação e a freqüência dos sexos nas progênies. Posteriormente, amostras de tecido foliar jovem das plantas matrizes foram coletadas para a extração de DNA. Foram construídas cinco bibliotecas enriquecidas de seqüências microsatélites, utilizando-se as sondas (TCA10, (TC13, (GATA4, (CAC10 e (TGAG8. Foi possível o

  19. Energy saving in Bellota Mexico S.A. de C.V.; Ahorro de energia en Bellota Mexico S.A de C.V.

    Energy Technology Data Exchange (ETDEWEB)

    Salazar Lopez, Jose Albeiro [Bellota Mexico S.A. de C.V. (Mexico)

    2003-07-01

    The present article intends to make a general description of the different activities that were developed in Bellota Mexico S.A. de C.V. during year 2001 and which lead to obtaining the national prize of energy saving granted by the Comision Federal de Electricidad (CFE) and the Fideicomiso para el Ahorro de Energia Electrica (FIDE). In the executed actions stands out an entirely coordinated program that includes: lighting systems, motors, refrigeration systems, transformers, special projects (settling tanks), capacitors, compressed air pipeline, induction furnaces, machinery in general, maximum demand control, preventive maintenance, measuring systems, operational and organizational systems. In all these subjects a fast description is made of the performed actions and the obtained results. It is mentioned in addition the importance of making a power diagnosis and the use of historical data for the planning of the strategies to follow. Also reference is made of the use of appropriate technology that considers the use of high-energy efficiency equipment, such as motors, lamps, compressors, etc. Finally an evaluation is made of the obtained results where the improvement of the electrical parameters stands out such as: reduction of the power index in 35.06%, reduction of the maximum demand in 11.94%, increase of the power factor from 93.53% in 98.21%. The obtained results demonstrate that investing in energy saving it is a good business. [Spanish] El presente trabajo tiene por objeto hacer una descripcion general de las diferentes actividades que se desarrollaron en Bellota Mexico S.A. de C.V. durante el ano 2001 y que condujeron a la obtencion del premio nacional de ahorro de energia otorgado por la Comision Federal de Electricidad (CFE) y el Fideicomiso para el Ahorro de Energia Electrica (FIDE). En las acciones ejecutadas se destaca todo un programa coordinado que abarca: sistemas de iluminacion, motores, sistemas de refrigeracion, transformadores, proyectos

  20. Avaliação da cv. Tannat para elaboração de vinho tinto Evaluation of cv. Tannat to elaborate red wine

    Directory of Open Access Journals (Sweden)

    Luiz Antenor Rizzon

    2004-06-01

    Full Text Available A uva Tannat, originária do Sudoeste da França, foi introduzida no Rio Grande do Sul, pela Estação Experimental de Caxias do Sul. É uma cultivar difundida na Serra Gaúcha para elaboração de vinho tinto, utilizado para corte e para a produção de vinho varietal. O objetivo do presente trabalho foi avaliar o potencial enológico da cv. Tannat para a elaboração de vinho tinto fino nessa região vitícola. Para isso, realizaram-se estudos para caracterizar o cacho, o mosto e o vinho nas safras de 1987 a 1994, a partir de um vinhedo localizado em Bento Gonçalves, RS. Os resultados evidenciaram que a cv. Tannat tem cacho com peso médio de 216,1g e baga esférica pequena (1,54g. O mosto apresenta teor elevado de acidez titulável (155meq/L-1. O vinho se caracteriza por teores elevados em: polifenóis totais (I 280= 43,0, taninos (1,9g/L, antocianinas (539mg/L, potássio (1.856mg/L-1 e soma dos álcoois superiores (512mg/L-1. As características sensoriais do vinho Tannat na Serra Gaúcha evidenciam uma cor vermelha-violácea intensa, tânicos, nervosos, relativamente duros e aromas de frutas vermelhas. É recomendável para corte com outros vinhos tintos finos para intensificar sua cor e estrutura e também para a produção de vinho varietal podendo melhorar com o amadurecimento em barricas de carvalho.The Tannat grape is native to the Southwest of France, and was introduced into the State of Rio Grande do Sul by the Caxias do Sul Experimental Station. It is a cultivar diffused in the Serra Gaucha region with the purpose of elaborating varietal red wine for blending. The purpose of this work was to evaluate the enological potential of the Tannat grape for red wine in this region. To achieve this objective, variables related to the berries, clusters, must, and wine were evaluated from the 1987 to 1994 vintages, in a vineyard established in Bento Gonçalves, RS, Brazil. The results showed that Tannat grapes have large clusters (216.1g and

  1. Avaliação da cv. Merlot para elaboração de vinho tinto Evaluation of cv. Merlot to make red wine

    Directory of Open Access Journals (Sweden)

    Luiz Antenor Rizzon

    2003-12-01

    Full Text Available A uva Merlot é uma das responsáveis pelas características dos vinhos tintos de Saint Émillion, região de Bordeaux, França. Foi introduzida no Rio Grande do Sul através da Estação Agronômica de Porto Alegre. É, atualmente, uma das cultivares tinta de Vitis vinifera L. com maior volume de produção da Serra Gaúcha. É utilizada para a elaboração de vinho tinto para ser consumido jovem. O objetivo do presente trabalho foi avaliar o potencial enológico da cv. Merlot para a elaboração de vinho tinto fino. Para isso, realizaram-se estudos para caracterizar o cacho, o mosto e o vinho nas safras de 1987 a 1994, em Bento Gonçalves, RS. Os resultados evidenciaram que a cv. Merlot tem cacho com peso médio de 161,9g e baga esférica e pequena, pesando 1,61g. No mosto, o valor médio de açúcar é de 18,4ºBrix; o da acidez total, de 104meqL-1; e o do pH, de 3,21. O vinho se caracteriza por ter teores médios de 10,8% v/v de álcool; 70,3meqL-1 de acidez titulável; e pH de 3,49. Sob o aspecto sensorial, o vinho Merlot apresenta cor vermelho-violáceo com boa intensidade. Gustativamente distingue-se pela maciez, equilíbrio e fineza.Merlot is a traditional grape of the Saint Émillion wines, Bordeaux region - France. It was introduced into, the State of Rio Grande do Sul by the Estação Agronômica de Porto Alegre, Brazil. Today, of the red grape cultivars it shows the largest production in the Serra Gaúcha region. The purpose of this work was to evaluate the enological potential of Merlot grapes for red winemaking. To achieve this purpose, variables related to berry clusters, must and wine were measured between 1987 and 1994 vintages, from Merlot vineyards located in the municipality of Bento Gonçalves. The results showed that Merlot grapes have clusters of medium size (161.9g and small berries (1.61g. The must showed adequate sugar level (18.4ºBrix, high titratable acidity (104mqL-1 and medium pH 3.21. The wine Merlot had an

  2. Kinetic analysis on LiFePO{sub 4} thin films by CV, GITT, and EIS

    Energy Technology Data Exchange (ETDEWEB)

    Tang Kun; Yu Xiqian; Sun Jinpeng; Li Hong [Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China); Huang Xuejie, E-mail: xjhuang@aphy.iphy.ac.cn [Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)

    2011-05-01

    Highlights: > The average chemical diffusion coefficients of Li are 1.8 x 10{sup -14}-2.1 x 10{sup -14} cm{sup 2} s{sup -1} measured from CV. > The minimum D-tilde{sub Li} values obtained from GITT and EIS are in contradiction with other experimental data. > The deduction of D-tilde{sub Li} is highly dependent on the dE/dx values for GITT and EIS methods. - Abstract: LiFePO{sub 4} thin films were deposited on Ti substrates by pulsed laser deposition (PLD). The apparent chemical diffusion coefficients of lithium in the films, D-tilde{sub Li}, were measured by cyclic voltammetry (CV), galvanostatic intermittent titration technique (GITT), and electrochemical impedance spectroscopy (EIS). The average D-tilde{sub Li} values calculated from CV results were in the order of 10{sup -14} cm{sup 2} s{sup -1}. The D-tilde{sub Li} values obtained by GITT, and EIS techniques were in the range of 10{sup -14}-10{sup -18} cm{sup 2} s{sup -1}, 10{sup -14}-10{sup -18} cm{sup 2} s{sup -1}, respectively. The D-tilde{sub Li} values obtained by the two methods show a minimum point at x {approx} 0.5 for Li{sub 1-x}FePO{sub 4}. However, the overpotential values of the LiFePO{sub 4} thin film electrodes obtained from the GITT results and the diffusion impedance deduced from the impedance spectra also show the minimum values at x {approx} 0.5 for Li{sub 1-x}FePO{sub 4}. This contradict could be caused by the improper use of GITT and EIS techniques for measuring the chemical diffusion coefficient of Li in Li{sub 1-x}FePO{sub 4} which constitutes two phase, i.e., LiFePO{sub 4} and FePO{sub 4} in this region.

  3. Sub-ns time transfer consistency: a direct comparison between GPS CV and T2L2

    Science.gov (United States)

    Exertier, P.; Samain, E.; Courde, C.; Aimar, M.; Torre, J. M.; Rovera, G. D.; Abgrall, M.; Uhrich, P.; Sherwood, R.; Herold, G.; Schreiber, U.; Guillemot, P.

    2016-12-01

    This paper presents a direct comparison between two satellite time transfer techniques: common-view (CV) of satellites from the global positioning system (GPS) constellation, and time transfer by laser link (T2L2) through the low orbiting satellite Jason-2. We describe briefly both techniques, together with two independent relative calibration campaigns of the links involving four European laboratories. Between the same remote time scale reference points, the mean values of the calibrated differences between GPS CV and T2L2 are below 240 ps, with standard deviations below 500 ps, mostly due to GPS CV. Almost all sample deviations from 0 ns are within the combined uncertainty estimates. Despite the relatively small number of common points obtained, due to the fact that T2L2 is weather dependent, these results provide an unprecedented sub-ns consistency between two independently calibrated microwave and optical satellite time transfer techniques.

  4. Armazenamento de pêssegos (Prunus persica (L. Batsch, cv. Chiripá, em atmosfera controlada The storaging of peaches cv. Chiripá, in controlled atmosphere

    Directory of Open Access Journals (Sweden)

    GILMAR ANTÔNIO NAVA

    2002-08-01

    Full Text Available O experimento foi conduzido com o objetivo de avaliar diferentes pressões parciais de O2 e CO2 durante o armazenamento em atmosfera controlada (AC sobre a qualidade físico-química de pêssegos, cv. Chiripá. As pressões parciais de gases avaliadas foram: 0,8kPaO2/3kPaCO2; 1kPaO2/3kPaCO2; 1kPaO2/4kPaCO2; 1kPaO2/5kPaCO2; 2kPaO2/6kPaCO2; 2kPaO2/7kPaCO2, 2kPaO2/8kPaCO2, ar/10kPaCO2 e tratamento-controle, mantido sob armazenamento refrigerado (AR. O delineamento experimental utilizado foi o inteiramente casualizado, com quatro repetições de 20 frutos. As avaliações foram realizadas após 4 e 8 semanas de armazenamento a -0,5ºC ± 0,2ºC, mais 2 dias a 20ºC. Os resultados evidenciaram que o controle de atmosfera reduz a degradação da clorofila da epiderme e a perda de peso, porém tem pouco efeito sobre a firmeza, teor de só lidos solúveis totais (SST e acidez titulável dos frutos. A pressão parcial de 1kPa de O2, associada a 3kPa de CO2, reduz a manifestação dos sintomas de lanosidade durante 8 semanas de armazenamento. A incidência de podridões dos frutos é reduzida quando armazenados sob a condição de 2kPa de O2, associada a 8kPa de CO2. Tanto o armazenamento refrigerado quanto o armazenamento sob atmosfera controlada mantêm boa qualidade dos frutos por quatro semanas a -0,5ºC, mais 2 dias a 20ºC. Oito semanas de armazenamento em AC é um período muito prolongado para uma satisfatória manutenção da qualidade de pêssegos da cultivar Chiripá. A elevada incidência de podridões e de lanosidade são as causas que mais contribuem para a redução da qualidade de pêssegos, cv. Chiripá, durante períodos prolongados de armazenamento.The experiment was carried out with the objective to evaluate different partial pressures of O2 and CO2 in controlled atmosphere storage on the quality 'Chiripá' peaches. The evaluated controlled atmospheres conditions were: 0,8kPaO2/3kPaCO2; 1kPaO2/3kPaCO2; 1kPaO2/4kPaCO2; 1kPaO2/5kPaCO2; 2

  5. Contrasting Size Distributions of Chondrules and Inclusions in Allende CV3

    Science.gov (United States)

    Fisher, Kent R.; Tait, Alastair W.; Simon, Jusin I.; Cuzzi, Jeff N.

    2014-01-01

    There are several leading theories on the processes that led to the formation of chondrites, e.g., sorting by mass, by X-winds, turbulent concentration, and by photophoresis. The juxtaposition of refractory inclusions (CAIs) and less refractory chondrules is central to these theories and there is much to be learned from their relative size distributions. There have been a number of studies into size distributions of particles in chondrites but only on relatively small scales primarily for chondrules, and rarely for both Calcium Aluminum-rich Inclusions (CAIs) and chondrules in the same sample. We have implemented macro-scale (25 cm diameter sample) and high-resolution microscale sampling of the Allende CV3 chondrite to create a complete data set of size frequencies for CAIs and chondrules.

  6. Analisis Pengaruh Kemampuan, Usaha dan Dukungan Perusahaan terhadap Kinerja Karyawan pada CV Sandang Gloria Konveksindo

    Directory of Open Access Journals (Sweden)

    Jerry Marcellinus Logahan

    2012-04-01

    Regression, and Multiple Regression. Data obtained from the appraisal of employee performance by filling in the questionnaire that has been provided by using a Likert scale that is useful to know the degree of disagreement and agreement existing employees to the question on the questionnaire. The results achieved in this study were the ability of employees to work have an influence for 28.8% of employee performance, employee efforts in working to have the effect of 50.6% on employee performance, corporate support for work processes have the effect of 47.7% the performance of employees, while the ability of employees, employee efforts, and support the company has influence for 66.3% of the employee's performance CV Gloria Konveksindo Clothing. With this capability expected of employees, employee efforts, and support the company serve as the main factor to improve employee performance.

  7. Study of the TAF 2012 DriveLine (CV-CD

    Directory of Open Access Journals (Sweden)

    Alexandru POZDÎRCĂ

    2016-06-01

    Full Text Available TAF is the acronym for Articulated Forestry Tractor – a heavy vehicle uses in a logging operation for pulling cut trees out of a forest, in a process called “skidding”. TAF use a cardan shafts transmission from the gear box (CV to distribution box (CD. The distribution box split the movement thru axels or winch. The study applied the cardan theory on a specific case and based on the numeric results a few design modifications are proposed for reducing the angular velocity pulse on the CD input shaft. Theoretical results may have a significant importance in practice, impacting the reduction of transmission noise and vibrations - already claimed in the case of the distribution box for the current constructive solution. An original AutoLISP program are made in order to analyze and optimize the transmission, with graphical results.

  8. Development of seedlings of watermelon cv. Crimson Sweet irrigated with biosaline water

    Directory of Open Access Journals (Sweden)

    José E. S. B. da Silva

    2015-09-01

    Full Text Available ABSTRACTThe limited access and the scarcity of good quality water for agriculture are some of the major problems faced in agricultural areas, particularly in arid and semiarid regions. The aim of this study was to evaluate the quality of watermelon seedlings (cv. Crimson Sweet, irrigated with different concentrations of biosaline water of fish culture. The experimental design was completely randomized with five treatments, corresponding to biosaline water at different concentrations (0, 33, 50, 67 and 100%, and four replicates of 108 seedlings. Watermelon seeds were sown in plastic trays filled with commercial substrate and irrigated with different solutions of biosaline water. Seedlings were harvested for biometric analysis at 14, 21 and 28 days after sowing. The use of biosaline water did not affect emergence and establishment of seedlings until 14 days after sowing, the period recommended for transplantation. However, the use of biosaline water affected the development of seedlings with longer exposure time.

  9. Altitudinal variation of secondary metabolite profiles in flowering heads of Matricaria chamomilla cv. BONA.

    Science.gov (United States)

    Ganzera, Markus; Guggenberger, Manuela; Stuppner, Hermann; Zidorn, Christian

    2008-03-01

    The altitudinal variation of the contents of secondary metabolites in flowering heads of Matricaria chamomilla L. (Asteraceae) was assessed. Plants of M. chamomilla cultivar BONA were grown in nine experimental plots at altitudes between 590 and 2,230 m at Mount Patscherkofel near Innsbruck/Austria. The amounts of flavonoids and phenolic acids were quantified by HPLC/DAD. For both flavonoids and phenolic acids positive (r = 0.559 and 0.587) and statistically significant (both p < 0.001) correlations with the altitude of the growing site were observed. The results are compared to previous results on Arnica montana L. cv. ARBO. Moreover, various ecological factors, which change with the altitude of the growing site, are discussed as potential causes for the observed variation.

  10. Proliferation Potential of 18-Month-Old Callus of Ananas comosus L. cv. Moris

    Directory of Open Access Journals (Sweden)

    A.E. De Silva

    2006-01-01

    Full Text Available Differential effect of plant growth regulators and additives in proliferation of 18-month-old calli of Ananas comosus L. cv. Moris were assessed in vitro. The proliferation of callus relied on the growth regulators and additives. Of the different auxins supplemented in the Murashige and Skoog (MS media, 32.22 μM α-naphthaleneacetic acid (NAA gave the highest mean fresh weight of callus (46.817 g. Medium supplemented with 2,4-dichlorophenoxyacetic acid (2,4-D was inferior to NAA, while b-naphthoxy acetic acid (BNOA and p-chlorophenoxy acetic acid (4-CPA were not effective in proliferating 18-months old callus. Addition of casein hydrolysate and coconut water to NAA supplemented medium showed better proliferation and production of callus. However, in terms of callus production, NAA at 32.22 μM was economically better.

  11. The effect of shared structure and content on reading nonwords: evidence for a CV skeleton.

    Science.gov (United States)

    Berent, I; Bouissa, R; Tuller, B

    2001-07-01

    Four experiments examined the effect of shared skeletal structure versus content overlap on naming printed nonwords. Experiments 1-2 compared priming among nonwords sharing either skeletal structure and content (e.g., dus-DUS) or structure alone (e.g., pid-BAF) with controls that differed from the target in the number of skeleton slots (e.g., pid-BAF vs. plid-BAF). Conversely, in Experiments 3-4, same-versus different-structure primes contrasted only in the ordering of CV skeletal slots (e.g., fap-DUS vs. ift-DUS). Priming effects were modulated by shared content and skeletal similarity. The sensitivity of skeletal priming to the abstract arrangement of consonants and vowels suggests that skeletal representations assign distinct slots for consonants and vowels. Readers' sensitivity to skeletal structure in nonword identification indicates that assembled phonological representations are constrained by linguistic knowledge.

  12. Radical-scavenging activities of new hydroxylated ursane triterpenes from cv. Annurca apples.

    Science.gov (United States)

    D'Abrosca, Brigida; Fiorentino, Antonio; Monaco, Pietro; Pacifico, Severina

    2005-07-01

    Two new ursolic acid triterpene derivatives, compounds 2 and 3, have been isolated from cv. Annurca apple fruit, a high-quality apple variety widely cultivated in southern Italy, together with the known 2-oxopomolic acid (1). The new compounds were identified by means of different spectroscopic techniques as 3-epi-2-oxopomolic acid (= (3alpha)-3,19-dihydroxy-2-oxours-12-en-28-oic acid; 2) and (1alpha)-1-hydroxy-3-oxours-12-en-28-oic acid (3). Compounds 1-3 were tested for their radical-scavenging activities with the aid of a 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay (Fig. 2). All three constituents showed activities similar to that of the reference antioxidant alpha-tocopherol (vitamin E).

  13. Analysis of morphological traits of bird's foot trefoil plants cv. Bokor transformed with Agrobacterium rhizogenes

    Directory of Open Access Journals (Sweden)

    Nikolić Radomirka

    2005-01-01

    Full Text Available An efficient method for genetic transformation and shoot regeneration was achieved in bird's foot trefoil cv. Bokor using A. rhizogens. The transformed shoots were regenerated on hairy root segments in high frequency. After rooting and acclimation, transformed To plants were grown in experimental field. Analysis of morphological traits and chemical content in ten unintentionally chosen To bird's foot trefoil plants (genotypes no. 2 and no. 5 was performed. They were compared to those of control non-transformed plants. The traits as a number of stems per plant, length of internodes in longest stem, number of flowers per plant and plan high were very significant differed than the same traits in control plants, while there were no significant differences in the leaf area. No signs of the rol genes genotype and "T" phenotype were present. The transformed plants had significantly higher content of cellulose, while the protein and nitrogen contents of are in the range of control plants.

  14. TS-CV contracts for the LHC case study for the TS workshop 2004

    CERN Document Server

    Inigo-Golfin, J; CERN. Geneva. TS Department

    2004-01-01

    The cooling and ventilation group deals with a great number of supplies and installation contracts, as well as some service ones, in relation to the LHC project. In the course of the last years the group has increased its experience in the handling of these contracts in particular as a consequence of the difficult situations sometimes faced, which have been trying but enriching. This paper reviews some statistics on the performance of the CV contracts and draws some conclusions from a set of key cases. These cases can be helpful in identifying possible weak points during the different project phases (engineering, tendering and contracting, installation, etc.) and can provide a basis for the discussion of potential solutions.

  15. Micropropagation from cultured nodal explants of rose (Rosa hybrida L. cv. ‘Perfume Delight’

    Directory of Open Access Journals (Sweden)

    Kamnoon Kanchanapoom

    2010-01-01

    Full Text Available A method for the micropropagation of rose (Rosa hybrida L. cv. ‘Perfume Delight’ was developed. First to fifth nodal explants from young healthy shoots were excised and cultured on basal medium of Murashige and Skoog (1962, MS containing several concentrations of BA and NAA. Multiple shoot formation of up to 3 shoots was obtained on MS medium supplemented with 3 mg/l BA and 0.003 mg/l NAA. Shoot readily rooted on ¼MS medium devoid of growth regulators.Rooted plantlets were hardened and established in pots at 100% survival. In vitro flowering was observed on rose plantscultured on MS medium containing 3 mg/l BA and 0.003 mg/l NAA.

  16. The fractionation of noble gases in diamonds of CV3 Efremovka chondrite

    Science.gov (United States)

    Fisenko, A. V.; Verchovsky, A. B.; Semjonova, L. F.; Shukolyukov, Yu. A.

    1993-01-01

    It was shown that in diamonds of Efremovka CV3 the noble gases with normal isotopic compositions are fractionated in different degree while the correlation of isotopic anomalous components is nearly constant. Some data for noble gases in DE-4 sample of Efremovka chondrite are considered. In contrast to DE-2 sample the DE-4 was treated except conc. HClO4, 220 C in addition with mixture of conc. H2SO4+H3PO4 (1:1), 220 C, twice. Noble gases analysis were performed in Germany at Max Plank Institute fur Chemie. Noble gases were released by oxidation of samples at stepped heating from 420 C to 810 C and by pyrolysis at 580, 590, and 680 C.

  17. OpenCV-Based Nanomanipulation Information Extraction and the Probe Operation in SEM

    Directory of Open Access Journals (Sweden)

    Dongjie Li

    2015-02-01

    Full Text Available Aimed at the established telenanomanipulation system, the method of extracting location information and the strategies of probe operation were studied in this paper. First, the machine learning algorithm of OpenCV was used to extract location information from SEM images. Thus nanowires and probe in SEM images can be automatically tracked and the region of interest (ROI can be marked quickly. Then the location of nanowire and probe can be extracted from the ROI. To study the probe operation strategy, the Van der Waals force between probe and a nanowire was computed; thus relevant operating parameters can be obtained. With these operating parameters, the nanowire in 3D virtual environment can be preoperated and an optimal path of the probe can be obtained. The actual probe runs automatically under the telenanomanipulation system's control. Finally, experiments were carried out to verify the above methods, and results show the designed methods have achieved the expected effect.

  18. Defect Detection in Superconducting Radiofrequency Cavity Surface Using C + + and OpenCV

    Science.gov (United States)

    Oswald, Samantha; Thomas Jefferson National Accelerator Facility Collaboration

    2014-03-01

    Thomas Jefferson National Accelerator Facility (TJNAF) uses superconducting radiofrequency (SRF) cavities to accelerate an electron beam. If theses cavities have a small particle or defect, it can degrade the performance of the cavity. The problem at hand is inspecting the cavity for defects, little bubbles of niobium on the surface of the cavity. Thousands of pictures have to be taken of a single cavity and then looked through to see how many defects were found. A C + + program with Open Source Computer Vision (OpenCV) was constructed to reduce the number of hours searching through the images and finds all the defects. Using this code, the SRF group is now able to use the code to identify defects in on-going tests of SRF cavities. Real time detection is the next step so that instead of taking pictures when looking at the cavity, the camera will detect all the defects.

  19. Proliferation potential of 18-month-old callus of Ananas comosus L. cv. Moris.

    Science.gov (United States)

    De Silva, A E; Kadir, M A; Aziz, M A; Kadzimin, S

    2006-02-17

    Differential effect of plant growth regulators and additives in proliferation of 18-month-old calli of Ananas comosus L. cv. Moris were assessed in vitro. The proliferation of callus relied on the growth regulators and additives. Of the different auxins supplemented in the Murashige and Skoog (MS) media, 32.22 microM alpha-naphthaleneacetic acid (NAA) gave the highest mean fresh weight of callus (46.817 g). Medium supplemented with 2,4-dichlorophenoxyacetic acid (2,4-D) was inferior to NAA, while b-naphthoxy acetic acid (BNOA) and p-chlorophenoxy acetic acid (4-CPA) were not effective in proliferating 18-months old callus. Addition of casein hydrolysate and coconut water to NAA supplemented medium showed better proliferation and production of callus. However, in terms of callus production, NAA at 32.22 microM was economically better.

  20. In vitro reactivity of Begonia semperflorens cv. ‘Ambassador’ white to growth regulators

    Directory of Open Access Journals (Sweden)

    Julieta - Emilia ROMOCEA

    2011-05-01

    Full Text Available The objective of this experiment was to investigate the regeneration potential of a Begonia semperflorens cv. ‘Ambassador’ White cultivated on Murashige-Skoog standard mineral medium, supplemented with different combinations of growth regulators. After 90 days of in vitro culture, multiple shoots with 13.3 mm diameter with 12.5 leaves over 6 mm in diameter and with 4-5 buds, were efficiently obtained from the subcultured small propagules on variant V2 - mineral basic medium culture MB - MS supplemented with 1.5 mg / l thidiazuron. Callus induction was favored only on experimental variant V3 - mineral basic medium culture MB - MS supplemented with a mix of 1.5 mg / l 3-Indolebutyric acid plus 1.5 mg / l thidiazuron, with highest diame