Impacts of invasive nonnative plant species on the rare forest herb Scutellaria montana

Science.gov (United States)

Sikkema, Jordan J.; Boyd, Jennifer N.

2015-11-01

Invasive plant species and overabundant herbivore populations have the potential to significantly impact rare plant species given their increased risk for local extirpation and extinction. We used interacting invasive species removal and grazer exclusion treatments replicated across two locations in an occurrence of rare Scutellaria montana (large-flowered skullcap) in Chattanooga, Tennessee, USA, to assess: 1) competition by invasive Ligustrum sinense (Chinese privet) and Lonicera japonica (Japanese honeysuckle) and 2) the role of invasive species in mediating Oedocoilus virginianus (white-tailed deer) grazing of S. montana. Contrary to our hypothesis that invasive species presence would suppress S. montana directly via competition, S. montana individuals experienced a seasonal increase in stem height when invasive species were intact but not when invasive species were removed. Marginally significant results indicated that invasive species may afford S. montana protection from grazers, and we suggest that invasive species also could protect S. montana from smaller herbivores and/or positively influence abiotic conditions. In contrast to growth responses, S. montana individuals protected from O. virginianus exhibited a decrease in flowering between seasons relative to unprotected plants, but invasive species did not affect this variable. Although it has been suggested that invasive plant species may negatively influence S. montana growth and fecundity, our findings do not support related concerns. As such, we suggest that invasive species eradication efforts in S. montana habitat could be more detrimental than positive due to associated disturbance. However, the low level of invasion of our study site may not be representative of potential interference in more heavily infested habitat.

75 FR 42125 - Notice of Public Meeting, Eastern Montana Resource Advisory Council Meeting

Science.gov (United States)

2010-07-20

... Public Meeting, Eastern Montana Resource Advisory Council Meeting AGENCY: Bureau of Land Management... Interior, Bureau of Land Management (BLM) Eastern Montana Resource Advisory Council (RAC) will meet as indicated below. DATES: The next regular meeting of the Eastern Montana Resource Advisory Council will be...

75 FR 3489 - Notice of Public Meeting, Eastern Montana Resource Advisory Council Meeting

Science.gov (United States)

2010-01-21

... Public Meeting, Eastern Montana Resource Advisory Council Meeting AGENCY: Bureau of Land Management... Interior, Bureau of Land Management (BLM) Eastern Montana Resource Advisory Council (RAC), will meet as indicated below. DATES: The next regular meeting of the Eastern Montana Resource Advisory Council will be...

Karyomorphometric analysis of Fritillaria montana group in Greece

Directory of Open Access Journals (Sweden)

Sofia Samaropoulou

2016-12-01

Full Text Available Fritillaria Linnaeus, 1753 (Liliaceae is a genus of geophytes, represented in Greece by 29 taxa. Most of the Greek species are endemic to the country and/or threatened. Although their classical cytotaxonomic studies have already been presented, no karyomorphometric analysis has ever been given. In the present study, the cytological results of Fritillaria montana Hoppe ex W.D.J. Koch, 1832 group, which includes F. epirotica Turrill ex Rix, 1975 and F. montana are statistically evaluated for the first time. Further indices about interchromosomal and intrachromosomal asymmetry are given. A new population of F. epirotica is also investigated, while for F. montana, a diploid individual was found in a known as triploid population. Paired t-tests and PCoA analysis have been applied to compare the two species.

Karyomorphometric analysis of Fritillaria montana group in Greece.

Science.gov (United States)

Samaropoulou, Sofia; Bareka, Pepy; Kamari, Georgia

2016-01-01

Fritillaria Linnaeus, 1753 (Liliaceae) is a genus of geophytes, represented in Greece by 29 taxa. Most of the Greek species are endemic to the country and/or threatened. Although their classical cytotaxonomic studies have already been presented, no karyomorphometric analysis has ever been given. In the present study, the cytological results of Fritillaria montana Hoppe ex W.D.J. Koch, 1832 group, which includes Fritillaria epirotica Turrill ex Rix, 1975 and Fritillaria montana are statistically evaluated for the first time. Further indices about interchromosomal and intrachromosomal asymmetry are given. A new population of Fritillaria epirotica is also investigated, while for Fritillaria montana , a diploid individual was found in a known as triploid population. Paired t-tests and PCoA analysis have been applied to compare the two species.

77 FR 42507 - Notice of Public Meeting, Eastern Montana Resource Advisory Council Meeting

Science.gov (United States)

2012-07-19

... Public Meeting, Eastern Montana Resource Advisory Council Meeting AGENCY: Bureau of Land Management... Interior, Bureau of Land Management (BLM) Eastern Montana Resource Advisory Council (RAC) will meet as indicated below. DATES: The next regular meeting of the Eastern Montana RAC will be held on September 19...

77 FR 70807 - Notice of Public Meeting, Eastern Montana Resource Advisory Council Meeting

Science.gov (United States)

2012-11-27

... Public Meeting, Eastern Montana Resource Advisory Council Meeting AGENCY: Bureau of Land Management... Interior, Bureau of Land Management (BLM) Eastern Montana Resource Advisory Council (RAC) will meet as indicated below. DATES: The next regular meeting of the Eastern Montana RAC will be held on December 6, 2012...

77 FR 42760 - Notice of Public Meeting, Eastern Montana Resource Advisory Council Meeting

Science.gov (United States)

2012-07-20

... Public Meeting, Eastern Montana Resource Advisory Council Meeting AGENCY: Bureau of Land Management... Interior, Bureau of Land Management (BLM) Eastern Montana Resource Advisory Council (RAC) will meet as indicated below. DATES: The next regular meeting of the Eastern Montana RAC will be held on September 19...

Bioacoustic investigations and taxonomic considerations on the Cicadetta montana species complex (Homoptera: Cicadoidea: Tibicinidae

Directory of Open Access Journals (Sweden)

Matija Gogala

2004-06-01

Full Text Available Recent bioacoustic investigations have shown that Cicadetta montana Scopoli 1772 is a complex of morphologically similar sister species that are best characterized by their song patterns. At the type locality of C. montana, only mountain cicadas with simple, long lasting song phrases were heard, recorded and collected. Therefore, we have good reasons to suggest that this type of song is characteristic for C. montana s. str. Boulard described a song of C. montana from France with phrases composed of a long and a short echeme; this type of song is characteristic for cicadas morphologically corresponding to C. montana var. brevipennis Fieber 1876; we suggest to raise this taxon to species level. On the basis of specific song, Puissant and Boulard described C. cerdaniensis from Pyrénées. A similar case was the discovery and description of C. montana macedonica Schedl 1999 from Macedonia; since these Macedonian cicadas are sympatric with at least two other cryptic species in the C. montana group and molecular investigations showed substantial genetic differences between C. macedonica and C. montana or C. brevipennis, we conclude that this taxon should also be raised to species level. Songs of closely related C. podolica and Korean mountain cicada are presented as well.Pesquisas recentes de bioacústica mostraram que Cicadetta montana Scopoli 1772 é um complexo de espécie-irmãs morfologicamente semelhantes e melhor caracterizadas por seus padrões de canto. Na localidade-tipo de C. montana somente cigarras serranas de longas frases de canto foram ouvidas, gravadas e coletadas. Portanto, temos boas razões para propor este tipo de canto como característico de C. montana s. str. Boulard descreveu um canto de C. montana da França com frases compostas de uma estridulação longa e uma curta; este tipo de canto é característico das cigarras correspondendo morfologicamente a C. montana var. brevipennis Fieber 1876; sugerimos elevar este táxon ao n

Montana Department of Transportation - a fine feathered friend

OpenAIRE

Wambach, Deborah A.; Traxler, Mark A.; Eakin, Kirk W.

2001-01-01

Funding Source: Federal Highway Administration (FHWA) Total Budget: $1000 - $5000 per project Project Period: Ongoing Since 1995 In Montana, across the nation, and around the world, highway construction activities often come into direct conflict with migratory and other nesting bird species, frequently resulting in habitat loss, the interruption of breeding and rearing activities, or even mortality. The Montana Department of Transportation (MDT) has considered this issue under the permitting...

Wolf Point Substation, Roosevelt County, Montana

International Nuclear Information System (INIS)

1991-05-01

The Western Area Power Administration (Western), an agency of the United States Department of Energy, is proposing to construct the 115-kV Wolf Point Substation near Wolf Point in Roosevelt County, Montana (Figure 1). As part of the construction project, Western's existing Wolf Point Substation would be taken out of service. The existing 115-kV Wolf Point Substation is located approximately 3 miles west of Wolf Point, Montana (Figure 2). The substation was constructed in 1949. The existing Wolf Point Substation serves as a ''Switching Station'' for the 115-kV transmission in the region. The need for substation improvements is based on operational and reliability issues. For this environmental assessment (EA), the environmental review of the proposed project took into account the removal of the old Wolf Point Substation, rerouting of the five Western lines and four lines from the Cooperatives and Montana-Dakota Utilities Company, and the new road into the proposed substation. Reference to the new proposed Wolf Point Substation in the EA includes these facilities as well as the old substation site. The environmental review looked at the impacts to all resource areas in the Wolf Point area. 7 refs., 6 figs

Danish apple cultivars

DEFF Research Database (Denmark)

Larsen, Bjarne; Pedersen, Carsten; Ørgaard, Marian

2017-01-01

Abstract We made a genetic analysis of about 500 apple cultivars, which either originate from Denmark or have been of greater importance in Denmark. To study the diversity and parentage among the cultivars, 15 SSR markers were used. A new PCR-based protocol for identification of S-alleles was dev......Abstract We made a genetic analysis of about 500 apple cultivars, which either originate from Denmark or have been of greater importance in Denmark. To study the diversity and parentage among the cultivars, 15 SSR markers were used. A new PCR-based protocol for identification of S...

Cultivar identification and genetic relationship of pineapple (Ananas comosus) cultivars using SSR markers.

Science.gov (United States)

Lin, Y S; Kuan, C S; Weng, I S; Tsai, C C

2015-11-25

The genetic relationships among 27 pineapple [Ananas comosus (L.) Merr.] cultivars and lines were examined using 16 simple sequence repeat (SSR) markers. The number of alleles per locus of the SSR markers ranged from 2 to 6 (average 3.19), for a total of 51 alleles. Similarity coefficients were calculated on the basis of 51 amplified bands. A dendrogram was created according to the 16 SSR markers by the unweighted pair-group method. The banding patterns obtained from the SSR primers allowed most of the cultivars and lines to be distinguished, with the exception of vegetative clones. According to the dendrogram, the 27 pineapple cultivars and lines were clustered into three main clusters and four individual clusters. As expected, the dendrogram showed that derived cultivars and lines are closely related to their parental cultivars; the genetic relationships between pineapple cultivars agree with the genealogy of their breeding history. In addition, the analysis showed that there is no obvious correlation between SSR markers and morphological characters. In conclusion, SSR analysis is an efficient method for pineapple cultivar identification and can offer valuable informative characters to identify pineapple cultivars in Taiwan.

Streamflow characteristics based on data through water year 2009 for selected streamflow-gaging stations in or near Montana: Chapter E in Montana StreamStats

Science.gov (United States)

McCarthy, Peter M.

2016-04-05

Chapter E of this Scientific Investigations Report documents results from a study by the U.S. Geological Survey, in cooperation with the Montana Department of Environmental Quality and the Montana Department of Natural Resources and Conservation, to provide an update of statewide streamflow characteristics based on data through water year 2009 for streamflow-gaging stations in or near Montana. Streamflow characteristics are presented for 408 streamflow-gaging stations in Montana and adjacent areas having 10 or more years of record. Data include the magnitude and probability of annual low and high streamflow, the magnitude and probability of low streamflow for three seasons (March–June, July–October, and November–February), streamflow duration statistics for monthly and annual periods, and mean streamflows for monthly and annual periods. Streamflow is considered to be regulated at streamflow-gaging stations where dams or other large-scale human modifications affect 20 percent or more of the contributing drainage basin. Separate streamflow characteristics are presented for the unregulated and regulated periods of record for streamflow-gaging stations with sufficient data.

Residential Energy Efficiency Potential: Montana

Energy Technology Data Exchange (ETDEWEB)

Wilson, Eric J [National Renewable Energy Laboratory (NREL), Golden, CO (United States)

2017-11-22

Energy used by Montana single-family homes that can be saved through cost-effective improvements. Prepared by Eric Wilson and Noel Merket, NREL, and Erin Boyd, U.S. Department of Energy Office of Energy Policy and Systems Analysis.

Forest regions of Montana

Science.gov (United States)

Stephen F. Arno

1979-01-01

In this paper, Montana is divided into eight geographic subdivisions called "forest regions," based on distributions of tree and undergrowth species and the relationship of these patterns to climate and topography. The regions serve as a geographic reference for describing patterns of forest vegetation across the State. Data on the distributions of plant...

Methods for estimating peak-flow frequencies at ungaged sites in Montana based on data through water year 2011: Chapter F in Montana StreamStats

Science.gov (United States)

Sando, Roy; Sando, Steven K.; McCarthy, Peter M.; Dutton, DeAnn M.

2016-04-05

The U.S. Geological Survey (USGS), in cooperation with the Montana Department of Natural Resources and Conservation, completed a study to update methods for estimating peak-flow frequencies at ungaged sites in Montana based on peak-flow data at streamflow-gaging stations through water year 2011. The methods allow estimation of peak-flow frequencies (that is, peak-flow magnitudes, in cubic feet per second, associated with annual exceedance probabilities of 66.7, 50, 42.9, 20, 10, 4, 2, 1, 0.5, and 0.2 percent) at ungaged sites. The annual exceedance probabilities correspond to 1.5-, 2-, 2.33-, 5-, 10-, 25-, 50-, 100-, 200-, and 500-year recurrence intervals, respectively.Regional regression analysis is a primary focus of Chapter F of this Scientific Investigations Report, and regression equations for estimating peak-flow frequencies at ungaged sites in eight hydrologic regions in Montana are presented. The regression equations are based on analysis of peak-flow frequencies and basin characteristics at 537 streamflow-gaging stations in or near Montana and were developed using generalized least squares regression or weighted least squares regression.All of the data used in calculating basin characteristics that were included as explanatory variables in the regression equations were developed for and are available through the USGS StreamStats application (http://water.usgs.gov/osw/streamstats/) for Montana. StreamStats is a Web-based geographic information system application that was created by the USGS to provide users with access to an assortment of analytical tools that are useful for water-resource planning and management. The primary purpose of the Montana StreamStats application is to provide estimates of basin characteristics and streamflow characteristics for user-selected ungaged sites on Montana streams. The regional regression equations presented in this report chapter can be conveniently solved using the Montana StreamStats application.Selected results from

A Study of Programs and Services: An Action Report. Montana State Dissemination Worksessions, Office of Public Instruction (Helena, Montana, November and December 1979 and January 1980).

Science.gov (United States)

Northwest Regional Educational Lab., Portland, OR.

Input into the design, content, and development of a comprehensive resource tool--the Montana Educational Resources and Services notebook--was provided by the 16 members of a planning team made up of Office of Public Instruction (OPI) managers and consultants, selected Montana educators, and Northwest Regional Educational Laboratory Dissemination…

Rapid identification of red-flesh loquat cultivars using EST-SSR markers based on manual cultivar identification diagram strategy.

Science.gov (United States)

Li, X Y; Xu, H X; Chen, J W

2014-04-29

Manual cultivar identification diagram is a new strategy for plant cultivar identification based on DNA markers, providing information to efficiently separate cultivars. We tested 25 pairs of apple EST-SSR primers for amplification of PCR products from loquat cultivars. These EST-SSR primers provided clear amplification products from the loquat cultivars, with a relatively high transferability rate of 84% to loquat; 11 pairs of primers amplified polymorphic products. After analysis of 24 red-fleshed loquat accessions, we found that only 7 pairs of primers could clearly separate all of them. A cultivar identification diagram of the 24 cultivars was constructed using polymorphic bands from the DNA fingerprints and EST-SSR primers. Any two of the 24 cultivars could be rapidly separated from each other, according to the polymorphic bands from the cultivars; the corresponding primers were marked in the correct position on the cultivar identification diagram. This red-flesh loquat cultivar identification diagram can separate the 24 red-flesh loquat cultivars, which is of benefit for loquat cultivar identification for germplasm management and breeding programs.

76 FR 59338 - Approval and Promulgation of Air Quality Implementation Plans; Montana; Revisions to the...

Science.gov (United States)

2011-09-26

... to other minor administrative changes to the Administrative Rules of Montana. The intended effect of... words EPA, we, us or our mean or refer to the United States Environmental Protection Agency. (iii) The... Promulgation of Air Quality Implementation Plans; Montana; Revisions to the Administrative Rules of Montana...

Peak-flow frequency analyses and results based on data through water year 2011 for selected streamflow-gaging stations in or near Montana: Chapter C in Montana StreamStats

Science.gov (United States)

Sando, Steven K.; McCarthy, Peter M.; Dutton, DeAnn M.

2016-04-05

Chapter C of this Scientific Investigations Report documents results from a study by the U.S. Geological Survey, in cooperation with the Montana Department of Transportation and the Montana Department of Natural Resources, to provide an update of statewide peak-flow frequency analyses and results for Montana. The purpose of this report chapter is to present peak-flow frequency analyses and results for 725 streamflow-gaging stations in or near Montana based on data through water year 2011. The 725 streamflow-gaging stations included in this study represent nearly all streamflowgaging stations in Montana (plus some from adjacent states or Canadian Provinces) that have at least 10 years of peak-flow records through water year 2011. For 29 of the 725 streamflow-gaging stations, peak-flow frequency analyses and results are reported for both unregulated and regulated conditions. Thus, peak-flow frequency analyses and results are reported for a total of 754 analyses. Estimates of peak-flow magnitudes for 66.7-, 50-, 42.9-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities are reported. These annual exceedance probabilities correspond to 1.5-, 2-, 2.33-, 5-, 10-, 25-, 50-, 100-, 200-, and 500-year recurrence intervals.

76 FR 46320 - Notice of Filing of Plats of Survey; Montana

Science.gov (United States)

2011-08-02

... survey of the lands described below in the BLM Montana State Office, Billings, Montana, on September 1... telecommunications device for the deaf (TDD) may call the Federal Information Relay Service (FIRS) at 1-800-877-8339..., in front of section 30, and certain division of accretion and partition lines, the subdivision of...

77 FR 7531 - Disapproval and Promulgation of Air Quality Implementation Plans; Montana; Revisions to the...

Science.gov (United States)

2012-02-13

... airborne pollutant, except lead,\\1\\ must obtain a Montana air quality permit except as provided in ARM 17.8... more than 15 tons per year of any airborne pollutant, other than lead, to obtain a Montana air quality permit. \\1\\ Facilities or emitting units that emit airborne lead must obtain a Montana air quality permit...

Echinococcus granulosus in gray wolves and ungulates in Idaho and Montana, USA.

Science.gov (United States)

Foreyt, William J; Drew, Mark L; Atkinson, Mark; McCauley, Deborah

2009-10-01

We evaluated the small intestines of 123 gray wolves (Canis lupus) that were collected from Idaho, USA (n=63), and Montana, USA (n=60), between 2006 and 2008 for the tapeworm Echinococcus granulosus. The tapeworm was detected in 39 of 63 wolves (62%) in Idaho, USA, and 38 of 60 wolves (63%) in Montana, USA. The detection of thousands of tapeworms per wolf was a common finding. In Idaho, USA, hydatid cysts, the intermediate form of E. granulosus, were detected in elk (Cervus elaphus), mule deer (Odocoileus hemionus), and a mountain goat (Oreamnos americanus). In Montana, USA, hydatid cysts were detected in elk. To our knowledge, this is the first report of adult E. granulosus in Idaho, USA, or Montana, USA. It is unknown whether the parasite was introduced into Idaho, USA, and southwestern Montana, USA, with the importation of wolves from Alberta, Canada, or British Columbia, Canada, into Yellowstone National Park, Wyoming, USA, and central Idaho, USA, in 1995 and 1996, or whether the parasite has always been present in other carnivore hosts, and wolves became a new definitive host. Based on our results, the parasite is now well established in wolves in these states and is documented in elk, mule deer, and a mountain goat as intermediate hosts.

Antiproliferative and antimicrobial activity of traditional Kombucha and Satureja montana L. Kombucha.

Science.gov (United States)

Cetojevic-Simin, D D; Bogdanovic, G M; Cvetkovic, D D; Velicanski, A S

2008-01-01

To carry out a preliminary investigation of the biological activity of Kombucha beverages from Camellia sinensis L. (black tea) and Satureja montana L. (winter savory tea), that have consuming acidity. Cell growth effect was measured by sulforhodamine B colorimetric assay on HeLa (cervix epithelioid carcinoma), HT-29 (colon adenocarcinoma), and MCF-7 (breast adenocarcinoma). Antimicrobial activity to bacteria, yeasts and moulds was determined by agar-well diffusion method. Consuming Kombuchas had the most expressive antimicrobial activity against all investigated bacteria, except Sarcina lutea, while unfermented tea samples had no activity. Traditional Kombucha showed higher activity against Staphylococcus aureus and Escherichia coli than acetic acid, while both neutralized Kombuchas had bacteriostatic activity on Salmonella enteritidis. Examined Kombuchas did not stimulate cell proliferation of the investigated cell lines. Antiproliferative activity of winter savory tea Kombucha was comparable to that of traditional Kombucha made from black tea. Furthermore, in HeLa cell line Satureja montana L. Kombucha induced cell growth inhibition by 20% (IC20) at lower concentration compared to the activity of water extract of Satureja montana L. obtained in our previous research. Presence of more active antiproliferative component(s) in Satureja montana L. Kombucha compared to Satureja montana L. water extract and antimicrobial component(s) other than acetic acid in both Kombuchas is suggested.

State of Montana ITS/CVO business plan : intelligent transportation system commercial vehicle operations

Science.gov (United States)

1998-01-01

This plans purpose is to encourage coordinated, efficient and safe commercial vehicle operations throughout Montana, and to promote inter-agency and regional cooperation as ITS/CVO projects are developed and deployed. The Plan discusses Montana...

Genetic divergence of common bean cultivars.

Science.gov (United States)

Veloso, J S; Silva, W; Pinheiro, L R; Dos Santos, J B; Fonseca, N S; Euzebio, M P

2015-09-22

The aim of this study was to evaluate genetic divergence in the 'Carioca' (beige with brown stripes) common bean cultivar used by different institutions and in 16 other common bean cultivars used in the Rede Cooperativa de Pesquisa de Feijão (Cooperative Network of Common Bean Research), by using simple sequence repeats associated with agronomic traits that are highly distributed in the common bean genome. We evaluated 22 polymorphic loci using bulks containing DNA from 30 plants. There was genetic divergence among the Carioca cultivar provided by the institutions. Nevertheless, there was lower divergence among them than among the other cultivars. The cultivar used by Instituto Agronômico do Paraná was the most divergent in relation to the Carioca samples. The least divergence was observed among the samples used by Universidade Federal de Lavras and by Embrapa Arroz e Feijão. Of all the cultivars, 'CNFP 10104' and 'BRSMG Realce' showed the greatest dissimilarity. The cultivars were separated in two groups of greatest similarity using the Structure software. Genetic variation among cultivars was greater than the variation within or between the groups formed. This fact, together with the high estimate of heterozygosity observed and the genetic divergence of the samples of the Carioca cultivar in relation to the original provided by Instituto Agronômico de Campinas, indicates a mixture of cultivars. The high divergence among cultivars provides potential for the utilization of this genetic variability in plant breeding.

Determining the Pollinizer for Pecan Cultivars

Directory of Open Access Journals (Sweden)

Fereidoon Ajamgard

2017-05-01

Full Text Available This study was conducted to determine the best pollinizer for five selected pecan cultivars in southwest of Iran at Safiabad Agricultural Research Center in 2014-2015. The cultivars included: 'GraTex', '10J', 'Wichita 6J', 'GraKing', 'Choctaw' as pollinated cultivars (♀ and 'GraTex', 'Peruque', 'Comanche 4M', '10J', 'Wichita 6J', 'Mohawk', 'Mahan', 'Stuart 2J', '3J', 'Stuart 4J', 'GraKing', 'Choctaw', 'Apache', '6M', 'Wichita 7J' and 'Comanche 5M.' as pollinizer cultivars (♂. In the first step, a pollination chart of cultivars was determined in two years. The pollination chart of cultivars showed that all the cultivars investigated during this study were dichogamous and also protogynous except for the 'Peruque'. ‘GraKing’ had the longest duration of shedding pollen. Pollination chart showed that 'Peruque', ‘GraKing’, and 'Stuart 2J' had flowering overlap with the selected cultivars. Pollen germination test showed that the germination ability was different among the cultivars. It was 45% for 'GraKing' and 35% for 'Peruque', which were both recommended as pollinizers in this study. '6M', 'GraTex' and 'Stuart 4J' cultivars had the highest pollen germination percentage of 65%, 60% and 60%, respectively. The results of controlled pollinationtest showed that different pollen sources had no significant effect on nuts per cluster but self-pollinated all of the cultivars significantly reduced fruit set in first and second years. Based on the present research, pollination in pecan orchard was necessary for adequate yield. Also, 'Peruque', 'GraKing' and 'Stuart 2J' were the best pollinizers for five selected cultivars in southwest of Iran.

Montana Advanced Biofuels Great Falls Approval

Science.gov (United States)

This November 20, 2015 letter from EPA approves the petition from Montana Advanced Biofuels, LLC, Great Falls facility, regarding ethanol produced through a dry mill process, qualifying under the Clean Air Act for advanced biofuel (D-code 5) and renewable

Montana University System Fact Book.

Science.gov (United States)

Montana Univ. System, Helena. Office of the Commissioner of Higher Education.

This report contains numerous figures and tables providing data about the Montana University System. The report is divided into 11 sections, with some preceded by a brief text summary, followed by data tables and figures. Sections cover: (1) total funds, (2) state appropriated funds, (3) funding sources, (4) enrollment, (5) employment, (6) state…

Variations in cadmium accumulation among Chinese cabbage cultivars and screening for Cd-safe cultivars

International Nuclear Information System (INIS)

Liu Weitao; Zhou Qixing; An Jing; Sun Yuebing; Liu Rui

2010-01-01

Variations in cadmium accumulation and translocation among 40 Chinese cabbage cultivars were studied to identify and screen out Cd-safe cultivars (CSCs), i.e. cultivars with low enough accumulation of Cd in their edible parts even when grown in contaminated soils. It was observed in the pot-culture experiment that there was a significant difference (p < 0.05) in shoot Cd concentrations under three Cd treatments (1.0, 2.5 and 5.0 mg/kg), with corresponding average values 0.88, 4.45 and 7.76 mg/kg, respectively. Shoot Cd concentrations in 16 cabbage cultivars were lower than 0.50 mg/kg. The translocation factors (TFs) and the extraction factors (EFs) in five cabbage cultivars were lower than 1.0 in the pot-culture experiment. The field-culture experiment further validated that New Beijing 3 and Fengyuanxin 3 could be considered as CSCs. In particular, the two cultivars can be cultivated in low to moderate Cd-contaminated soils (Cd concentration <1.25 mg/kg) to minimize the Cd accumulation in the food.

sativa L.) Cultivars

African Journals Online (AJOL)

Abstract. Ten rice cultivars from the International Rice Germplasm Centre originating from Bangladesh were analysedfor the~r genetics of resistance to bacterial blight. The test cultivars were selected on the basis of their high level ofresistance to races IV & VI ofXanthomonas oryzae pv. oryzae. The mode ofinheri- tance was ...

Competitividade de cultivares de arroz irrigado com cultivar simuladora de arroz-vermelho

OpenAIRE

Balbinot Junior,Alvadi Antonio; Fleck,Nilson Gilberto; Menezes,Valmir Gaedke; Agostinetto,Dirceu

2003-01-01

Características morfológicas e fisiológicas de plantas cultivadas podem afetar sua habilidade competitiva com plantas daninhas. Este trabalho objetivou investigar a competitividade de cultivares de arroz irrigado (Oryza sativa L.) com cultivar simuladora de arroz-vermelho. Investigou-se na safra 2000/2001 o comportamento de oito genótipos de arroz, cultivados na presença ou ausência da cultivar de arroz EEA 406, que simulou infestação de arroz-vermelho. Aos 45 e aos 60 dias após a semeadura, ...

Developing a Climate Change Boundary Organization: the Montana Adaptation Knowledge Exchange

Science.gov (United States)

Whitlock, C. L.; Brooks, S.; Armstrong, T.; Bryan, B.

2017-12-01

States, like Montana, with small populations and large areas, are challenged by a need to offer timely and relevant climate-science information that addresses diverse and widely dispersed stakeholder groups. In Montana, filling the gap between science and practice has motivated the first Montana Climate Assessment (MCA), released September 2017 with a focus on climate impacts on the agriculture, water and forestry sectors. The MCA is an outcome of a science-stakeholder partnership that has identified critical climate-change information and knowledge gaps for the state through listening sessions and questionnaires. From the initial feedback, it became clear that stakeholder groups were deeply concerned about the challenges posed by rising temperatures and wanted to know how recent and projected warming will affect Montana's natural and managed resources. As part of the next phase of the MCA project, we are now creating the Montana Adaptation Knowledge Exchange (MAKE), a "boundary organization" as described by the National Academy of Sciences. MAKE moves beyond information sharing by bringing scientists and practitioners together to seek solutions related to climate-change adaptation and other pressing environmental and socio-economic concerns. Through a collaborative partnership that involves Montana universities, state and federal agencies, businesses and non-governmental organizations, MAKE is designed to communicate current research findings and support revision and expansion of state-of-the-knowledge assessments like the MCA. Stakeholder partners will provide guidance to the science community to help prioritize research directions and activities of high importance. Significant, but often technical, scientific results will be translated and delivered to stakeholder groups through a variety of print, web, and mobile products. MAKE will support an extensive online database, host an online portal, gather a network of experts in respective fields, and maintain a

75 FR 30850 - Final Supplementary Rules for Camping on Undeveloped Public Lands in Montana, North Dakota, and...

Science.gov (United States)

2010-06-02

... Supplementary Rules for Camping on Undeveloped Public Lands in Montana, North Dakota, and South Dakota AGENCY... personal property on undeveloped public lands managed by the BLM in Montana, North Dakota, and South Dakota... public lands throughout Montana, North Dakota, and South Dakota. These final supplementary rules will...

Evaluation of the Montana Department of Transportation's research project solicitation, prioritization, and selection process

Science.gov (United States)

2008-05-01

The Montana Department of Transportation (MDT) contracted the Bureau of Business and Economic Research at the University of Montana Missoula to conduct research to determine how other states solicit, prioritize, and select research problem statem...

75 FR 61366 - Montana Regulatory Program

Science.gov (United States)

2010-10-05

... and SMCRA, as amended, and to improve operational efficiency. This document gives the times and locations that the Montana program and proposed amendment to that program are available for your inspection... may review a copy of the amendment during regular business hours at the following locations: Jeffrey...

Made in Montana: Entrepreneurial Home Economics.

Science.gov (United States)

Goetting, Marsha A.; Muggli, Gayle Y.

1988-01-01

Reports results from a survey of 13 Montana home economists who each started a small business. Information is included on types of businesses the women had started, income, personal characteristics, reasons for starting a business, its impact on family concerns, marketing, obstacles to success, and resources. (CH)

NASA Education Activity Training (NEAT): Professional Development for Montana K-12 Teachers

Science.gov (United States)

Williamson, Kathryn; McKenzie, D.; Des Jardins, A.; Key, J.; Kanode, C.; Willoughby, S.

2012-05-01

Piloted during the 2011-2012 academic year, the NASA Education Activity Training (NEAT) teacher workshop program has introduced five solar astronomy and space weather activities to over forty Montana K-12 teachers. Because many Montana schools are geographically isolated (40% of Montana students live more than 50 miles from a city) and/or serve traditionally underrepresented groups (primarily Native Americans), professional development for teachers can be costly and time consuming. However, with funding shared by the Atmospheric Imaging Assembly EPO team and the Montana Space Grant Consortium, graduate student specialists are able to host the two-hour NEAT workshops on-site at the schools free of charge, and participating teachers earn two continuing education credits. Leveraging the existing catalogue of research-based NASA activities, the featured NEAT activities were chosen for their ease-of-use and applicability to Montana science standards. These include three advanced activities for older students, such as a paper plate activity for the June 5th, 2012 Transit of Venus, Kinesthetic Astronomy, and the Herschel Infrared experiment, along with two simpler activities for the younger students, such as Solar Cookies and the Electromagnetic War card game. Feedback surveys show that NEAT workshop participants were interested and engaged in the activities and planned on using the activities in their classrooms. With such positive responses, the NEAT program has been a huge success and can serve as a model for other institutions looking to increase their space public outreach and education.

Solid-stemmed spring wheat cultivars give better androgenic response than hollow-stemmed cultivars in anther culture.

Science.gov (United States)

Weigt, Dorota; Kiel, Angelika; Nawracała, Jerzy; Pluta, Mateusz; Łacka, Agnieszka

2016-01-01

Solid-stemmed spring wheat cultivars ( Triticum aestivum L.) are resistant to the stem sawfly ( Cephus cinctus Nort.) and lodging. Anthers of 24 spring wheat cultivars with varying content of pith in the stem were used in the experiment. All were classified into three groups: solid, medium-solid and hollow stems. There was considerable influence of the cultivar on callus formation and green plant regeneration. The highest efficiency of green plant regeneration (24%) was observed for the solid-stemmed AC Abbey cultivar. There was no regeneration from the explants of four cultivars: CLTR 7027, Alentejano, Marquis and Bombona. Principal component analysis showed no differences between the cases under observation (callus induction and green plant regeneration) in their response to pre-treatment temperatures (4 and 8°C). The examination of the effects of various auxin types in the induction medium on callus formation and green plant regeneration revealed that the strongest stimulation of these processes was observed in the C17 medium with 2,4-D and dicamba. The efficiency of callus formation and green plant regeneration was greater in solid-stemmed cultivars than in hollow-stemmed cultivars.

76 FR 64045 - Montana Regulatory Program

Science.gov (United States)

2011-10-17

... operational efficiency. This document gives the times and locations that the Montana program and proposed... program amendment is available for you to read at the locations listed above under ADDRESSES. III. Public... under FOR FURTHER INFORMATION CONTACT. We will arrange the location and time of the hearing with those...

76 FR 76111 - Montana Regulatory Program

Science.gov (United States)

2011-12-06

... efficiency. This document gives the times and locations that the Montana program and proposed amendment to... is available for you to read at the locations listed above under ADDRESSES. III. Public Comment... CONTACT. We will arrange the location and time of the hearing with those persons requesting the hearing...

THE USE OF EXPRESSIVE SPEECH ACTS IN HANNAH MONTANA SESSION 1

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Nur Vita Handayani

2015-07-01

Full Text Available This study aims to describe kinds and forms of expressive speech act in Hannah Montana Session 1. It belongs to descriptive qualitative method. The research object was expressive speech act. The data source was utterances which contain expressive speech acts in the film Hannah Montana Session 1. The researcher used observation method and noting technique in collecting the data. In analyzing the data, descriptive qualitative method was used. The research findings show that there are ten kinds of expressive speech act found in Hannah Montana Session 1, namely expressing apology, expressing thanks, expressing sympathy, expressing attitudes, expressing greeting, expressing wishes, expressing joy, expressing pain, expressing likes, and expressing dislikes. The forms of expressive speech act are direct literal expressive speech act, direct non-literal expressive speech act, indirect literal expressive speech act, and indirect non-literal expressive speech act.

78 FR 8102 - Kootenai National Forest; Buckhorn Planning Subunit; Lincoln County, Montana; Environmental...

Science.gov (United States)

2013-02-05

... National Forest, Lincoln County, Montana, and north of Troy, Montana. DATES: Comments concerning the scope... Hwy 2, Troy, MT 59935. Comments may also be sent via email to comments-northern-kootenai-three-rivers..., Project Team Leader, Three Rivers Ranger District, 12858 US Hwy 2, Troy, MT 59935. Phone: (406) 295-4693...

Evaluation of antioxidant and cytoprotective activities of Arnica montana L. and Artemisia absinthium L. ethanolic extracts

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Craciunescu Oana

2012-09-01

Full Text Available Abstract Background Arnica montana L. and Artemisia absinthium L. (Asteraceae are medicinal plants native to temperate regions of Europe, including Romania, traditionally used for treatment of skin wounds, bruises and contusions. In the present study, A. montana and A. absinthium ethanolic extracts were evaluated for their chemical composition, antioxidant activity and protective effect against H2O2-induced oxidative stress in a mouse fibroblast-like NCTC cell line. Results A. absinthium extract showed a higher antioxidant capacity than A. montana extract as Trolox equivalent antioxidant capacity, Oxygen radical absorbance capacity and 2,2-diphenyl-1-picrylhydrazyl free radical-scavenging activity, in correlation with its flavonoids and phenolic acids content. Both plant extracts had significant effects on the growth of NCTC cells in the range of 10–100 mg/L A. montana and 10–500 mg/L A. absinthium. They also protected fibroblast cells against hydrogen peroxide-induced oxidative damage, at the same doses. The best protection was observed in cell pre-treatment with 10 mg/L A. montana and 10–300 mg/L A. absinthium, respectively, as determined by Neutral red and lactate dehydrogenase assays. In addition, cell pre-treatment with plant extracts, at these concentrations, prevented morphological changes induced by hydrogen peroxide. Flow-cytometry analysis showed that pre-treatment with A. montana and A. absinthium extracts restored the proportion of cells in each phase of the cell cycle. Conclusions A. montana and A. absinthium extracts, rich in flavonoids and phenolic acids, showed a good antioxidant activity and cytoprotective effect against oxidative damage in fibroblast-like cells. These results provide scientific support for the traditional use of A. montana and A. absinthium in treatment of skin disorders.

Individual- and population-level effects of Odocoileus virginianus herbivory on the rare forest herb Scutellaria montana

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Andrea R. Benson

2014-08-01

Full Text Available Odocoileus virginianus  (white-tailed deer grazing can impact rare plant species dramatically given their risk for local extirpation and extinction. To determine if O. virginianus management could aid conservation of federally threatened Scutellaria montana  (large-flowered skullcap, we conducted an exclosure experiment across a large occurrence of this rare species in Catoosa County, Georgia, USA. We aimed to: (1 quantify the effects of O. virginianus  grazing on S. montana  individuals, and (2 evaluate the potential of O. virginianus  to influence S. montana  populations. A lesser percentage of S. montana  individuals protected from O. virginianus  were grazed than plants accessible to grazers and additional protection from smaller grazers did not reduce grazing, suggesting that O. virginianus  primarily do graze S. montana. But grazing did not significantly influence S. montana  individuals as evidenced by changes in stem height or the number of leaves per plant assessed during two single growing seasons or across those growing seasons. At the population-level, grazing impacts were buffered by a lack of grazer preferences for specific plant life stages. Although mostly not significant, our findings are biologically interesting given the numerous ecological concerns associated with O. virginianus abundance, including their demonstrated and proposed impact on rare plants.

Pessegueiro: cultivar BRS kampai

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Maria do Carmo Bassols Raseira

2010-12-01

Full Text Available RESUMO O programa de Melhoramento Genético de Pessegueiros da Embrapa Clima Temperado tem, entre seus objetivos, a obtenção de cultivares produtoras de frutas para consumo in natura, com características que satisfaçam às exigências dos consumidores. Alguns dos grandes centros consumidores, como é o caso de São Paulo e Curitiba, preferem pêssegos de polpa branca e sabor doce. A cultivar BRS Kampai, obtida de um cruzamento entre 'Chimarrita' e 'Flordaprince', alia a baixa necessidade em frio, o que é uma vantagem em regiões subtropicais, à boa aparência, com sabor superior a qualquer um dos parentais. A colheita dos frutos desta cultivar inicia-se geralmente, em meados de novembro, em Pelotas-RS (em Atibaia, São Paulo, inicia-se na segunda quinzena de outubro, poucos dias antes das cultivares Rubimel (polpa amarela e Premier (polpa branca, sendo ótima substituta para esta última.

RADISH CULTIVARS BRED AT VNIISSOK AND THEIR USE

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M. I. Fedorova

2016-01-01

Full Text Available On the base of comparative assessment and average data estimation from 2010 to 2015, the characteristics of 11 cultivars bred at VNIISSOK were described regarding yield capacity and its components, variation, interdependencies at two sowing terms winter,spring time, direction of selection and cultivar uses at cultivar maintaining breeding program. Cultivar 'Koroleva Margo' is rather used in breeding program for yield capacity and taste qualities. Cultivar 'Sonata' is a source of such features as early maturity, valuable biochemical content and low nitrate accumulation. Cultivar 'Sofit' is known to bear early maturity and simultaneous seed maturation. 'Ariya' is a source of cylindrical root shape and early maturation. Cultivar 'Teplichnyi Gribovskyi' is used in breeding program for early maturation and simultaneous seed maturation. Cultivar 'Feya' bearsresistance to bolting and valuable biochemical substances. Cultivar 'Variant' has such features as root density, ability to grow under low lighting, short-term storability.  Purple-red with white tips is a newmade cultivar 'Mavr' suitable for breeding program for valuable biochemical content, unusual root color, also bearing male sterile forms (MS for heterosis hybrid breeding. Out of all cultivars regarded, 'Mokhovskiy' is only a genetic source to breed radish forms with edible leaves. The positive weak dependence was revealed between cultivar biochemical characteristics, root weight, dry matter  content, and nitrate content; whereas the positive middle dependence is revealed with sugar contents and negative dependence with ascorbic acid content. According to  iochemical characteristics, the best cultivar population as 'Ariya', 'Sonata' (ascorbic acid; Mavr, Sonata, Variant (dry matter, sugars have been chosen. Cultivars 'Koroleva Margo', Pheya, Sonata, Sophit, Mokhovskiy are the initial breeding accessions for selection of new cultivar population, MS and MF lines needed for heterosis.

Building Points - Montana Structures/Addresses Framework - Web Service

Data.gov (United States)

NSGIC State | GIS Inventory — Map service for the Montana Structures MSDI Framework. The service will only display at scales of 1:100,000 or larger. Structures are grouped into general categories...

Yield and quality of strawberry cultivars Produtividade e qualidade de cultivares de morangueiro

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Luis Eduardo C Antunes

2010-06-01

Full Text Available The strawberry cultivation is an important economic activity in the Rio Grande do Sul State, Brazil, however the number of offered cultivars to the growers is reduced. The yield and quality of strawberry (Fragaria x ananassa Duch. cultivars Camarosa, Galexia, Earlibrite, Festival, Plarionfre and Sabrosa was evaluated under the climatic conditions of Pelotas, Rio Grande do Sul State. We determined the number, mass, total soluble solids (TSS ºBrix, total titratable acidity (TTA, antocianin level and fresh fruits produced in an experimental unit. We also determined the production of fruits per hectare and per plant. The statistical design used in the experiment was of completely randomized blocks with 6 treatments (cultivars and 4 replicates where the experimental unit was composed of 8 plants. The harvest began in the first half of August, extending to the second half of December, totalling 20 weeks. Plarionfre, Earlibrite and Festival cultivars showed higher production from the first half of October until the end of the first half of November. Camarosa reached higher productivity, mass of plants and fruit weight. There were no differences between the evaluated cultivars in the levels of TSS, antocianin, ATT and pH during the period of evaluation.No estado do Rio Grande do Sul o cultivo do morangueiro é uma atividade econômica importante, entretanto o número de cultivares disponíveis no mercado é bastante reduzido. Assim buscou-se com este trabalho avaliar a produtividade e a qualidade dos frutos de cultivares de morangueiro (Fragaria x ananassa Duch., Camarosa, Galexia, Earlibrite, Festival, Plarionfre e Sabrosa, cultivados nas condições climáticas e de solo do município de Pelotas, RS. Determinaram-se, o número, massa fresca e teor de sólidos solúveis totais (SST (expresso em ºBrix, acidez total titulável (ATT (expresso em % de ácido cítrico e teor de antocianinas, dos frutos produzidos por unidade experimental. Determinou

Pathogenic Streptomyces spp. abundance affected by potato cultivars.

Science.gov (United States)

Nahar, Kamrun; Goyer, Claudia; Zebarth, Bernie J; Burton, David L; Whitney, Sean

2018-04-16

Potato cultivars vary in their tolerance to common scab (CS), however how they affect CS-causing Streptomyces spp. populations over time is poorly understood. This study investigated the effects of potato cultivar on pathogenic Streptomyces spp. abundance, measured using quantitative PCR, in three spatial locations in a CS-infested field: 1) soil close to the plant (SCP); 2) rhizosphere (RS); and 3) geocaulosphere (GS) soils. Two tolerant (Gold Rush, Hindenburg) and two susceptible cultivars (Green Mountain, Agria) were tested. The abundance of pathogenic Streptomyces spp. significantly increased in late August compared with other dates in RS of susceptible cultivars in both years. Abundance of pathogenic Streptomyces spp., when averaged over locations and time, was significantly greater in susceptible cultivars compared with tolerant cultivars in 2014. Principal coordinates analysis showed that SCP and RS soil properties (pH, organic carbon and nitrogen concentrations) explained 68% and 76% of total variation in Streptomyces spp. abundance among cultivars in 2013, respectively, suggesting that cultivars influenced CS pathogen growth conditions. The results suggested that the genetic background of potato cultivars influenced the abundance of pathogenic Streptomyces spp., with 5 to 6 times more abundant Streptomyces spp. in RS of susceptible cultivars compared with tolerant cultivars, which would result in substantially more inoculum left in the field after harvest.  .

When reintroductions are augmentations: the genetic legacy of the fisher (Martes pennanti) in Montana

Science.gov (United States)

Ray S. Vinkey; Michael K. Schwartz; Kevin S. McKelvey; Kerry R. Foresman; Kristine L. Pilgrim; Brian J. Giddings; Eric C. Lofroth

2006-01-01

Fishers (Martes pennanti) were purportedly extirpated from Montana by 1930 and extant populations are assumed to be descended from translocated fishers. To determine the lineage of fisher populations, we sequenced 2 regions of the mitochondrial DNA genome from 207 tissue samples from British Columbia, Minnesota, Wisconsin, and Montana. In...

MGS Esmeralda: new large seed mungbean cultivar MGS Esmeralda: nova cultivar de mungo-verde de sementes grandes

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Rogério Faria Vieira

2008-06-01

Full Text Available Mungbean cultivar MGS Esmeralda was developed by Asian Vegetable Research and Development Center (Shanhua, Taiwan, as a result of crossing between the lines VC 1973A and VC 2768A. In ten trials conducted in the State of Minas Gerais, Brazil, it produced 13.5% more grains than 'Ouro Verde MG-2' (control cultivar, and its highest yield was 2,550 kg ha-1. The cultivar MGS Esmeralda is more susceptible to lodging, and its pods mature more uniformly than Ouro Verde MG-2 pods. One hundred-seed mass of 'MGS Esmeralda' ranged between 5.5 and 6.8 g. Both cultivars are susceptible to powdery mildew and cercospora leaf spot.A cultivar de mungo-verde MGS Esmeralda foi criada pelo Asian Vegetable Research and Development Center, localizado em Shanhua, Formosa. Ela é resultado do cruzamento entre as linhagens VC 1973A e VC 2768A. Em dez ensaios conduzidos em Minas Gerais, ela produziu 13,5% mais grãos do que a cultivar Ouro Verde MG-2 (testemunha, e sua produtividade mais alta foi 2.550 kg ha-1. A cultivar MGS Esmeralda é mais suscetível ao acamamento do que a Ouro Verde MG-2, mas suas vagens amadurecem mais uniformemente. A massa de 100 grãos da 'MGS Esmeralda' varia de 5,5 a 6,8 g. Ambas as cultivares são suscetíveis ao oídio e à cercosporiose.

Montana Curriculum Guidelines for Distributive Education. Revised.

Science.gov (United States)

Harris, Ron, Ed.

These distributive education curriculum guidelines are intended to provide Montana teachers with teaching information for 11 units. Units cover introduction to marketing and distributive education, human relations and communications, operations and control, processes involved in buying for resale, merchandise handling, sales promotion, sales and…

Cadmium accumulation in different rice cultivars and screening for pollution-safe cultivars of rice.

Science.gov (United States)

Yu, Hui; Wang, Junli; Fang, Wei; Yuan, Jiangang; Yang, Zhongyi

2006-11-01

Large areas of contaminated land are being used for agricultural production in some countries due to the high demand for food. To minimize the influx of pollutants to the human food chain through consumption of agricultural products, we propose the concept of pollution-safe cultivars (PSCs), i.e. cultivars whose edible parts accumulate a specific pollutant at a level low enough for safe consumption, even when grown in contaminated soil. We tested the feasibility of the PSC concept by growing 43 cultivars of paddy rice (Oryza sativa L., including 20 normal and 23 hybrid cultivars) under a high (75.69-77.55 mg kg(-1)) and a low (1.75-1.85 mg kg(-1)) cadmium (Cd) exposure. These pot experiments took place in the spring and summer of 2004. At the low level of Cd exposure, 30 out of the 43 tested cultivars were found to be Cd-PSCs. Grain Cd concentrations were highly correlated (price grain is genotype-dependent and that the selection of PSCs is possible, at least at a certain level of soil contamination. No Cd-PSCs were found under the high level of Cd exposure. Yield was enhanced in some cultivars and depressed in others in response to elevated soil Cd, indicating that farmers cannot rely on yield depression as an indicator of toxicity of the grains. It is therefore important and feasible to screen for PSCs and to establish PSC breeding programs to effectively and efficiently reduce the risk of human exposure to soil pollutants, such as Cd, through crop consumption.

Esterase polymorphism marking cultivars of Manihot esculenta, Crantz

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Adriana Gazoli Resende

2004-07-01

Full Text Available Esterase isozymes were used to detected substrate-preference polymorphism in twenty cultivars of Manihot esculenta, and to show cultivar-specific variation of this species. A relatively complex extraction solution of proteins from leaves was needed to show a larger number of esterase isozymes. Similarity between cultivars from six groups ranged from 51 to 96%. The cultivars identified by the same name seemed to be biochemically different regarding esterase isozymes. Esterase isozyme electrophoretic patterns could, therefore, be used to discriminate the cultivars identified by the same name, and to monitor the vegetative propagation of cultivars maintained in the germplasm collection. In breeding strategies, isoesterase analysis could be used to avoid intercrossing between the similar genotypes.Isoenzimas esterases foram usadas no presente estudo, para detectar polimorfismos específicos para diferentes substratos em vinte cultivares de Manihot esculenta, e para mostrar variações específicas de cultivares nesta espécie. Os diferentes cultivares de M. esculenta tem sido mantidos na coleção de germoplasma do Departamento de Agronomia da Universidade Estadual de Maringá (Maringá, PR, e foram provenientes de cultivares tradicionais coletados nas regiões sudoeste e noroeste do Estado. Foi necessário a utilização de uma solução de extração de proteínas relativamente mais complexa, para evidenciar um maior número de isoenzimas esterases. A similaridade entre os cultivares variou de 51 a 96%. Cultivares identificados pelo mesmo nome parecem ser bioquimicamente diferentes para as isoenzimas esterases. Os padrões eletroforéticos das isoesterases podem, portanto, serem usados para discriminar os cultivares que são identificados pelo mesmo nome, e para monitorar a propagação vegetativa dos cultivares mantidos na coleção de germoplasma. A análise das isoesterases pode também ser usada para evitar cruzamentos entre genótipos mais

75 FR 3993 - Approval and Promulgation of Air Quality Implementation Plans; Montana; Revisions to the...

Science.gov (United States)

2010-01-26

... include minor editorial and grammatical changes, updates to the citations and references to federal and... otherwise. (ii) The words EPA, we, us or our mean or refer to the United States Environmental Protection... Promulgation of Air Quality Implementation Plans; Montana; Revisions to the Administrative Rules of Montana...

Apple cultivars resistant to scab (Venturia inaequalis (Cke. Aderh. Part II. Winterhardiness of apple cultivars

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Zbigniew Borecki

2013-12-01

Full Text Available The severe winter which occurred in Poland in 1986-1987 damaged the most part of scab resistant apple cultivars and selected apple hybrids. Cold hardiness studied in 1987 and 1988 showed significant differences in degree of frost injury on stem, branches, twigs and buds of apple trees. Two scab-resistance cultivars, namely Florina and Sir Prize, as well as two check culuvars, Idared and Golden Delicious, were killed by frost. Strong damages were noted in cultivars: Prima, Primula, and Priam. Lower susceptibility showed: Jonafree, Gavin, Liberty Sister and three hybrids selected from crosses of Bankroft with scab-resistant Primula. Relatively frost resistant was Novamac and three hybrids of U-breeding line: U-1101 and U-50, originated from crosses of polish culrivar Fantazja (McIntosh x Linda with Primula, Highest resistance to frost showed cultivars: Freedom. Liberty. new polish cultivar Witos (Fantazja x Primula and three hybrids: U-337, U-237 and U-1098. During the 1987 and 1988 seasons severe infection of apple trees by numerous fungi was noted. Twelve species of isolated fungi were identified as pathogens of apple trees bark and wood.

Sensitivity of tomato cultivars to sulfur dioxide

Energy Technology Data Exchange (ETDEWEB)

Howe, T.K.; Woltz, S.S.

1982-04-01

The sensitivity of 26 cultivars of tomato (Lycopersicon esculentum Mill.) were compared at 2 concentrations of SO/sub 2/in specially designed exposure greenhouses. Cultivars studied included fresh market, processing, and specialty types. Insensitive and sensitive cultivars were identified by assessment of acute SO/sub 2/-induced foliar necrosis. Cultivars found to be insensitive to SO/sub 2/ included: 'Ace', 'Bonanza', 'Heinz 1350', 'Tarquinia Tondino', and 'VF 145-B 7879'. Cultivars found to be sensitive to SO/sub 2/ included: 'Bellarina', 'Chico III', 'Flora-Dade', 'Red Cherry Large' 'Sub-Arctic Delight', and 'Vetomold. 10 figures, 1 table.

UEL 7: nova cultivar de Dendrobium UEL 7: a new Dendrobium cultivar

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Ricardo Tadeu de Faria

2011-09-01

Full Text Available UEL 7 é uma cultivar de Dendrobium nobile desenvolvida no Departamento de Agronomia da Universidade Estadual de Londrina resultante do cruzamento das plantas matrizes D3 x D8 e selecionada pela coloração das flores amarelas e com largura e comprimento semelhantes (7,0 cm, formando praticamente um círculo. As plantas foram polinizadas artificialmente, e as sementes semeadas em meio de cultura in vitro. A cultivar apresenta flores de coloração amarela, labelo com o centro marrom escuro e o pseudobulbo apresenta em mé dia 11 flores. As flores têm durabilidade de aproximadamente 30 dias.UEL 7 is a Dendrobium nobile's cultivar developed at The Department of Agronomy of Universidade Estadual de Londrina and is the result of the crossing between D3 x D8 and selected for its yellow flowers and format with similar width and length (7.0 cm, almost forming a circle. The plants were pollinated artificially, and the seeds sowed in growth media in vitro. The cultivar presents flowers of yellow coloration, labelo with the center dark brown color and the pseudobulb presents 11 flowers on average. The flowers durability is about 30 days.

Solid-stemmed spring wheat cultivars give better androgenic response than hollow-stemmed cultivars in anther culture

OpenAIRE

Weigt, Dorota; Kiel, Angelika; Nawraca?a, Jerzy; Pluta, Mateusz; ?acka, Agnieszka

2016-01-01

Solid-stemmed spring wheat cultivars (Triticum aestivum L.) are resistant to the stem sawfly (Cephus cinctus Nort.) and lodging. Anthers of 24 spring wheat cultivars with varying content of pith in the stem were used in the experiment. All were classified into three groups: solid, medium?solid and hollow stems. There was considerable influence of the cultivar on callus formation and green plant regeneration. The highest efficiency of green plant regeneration (24%) was observed for the solid-s...

Adaptation of cotton cultivars | Wondimu | African Crop Science ...

African Journals Online (AJOL)

For each cultivar a linear regression of yield on the mean yield of all cultivars for each year was computed to measure cultivar adaptation. The cultivars with the highest mean yield exhibited a similar degree of adaptation to different environments with regression coefficient close to 1.0. For example, the breeding lines, Acala ...

SPANISH PEAKS PRIMITIVE AREA, MONTANA.

Science.gov (United States)

Calkins, James A.; Pattee, Eldon C.

1984-01-01

A mineral survey of the Spanish Peaks Primitive Area, Montana, disclosed a small low-grade deposit of demonstrated chromite and asbestos resources. The chances for discovery of additional chrome resources are uncertain and the area has little promise for the occurrence of other mineral or energy resources. A reevaluation, sampling at depth, and testing for possible extensions of the Table Mountain asbestos and chromium deposit should be undertaken in the light of recent interpretations regarding its geologic setting.

CULTIVAR RELEASE - BRSMG União: common bean cultivar with jalo grain for the state of Minas Gerais

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Magno Antonio Patto Ramalho

2012-12-01

Full Text Available The bean cultivar BRSMG União as a new option of a bean cultivar with jalo grains for the state of Minas Gerais. The cultivar BRSMG União had an average grain yield of 9.8% above the mean of the controls (Jalo EEP 558 and BRS Radiante and was resistant to powdery-mildew.

Morphological, mechanical and antioxidant properties of Portuguese almond cultivars

DEFF Research Database (Denmark)

Oliveira, Ivo; Meyer, Anne S.; Afonso, Silvia

2018-01-01

The aim of this study was to evaluate morphological (of fruit and kernel), mechanical (namely shell rupture force) and antioxidant properties (including phenolics and flavonoid content) of five Portuguese almond cultivars, comparing them with two commercial cultivars (Glorieta and Ferragnès). Of ...... high kernel weight, low percentages of double kernels or losses during shelling and considerable higher phenolics and flavonoids content may be considered by industry during selection of almond.......). Of the analyzed traits, nut and kernel dimensions varied substantially and were used to describe cultivars. However, some traditional cultivars recorded similar (Pegarinhos), or even higher (Amendoão, Casanova and Refêgo) nut and kernel weight than commercial cultivars. Furthermore, shelling percentage...... of traditional cultivar (Bonita) was higher than commercial cultivars. Rupture force necessary to break fruits of all traditional cultivars was higher than commercial ones, and was correlated to nut weight cultivars. The phenolics, flavonoids content and antioxidants were higher for Casanova. Parameters like...

Montana Integrated Carbon to Liquids (ICTL) Demonstration Program

Energy Technology Data Exchange (ETDEWEB)

Fiato, Rocco A. [Accelergy Corporation, Houston, TX (United States); Sharma, Ramesh [Univ. of North Dakota, Grand Forks, ND (United States). Energy & Environmental Research Center (EERC); Allen, Mark [Accelergy Corporation, Houston, TX (United States). Integrated Carbon Solutions; Peyton, Brent [Montana State Univ., Bozeman, MT (United States); Macur, Richard [Montana State Univ., Bozeman, MT (United States). Dept. of Land Resources and Environmental Sciences; Cameron, Jemima [Australian Energy Company Ltd., Hovea (Australia). Australian American Energy Corporation (AAEC)

2013-12-01

Integrated carbon-to-liquids technology (ICTL) incorporates three basic processes for the conversion of a wide range of feedstocks to distillate liquid fuels: (1) Direct Microcatalytic Coal Liquefaction (MCL) is coupled with biomass liquefaction via (2) Catalytic Hydrodeoxygenation and Isomerization (CHI) of fatty acid methyl esters (FAME) or trigylceride fatty acids (TGFA) to produce liquid fuels, with process derived (3) CO₂ Capture and Utilization (CCU) via algae production and use in BioFertilizer for added terrestrial sequestration of CO₂, or as a feedstock for MCL and/or CHI. This novel approach enables synthetic fuels production while simultaneously meeting EISA 2007 Section 526 targets, minimizing land use and water consumption, and providing cost competitive fuels at current day petroleum prices. ICTL was demonstrated with Montana Crow sub-bituminous coal in MCL pilot scale operations at the Energy and Environmental Research Center at the University of North Dakota (EERC), with related pilot scale CHI studies conducted at the University of Pittsburgh Applied Research Center (PARC). Coal-Biomass to Liquid (CBTL) Fuel samples were evaluated at the US Air Force Research Labs (AFRL) in Dayton and greenhouse tests of algae based BioFertilizer conducted at Montana State University (MSU). Econometric modeling studies were also conducted on the use of algae based BioFertilizer in a wheat-camelina crop rotation cycle. We find that the combined operation is not only able to help boost crop yields, but also to provide added crop yields and associated profits from TGFA (from crop production) for use an ICTL plant feedstock. This program demonstrated the overall viability of ICTL in pilot scale operations. Related work on the Life Cycle Assessment (LCA) of a Montana project indicated that CCU could be employed very effectively to reduce the overall carbon footprint of the MCL/CHI process. Plans are currently being made to conduct larger

Avaliação de herbicidas para dois cultivares de mandioca Selectivity of herbicide alternatives for two cassava cultivars

Directory of Open Access Journals (Sweden)

D.F Biffe

2010-12-01

Full Text Available É importante avaliar a tolerância de variedade de mandioca a novas alternativas de controle químico, com o intuito de ampliar as opções disponíveis. Este trabalho teve como objetivo avaliar a seletividade de herbicidas aplicados em pré-emergência, para duas importantes variedades de mandioca cultivadas no Estado do Paraná. Os herbicidas e respectivas doses (g i.a. ha-1 avaliadas foram: diuron (400 e 800, metribuzin (360 e 720, isoxaflutole (60, atrazine (720, S-metolachlor (1.920 e as misturas ametryn + clomazone (1.350+1.900, ametryn+trifluralin (1.500+1.350, isoxaflutole+metribuzin (60+320, isoxaflutole+diuron (60+400, combinados com uso de uma testemunha dupla adjacente a cada tratamento. Os cultivares utilizados neste trabalho foram Fécula Branca e Fibra. Apenas o herbicida S-metolachlor, para ambos os cultivares, e metribuzin (360 g i.a. ha-1, para o cultivar Fibra, não provocaram injúrias. Atrazine provocou redução de estande para o cultivar Fécula Branca aos 60 DAP, mas não foi detectada redução na altura de plantas. Tanto atrazine (para os dois cultivares quanto diuron na dose de 800 g i.a. ha-1 (para o cultivar Fécula Branca afetaram a produtividade de raízes. Dessa forma, atrazine foi considerado não seletivo para ambos os cultivares, e a maior dose de diuron foi também considerada não seletiva para o cultivar Fécula Branca. Há diferenças de tolerância entre os cultivares, sendo o Fibra, de modo geral, mais tolerante aos herbicidas avaliados.It is important to evaluate the tolerance of cassava varieties under new weed chemical control alternatives. Thus, this study aimed to evaluate the selectivity of herbicides, applied at pre-emergence, for two important cassava varieties grown in the state of Paraná, Brazil. The herbicides and respective doses (g a.i. ha-1 were: diuron (400 and 800, metribuzin (360 and 720, isoxaflutole (60, atrazine (720, S-metolachlor (1,920 and mixtures ametryn+clomazone (1

Inducing Cold-Sensitivity in the Frigophilic Fly Drosophila montana by RNAi.

Directory of Open Access Journals (Sweden)

Felipe M Vigoder

Full Text Available Cold acclimation is a critical physiological adaptation for coping with seasonal cold. By increasing their cold tolerance individuals can remain active for longer at the onset of winter and can recover more quickly from a cold shock. In insects, despite many physiological studies, little is known about the genetic basis of cold acclimation. Recently, transcriptomic analyses in Drosophila virilis and D. montana revealed candidate genes for cold acclimation by identifying genes upregulated during exposure to cold. Here, we test the role of myo-inositol-1-phosphate synthase (Inos, in cold tolerance in D. montana using an RNAi approach. D. montana has a circumpolar distribution and overwinters as an adult in northern latitudes with extreme cold. We assessed cold tolerance of dsRNA knock-down flies using two metrics: chill-coma recovery time (CCRT and mortality rate after cold acclimation. Injection of dsRNAInos did not alter CCRT, either overall or in interaction with the cold treatment, however it did induced cold-specific mortality, with high levels of mortality observed in injected flies acclimated at 5°C but not at 19°C. Overall, injection with dsRNAInos induced a temperature-sensitive mortality rate of over 60% in this normally cold-tolerant species. qPCR analysis confirmed that dsRNA injection successfully reduced gene expression of Inos. Thus, our results demonstrate the involvement of Inos in increasing cold tolerance in D. montana. The potential mechanisms involved by which Inos increases cold tolerance are also discussed.

Association of Regulatory Boards of Optometry

Science.gov (United States)

... website of the Association of Regulatory Boards of Optometry (ARBO). ARBO's web site is designed to provide resources to regulatory boards of optometry throughout the world. State/Provincial/Territorial Boards of ...

75 FR 63434 - Kootenai National Forest, Lincoln County, Montana; Grizzly Vegetation and Transportation...

Science.gov (United States)

2010-10-15

... Troy, Montana. The Notice of Availability of the Draft EIS for this project was published in the... analysis is Cami Winslow, Acting District Ranger, Three Rivers Ranger District, 12385 U.S. Hwy 2, Troy, MT... northeast of Troy, Montana, within all or portions of T34N, R32W-R33W, T35N, R32W-R33W, and T36N, R32W-R33W...

Salt Tolerance of Six Switchgrass Cultivars

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Youping Sun

2018-04-01

Full Text Available Panicum virgatum L. (switchgrass cultivars (‘Alamo’, ‘Cimarron’, ‘Kanlow’, ‘NL 94C2-3’, ‘NSL 2009-1’, and ‘NSL 2009-2’ were evaluated for salt tolerance in two separate greenhouse experiments. In experiment (Expt. 1, switchgrass seedlings were irrigated with a nutrient solution at an electrical conductivity (EC of 1.2 dS·m−1 (control or a saline solution (spiked with salts at an EC of 5.0 dS·m−1 (EC 5 or 10.0 dS·m−1 (EC 10 for four weeks, once a week. Treatment EC 10 reduced the tiller number by 32% to 37% for all switchgrass cultivars except ‘Kanlow’. All switchgrass cultivars under EC 10 had a significant reduction of 50% to 63% in dry weight. In Expt. 2, switchgrass was seeded in substrates moistened with either a nutrient solution of EC 1.2 dS·m−1 (control or a saline solution of EC of 5.0, 10.0, or 20.0 dS·m−1 (EC 5, EC 10, or EC 20. Treatment EC 5 did not affect the seedling emergence, regardless of cultivar. Compared to the control, EC 10 reduced the seedling emergence of switchgrass ‘Alamo’, ‘Cimarron’, and ‘NL 94C2-3’ by 44%, 33%, and 82%, respectively. All switchgrass cultivars under EC 10 had a 46% to 88% reduction in the seedling emergence index except ‘NSL 2009-2’. No switchgrass seedlings emerged under EC 20. In summary, high salinity negatively affected switchgrass seedling emergence and growth. Dendrogram and cluster of six switchgrass cultivars indicated that ‘Alamo’ was the most tolerant cultivar, while ‘NSL 2009-2’ was the least tolerant cultivar at both seedling emergence and growth stages. A growth-stage dependent response to salinity was observed for the remaining switchgrass cultivars. ‘NSL 2009-1’ and ‘NL 94C2-3’ were more tolerant to salinity than ‘Cimarron’ and ‘Kanlow’ at the seedling emergence stage; however, ‘Kanlow’ and ‘Cimarron’ were more tolerant to salinity than ‘NSL 2009-1’ and ‘NL 94C2-3’ at the seedling growth

BRS Ana: cultivar de batata de duplo propósito BRS ANA: A dual purpose potato cultivar

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Arione da S Pereira

2010-12-01

Full Text Available O genótipo BRS Ana é uma nova cultivar de batata adequada para fritura à francesa, com potencial de processamento na forma de palitos pré-fritos congelados e de flocos, liberada em 2007. Foi desenvolvida pelo Programa de Melhoramento de Batata da Embrapa (Clima Temperado, Pelotas-RS, Transferência de Tecnologia - Escritório de Canoinhas-SC e Hortaliças, Brasília-DF, com base na aparência e rendimento de tubérculos, peso específico e qualidade de fritura. Os tubérculos têm película vermelha, levemente áspera, polpa branca, formato oval e olhos rasos. O potencial produtivo é alto. No ecossistema subtropical, apresentou maior produtividade (31,2 t ha-1 que as cultivares mais plantadas no país, quando cultivada no outono, e não diferiu na primavera. Em ecossistema tropical, plantio da seca, a cultivar BRS Ana foi tão produtiva (33,8 t ha-1 quanto as demais cultivares avaliadas. Produziu maior percentagem de tubérculos graúdos (55,6% e peso médio dos tubérculos (108,4 g que as testemunhas no outono do ecossistema subtropical. Em ambos os ecossistemas, a cultivar BRS Ana apresentou elevados valores de peso específico (1,086 e conteúdo de matéria seca (19,7%. Nos testes sensoriais mostrou-se adequada à fritura na forma de palitos, tanto no preparo doméstico, quanto na industrialização. É moderadamente suscetível à requeima (Phytophthora infestans e tem boa resistência à pinta-preta (Alternaria solani. A reação à podridão-mole (Pectobacterium sp. é similar à das cultivares mais plantadas. Apresenta baixa degenerescência de sementes por viroses, conferida pela resistência moderadamente alta ao PVY e baixa incidência do PLRV. Suscetibilidade a distúrbios de origem fisiológica nos tubérculos não tem sido observada. No ecossistema subtropical a tuberização é mais tardia na primavera, devendo portanto ser plantada mais cedo.The genotype BRS Ana is a new potato cultivar adequate for French fries, with

The University of Montana's Blue Mountain Observatory

Science.gov (United States)

Friend, D. B.

2004-12-01

The University of Montana's Department of Physics and Astronomy runs the state of Montana's only professional astronomical observatory. The Observatory, located on nearby Blue Mountain, houses a 16 inch Boller and Chivens Cassegrain reflector (purchased in 1970), in an Ash dome. The Observatory sits just below the summit ridge, at an elevation of approximately 6300 feet. Our instrumentation includes an Op-Tec SSP-5A photoelectric photometer and an SBIG ST-9E CCD camera. We have the only undergraduate astronomy major in the state (technically a physics major with an astronomy option), so our Observatory is an important component of our students' education. Students have recently carried out observing projects on the photometry of variable stars and color photometry of open clusters and OB associations. In my poster I will show some of the data collected by students in their observing projects. The Observatory is also used for public open houses during the summer months, and these have become very popular: at times we have had 300 visitors in a single night.

Monitoring biological control agents and leafy spurge populations along the Smith River in Montana, USA

Science.gov (United States)

J. Birdsall; G. Markin; T. Kalaris; J. Runyon

2013-01-01

The Smith River originates in west central Montana and flows north approximately 100 miles before joining the Missouri River. The central 60 miles of the river flows through a relatively inaccessible, forested, scenic limestone canyon famous for its trout fishing. Because of its popularity, the area was designated Montana's first and only controlled river, with...

Revitalizing Indigenous Languages, Cultures, and Histories in Montana, across the United States and around the Globe

Science.gov (United States)

Carjuzaa, Jioanna

2017-01-01

Many educators have sung the praises of Indian Education for All, Montana's constitutional mandate, and heard the successes of Montana's Indigenous language revitalization efforts which reverberate around the globe. Teaching Indigenous languages is especially, challenging since there are limited numbers of fluent speakers and scarce resources…

Distinguishing Nonpareil marketing group almond cultivars through multivariate analyses.

Science.gov (United States)

Ledbetter, Craig A; Sisterson, Mark S

2013-09-01

More than 80% of the world's almonds are grown in California with several dozen almond cultivars available commercially. To facilitate promotion and sale, almond cultivars are categorized into marketing groups based on kernel shape and appearance. Several marketing groups are recognized, with the Nonpareil Marketing Group (NMG) demanding the highest prices. Placement of cultivars into the NMG is historical and no objective standards exist for deciding whether newly developed cultivars belong in the NMG. Principal component analyses (PCA) were used to identify nut and kernel characteristics best separating the 4 NMG cultivars (Nonpareil, Jeffries, Kapareil, and Milow) from a representative of the California Marketing Group (cultivar Carmel) and the Mission Marketing Group (cultivar Padre). In addition, discriminant analyses were used to determine cultivar misclassification rates between and within the marketing groups. All 19 evaluated carpological characters differed significantly among the 6 cultivars and during 2 harvest seasons. A clear distinction of NMG cultivars from representatives of the California and Mission Marketing Groups was evident from a PCA involving the 6 cultivars. Further, NMG kernels were successfully discriminated from kernels representing the California and Mission Marketing Groups with overall kernel misclassification of only 2% using 16 of the 19 evaluated characters. Pellicle luminosity was the most discriminating character, regardless of the character set used in analyses. Results provide an objective classification of NMG almond kernels, clearly distinguishing them from kernels of cultivars representing the California and Mission Marketing Groups. Journal of Food Science © 2013 Institute of Food Technologists® No claim to original US government works.

Performance of blueberry cultivars under mild winter conditions

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José Gilberto Sousa Medeiros

2017-08-01

Full Text Available ABSTRACT: Evaluation of yield performance is important to find the most adapted blueberry cultivars in a particular region. This research aimed to evaluate the flowering and hasvesting periods, the production per plant, and fruit quality of eight rabbiteye blueberry cultivars (Aliceblue, Bluebelle, Bluegem, Briteblue, Climax, Delite, Powderblue, and Woodard and two highbush blueberries (Georgiagem and O’Neal, in mild winter conditions in Pinhais-PR. Flowering and harvesting periods, production, berry weight, size, pH, soluble solids, titratable acidity, ratio and color of the fruits were evaluated in the 2013/2014 and 2014/2015 growing seasons, when the plants had two and three years old, respectively. Cultivars flowered from August to September, and harvest was concentrated in November and December. Berry weight, size, pH, soluble solids and acidity varied among the cultivars. The average ratios of 14.97 and 13.39 for each crop proved that the cultivars have good fruit quality. There was little variation in fruit color in the two years evaluated. Blueberry cultivars showed the staining characteristics and physical and chemical attributes of quality compatible to blueberry from other traditional regions. Under mild winter conditions, young plants of rabbiteye blueberry cultivars, Climax, Delite, Bluegem and Powderblue, are the most productive, while the highbusch cultivars bear few fruits.

Desempenho de cultivares de alface na região de Manaus Performance of lettuce cultivars in Manaus region

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Isac N Rodrigues

2008-12-01

Full Text Available Na avaliação de cultivares de hortaliças, os rendimentos médios mais elevados nos ensaios de competição, associados a fatores de qualidade, são utilizados como critérios de recomendação para plantio. O presente trabalho teve como objetivo avaliar as cultivares de alface Frisella, Deisy, Tender Green, Lollo Bionda, Itapuã 401, Marisa, Verônica, Banchu New Red Fire e Hortência nas condições climáticas da região de Manaus, sob cultivo protegido e a campo. Foram avaliadas as características: massa fresca total, massa fresca comercial, diâmetro da cabeça e altura. As cultivares de alface Marisa, Itapuã 401 e Hortência são opções mais adequadas para o cultivo protegido e a campo na região, incluindo-se para o cultivo a campo a cultivar Verônica, a qual apresentou a melhor produção na avaliação realizada neste ambiente.In the evaluation of vegetable cultivars, the high average yield in the competition assays associated to quality factors are utilized as criteria to recommend cultivars. In the present work we evaluated the lettuce cultivars Frisella, Deisy, Tender Green, Lollo Bionda, Itapuã 401, Marisa, Verônica, Banchu New Red Fire and Hortência under the climatic conditions of the region of Manaus, under protected and conventional cultivation. The evaluated characteristics were: total and commercial weight, plant diameter and height. The lettuce cultivars Marisa, Itapuã 401 and Hortência presented higher production in both environments adding Verônica with best production under conventional cultivation.

Carrot Cultivar Evaluation: Soilless Media vs. Hydroponics

OpenAIRE

Pinnock, Derek R.; Bugbee, Bruce

2002-01-01

Nine cultivars of carrots were grown in a growth chamber. Each cultivar was grown both in hydroponic and soil-less media root-zone for sixty days. Three 30L tubs were used for each root-zone treatment. Three cultivars were planted in each tub, initially at 180 plants m-2 then thinned to 90 plants m-2 on day 45.

Northwest Montana Wildlife Mitigation Habitat Protection : Advance Design : Final Report.

Energy Technology Data Exchange (ETDEWEB)

Wood, Marilyn A.

1993-02-01

This report summarizes the habitat protection process developed to mitigate for certain wildlife and wildlife habitat losses due to construction of Hungry Horse and Libby dams in northwestern Montana.

BIODIVERSITY OF NATIONAL SQUASH CULTIVAR ACCESSIONS

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A. F. Bukharov

2017-01-01

Full Text Available The squash is one of  the most  ancient plants, bearing numerous qualities. The squash gave high yield and is unpretentious plant, the fruit of which is long-stored and can be used as boiled, stewed, baked, fried product, and be added to bread, mush and pudding, and be prepared as puree, jam, candied fruit and other meals. Owing to useful characteristics the squash is a valuable source or raw  material for  food  canning  industry,  for  health-care and functional foodstuff production. Its best cultivar accessions contain to 30% of dry matter, to 12% of sugars  and  to  36%  of  carotene.  The  species  of  squash includes 4 subspecies and 20 varieties. One accession that came from Spain in 1937 served as an initial breeding accession for many other table cultivars for long time. For 80 years of national breeding program the many cultivars for  table  use have been released. There are the classic cultivars, such as ‘Mramornaya’, ‘Stolovaya Zimnaya’,  Gribovskaya Zimnaya’,  ‘Donskaya  Sladkaya’, ‘Michurinskaya’ that are selected or developed from first Spanish accession. This richness and originality of cultivar squash accessions should be carefully preserved. There are the new generation cultivars, such as ‘Kroshka’, ‘Malishka’,    ‘Rossiyanka’,    ‘Konfetka’,    ‘Moskvichka’, ‘Vnuchka’ and many others, which are short-tendrils and suitable for  modern  mechanized cultivation  technology. Moreover the development of new cultivars, bearing resistance to biotic and abiotic stress is the main goal of nearest breeding program.

(Lilium) cultivar

African Journals Online (AJOL)

Yomi

2012-08-30

Aug 30, 2012 ... 2National Engineering Research Center for Floriculture, Beijing, China. Accepted 6 August, 2012 ... hybrids lily cultivar 'eyeliner' was selected as the materials. By using the ... of sterilization was not ideal which led to higher.

NS Pudarka: A new winter wheat cultivar

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Hristov Nikola

2014-01-01

Full Text Available The high-yielding, medium late winter wheat cultivar NS Pudarka was developed by crossing genetic divergent parents: line NMNH-07 and cv. NS 40S and Simonida. In cultivar NS Pudarka genes responsible for high yield potential, very good technological quality, resistance to lodging, low temperature and diseases, were successfully combined. It was registered by Ministry of agriculture, forestry and water management of Serbia Republic in 2013. This cultivar has wide adaptability and stability of yield that enable growing in different environments with optimal agricultural practice. On the base of technological quality this cultivar belongs to the second quality class, A2 farinograph subgroup and second technological group.

Sensory profile of eleven peach cultivars Perfil sensorial de onze cultivares de pêssegos

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Francine Lorena Cuquel

2012-03-01

Full Text Available The goal of this study was to evaluate the sensory profile of eleven peach cultivars grown in an experimental orchard located in the city of Lapa (PR, Brazil in two seasons. The peach cultivars analyzed were Aurora I, Chimarrita, Chiripá, Coral, Eldorado, Granada, Leonense, Maciel, Marli, Premier, and Vanguarda. The sensory analysis was performed by previously trained panelists; 20 of them in the first season and 10 in the second season. The sensory evaluation was performed using Quantitative Descriptive Analysis, in which the following attributes were measured: appearance, aroma, flesh color, flesh firmness, flavor, and juiciness. The results showed preference for sweet, soft, and juicy fruits. Chimarrita, Chiripá, and Coral fruits showed better sensorial performance than the other peach cultivars. It was also verified that the analysis of the attributes aroma, flesh firmness, and flavor is enough for performing the sensory profile of peach fruits for in natura consumption.Este trabalho teve como objetivo avaliar o perfil sensorial de onze cultivares de pêssego produzidos em duas safras em um pomar experimental implantado na Lapa (PR, Brasil. Os cultivares analisados foram Aurora I, Chimarrita, Chiripá, Coral, Eldorado, Granada, Leonense, Maciel, Marli, Premier e Vanguarda. As análises sensoriais foram realizadas por julgadores previamente treinados, sendo 20 julgadores na primeira safra e 10 na segunda. O método de avaliação empregado foi a Análise Descritiva Quantitativa na qual foram mensurados os atributos aparência, aroma, cor de polpa, firmeza de polpa, sabor e suculência dos frutos. Os resultados obtidos demonstraram a preferência por frutos de sabor adocicado, com polpa macia e suculenta. Os cultivares Chimarrita, Chiripá e Coral obtiveram o melhor desempenho nas análises sensoriais. Foi verificado ainda que os atributos aroma, firmeza de polpa e sabor são considerados suficientes para a avaliação do perfil sensorial de

Montana Highway Safety Improvement Program : an RSPCB Peer Exchange

Science.gov (United States)

2011-05-01

This report provides a summary of a peer-to-peer (P2P) videoconference sponsored by the : Montana Department of Transportation (MDT) and the Federal Highway Administration : (FHWA) Office of Safety. The videoconference format provided a low-cost oppo...

Inflammatory Process Modulation by Homeopathic Arnica montana 6CH: The Role of Individual Variation

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Ana Paula Kawakami

2011-01-01

Full Text Available The effects of Arnica montana 6cH on the individual modulation of acute inflammation kinetics in rats were evaluated. Adult male Wistar rats were inoculated with 1% carrageenan into the footpad and treated with Arnica montana 6cH, dexamethasone (4.0 mg/kg; positive control or 5% hydroalcoholic solution (negative control, per os, each 15 minutes, between 30 and 180 minutes after the irritant inoculation. Histopathological and immunohistochemistry procedures were done in order to get a panel of inflammatory positive cells for CD3 (T lymphocytes, CD45RA (B lymphocytes, CD18 (beta 2 integrin, CD163 (ED2 protein, CD54 (ICAM-1, and MAC 387 (monocytes and macrophages. The statistical treatment of data included a posteriori classification of animals from each group (N=20 in two subgroups presenting spontaneous precocious or late oedema. Animals that presented precocious oedema were less responsible to Arnica montana 6cH in relation to hemodynamic changes. Instead, rats that exhibited late oedema presented less intense oedema (P=.01, lower percentage of mast cell degranulation (P=.0001, and increase in lymphatic vessels diameter (P=.05. The data suggest an individually qualitative adjustment of inflammatory vascular events by Arnica montana 6cH.

Alleloppathic effects and insecticidal activity of the aqueous extract of Satureja montana L.

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Šućur Jovana

2015-01-01

Full Text Available Extensive use of synthetic insecticides, herbicides and other pesticides has negative effects on the environment and on human and animal health. Therefore scientists are turning towards natural pesticides such as active components of plant extracts. Effect of two concentrations (0.1% and 0.2% of Satureja montana L. aqueous extract on lipid peroxidation process, as well as the activity of the antioxidant enzymes (SOD, GPX, PPX and CAT in leaves and roots of pepper and black nightshade seedlings were examined 24, 72 and 120h after the treatment. Our results showed that higher concentration of S. montana aqueous extract induced lipid peroxidation in black nightshade roots. Furthermore, significant increases of pyrogallol and guaiacol peroxidase were detected in black nightshade leaves treated with 0.2% S. montana aqueous extract. The second aim was to evaluate effectiveness of aqueous extract as contact toxicant against whitefly. It was observed that aqueous extract with concentration of 0.2% showed toxic effect with 68.33% mortality after 96h.

Developing native Vaccinium crops and cultivars

Science.gov (United States)

Vaccinium species have long been harvested from the wild. Breeding and cultivar development, however, did not begin until about 1911 in New Jersey with efforts to commercially cultivate northern highbush blueberry (Vaccinium corymbosum). Cultivar development spread to cranberry (V. macrocarpon) and ...

Newly registered small grains cultivars from Zaječar

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Dodig Dejan

2006-01-01

Full Text Available The paper presents principal properties of 5 new cultivars of small grains created in the Center for Agricultural and Technological Research in Zaječar. They are as follows: Arena (winter bread wheat, Premium (winter malting barley, Tango (winter triticale, Center (spring oat and Balsa (spring naked barley. In 2004 and 2005 these cultivars were registered by the Ministry of Agriculture, Forestry and Water Management of the Republic of Serbia. The Arena cultivar has good indices of technological quality and high yield genetic potential which is successfully preserved even in dry years. The Premium cultivar, besides high yield capacity, has a very low protein grain content what makes it especially suitable for brewers industry. Triticale Tango is intended, in the first place, for animal feeds and like Arena cultivar. is highly tolerant to draught. Spring oat Center is Zaječar's first made oat cultivar in this group of small grains. Cultivar Balsa is the first spring six-row naked barley in Serbia and Montenegro. Creating of Balsa cultivar is the attempt to meet the future demands on the market. By the act of registering above mentioned cultivars the Center in Zajecar has completed and enlarged its already existing variety of small grains assortment.

Microrganismos associados a frutos de diferentes cultivares de noz Pecan Microorganisms associated with fruits of different cultivars of Pecan nut

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Nádia Izumi Terabe

2008-04-01

Full Text Available O conhecimento do comportamento natural da nogueira Pecan às principais doenças é de suma importância para o estabelecimento do planejamento da implantação da cultura. O controle fitossanitário e tratos culturais devem ser realizados de modo a não comprometerem a qualidade do produto final, as amêndoas. Foram avaliadas nozes produzidas na safra de 2005 e oriundas de Uraí-PR, pelas cultivares Burkett, Frotscher e Moneymaker, para identificar e quantificar os microrganismos associados à amêndoas e cascas dos frutos, bem como observar diferenças entre organismos colonizadores das cultivares. Os frutos foram avaliados na pós-colheita, aos trinta dias de armazenamento em ambiente, através da metodologia do papel de filtro, sendo submetidos ou não à assepsia superficial. O fungo Cladosporium caryigenum, promotor da rancificação das amêndoas foi observado, em amêndoas e cascas, nas cultivares Burkett, Frotscher e Moneymaker; Fusarium sp., foi encontrado em porcentuais elevados, tanto em amêndoas quanto em cascas das três cultivares estudadas; Cephalothecium roseum, causador do mofo róseo em amêndoas, na cultivar Frotscher. Aspergillus sp. e Penicillium sp., causadores de emboloramento e produtores de aflotoxinas foram observados em porcentuais representativos, em amêndoas da cultivar Frotscher e em amêndoas e cascas das cultivares Frotscher, Burkett e Moneymaker, respectivamente. Os maiores porcentuais de perda do rendimento foram observados na cultivar Burkett, por causa da incidência de Colletotrichum sp., causador da antracnose em amêndoas, que acarreta escurecimento e deterioração do produto final, levando-o ao descarte.The knowledgement of the natural behavior of the main diseases of Pecan nut is of utmost importance for the stablishment of an implantation plan for that culture. The phytosanitary control and cultural treatments should be performed in order not to change the quality of the final product. Nuts harvest

75 FR 50930 - Final Determination To Approve Alternative Final Cover Request for the Lake County, Montana Landfill

Science.gov (United States)

2010-08-18

... Determination To Approve Alternative Final Cover Request for the Lake County, Montana Landfill AGENCY... VIII is making a final determination to approve an alternative final cover for the Lake County landfill, a municipal solid waste landfill (MSWLF) owned and operated by Lake County, Montana on the...

DNA methylation polymorphism in a set of elite rice cultivars and its possible contribution to inter-cultivar differential gene expression.

Science.gov (United States)

Wang, Yongming; Lin, Xiuyun; Dong, Bo; Wang, Yingdian; Liu, Bao

2004-01-01

RAPD (randomly amplified polymorphic DNA) and ISSR (inter-simple sequence repeat) fingerprinting on HpaII/MspI-digested genomic DNA of nine elite japonica rice cultivars implies inter-cultivar DNA methylation polymorphism. Using both DNA fragments isolated from RAPD or ISSR gels and selected low-copy sequences as probes, methylation-sensitive Southern blot analysis confirms the existence of extensive DNA methylation polymorphism in both genes and DNA repeats among the rice cultivars. The cultivar-specific methylation patterns are stably maintained, and can be used as reliable molecular markers. Transcriptional analysis of four selected sequences (RdRP, AC9, HSP90 and MMR) on leaves and roots from normal and 5-azacytidine-treated seedlings of three representative cultivars shows an association between the transcriptional activity of one of the genes, the mismatch repair (MMR) gene, and its CG methylation patterns.

Phenotypic profiles of Armenian grape cultivars

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Aroutiounian Rouben

2015-01-01

Full Text Available The conservation and sustainable use of grapevine biodiversity in Armenia is particularly important due to the large number of traditional local varieties. Being partially different from European grapevine gene pool, the material of Armenian local cultivars significantly contributes to the understanding of the genetic variation and is valuable source for target selection. During last years many Armenian grapevine cultivars have been already described and their genotypes determined, but some local varieties and wild accessions remain unidentified and their phenotypic characteristics overlooked. The comprehensive analysis of phenotypes is essential for research, including genetic association studies, cultivar evaluation and selection. The goal of our research was the phenotyping on the base of reproductive, carpological and analytical characteristics of 80 Armenian aboriginal and new grape cultivars. Description of phenotypic profiles is important step towards identification and conservation of genetic resources of Armenian grapes. In future, these data can be applied for breeding of improved grape varieties targeted to fresh consumption and wine production.

Produção comercial de cultivares de alface em Bananeiras Marketable production of lettuce cultivars in Bananeiras, Brazil

Directory of Open Access Journals (Sweden)

Djail Santos

2011-12-01

Full Text Available Um aspecto importante na escolha de cultivares para uma determinada condição ambiental é a determinação da produção comercial, que indica o potencial de produção por área. O objetivo do trabalho foi avaliar a produção comercial de cultivares de alface nas condições de solo e clima de Bananeiras, Paraíba, durante a estação chuvosa. Foram avaliadas oito cultivares (Cindy, Elba, Grand Rapids, Kaesar, Mimosa, Sabrina, Summer Green e Verônica, no delineamento experimental de blocos casualizados, com quatro repetições. As parcelas tinham 27 plantas, espaçadas de 30 cm entre fileiras e entre linhas. Aos 51 dias após o transplante, as plantas foram colhidas e avaliadas quanto à massa fresca total e comercial, massa seca de folhas, número de folhas, diâmetro da planta, índice comercial e produção comercial. Os maiores valores de massa fresca total e comercial, de diâmetro da planta e produção comercial foram verificados para a cultivar Kaesar. Quanto à massa seca, 'Kaesar' e 'Elba' apresentaram os valores mais elevados. Os maiores números de folha foram obtidos com 'Mimosa', 'Elba', 'Sabrina' e 'Summer Green'. As cultivares Grand Rapids, Verônica e Kaesar mostraram-se mais suscetíveis à septoriose, principalmente nas folhas mais velhas. Considerando-se os resultados e a preferência dos consumidores, 'Kaesar' e 'Summer Green' foram as mais promissoras para introdução e testes em áreas de produção comercial de alface.An important issue when choosing cultivars for specific environmental conditions is to estimate the marketable production, which indicates the potential production per area. The objective of this study was to evaluate the marketable production of lettuce cultivars under the soil and climatic conditions of Bananeiras, Paraíba, Brazil, during the rainy season. The experiment was carried out as a complete randomized blocks design with eight cultivars (Cindy, Elba, Grand Rapids, Kaesar, Mimosa, Sabrina

CORPORATE SOCIAL RESPONSIBILITY. EXAMPLE ROSIA MONTANA GOLD CORPORATION

OpenAIRE

Vasile Burja; Silvia – Stefania Mihalache

2010-01-01

Corporate Social Responsibility, a concept without a world accepted definition is starting to beused in Romania as well. This is the reason why in the present article we try to make a theoreticaldescription of the present concept and to exemplify it by presenting the responsible activities of acorporation in Romania, Rosia Montana Gold Corporation.

Identificação de cultivares de trigo pelo teste de fenol Cultivars identification of wheat by phenol test

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Nilson Lemos de Menezes

1995-01-01

Full Text Available O teste de fenol é recomendado para a identificação de cultivares de trigo em laboratório e se baseia na reação de compostos presentes no pericarpo das sementes. Devido à reação constante para cada cultivar, o teste serve para caracterização rápida e fácil de materiais com reações diferentes. No presente trabalho, com o objetivo de facilitar a identificação varietal em trigo, determinou-se a reação ao fenol de 42 cultivares, que estiveram ou estão em recomendação no Brasil.The phenol test is recommended for wheat cultivar identification and is based on the reaction of compounds present in the seeds pericarp. Due to the constant reaction for each cultivar, the test may be used for a rapid and easy characterization of different reactions materiais. In this essay, the phenol reaction was determined in 42 brazilian wheat varieties aiming to facilitate its identification.

Bagasse production potential from late sugar cane cultivars; Potencial produtivo de bagaco por cultivares tardios de cana-de-acucar

Energy Technology Data Exchange (ETDEWEB)

Silva, Tulibio F. da; Silva Neto, Helio F. da; Tasso Junior, Luiz C.; Marques, Diogo; Marques, Marcos O. [Universidade Estadual Paulista (FCAV/UNESP), Jaboticabal, SP (Brazil). Fac. de Ciencias Agrarias e Veterinarias], E-mail: tulibio_fernandes@yahoo.com.br

2010-07-01

In order to diversify energy sources, the residue of sugarcane gathers attributes that qualify its use. Therefore, this study was to evaluate the potential of bagasse production in late cultivars of sugarcane. The experimental design was a randomized block design with 6 treatments (cultivars) and 3 replications. The experiment was carried out at FCAV/UNESP Jaboticabal. To calculate the productivity, it was counted the number of stems in a row linear meter, it was obtained the weight of stems. The percentage of fiber for each cultivar was determined by a calculation of estimated production and productivity of mulch. Using these values to estimate the number of people who would benefit from the energy generated from the combustion of bagasse in a process of cogeneration power. The results were submitted to analysis of variance by F test and averages compared by Tukey test at 5% probability. Cultivars RB867515, RB72454 and CTC6 showed the best performance, indicating its greater potential for power cogeneration. Cultivars CTC IAC94-2 and 2101 were lower when considering the results obtained. (author)

Phytochemical profile and anticholinesterase and antimicrobial activities of supercritical versus conventional extracts of Satureja montana.

Science.gov (United States)

Silva, Filipa V M; Martins, Alice; Salta, Joana; Neng, Nuno R; Nogueira, José M F; Mira, Delfina; Gaspar, Natália; Justino, Jorge; Grosso, Clara; Urieta, José S; Palavra, António M S; Rauter, Amélia P

2009-12-23

Winter savory Satureja montana is a medicinal herb used in traditional gastronomy for seasoning meats and salads. This study reports a comparison between conventional (hydrodistillation, HD, and Soxhlet extraction, SE) and alternative (supercritical fluid extraction, SFE) extraction methods to assess the best option to obtain bioactive compounds. Two different types of extracts were tested, the volatile (SFE-90 bar, second separator vs HD) and the nonvolatile fractions (SFE-250 bar, first and second separator vs SE). The inhibitory activity over acetyl- and butyrylcholinesterase by S. montana extracts was assessed as a potential indicator for the control of Alzheimer's disease. The supercritical nonvolatile fractions, which showed the highest content of (+)-catechin, chlorogenic, vanillic, and protocatechuic acids, also inhibited selectively and significantly butyrylcholinesterase, whereas the nonvolatile conventional extract did not affect this enzyme. Microbial susceptibility tests revealed the great potential of S. montana volatile supercritical fluid extract for the growth control and inactivation of Bacillus subtilis and Bacillus cereus, showing some activity against Botrytis spp. and Pyricularia oryzae. Although some studies were carried out on S. montana, the phytochemical analysis together with the biological properties, namely, the anticholinesterase and antimicrobial activities of the plant nonvolatile and volatile supercritical fluid extracts, are described herein for the first time.

Productive performance of blackberry cultivars in altitude region

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Jéssica de Oliveira

2017-11-01

Full Text Available ABSTRACT: Information on the production performance of blackberry in less colder regions are fundamentals to the expansion of the cultivated area and extension of management practices for cultivars adapted to climate conditions in Brazil. The research was carried out with the aim to evaluate the productive performance of different blackberries cultivars in altitude region of 1,387m with mild temperatures, situate at 18º14’56”S, 43º36’0”W, in Minas Gerais State, Brazil. It was carried during the seasons 2013/2014, 2014/2015 and 2015/2016. The blackberry cultivars evaluated were the following ones ‘Brazos’, ‘Guarani’, ‘Tupy’ and ‘Xavante’. Flowering and harvesting of cultivars were evaluated as well as climatological data of the area in order to relate the number of hours of accumulated cold less than 13°C, 10°C and 7.2°C with production and crop time. To determine the production, the mass of blackberries harvested per plant was measured. Production of blackberry cultivars was extended in altitude region with similar productivity to the other producing regions in Brazil. Productive performance of the cultivars varied according to the accumulation of cold hours with mild temperatures that occurred in cultivation region. ‘Brazos’, ‘Guarani’, ‘Tupy’ and ‘Xavante’ showed good adaptation, being ‘Brazos’ the cultivar most productive.

Caracterização botânica de cultivares de morangueiro Botanical characterization of strawberry cultivars

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Rachel Benetti Queiroz Voltan

1996-01-01

Full Text Available Foi realizado um estudo de caracterização botânica em seis cultivares de morangueiro (Fragaria X ananassa Duch. quatro desenvolvidos no Brasil - 'Campinas (IAC-2712', 'Guarani (IAC-5074', 'AGF 080' e 'IAC Princesa Isabel' - e dois introduzidos - 'Reiko', do Japão, e 'Sequóia', dos Estados Unidos - visando sua distinção taxonômica. Os experimentos foram desenvolvidos na Estação Experimental de Monte Alegre do Sul (SP durante os anos agrícolas de 1992/93. Os caracteres morfológicos que se mostraram úteis na diferenciação dos seis cultivares foram os seguintes: tipo de planta; número de folíolos; coloração da folha; razão entre o comprimento e a largura dos folíolos medianos; ângulo da base do limbo do folíolo mediano; comprimento das estipulas; posição das flores primárias em relação à folhagem; número de pétalas das flores primárias; razão entre o comprimento e a largura das pétalas; receptáculo do ovário; forma das infrutescências e da base da infrutescência; posição do cálice e calículo; espaços vazios no interior da infrutescência e comprimento e largura da infrutescência. Para a identificação dos cultivares, foi elaborada uma chave analítica. Os cultivares AGF 080 e Campinas não foram distinguidos com base nos caracteres analisados.Six strawberry cultivars (Fragaria X ananassa Duch., four developed in Brazil (AGF 080, Campinas, Guarani and IAC Princesa Isabel and two introduced (Reiko from Japan and Sequoia from USA were botanically evaluated in order to screening morphological vegetativa and reproductive characters to get the taxonomical distinction of them. Two experiments were carried out in 1992 and 1993 at the Experimental Station of Monte Alegre do Sul, Instituto Agronômico (IAC, State of São Paulo, Brazil. The following morphological characters were screened to distinguish the cultivars studied: growing habit; leaflet number; leaf colour; middle leaflet length and width ratio; middle

POTENCIAL PRODUTIVO DE CULTIVARES DE MORANGUEIRO

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AMANDA GONÇALVES GUIMARÃES

2015-03-01

Full Text Available RESUMO O objetivo foi avaliar o potencial produtivo de cultivares de morangueiro em região representativa do Alto Jequitinhonha. O experimento foi conduzido na fazenda Mape Frutas Ltda., localizada no município de Datas-MG, em delineamento em blocos ao acaso, com oito cultivares de morangueiro em quatro repetições, para verificar a produção de mudas e de frutos. A contagem da produção de estolões e de mudas foi realizada aos 180 dias após o plantio. A avaliação das variáveis relacionadas à produção de frutos foi feita duas vezes por semana, no período de maio a outubro de 2012. Das cultivares de dias curtos (Festival, Campinas, Toyonoka, Dover, Oso Grande e Camarosa e dias neutros (Diamante e Aromas, apenas Toyonoka foi a que apresentou menor desempenho para as variáveis. A significativa superioridade das cultivares Camarosa e Festival, para praticamente todas as variáveis avaliadas, permite recomendá-las para regiões com características edafoclimáticas semelhantes às da região onde o experimento foi conduzido. Dentre as cultivares avaliadas, as mais precoces tenderam a apresentar maior desempenho para variáveis relacionadas à produção de frutos.

Forest succession on four habitat types in western Montana

Science.gov (United States)

Stephen F. Arno; Dennis G. Simmerman; Robert E. Keane

1985-01-01

Presents classifications of successional community types on four major forest habitat types in western Montana. Classifications show the sequences of seral community types developing after stand-replacing wildfire and clearcutting with broadcast burning, mechanical scarification, or no followup treatment. Information is provided for associating vegetational response to...

Assessment of coal geology, resources, and reserves in the Montana Powder River Basin

Science.gov (United States)

Haacke, Jon E.; Scott, David C.; Osmonson, Lee M.; Luppens, James A.; Pierce, Paul E.; Gunderson, Jay A.

2013-01-01

The purpose of this report is to summarize geology, coal resources, and coal reserves in the Montana Powder River Basin assessment area in southeastern Montana. This report represents the fourth assessment area within the Powder River Basin to be evaluated in the continuing U.S. Geological Survey regional coal assessment program. There are four active coal mines in the Montana Powder River Basin assessment area: the Spring Creek and Decker Mines, both near Decker; the Rosebud Mine, near Colstrip; and the Absaloka Mine, west of Colstrip. During 2011, coal production from these four mines totaled approximately 36 million short tons. A fifth mine, the Big Sky, had significant production from 1969-2003; however, it is no longer in production and has since been reclaimed. Total coal production from all five mines in the Montana Powder River Basin assessment area from 1968 to 2011 was approximately 1.4 billion short tons. The Rosebud/Knobloch coal bed near Colstrip and the Anderson, Dietz 2, and Dietz 3 coal beds near Decker contain the largest deposits of surface minable, low-sulfur, subbituminous coal currently being mined in the assessment area. A total of 26 coal beds were identified during this assessment, 18 of which were modeled and evaluated to determine in-place coal resources. The total original coal resource in the Montana Powder River Basin assessment area for the 18 coal beds assessed was calculated to be 215 billion short tons. Available coal resources, which are part of the original coal resource remaining after subtracting restrictions and areas of burned coal, are about 162 billion short tons. Restrictions included railroads, Federal interstate highways, urban areas, alluvial valley floors, state parks, national forests, and mined-out areas. It was determined that 10 of the 18 coal beds had sufficient areal extent and thickness to be evaluated for recoverable surface resources ([Roland (Baker), Smith, Anderson, Dietz 2, Dietz 3, Canyon, Werner

Caracterização molecular de cultivares de cebola com marcadores microssatélites Molecular characterization of onion cultivars using microsatellite markers

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Carlos Antonio Fernandes Santos

2010-01-01

Full Text Available O objetivo deste trabalho foi estabelecer padrões alélicos e estimar as distâncias genéticas baseadas em marcador SSR de 44 cultivares de cebola adaptadas às condições de cultivo tropicais e subtropicais do Brasil. Para visualização da similaridade genética, utilizou-se o dendrograma UPGMA gerado da matriz de distâncias do coeficiente de Jaccard, com base em 40 alelos de 13 locos SSR. O DNA total foi extraído pelo método CTAB 2x, e os produtos de PCR foram analisados em géis de poliacrilamida desnaturante 6% e corados com nitrato de prata. O número de pares de bases foi estimado pelo método da mobilidade inversa, com base em regressão de produtos de tamanho conhecido. A média da heterozigosidade dos locos SSR foi 0,58. Os 40 alelos dos 13 locos SSR foram suficientes para distinguir as 44 cultivares de cebola. O maior número de alelos em comum foi observado entre as cultivares Yellow Granex e Henry's Special PRR e o menor, entre as cultivares Baia Periforme Super Precoce e Excel. Os sete grupos principais de cultivares identificados no dendrograma apresentaram concordância com a genealogia conhecida e o tipo agronômico das cultivares avaliadas. Os locos SSR selecionados são adequados para melhoramento e proteção de cultivares da espécie.The objective of this work was to establish allelic patterns and to estimate genetic distances based on the SSR marker in 44 onion cultivars adapted to Brazil's tropical and subtropical growing conditions. An UPGMA dendrogram generated from the distance matrix of the Jaccard's coefficient, based on 40 alleles of 13 SSR loci, was used for visualizing genetic similarities. Total DNA was extracted according to the CTAB 2x protocol, and the PCR products were analyzed in 6% denaturing polyacrylamide gels and stained with silver nitrate. The number of base pairs was estimated by the inverse mobility method, based on regression of products of known size. The heterozygosity mean was 0.58 for all

NPDES Permit for Crow Nation Water Treatment Plants in Montana

Science.gov (United States)

Under NPDES permit MT-0030538, the U.S. Bureau of Indian Affairs is authorized to discharge from the Crow Agency water treatment plants via the wastewater treatment facility located in Bighorn County, Montana to the Little Bighorn River.

Montana Rivers Information System : Edit/Entry Program User's Manual.

Energy Technology Data Exchange (ETDEWEB)

United States. Bonneville Power Administration; Montana Department of Fish, Wildlife and Parks

1992-07-01

The Montana Rivers Information System (MRIS) was initiated to assess the state`s fish, wildlife, and recreation value; and natural cultural, and geologic features. The MRIS is now a set of data bases containing part of the information in the Natural Heritage Program natural features and threatened and endangered species data bases and comprises of the Montana Interagency Stream Fisheries Database; the MDFWP Recreation Database; and the MDFWP Wildlife Geographic Information System. The purpose of this User`s Manual is to describe to the user how to maintain the MRIS database of their choice by updating, changing, deleting, and adding records using the edit/entry programs; and to provide to the user all information and instructions necessary to complete data entry into the MRIS databases.

Phenological behaviour of Vitis rotundifolia cultivars in Pinhais – PR / Comportamento fenológico de cultivares de Vitis rotundifolia em Pinhais – PR

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Flávio Zanette

2010-04-01

Full Text Available The aim of this work was to characterize the phenological cycle of nine Vitis rotundifolia cultivars during the 2004/2005 season. The cultivars were Bontiful, Creek, Dixie, Magnolia, Magoon, Noble, Regale, Roanoke e Topsail. The experiment was performed on an orchard implanted in 1999 at the Canguiri Experimental Station of the Federal University of Paraná in Pinhais-PR. The phenology of two adult plants of each cultivar was monitored. The recorded phenological stages were: 1 Dormant bud; 2 Swollen bud; 3 Wool bud; 4 Green tip; 5 Bud burst (first leaf appearance; 6 Two to three leaves unfolded; 7 Five to six leaves unfolded; 8 Fully developed inflorescence; 9 Trace bloom (flowerhoods detached; 10 Full flowering (50% of the flowerhoods fallen; 11 Fruit set; 12 Groat-sized berries; 13 Pea-sized berries; 14 50% filled berries (beginning to touch berries; 15 Final size; 16 Color change; 17 Berries ripe for harvest; and 18 End of harvesting. A very long phenological cycle was observed when compared to species such as Vitis vinifera and Vitis labrusca. These evaluations allowed us to conclude that: a there is no difference in the phenological cycle periods between bronze and dark skinned cultivars; b cultivars presented desuniform wool bud to full flowering cycle, ranging from 25 days (‘Regale’ to 81 days (‘Creek’; c the cultivar Regale presented the longest cycle (203 days from full flowering to harvest and the cultivar Creek the shortest (136 days. The evaluated cultivars additionally presented desuniform ripening and a tendency to drop berries. O objetivo foi caracterizar o ciclo fenológico de nove cultivares de Vitis rotundifolia avaliadas na safra de 2004/2005. As cultivares estudadas foram as seguintes: Bontiful, Creek, Dixie, Magnolia, Magoon, Noble, Regale, Roanoke e Topsail. O trabalho foi realizado em um pomar do Setor de Fruticultura da Estação Experimental do Canguiri da Universidade Federal do Paraná, em Pinhais-PR, sendo que

Metabolomics-Driven Nutraceutical Evaluation of Diverse Green Tea Cultivars

Science.gov (United States)

Ida, Megumi; Kosaka, Reia; Miura, Daisuke; Wariishi, Hiroyuki; Maeda-Yamamoto, Mari; Nesumi, Atsushi; Saito, Takeshi; Kanda, Tomomasa; Yamada, Koji; Tachibana, Hirofumi

2011-01-01

Background Green tea has various health promotion effects. Although there are numerous tea cultivars, little is known about the differences in their nutraceutical properties. Metabolic profiling techniques can provide information on the relationship between the metabolome and factors such as phenotype or quality. Here, we performed metabolomic analyses to explore the relationship between the metabolome and health-promoting attributes (bioactivity) of diverse Japanese green tea cultivars. Methodology/Principal Findings We investigated the ability of leaf extracts from 43 Japanese green tea cultivars to inhibit thrombin-induced phosphorylation of myosin regulatory light chain (MRLC) in human umbilical vein endothelial cells (HUVECs). This thrombin-induced phosphorylation is a potential hallmark of vascular endothelial dysfunction. Among the tested cultivars, Cha Chuukanbohon Nou-6 (Nou-6) and Sunrouge (SR) strongly inhibited MRLC phosphorylation. To evaluate the bioactivity of green tea cultivars using a metabolomics approach, the metabolite profiles of all tea extracts were determined by high-performance liquid chromatography-mass spectrometry (LC-MS). Multivariate statistical analyses, principal component analysis (PCA) and orthogonal partial least-squares-discriminant analysis (OPLS-DA), revealed differences among green tea cultivars with respect to their ability to inhibit MRLC phosphorylation. In the SR cultivar, polyphenols were associated with its unique metabolic profile and its bioactivity. In addition, using partial least-squares (PLS) regression analysis, we succeeded in constructing a reliable bioactivity-prediction model to predict the inhibitory effect of tea cultivars based on their metabolome. This model was based on certain identified metabolites that were associated with bioactivity. When added to an extract from the non-bioactive cultivar Yabukita, several metabolites enriched in SR were able to transform the extract into a bioactive extract

Potential of bagasse production from middle sugarcane cultivars; Potencial de producao de bagaco por cultivares medias de cana-de-acucar

Energy Technology Data Exchange (ETDEWEB)

Lebre, Antonio Carlos Pereira; Siva Neto, Helio Francisco da; Marques, Diogo; Marques, Marcos Omir; Tasso Junior, Luiz Carlos [Universidade Estadual Paulista (FCAV /UNESP), Jaboticabal, SP (Brazil). Fac. de Ciencias Agrarias e Veterinarias. Dept. de Tecnologia], E-mail: antoniocplebre8@hotmail.com

2010-07-01

In the search for sustainability a major concern relates to the sugarcane agroindustry waste, and their potential use as an energy source. In this sense, the objective was to identify the production and productivity of bagasse of different sugarcane cultivars, aimed at the completion of the cogeneration of electricity. The experimental design was a randomized block design with 6 treatments (cultivars) and 3 replications. The experiment was carried out at FCAV/UNESP-Jaboticabal. To calculate the productivity, the number of stems was counted in a meter, obtaining the weight of stems. The percentage of fiber for each cultivar was determined by calculating the estimated production and productivity of mulch. Using these values to estimate the potential number of people who could benefit from the electricity that would be produced by the combustion of bagasse generated within a system of cogeneration of electricity put in practice by the sugar mills and ethanol distilleries. Cultivars with the best performance IAC91-1099 and CEC 15 who obtained the highest production and productivity of mulch increases the number of people benefited. Cultivars IAC94-4004-5000 and IAC95 showed intermediate results and the cultivars SP81-3250 and RB855536 obtained less satisfactory results. (author)

78 FR 65703 - Notice of Availability of the Idaho and Southwestern Montana Greater Sage-Grouse Draft Land Use...

Science.gov (United States)

2013-11-01

...] Notice of Availability of the Idaho and Southwestern Montana Greater Sage-Grouse Draft Land Use Plan... Environmental Impact Statement (EIS) for managing Greater Sage- Grouse (GRSG) in the Idaho and Southwestern... Southwestern Montana Greater Sage-Grouse Draft LUP Amendments/Draft EIS by any of the following methods: Email...

Características qualitativas de cultivares de cebola no sul de Minas Gerais Qualitative characteristics of onion cultivars in southern Minas Gerais State

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Silvio Júlio de Rezende Chagas

2004-02-01

Full Text Available Com o objetivo de determinar a composição físico-química e química de cultivares de cebola (Allium cepa L., conduziu-se um ensaio na Fazenda Experimental de Lavras da EPAMIG, Lavras-MG, no período de março a setembro de 1995. O delineamento experimental foi de blocos ao acaso com quatro repetições e 6 tratamentos, constituídos pelas cultivares Baia Periforme, Crioula, Granex 33, Pira Ouro, Jubileu e Texas Grano 502. Após a cura, avaliaram-se o pH, sólidos solúveis e totais (%, acidez titulável (%, ácido pirúvico (µmol/g, açúcares totais, redutores e não-redutores (% e índice industrial dos bulbos. As cultivares Crioula, Baia Periforme, Pira Ouro e Jubileu apresentaram as maiores concentrações de sólidos totais e solúveis. A acidez mais elevada foi observada nas cultivares Crioula (0,370% e Pira Ouro (0,315%. Os maiores índices industriais foram apresentados pelas cultivares Crioula (0,87 e Baia Periforme (0,75, e os menores, pelas cultivares Texas Grano 502 (0,51 e Granex 33 (0,32.This study was carried out from March to September of 1995, in the Experimental Field of EPAMIG, Lavras-MG, Brazil, with the objective of determining the physico-chemical and chemical composition of onions from different cultivars (Allium cepa L.. The experimental design was completely randomized blocks with four repetitions and six cultivars as follow: Baia Periforme, Crioula, Granex 33, Pira Ouro, Jubileu and Texas Grano 502. After the cure it was evaluated the pH, soluble and total solids (%, titrate acidity (%, pyruvic acid (µmol/g, total sugar, reducers and non reducers (% and industrial index. The cultivars Crioula, Baia Periforme, Pira Ouro and Jubileu showed the largest concentrations of total and soluble solids. The highest acidity indexes were observed in the cultivars Crioula (0.370% and Pira Ouro (0.315%. The largest industrial indexes were found in the cultivars Crioula (0.87 and Baia Periforme (0.75, and the smallest ones in the

Potencial de melhoramento e divergência genética de cultivares de milho-pipoca Potential to breeding and genetic divergence in popcorn cultivars

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Glauco Vieira Miranda

2003-06-01

Full Text Available O objetivo deste trabalho foi avaliar o potencial de melhoramento e a divergência genética de nove cultivares tropicais de milho-pipoca. A divergência genética foi estimada por meio da técnica de análise multivariada e as cultivares foram agrupadas com base na distância generalizada de Mahalanobis (DGM, utilizando o método de otimização de Tocher e a dispersão gráfica. Com produtividade de grãos acima de 3 t/ha, destacaram-se as cultivares CMS 43, IAC 112, Viçosa, CMS 42 e Branco, e com índices de capacidade de expansão acima de 24 (v/v, as cultivares IAC 112, RS 20 e Zélia. As estimativas da DGM indicaram (RS 20 e Beija-flor e (Rosa-claro e RS 20 os pares de cultivares mais distantes geneticamente, e (IAC 112 e Viçosa e (Branco e CMS 42, os pares mais similares. Foram identificados três ou quatro grupos divergentes dependendo do método de agrupamento. Para o melhoramento de milho-pipoca, as cultivares com maiores potenciais são RS 20, Zélia, IAC 112 e Beija-flor. As cultivares apresentam divergência genética.The objective of this paper was to evaluate the potential of breeding and genetic divergence in nine tropical popcorn cultivars. The genetic divergence was estimated using multivariate analysis techniques and the cultivars were grouped based in Mahalanobis' generalized distance (MGD, using Tocher's optimization and graphic dispersion. The best cultivars concerning the yield grain above 3 ton/ha were CMS 43, IAC 112, Viçosa, CMS 42 and Branco, and to popping expansion above 24 (v/v were IAC 112, RS 20 and Zélia. The estimates of MGD indicated the pairs genetically more distant (RS 20, Beija-flor and (Rosa-claro, RS 20 as well as pairs genetically more similar (IAC 112, Viçosa and (Branco, CMS 42. Tree or four genetic divergences groups were formed depending on the method. To popcorn breeding, cultivars with best potential are RS 20, Zélia, IAC 112, and Beija-flor. The cultivars show genetic divergence.

LEAF MINERAL CONCENTRATION OF FIVE OLIVE CULTIVARS GROWN ON CALCAREOUS SOIL

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Igor Pasković

2013-12-01

Full Text Available There are limited numbers of scientific publication regarding genotypic differences which exist among olive cultivars concerning nutrient uptake and translocation. For that purpose, the object of our study was to determine possible differences between leaf mineral content of five selected olive cultivars since leaf nutrient analysis is consider being the best method for diagnosing olive tree nutritional status. Plant material was obtained from an olive collection, grown on calcareous soil maintained at Institute of Adriatic Crops and Karst Reclamation, Split, Croatia. The study was conducted with two Croatian autochthonous olive cultivars (“Istarska bjelica”, “Lastovka”, two Italian cultivars (“Pendolino”, “Leccino” and one Spanish cultivar (“Hojiblanca”. Completely randomized design was applied. This study has shown questionably low Mg concentration in all olive cultivars with exception for “Hojiblanca” cultivar. Also, only Croatian cultivars “Istarska bjelica” and “Lastovka” as well as Spanish cultivar “Hojiblanca” recorded sufficient levels of iron leaf mineral content. Regarding other elements studied (P, K, Ca, Zn, Mn, Cu all cultivars were above literature cited thresholds for possible deficiencies. Selected olive cultivars in our experiment demonstrated different nutrient leaf concentration, which is of particular importance for fertilization requirements and fertilization practice in Croatian orchards grown on calcareous soil.

Dual enrollment as a factor for women transitioning into STEM majors in Montana two-year colleges

Science.gov (United States)

Jakes, Penny Jane

The purpose of this non-experimental, descriptive, quantitative study was to describe the impact high school dual enrollment coursework has had on initial enrollment of women with STEM majors in Montana two-year colleges. The study was designed to find whether or not differences existed for access (initial enrollment), persistence (to third semester), and success (associate's degree, certificate, or transfer to a four-year institution within 150% of program length). The literature review highlighted the need for studies to address the issue of few women in science, technology, engineering, and mathematics (STEM) occupations. One goal of dual enrollment in Montana is to ease transitions from high school to college, including underrepresented populations such as women in STEM fields. The scope of this study was to collect, organize, and interpret data to describe the effect of that effort for women enrolling in STEM majors at two-year colleges in Montana. Baseline information established the demographics of young women who participated in dual enrollment in Montana high schools during 2007-2009. Data analysis described results using attributes of gender, dual enrollment, access, persistence, and success for those enrolled in STEM fields. Results indicated more young women than young men take advantage of dual enrollment in high school and more women than men with dual-enrollment credit initially enroll in college. More men than women major in a STEM field and more men persist and graduate within the STEM fields. Data indicated that 221 students enrolled in a Montana two-year college with DE/DC credit during 2007-2009. Of those, eight women chose STEM majors, six persisted to the third semester, and two completed. It is recommended that a mixed-methods study be conducted to give a deeper level of understanding for enrollment trends and career choice. Longitudinal studies should also be conducted as dual enrollment grows within the state of Montana. Further studies

New cultivars of jujube induced by mutation

International Nuclear Information System (INIS)

Hoang, V.T.; Tuynh, N.V.

1989-01-01

Full text: Mutation breeding of jujube (Ziziphus mauritiana Lin.) received attention by the Food Crops Research Institute since 1978. Mutations can be directly released as new cultivars or indirectly as bud grafting source. N-methyl-N-nitroso urea (MNH) was used at a concentration of 0.02-0.04% for 12 h treatment of pre-germinated seeds of different jujube cultivars. Some useful mutants were selected and directly released as new cultivars to farmers. Of the selected mutants two cultivars, ''Ma hong'' and ''Dao tien'', are the most preferable and popularly grown in the country. ''Ma hong'' is a mutant of ''Gia Loc'', a very popular cultivar. Main useful traits of ''Gia Loc'' such as early maturing, two crops of fruits per year are maintained (harvest in December and August). ''Ma hong'' has round-formed, pink rose coloured, sweeter fruits and stable fruit yield in off-season (Aug.) as compared with oval-formed, yellow-coloured and sour fruit of ''Gia Loc''. ''Dao tien'' is a mutant of the local variety ''Thien Phien'' with quite different traits. The original cultivar is late maturing (harvested in Feb.) with one crop of fruit per year and has small fruits (mean wt. of fruit at harvest 20 g). ''Dao tien'' is one month earlier in maturing allowing two crops of fruit per year (harvested in Jan. and Nov.). Fruits are round-formed, bigger (mean wt. of fruit: 25 g) and more tasteful (peach-flavored and brittle). (author)

Morphological diversity in fourteen cultivars Tiron village, Kediri, Indonesia

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Nur Azis Fuad

2016-01-01

Full Text Available Tiron village, Kediri is one of central mangoes in Indonesia. Many cultivar of mangoes encountered at this location. This study aims to look at the diversity of mango cultivars in the Tiron Village, Kediri, Indonesia. Mangoes diversity is based on qualitative and quantitative character of each cultivar. The diversity among cultivar indicated by the standard deviation and variance in the eleven quantitative characters of mango. Mango cultivars categorized by phylogeny morphological characters. The method used for phylogeny analysis is an UPGMA method (unweighted pair group method with arithmetic mean. Phylogenic analysis is based by the qualitative character of the plant. The results showed there were fourteen cultivars of mango in the village of Tiron Kediri have high diversity. Fourteen mango cultivars were categorized four groups. Based on a qualitative character, there are four classes of mango. The first group is the Katul, Podang Urang, and Podang Lumut. The second group is the Gadung, Jaran, Madu, Endog, Pakel, Dodonilo, Ireng, Lanang and Cantek. Santok Kapur into groups to form groups of three and Kopyor fourth. The high diversity in the village mango Tiron Kediri potential for resource in situ germplasm.

NPDES Permit for Soap Creek Associates Wastewater Treatment Facility in Montana

Science.gov (United States)

Under National Pollutant Discharge Elimination System permit number MT-0023183, Soap Creek Associates, Inc. is authorized to discharge from its wastewater treatment facility located in West, Bighorn County, Montana, to Soap Creek.

Molecular characterization of olive cultivars grown in Iraq using ...

African Journals Online (AJOL)

The results of this research confirmed AFLP and SSR to be useful tools in genetic relationships among olive cultivars, in creating a molecular database for Iraqi olive cultivars, in breeding strategies and in correct cultivar identification. Keywords: Olea europaea, genetic diversity, amplified fragment length polymorphism ...

Rendimento de cultivares de tomate para processamento em Goias Yield of processing tomato cultivars in Goiás State, Brazil

Directory of Open Access Journals (Sweden)

Nei Peixoto

1999-03-01

Full Text Available Seis ensaios de competição de cultivares de tomate para processamento industrial foram conduzidos nos municípios goianos de Anápolis, Jataí, Porangatú e Santa Isabel, em 1990, e Anápolis e Porangatu, em 1991. O delineamento experimental utilizado foi de blocos casualizados com quatro repetições, tendo as parcelas 80 plantas em 1990 e 70 em 1991. Em Porangatu, em 1990, as plantas foram mais precoces, florescendo 35 e 41 dias após a semeadura e iniciando-se a colheita 38 dias após a antese. Em Anápolis, também em 1990, a floração iniciou-se de 54 a 60 dias após a semeadura e, a colheita, 46 dias após a antese. As cultivares Petomech, IPA 6 e Topmech Melhorado destacaram-se entre as mais produtivas, apresentando frutos firmes, seguidas das cultivares IPA 5 e Agrocica 72. As cultivares Roma VFN, Rossol e Agrocica 08, por outro lado, revelaram-se produtivas, mas com frutos pouco firmes, sendo impróprias para o transporte a longa distância. Com exceção da cultivar Itaparica, que apresentou melhor desempenho relativo nos ambientes menos favoráveis, os genótipos apresentaram, para rendimento, resposta diretamente proporcional à melhoria do ambiente, caracterizado pela média geral dos genótipos dentro de cada experimento. As cultivares Agrocica 08, IPA 5, Nemadoro e UC 204, foram as mais influenciadas pelas variações do ambiente, enquanto as cultivares Agrocica 33, Calmec VF, IPA 6, Rio Fuego, Santa Adélia, Topmec Melhorado e UC 82 foram as mais estáveis.Six field trials were carried out to evaluate processing tomato cultivars in four counties in the State of Goiás, Brazil (Anápolis, Jataí, Porangatú and Santa Isabel, in 1990, and Anápolis and Porangatu, in 1991. The experiment was conducted as a randomized block design, with four replications, and plots of 80 plants in 1990 and 70 plants in 1991. The plant cycle was shorter in Porangatu (1990, where temperatures were higher than Anápolis. In Porangatu, plant flowering

Resistance and susceptibility of alfalfa (Medicago sativa L.) cultivars to the aphid Therioaphis maculata (Homoptera:Aphididae): insect biology and cultivar evaluation

Institute of Scientific and Technical Information of China (English)

ALEXANDRE DE ALMEIDA E SILVA; ELENICE MOURO VARANDA; JOS(E) RICARDO BAROSELA

2006-01-01

Biology of the aphid Therioaphis maculata was studied on alfalfa (Medicago sativa L.), including four resistant (Mesa-Sirsa, CUF101, Baker and Lahontan) and two susceptible (ARC and Caliverde) alfalfa cultivars, and one of the most cropped Brazilian cultivars, Crioula. Under controlled conditions, antibiosis (i.e., reduced longevity, fecundity and increased mortality of the aphid) was observed mainly on the resistant alfalfa cultivars,except on Lahontan. Crioula seemed to be tolerant to aphids. Present data support geographic limitation usage of cultivars, and we suggest Baker and Mesa-Sirsa as sources of antibiosis,and provide biological information of a tropical T. maculata biotype on alfalfa.

Nematóide de galha em rabanete: suscetibilidade de cultivares e patogenicidade Root-knot nematode: cultivars reaction and damage to radish

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Carlos Eduardo Rossi

2004-03-01

Full Text Available Pesquisaram-se as reações de 11 cultivares de rabanete a Meloidogyne javanica e sua patogenicidade a uma dessas cultivares. No estudo de reações, os tratamentos/cultivares foram 'Comprido Branco', 'Crimson Gigante', 'Ponta Branca', 'Comprido Vermelho', 'Serrano', 'Gigante Wurzburgo', 'Saxa', 'Redondo Vermelho', 'Redondo Gigante', 'Cometo' e 'Akamaru Hatsuka'. Determinaram-se os índices de galhas (IG e de massas de ovos (IMO, o número de nematóides no sistema radicular (NSR e por grama de raiz (NGR e o fator de reprodução (FR 53 dias após a inoculação artificial com 2.000 ovos do parasito. Em outro experimento, avaliaram-se os efeitos de três densidades populacionais do nematóide [0, 500 (nível populacional baixo e 10.000 (nível populacional alto ovos/planta] sobre as massas frescas e secas de túberas e de parte aérea da cultivar 'Redondo Gigante', 39 dias após a inoculação. Os resultados mostraram que todas as cultivares permitiram a reprodução de M. javanica, sendo portanto consideradas suscetíveis. Valores de IG e IMO foram maiores ou iguais a 2,5 e os de FR, maiores do que 8,0 para todas as cultivares estudadas. O parasito causou diminuição significativa nas massas frescas e secas de túberas e de partes aéreas nos dois níveis populacionais estudados comparados com o controle não inoculado. As médias dos tratamentos contendo níveis populacionais baixo e alto do nematóide também diferiram estatisticamente entre si, comprovando-se, assim, a sua ação patogênica sobre a cultivar avaliada.Experiments were conducted under greenhouse conditions to determine the reaction of eleven radish (Raphanus sativus cultivars to Meloidogyne javanica and the pathogenicity of this nematode to a previously selected cultivar. The cultivars tested were 'Comprido Branco', 'Crimson Gigante', 'Ponta Branca', 'Comprido Vermelho', 'Serrano', 'Gigante Wurzburgo', 'Saxa', 'Redondo Vermelho', 'Redondo Gigante', 'Cometo' and 'Akamaru

Effect of Different Levels of Sodium Chloride on Germination Characteristics of 20 Cultivars of Bread and Durum Wheat20 Cultivars of Bread and Durum Wheat

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E Bijanzadeh

2011-01-01

Full Text Available Abstract Salt stress is a major stress influencing wheat seedling establishment. A laboratory experiment was conducted to evaluate the response of 20 cultivars of wheat to two levels of salinity (8 and 16 dS/m NaCl, at the College of Agriculture, Shiraz University, Shiraz, Iran in 2008. Maximum root length was obtained in Dabira (5.73 mm at 16dS/m salinity level. In control, durum wheat cultivars including D81-17, Yavaros, D82-16, D79-15 and Taro3 had the maximum root length compared to bread wheat, however, with increasing salinity level to 16dS/m, minimum root length was observed in D82-16 (0.3 mm. In all cultivars, with increasing salinity level, shoot length was decreased and minimum shoot length was observed in D82-16 and D79-15. Under control conditions, Taro 3 cultivar had maximum seedling dry weight (108.6 mm, however, at 8 and 16 dS/m salinity levels, seedling dry weight of this cultivar was decreased to 92.33 and 78.43 mg, respectively. All seeds (100% were germinated in D82-16, Taro3, Bolani Cross, and Chamran cultivars under 16 dS/m but in Marvdasht cultivar, seed germination percentage under 8 and 16 dS/m reached to 65 and 50%, respectively. Shiraz (10.8 seeds/day, Adl Cross(10 seeds/day, and Bolani Cross (9.1 seeds/day had maximum germination rate under 16 dS/m salinity level. Differences among wheat cultivars also found in germination stress index (germination rate under stress divided by germination rate under control and Shiraz, Adl Cross and Bolani Cross had maximum germination stress index, while Yavaros and D82-16 had minimum germination stress index. Furthermore, with increasing salinity level, different responses were observed among wheat cultivars in root and shoot length, germination rate and germination stress index which demonstrated the genetic diversity among wheat cultivars. It appeared that durum wheat cultivars, compared to bread wheat cultivars, had lower germination stress index and germination rate. Among what

Digital Learning Compass: Distance Education State Almanac 2017. Montana

Science.gov (United States)

Seaman, Julia E.; Seaman, Jeff

2017-01-01

This brief report uses data collected under the U.S. Department of Education's National Center for Educational Statistics (NCES) Integrated Postsecondary Education Data System (IPEDS) Fall Enrollment survey to highlight distance education data in the state of Montana. The sample for this analysis is comprised of all active, degree-granting…

Desempenho de cultivares de alface no Estado do Acre Performance of lettuce cultivars in the State of Acre, Brazil

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Francisco J. da S. Lédo

2000-11-01

Full Text Available Devido às condições ambientais verificadas no estado do Acre, caracterizado pela ocorrência de temperaturas elevadas e alta precipitação, as cultivares tradicionalmente utilizadas pelos produtores apresentam baixo rendimento e qualidade. O objetivo do presente trabalho foi avaliar o comportamento das novas cultivares de alface disponíveis no mercado, em termos de características agronômicas e rendimento, nas condições edafoclimáticas de Rio Branco, Acre. Para isso foram realizados dois ensaios no campo experimental da Embrapa Acre, em um solo do tipo Argissolo Vermelho-Escuro, textura argilosa. O primeiro de maio a julho de 1996 (período seco e o segundo de dezembro de 1996 a fevereiro de 1997 (período chuvoso. Foram avaliadas as cultivares Babá de Verão, Brisa, Carolina AG-576, Elisa, Lucy Brown, Marisa AG-216, Piracicaba 65, Regina 71, Tainá, Simpson, Vanessa e Verônica, sendo que 'Regina 71' e 'Elisa' foram incluídas apenas no ensaio do período seco. O delineamento experimental foi o de blocos casualizados, com três repetições. No período seco, as cultivares Simpson, Lucy Brown e Regina 71 apresentaram os maiores pesos médios (373; 362 e 341 g, respectivamente e produções comerciais de 49,8; 48,3 e 45,5 t/ha, respectivamente. Em geral, as cultivares dos tipos lisa sem cabeça e lisa com cabeça apresentaram maior índice de ataque de nematóide (Meloidogyne javanica quando comparadas às do tipo crespa. No ensaio realizado no período chuvoso, as cultivares Marisa AG-216, Verônica, Lucy Brown, Brisa, Tainá e Piracicaba-65 apresentaram os maiores pesos médios e produções comerciais. Entretanto, as médias obtidas foram bem inferiores às verificadas no ensaio do período seco, variando de 164 a 198 g para o peso médio, e 21,9 a 25,9 t/ha para produção comercial. Dentre as cultivares avaliadas no período seco, Regina 71 (lisa, sem cabeça e Carolina AG-576 (lisa, com cabeça destacaram-se entre as do tipo

Prevalence and reasons for initiating use of electronic cigarettes among adults in Montana, 2013.

Science.gov (United States)

Schmidt, Lisa; Reidmohr, Alison; Harwell, Todd S; Helgerson, Steven D

2014-11-20

We used data from the 2013 Montana Adult Tobacco Survey to estimate the prevalence of electronic cigarette (e-cigarette) use and reasons for initiation among Montana adults. More than 1 in 10 (11.2%, 95% confidence interval [CI], 9.1%-13.2%) adults reported ever using e-cigarettes, and 1.3% (95% CI, 0.7%-1.9%) reported current use. Most respondents reported "trying something new" (64%) or "trying to quit or reduce cigarette use" (56%) as a reason for initiating use. Ongoing surveillance of these addictive products is needed.

Stem rust seedling resistance genes in Ethiopian wheat cultivars ...

African Journals Online (AJOL)

Thirty durum wheat (19 commercial cultivars and 11 breeding lines) and 30 bread wheat (20 commercial cultivars and 10 breeding lines) were tested for gene postulation. Stem rust infection types produced on wheat cultivars and breeding lines by ten Pgt races was compared with infection types produced on 40 near ...

Caracterização físico-química de frutos de quatro cultivares de quiabo Physical and chemical characteristics from fruits of four okra cultivars

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Wagner F. da Mota

2005-07-01

Full Text Available Efetuou-se a caracterização físico-química dos frutos de quatro cultivares de quiabo neste estudo. O delineamento utilizado foi de blocos casualizados, sendo os tratamentos constituídos pelas cultivares Amarelinho, Red Velvet, Star of David e Mammoth Spinless, com cinco repetições. Na maturidade comercial os frutos da cultivar Star of David tiveram maior diâmetro, peso fresco total e teor de matéria seca, menor comprimento, teor de umidade e de vitamina C comparado com as demais cultivares. A cultivar Red Velvet teve o menor diâmetro, peso fresco, teor de matéria seca, açúcares redutores e teores de clorofilas a, b e total, e maior teor de umidade e vitamina C. Frutos da cultivar Mammoth Spinless apresentaram os maiores teores de clorofilas a, b e total. A cultivar Amarelinho teve maior comprimento e menores teores de clorofila, a, b e total. As cultivares Amarelinho e Mammoth Spinless apresentaram maiores teores de açúcares redutores.In an experiment some physical and chemical characteristics of four okra cultivars were evaluated. The experimental design was of randomized blocks, where the treatments were the cultivars Amarelinho, Red Velvet, Star of David and Mammoth Spinless with five replications. At commercial maturity fruits of the cultivar Star of David presented the largest diameter, total fresh matter, content of dry matter, smallest length, content of water and vitamin C in comparison to the other cultivars. The cultivar Red Velvet presented the smallest diameter, total fresh matter, content of dry matter, reducing sugars and content of chlorophyll a, b and total, but the largest content of water and vitamin C. The cultivar Amarelinho produced the longest fruits and the smallest content of chlorophyll a, b and total. The cultivars Amarelinho and Mammoth Spinless showed higher contents of total reducing sugars.

Polymorphic microsatellites of analysis in cultivars of taro Análise polimórfica por microssatélites em cultivares de taro

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Raquel SC Nunes

2012-03-01

Full Text Available Taro (Colocasia esculenta is a tuberous plant belonging to the Araceae family whose tuber is the 14th most consumed food crop in the world. Characterized as an unconventional vegetable, taro is grown in Brazil as a subsistence crop, but in recent years began to gain commercial importance, especially in the states of Espirito Santo, Minas Gerais and Rio de Janeiro. To avoid loss of genetic diversity of the local varieties traditionally grown in Brazil a core collection for taro germplasm has been developed by the Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural do estado do Espirito Santo (Incaper. The aim of this study was to perform a molecular characterization of the seven regional core collections. Genetic diversity of the cultivars was investigated by using SSR (Simple Sequence Repeats polymorphisms, in seven loci (Xuqtem55, Xuqtem73, Xuqtem84, Xuqtem88, Xuqtem91, Xuqtem97 and Xuqtem110. Genetic diversity of the cultivars, based on the seven microsatellite alleles, was evaluated by using the software GelCompar II, showed that the loci Xuqtem73, Xuqtem88 and Xuqtem110 were the most informative, featuring 7, 10 and 8 alleles, respectively, a percentage of cultivars with polymorphic alleles of 85, 57 and 100% and identical PIC of 0.91. Based on Xuqtem110 locus analysis, the seven cultivars were grouped in two clusters. Chinês Regional Incaper cultivar was originated from Chinês cultivar which originated the São Bento cultivar, corroborating previous results. Macaquinho and Chinês cultivars were shown to be the primitive ones originating the allelic collections found in the states of Mato Grosso do Sul and Espirito Santo.O taro (Colocasia esculenta é uma hortaliça da família Araceae cujo rizoma é o décimo quarto alimento vegetal mais consumido no mundo. Caracterizado como uma hortaliça não convencional, o taro é cultivado no Brasil como uma cultura de subsistência, mas nos últimos anos começou a ser

Evaluation of Garlic Cultivars for Polyphenolic Content and Antioxidant Properties

Science.gov (United States)

Cheng, Siqiong; Li, Panpan; Du, Junna; Chang, Yanxia; Meng, Huanwen

2013-01-01

Two phenolic compound parameters (total phenolic and flavonoid contents) and 5 antioxidant parameters (DPPH [2, 2-diphenyl-1-picrylhydrazyl] radical scavenging activity, HRSC (hydroxyl radical scavenging capacity), FRAP (ferric ion reducing antioxidant power), CUPRAC (cupric ion reducing antioxidant capacity), and MCA (metal chelating activity) were measured in bulbs and bolts of 43 garlic cultivars. The bulbs of cultivar ‘74-x’ had the highest phenolic content (total phenolic, flavonoids) and the strongest antioxidant capacity (DPPH, FRAP, and CUPRAC), followed by bulbs of cultivar ‘Hanzhong purple’; the bulbs of cultivar ‘Gailiang’ had the lowest phenolic content and antioxidant capacity (FRAP, CUPRAC, MCA). The bolts of ‘Hanzhong purple’ also had higher phenolic content. Principal components analysis (PCA) separated the cultivars into 3 groups according to phenolic and flavonoid contents and strength of antioxidant activity. The first group had higher HRSC, FRAP, and flavonoid content; the second group had higher total phenolic content and MCA; some cultivars in the third group had higher HRSC and FRAP. All 8 test garlic bulb extracts successfully prevented Human Vascular Endothelial Cell death and significantly prevented reactive-oxygen species (ROS) formation in oxidative stress model, in which cultivar ‘74-x’ had highest protection capability, following by cultivar ‘Hanzhong purple’, and the bulbs of cultivar ‘No. 105 from Korea’ had the lower protection capability against cell death and ROS formation. The protection capability in vivo of these garlic cultivars was consistent with their phenolic content and antioxidant capacity. PMID:24232741

Al-Dulimi and Montana Management Inc. v. Switzerland / Stefan Kadelbach

Index Scriptorium Estoniae

Kadelbach, Stefan

2016-01-01

Euroopa Inimõiguste Kohtu lahendist asjas Al-Dulimi ja Montana Management Inc vs. Šveits, mis puudutas ÜRO julgeolekunõukogu resolutsiooni, millega pandi riikidele kohustus külmutada viivitamatult ka Iraagi vanemametnikele või nende äriühingutele kuuluv vara

Secondary metabolism responses in two Pisum sativum L. cultivars ...

African Journals Online (AJOL)

Both cultivars were grown in the absence or presence of Fe with the addition of bicarbonate for twelve days. Higher concentrations of phenols and flavonoids were observed in Fe-deficient tissues of both cultivars; however, the increase was greater in the tolerant cultivar than in the susceptible one. The activity of shikimate ...

Assessment of undiscovered continuous oil and gas resources in the Heath Formation, central Montana and western North Dakota, 2016

Science.gov (United States)

Drake, Ronald M.; Schenk, Christopher J.; Klett, Timothy R.; Le, Phuong A.; Leathers, Heidi M.; Brownfield, Michael E.; Finn, Thomas M.; Gaswirth, Stephanie B.; Marra, Kristen R.; Tennyson, Marilyn E.

2017-06-07

Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 884 million barrels of oil and 106 billion cubic feet of gas in the North-Central Montana and Williston Basin Provinces of central Montana and western North Dakota.

Influência de cultivares de arroz e épocas da adubação nitrogenada nas relações de interferência da cultura com cultivar simulador de infestação de arroz-vermelho Influence of rice cultivars and nitrogen fertilizer timing on the interference relationships between the crop and cultivar simulating red rice infestation

Directory of Open Access Journals (Sweden)

D. Agostinetto

2004-06-01

Full Text Available O objetivo deste trabalho foi avaliar os efeitos de cultivares de arroz irrigado e de épocas de adubação nitrogenada durante o ciclo da cultura sobre a habilidade competitiva do cereal em relação ao cultivar EEA 406, usado como simulador da planta daninha arrozvermelho. Para isso, conduziu-se experimento em campo, na estação de crescimento 2001/02. Os tratamentos, dispostos em esquema fatorial, constaram de cultivares de arroz (BRS-38 Ligeirinho, IRGA 417 e BR-IRGA 409, épocas de aplicação do nitrogênio (N (100% do N na semeadura, 50% do N na semeadura mais 50% no início da diferenciação da panícula (IDP, 100% no IDP e testemunha sem o adubo e populações do cultivar simulador do arroz-vermelho. Para relacionar as perdas de produtividade de grãos de arroz com populações do cultivar simulador, utilizou-se o modelo de regressão da hipérbole retangular, ajustado de modo independente para os fatores estudados. Verificou-se que a época de aplicação do N influenciou na habilidade competitiva dos cultivares de arroz. Cultivares de ciclo muito curto e curto apresentaram maior habilidade competitiva com o cultivar simulador, quando a adubação foi realizada na semeadura, enquanto o cultivar de ciclo médio se beneficiou do fracionamento da adubação na semeadura e no IDP.The objective of this study was to evaluate the effects of flooded rice cultivars and timings of nitrogen fertilizer application during the crop cycle on the competitive ability of this cereal in relation to EEA 406 cultivar, used as a mimicker of red rice. Thus, a field experiment was carried out during the 2001/02 growing season. The treatments were arranged in a factorial design,comprising the rice cultivars (BRS-38 Ligeirinho, IRGA 417, and BR-IRGA 409, nitrogen (N application timings (100% at sowing, 50% at sowing plus 50% at the beginning of panicle differentiation (BPD, 100% at BPD, and check without fertilizer, and densities of the mimicker cultivar. In

Production of cultivars of Anthurium andraeanum in Acorizal-MT conditions

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Carmen Lúcia Ferreira Fava

2014-11-01

cover with sugarcane bagasse. The cultivars Eidibel and Supremo were the most productive with 2,4 stalks/month/plant; the bigger spathe was obtained by the cultivar Brasão with 17,2 cm of width and 12,6 cm length; and the cultivar Sonata presents the bigger spadix with 7,6 cm. The seven cultivars of anthurium, as a cut flower, develop and bloom satisfactorily.

The Montana Wild Virus Hunt | NIH MedlinePlus the Magazine

Science.gov (United States)

... on a combination of techniques from bioinformatics, genetics, biochemistry, and structural biology to understand the mechanisms that bacteria use to defend themselves from viral infection. What is the Montana Wild Virus Hunt? The aim of this project is to engage high school students and their ...

Effectiveness of Written Materials in a Rehabilitative Program for Female Offenders: A Case Study at the Montana Women's Prison

Science.gov (United States)

Dillon, Laura; Colling, Kyle

2010-01-01

This case study of the Therapeutic Community Program at Montana Women's Prison investigates the relationship between inmate reading levels and the self-help materials used for rehabilitative purposes within prison settings. The Therapeutic Community Handbook, published by the Montana Department of Corrections, is used as the primary method of…

Invasive Species Biology, Control, and Research. Part 1: Kudzu (Pueraria montana)

National Research Council Canada - National Science Library

Guertin, Patrick J; Denight, Michael L; Gebhart, Dick L; Nelson, Linda

2008-01-01

..., and damage to equipment and structures. Of the 11 plant species (or groups) identified by installations as uncontrolled vegetation, six were invasive plants, of which the two invasive plants most commonly identified were Kudzu (Pueraria montana...

Oil and fatty acid composition of peanut cultivars grown in Pakistan

International Nuclear Information System (INIS)

Hassan, F.; Ahmed, M.

2012-01-01

Quality and flavor of edible peanuts and its products are affected by fatty acid composition of oil. The information related to chemical composition of Peanut grown in the country are scarce, therefore, the present investigation was designed to determine the oil and fatty acid composition of some commonly grown peanut cultivars in Pakistan. Seven Peanut cultivars were grown during 2008 in randomized complete block design replicated thrice. The tested cultivars differed significantly for oil content which ranged from 49.83 to 53.06% on dry weight basis, thus showing differences of 7% among cultivars. The saturated fatty acids (Palmetic and Stearic acid) in different cultivars ranged between 9.95 to 10.79% and 1.63 to 2.19%, respectively. Differences among cultivars for oleic acid exhibited significance which ranged between 49.34 to 54.83%. Similarly, cultivars differed statistically for linoleic ac id which showed a range of 28.99 to 34.23%, thus depicted difference of 7%. Significant differences among tested cultivars may be attributed to the place of origin of particular cultivar. An inverse relationship was exhibited between oleic and linoleic acid, similar to other edible oils. (author)

Testing transferability of willingness to pay for forest fire prevention among three states of California, Florida and Montana

Science.gov (United States)

John B. Loomis; Hung Trong Le; Armando Gonzalez-Caban

2005-01-01

The equivalency of willingness to pay between the states of California, Florida and Montana is tested. Residents in California, Florida and Montana have an average willingness to pay of $417, $305, and $382 for prescribed burning program, and $403, $230, and $208 for mechanical fire fuel reduction program, respectively. Due to wide confidence intervals, household WTP...

MONTANA PALLADIUM RESEARCH INITIATIVE

Energy Technology Data Exchange (ETDEWEB)

Peters, John; McCloskey, Jay; Douglas, Trevor; Young, Mark; Snyder, Stuart; Gurney, Brian

2012-05-09

Project Objective: The overarching objective of the Montana Palladium Research Initiative is to perform scientific research on the properties and uses of palladium in the context of the U.S. Department of Energy's Hydrogen, Fuel Cells and Infrastructure Technologies Program. The purpose of the research will be to explore possible palladium as an alternative to platinum in hydrogen-economy applications. To achieve this objective, the Initiatives activities will focus on several cutting-edge research approaches across a range of disciplines, including metallurgy, biomimetics, instrumentation development, and systems analysis. Background: Platinum-group elements (PGEs) play significant roles in processing hydrogen, an element that shows high potential to address this need in the U.S. and the world for inexpensive, reliable, clean energy. Platinum, however, is a very expensive component of current and planned systems, so less-expensive alternatives that have similar physical properties are being sought. To this end, several tasks have been defined under the rubric of the Montana Palladium Research Iniative. This broad swath of activities will allow progress on several fronts. The membrane-related activities of Task 1 employs state-of-the-art and leading-edge technologies to develop new, ceramic-substrate metallic membranes for the production of high-purity hydrogen, and develop techniques for the production of thin, defect-free platinum group element catalytic membranes for energy production and pollution control. The biomimetic work in Task 2 explores the use of substrate-attached hydrogen-producing enzymes and the encapsulation of palladium in virion-based protein coats to determine their utility for distributed hydrogen production. Task 3 work involves developing laser-induced breakdown spectroscopy (LIBS) as a real-time, in situ diagnostic technique to characterize PGEs nanoparticles for process monitoring and control. The systems engineering work in task 4

CULTIVAR RELEASE-BRS 217 Flora: Early-maturing soybean cultivar

Directory of Open Access Journals (Sweden)

Plínio Itamar de Mello de Souza

2008-01-01

Full Text Available The soybean (Glycine max L. Merr. cultivar BRS 217 Flora was developed by Embrapa and released forproduction in the states of Goiás, Minas Gerais, Bahia, Mato Grosso and the Distrito Federal, Brazil. It is resistant to stemcanker, frog-eye leaf spot, bacterial pustule, and partially resistant to powdery mildew.

Variation between cut chrysanthemum cultivars in response to suboptimal temperature

NARCIS (Netherlands)

Ploeg, van der A.; Kularathne, R.J.K.N.; Carvalho, S.M.P.; Heuvelink, E.

2007-01-01

To breed for more energy-efficient cut chrysanthemum (Chrysanthemum morifolium Ramat.) cultivars it is important to know the variation of the temperature response existing in modern cultivars. In a greenhouse experiment with 25 chrysanthemum cultivars, a significant variation was observed in

Compatibilidade de enxertia de cultivares de marmeleiros com pereiras Compatibility of pear cultivars on quinces rootstocks

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Zeni Fonseca Pinto Tomaz

2009-12-01

Full Text Available A insuficiência de estudos sobre compatibilidade de porta-enxertos é um dos fatores limitantes ao desenvolvimento da cultura da pereira (Pyrus sp. no Brasil. A utilização do marmeleiro (Cydonia oblonga como porta-enxerto para a cultura da pereira apresenta inúmeras vantagens, entre as quais a redução do vigor e a rápida entrada em produção; todavia, sua combinação com algumas cultivares copa apresenta problemas de incompatibilidade de enxertia, podendo ocasionar a ruptura do caule das plantas no pomar. Objetivou-se, neste trabalho, avaliar a compatibilidade de enxertia de algumas cultivares de marmeleiros ('Quince C' e 'Adams' com pereiras ('Packham's Triumph' e 'Kieffer'. As variáveis analisadas foram: diâmetro da secção do tronco no ponto de enxertia, 5 cm abaixo e 5 cm acima do ponto de enxertia, diferença do diâmetro entre porta-enxerto e copa, altura das plantas, volume e massa seca da copa e raízes. Além disso, efetuou-se a observação da conexão vascular no ponto de enxertia através da imersão da base das plantas (abaixo do ponto de enxertia, em solução corante de Ácido Fuccínico 0,08%. Concluiu-se que a cultivar 'Packham's Triumph'apresenta compatibilidade de enxertia com o marmeleiro cultivares 'Adams'e 'Quince C', enquanto o híbrido 'Kieffer' apresentou sintomas morfológicos de incompatibilidade de enxertia com o marmeleiro cultivares 'Quince C' e 'Adams'.The lack of studies on compatibility of pear cultivars and rootstocks is one of the limiting factors on the development of the pear crop in Brazil. The use of quinces as rootstocks for pear cultivars has several advantages, among them the reduction in vigor and earlier bearing trees, however, its combination with some scions cultivars results in problems of incompatibility , such as lost of trees of the orchard due to break of the graft union. The objective of this study was to determine the compatibility between pears cvs. Packham's Triumph and Kieffer

Performance of different tomato cultivars under organic and inorganic regimes

International Nuclear Information System (INIS)

Ali, I.; Khattak, A. M.; Ali, M.; Ullah, K.

2015-01-01

To study the performance of different tomato cultivars under organic and inorganic regimes an experiment was conducted at New Developmental Farm, The University of Agriculture, Peshawar, Pakistan during the summer 2013-14. The experiment was laid out in RCBD with split plot arrangement having four replications. Organic regimes (FYM, poultry manure and mushroom compost) and inorganic (NPK) regimes were allotted to main plot, while cultivars (Roma VF, Roma, Super Classic, Bambino and Rio Grande) were subjected to sub plots. Organic and Inorganic regimes significantly (P ≤ 0.01) influenced all the studied attributes of tomato cultivars. Among different cultivars, Roma gave maximum plant survival (93.8 percentage), number of leaves plant (84.1), number of flower inflorescence (5.4), number of fruits inflorescence (4.3), number of fruit plant (25.4), fruit size (63.9 cm) fruit weight plant (9.1 kg) and total yield (22.9 t ha). However, it was closely followed by cultivar Rio Grande for number of leaves plant (79.6), number of flower inflorescence (5.1), number of fruits inflorescence (4.0) and number of fruits plant (24.9). Cultivar Super Classic produced minimum number of leaves plant (67.7), flower inflorescence (4.8), fruit size (60.6 cm), fruit weight plant (8.6 kg) and total yield (21.7 t ha). Similarly, highest plant survival (90.0 percentage), number of flower inflorescence (5.1), number of fruits inflorescence (4.0), number of fruit plant (25.4), fruit size (62.4 ml), fruit weight plant (8.90 kg) and total yield (22.9 t ha) were recorded in plants provided with organic conditions Roma cultivar performed better than other cultivars under the agro climatic condition of Peshawar followed by cultivar Rio Grande. Therefore, organic tomato production, and these two cultivars are recommended to be grown in Peshawar area. (author)

On-site energy consumption at softwood sawmills in Montana

Science.gov (United States)

Dan Loeffler; Nathaniel Anderson; Todd A. Morgan; Colin B. Sorenson

2016-01-01

Total on-site energy requirements for wood product manufacturing are generally not well understood or publicly available, particularly at subregional scales, such as the state level. This article uses a mail survey of softwood sawmills in Montana to develop a profile of all on-site energy consumption. Energy use is delineated by fuel type on a production basis...

Mutation breeding of autotetraploid Achimenes cultivars

International Nuclear Information System (INIS)

Broertjes, C.

1976-01-01

Colchicine-induced autotetraploids of three Achimenes cultivars were irradiated with X-rays or fast neutrons. The results were compared, in one cultivar, with those of the irradiated diploid form. The mutation frequency after irradiation of the autotetraploid was a 20-40 fold higher as compared to the corresponding diploid. These results may open new possibilities for mutation breeding, though they are hard to explain. Several promising mutants were selected. (author)

Seed storage effects on germination for two forage kochia cultivars

Science.gov (United States)

The cultivar ‘Snowstorm’ forage kochia was released by the USDA-ARS in 2012. It is a synthetic cultivar selected for stature, forage production, and adaptation to semiarid environments. Similar to the earlier released (1984) ‘Immigrant’ cultivar it can increase rangeland productivity magnitudes when...

Intraspecific responses of 188 rice cultivars to enhanced UVB radiation

International Nuclear Information System (INIS)

Dai, Q.; Peng, A.; Chavez, A.Q.; Vergara, B.S.

1994-01-01

Phytotron studies were conducted to determine the intraspecific variation in sensitivity of rice (Oryza sativa L.) to enhanced UVB and to test the hypothesis that rice cultivars originating from regions with higher ambient UVB radiation are more tolerant to enhanced UVB. Out of the 188 rice cultivars (from various rice growing regions and ecosystems) tested, 143 had significantly reduced plant height, 52 had smaller leaf area, 61 had lower plant dry weight and 41 had less tiller number under elevated UVB radiation (13.0 kJ m −2 day −1 ) for 3 weeks. Six cultivars showed significant positive growth response to enhanced UVB radiation, although the mechanism is not clear at present. These six cultivars were from the summer rice crop of Bangladesh and from high elevation rice areas where prevailing UVB radiation is most likely to be greater. However, there was no correlation between the dry matter changes under enhanced UVB and the ambient UVB level at the origin of the cultivar across the 188 cultivars tested. Therefore, cultivars originating from regions with higher ambient UVB are not necessarily more tolerant to enhanced UVB radiation. (author)

Bread-Making Quality of Standard Winter Wheat Cultivars

OpenAIRE

Ćurić, Duška; Novotni, Dubravka; Bauman, Ingrid; Krička, Tajana; Jukić, Željko; Voća, Neven; Kiš, Darko

2009-01-01

The purpose of this study was to define an impact of the cultivar, year and cultivation area of the standard Croatian winter wheat on the bread-making quality. The bread-making quality of cultivars ‘Divana’, ‘Žitarka’ and ‘Sana’ from the crop years 1998, 2000, 2002, 2004 and 2006, and from Zagreb and Osijek location was analyzed. Wheat from the cultivar tests cultivated under the same agro technological conditions was used for this testing. The tested winter wheat bread-making quality primari...

banana cultivar distribution in rwanda abstract résumé

African Journals Online (AJOL)

Administrator

Gisubi (ABB), Gros Michel (AAA), and 'Kamaramasenge'. (AAB) were the most abundant. Farms with a higher proportion of Gisubi contained fewer other cultivars. Also, new cultivars were identified and these should be added to the National Banana germplasm collection. Key Words: Cultivars, diversity indexes, germplasm, ...

Abordagem Bayesiana das curvas de crescimento de duas cultivares de feijoeiro Bayesian approach in the growth curves of two cultivars of common bean

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Sebastião Martins Filho

2008-09-01

Full Text Available Neste trabalho foi utilizada a metodologia Bayesiana para ajustar o modelo não-linear logístico para dados de crescimento de duas cultivares de feijoeiro, "Neguinho" e "Carioca". O delineamento experimental utilizado foi o inteiramente casualizado, com vinte repetições, no esquema de parcelas subdivididas, sendo que os tratamentos principais foram constituídos pelas cultivares e as subparcelas foram constituídas por 17 períodos de avaliações, do plantio até aos 85 dias. A metodologia permitiu comparar as curvas de crescimentos sem utilizar a teoria assintótica e estes resultados mostraram um maior incremento em altura para a cultivar "Carioca".In this paper the Bayesian methodology was used to fit the logistic nonlinear model to growth data of two common bean cultivars, 'Neguinho' and 'Carioca'. The experiment was a split plot under a completely randomized design with twenty replicates, being the main treatments constituted by cultivars and the sub plots constituted by seventeen periods of evaluations, from planting to 85 days. The methodology allowed comparing the growth curves without using the asymptotic theory, and these results showed a larger height increment for the 'Carioca' cultivar.

The role of gut bacteria in Schmallenberg virus transmission by Culicoides biting midges

Science.gov (United States)

When an arbo-virus enters a vector it will first enter the gut system of this insect before entering cells of the insect body. Once in the gut-system, arbo-viruses and gut microbiota can interact with each other. We wondered if different gut bacterial communities could influence virus infection of b...

Agronomic performance of watermelon cultivars in the Cerrado region of Boa Vista, Roraima = Desempenho agronômico de cultivares de melancia no cerrado de Boa Vista, Roraima

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Ignácio Lund Gabriel da Silva Carmo

2015-10-01

Full Text Available Production of the watermelon is important in all regions of Brazil. However, productive and qualitative information for fruit of different cultivars grown in the same environment is still scarce, especially in the State of Roraima, a fact that makes it necessary to carry out studies in order to meet this need. As a result, this study aimed to evaluate the agronomic performance of watermelon cultivars produced in the Cerrado at Boa Vista, Roraima. The experiment was conducted at the Agua Boa Experimental Farm of Embrapa Roraima, from December 2013 to February 2014. The experimental design was of randomised blocks (DBC, with six replications. The treatments comprised six watermelon cultivars: Verena, Explore, Elisa, Juliane, Crimson Sweet and Crimson Sweet Super, for which the productive, physical, chemical and physicochemical characteristics of the fruit were evaluated. There was no difference between cultivars in yield, number of fruit ha-1 or the number of fruit with a weight of between 6 and 9 kg. The cultivars differed as to physical characteristics (weight, size and number of seeds per fruit. There were differences between cultivars for all the chemical and physicochemical characteristics of the fruit. The cultivar Elisa displayed the highest levels for total soluble solids (12.58 °Brix. Fruits of the cultivars Explore and Crimson Sweet Super showed the greatest ratio between total soluble solids and titratable acidity. The fruits of the cultivars Explore and Elisa had the highest pH. The conditions of soil and climate in the Cerrado at Boa Vista favour the productive and qualitative characteristics of the cultivars being analysed. = A produção de melancia é consolidada em todas as regiões do Brasil. Porém, as informações sobre produtividade e qualidade dos frutos, de diferentes cultivares no mesmo ambiente, ainda são tímidas, sobretudo em Roraima, tornando necessária a realização de estudos para suprir essa carência. Objetivou

Resposta de cultivares de algodoeiro a subdoses de glyphosate Response of cotton cultivars to reduced rates of glyphosate

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O.M. Yamashita

2005-12-01

Full Text Available Avaliou-se a resposta de nove cultivares de algodoeiro, de importância econômica no Estado do Mato Grosso, quanto à intoxicação causada por subdoses de glyphosate. Os cultivares de algodoeiro utilizados foram Fabrika, Makina, ITA-90, FM 986, FM 966, Delta Opal, BRS Facual, Antares e Coodetec 407. As plantas foram cultivadas em tubetes preenchidos com substrato de solo e mantidas em casa telada, tendo recebido a aplicação do glyphosate aos 20 dias após a emergência, época em que apresentavam quatro folhas verdadeiras. As subdoses de glyphosate, simulando deriva, foram de 270 e 540 g ha-1. Também foi utilizada testemunha, sem aplicação do herbicida, para efeito de comparação. Foram realizadas avaliações semanais até 42 dias após a aplicação dos tratamentos (DAA, período em que também foi tomada a altura das plantas. Os sintomas visuais de intoxicação iniciaram-se aos 3 DAA, caracterizados pelo amarelecimento das pontas das folhas mais novas, seguido de murchamento do ápice das plantas. Na dose de 270 g ha-1 esses sintomas foram de baixa intensidade, mas a 540 g ha-1 causaram, na maioria dos casos, toxidez "preocupante" a "muito alta". Os cultivares BRS Facual e FM 986 mostraram-se os mais suscetíveis. A altura das plantas foi mais afetada quando se aplicou a menor dose de glyphosate. Houve recuperação de todos os cultivares tratados com 270 g ha-1 de glyphosate até os 42 DAA. Quando tratados com 540 g ha-1 de glyphosate, os cultivares Fabrika, Coodetec 407, BRS-Facual e ITA-90 foram mais sensíveis, apresentando redução de altura entre 84 e 90% aos 42 DAA. Os cultivares menos sensíveis na dose de 270 g ha-1 de glyphosate não foram os mesmos para a dose de 540 g ha-1.The response of nine cotton cultivars economically important in the state of Mato Grosso was evaluated in relation to the toxicity caused by reduced rates of glyphosate. The cotton cultivars used were Fabrika, Makina, ITA-90, FM 986, FM 966, Delta Opal

Quantification of energy from early cultivars of sugarcane; Quantificacao da energia a partir de cultivares precoces de cana-de-acucar

Energy Technology Data Exchange (ETDEWEB)

Santin, Ivan; Silva Neto, Helio F. da; Tasso Junior, Luiz Carlos; Marques, Diogo; Marques, Marcos O. [Universidade Estadual Paulista (FCAV/UNESP), Jabotical, SP (Brazil). Fac. de Ciencias Agrarias e Veterinarias. Dept. de Tecnologia], E-mail: santinivan@hotmail.com

2010-07-01

The success of energy generation from biomass of sugarcane is related to the amount of bagasse produced and the improvements of the equipment involved in the thermal balance of the sugarcane industrialization process. In this sense, the objective of this study was to quantify the production and productivity of bagasse in different early cultivars of sugarcane. The experimental design was a randomized block design with 6 treatments (cultivars) and 3 replications. The experiment was carried out at FCAV/UNESP-Jaboticabal. To calculate the productivity, the number of stems was counted in a meter, the weight of stems was obtained. The percentage of fiber for each cultivar was determined by calculating the estimated production and productivity of mulch. Using these values to estimate the potential number of people who would benefit from the energy generated by the combustion of bagasse an evolving process of cogeneration power. Cultivar CTC 16 (best results), showed the highest value of TCH (100.66 t ha{sup -1}), production of bagasse (315.66 kg t {sup -1}), any product residue (32.00 t ha{sup -1}) and people who could benefit (9.33 x 106). The Cultivars SP91-1049 and IACSP93-3046 presented the results less satisfactory. (author)

Molecular characterisation of radish cultivars

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Sara Michelly Cruz

Full Text Available The radish has been gaining importance in the Brazilian market due to its use as a green manure and cover crop, and also due to its potential for the production of biodiesel, however there are only two registered cultivars, which are morphologically very similar. Determination of genetic purity is a prerequisite in marketing seeds as it ensures uniformity of the crop and is important in breeding programs. The aim of this work therefore was to evaluate the similarity and genotype patterns which permit differentiation of the commercial radish cultivars IPR 116 and CATI AL-1000. In order to do this, isoenzyme electrophoretic patterns were analysed in dry seeds, soaked seeds, seedling leaves and young leaves; the isoenzymes used being: superoxide dismutase, catalase, esterase, glutamate-oxalocetate, malate dehydrogenase and isocitrate lyase. Thirty-seven RAPD primers and 10 ISSR primers in leaves of the CATI AL-1000 and IPR-116 cultivars were analysed. Among the isoenzymes under study, the most polymorphic were glutamate oxalocetate, malate dehydrogenase, esterase and superoxide dismutase, with the superoxide dismutase system giving the best characterisation for all stages of development. The catalase isoenzyme system did not make it possible to differentiate between cultivars at any stage of development, and isocitrate lyase was not revealed by the protocol used. In analysis of the markers, 27 RAPD primers and eight ISSR primers showed polymorphism. The results indicate that it is possible to determine reliable descriptors based on isoenzymes at different stages of development of the radish and with the use of RAPD and ISSR primers.

Cytomorphological characterization of tea cultivars

International Nuclear Information System (INIS)

Rahman, H.; Khalil, I.H.; Shah, S.M.A.; Khanzada, T.Z.; Abbasi, F.M; Ahmad, H.; Shah, Z.

2010-01-01

Cytomorphological characterization was performed on tea cultivars, three each of Camellia sinensis and Camellia assamica species. For plant morphological study, one and a half year old healthy shoots were obtained from the selected mother bushes of the six tea cultivars. The field experiment conducted in randomized complete block design having four replications was aimed at evaluating plant height, number of leaves plant-l, number of branches plant-l, number of flowers plant-1, fresh and dry leaf weight plant-I. The data indicated significant difference between the two species with narrow leaved cultivars having increased plant height, number of leaves and branches plant-I than the broad leaved cultivars, but less number of flowers plant-l, fresh and dry leaf weight. Karyotype analysis indicated that both the groups are diploid with 2n = 30. On the basis of chromosome morphology, C. assamica had larger chromosomes (3-10.5 mu m) as compared to C. sinensis (3.9-8 mu m). C. assamica has relatively advanced features as compared to C. sinensis. However, both the groups possessed mostly median to sub-median centromeres with no secondary constrictions which possibly indicates that little or no evolutionary changes have taken place in tea and that the karyotype is still at a primitive stage, with C. sinensis being more primitive than C. assamica. Our results suggest that both the groups are different from each other in morphological as well as cytological attributes and could therefore generate more germplasm if the two species could be involved in tea breeding programs. (author)

Milk production potential of two ryegrass cultivars with different total ...

African Journals Online (AJOL)

The aim of the study was to compare a new Italian ryegrass (Lolium multiflorum) cultivar (Enhancer), bred to contain a high total non-structural carbohydrate content, with the cultivar, Dargle, in terms of dry matter (DM) production, nutritional value, carrying capacity and milk production. The ryegrass cultivars were sown (25 ...

Register of New Fruit and Nut Cultivars List 46. Rambutan.

Science.gov (United States)

The Register of New Fruit and Nut Varieties 46 is a compilation of descriptions of new fruit and nut cultivars from around the world. In this edition, 8 newly released rambutan cultivars are described in terms of their origins, important fruit traits and yield. Of the eight described cultivars, one ...

Synonyms and homonyms of Malvasia cultivars (Vitis vinifera L.) existing in Spain

Energy Technology Data Exchange (ETDEWEB)

Rodriguez Torres, I.; Ibanez, J.; Andres, M. T. de; Rubio, C.; Borrego, J.; Cabello, F.; Zerolo, J.; Munoz Organero, G.

2009-07-01

Malvasia is a common name for different grape cultivars that have long been grown in Spain. In many cases, these cultivars are noted as being aromatic, sweet, and similar to Muscat in flavour. However, not all grapes that share this name exhibit these characteristics. This study compares the Malvasia cultivars in the Spanish Denominations of Origin with those grape cultivars grown in the grapevine collection of El Encin (Alcala de Henares, Spain) using morphological, iso enzymatic, and micro satellite analysis as well as a large bibliographic search of the studied cultivars. Despite their Malvasia denomination, some cultivars have been identified as synonyms of Macabeo, Alarije, Dona Blanca, Chasselas, or Planta Nova, all included on the official Spanish list of commercial grape cultivars. Malvasia de Sitges and Malvasia de Lanzarote have the characteristic flavour of Malvasia grapes and no synonyms were found among the cultivars grown in Spain, whereas Malvasia Rosada resulted from a colour mutation in Malvasia de Sitges. (Author) 26 refs.

Effects of Site and Cultivar on Consumer Acceptance of Pomegranate.

Science.gov (United States)

Chater, John M; Merhaut, Donald J; Jia, Zhenyu; Arpaia, Mary Lu; Mauk, Peggy A; Preece, John E

2018-05-01

Pomegranate (Punica granatum L.) is an important fruit in many cultures. The fruit and juice have risen in popularity as it was discovered that pomegranate has relatively high antioxidant activity compared to most other fruits. In this study, six cultivars were utilized to determine consumer acceptance compared to the industry standard, 'Wonderful,' which comprises 90% to 95% of commercial production in the United States. Fruit were sourced from 2 cultivar field trials, one in inland Riverside, California, and one in coastal Ventura County, California. Cultivars selected for the study included 'Eversweet,' 'Green Globe,' 'Haku Botan,' 'Loffani,' 'Phoenicia,' 'Wonderful,' and 'cv. 857,' an heirloom cultivar from Ventura County, CA, U.S.A. Pomegranate arils were subject to sensory evaluation by 87 untrained consumer panelists in late 2016. Panelists were given pomegranate arils and asked to score the samples using a 9-point Hedonic scale for the following fruit quality traits: aril color, sweetness, tartness, seed hardness, bitterness, and overall desirability. There were significant differences among cultivars for all traits assessed by the sensory panelists. There were differences in acceptance among consumers for 'Wonderful' depending on if it was grown on the coast versus inland, and consumers preferred inland- versus coastal-grown 'Wonderful.' 'Wonderful' pomegranate was associated with cultivars that consumers scored low on desirability for bitterness. Cultivars that scored well in overall desirability compared with 'Wonderful' were 'cv. 857,' 'Eversweet,' 'Green Globe,' and 'Phoenicia.' Consumer sensory panels are important to determine scientifically which cultivars are desired by the public. These panels allowed for the determination of which pomegranate cultivars are liked or disliked by consumers and why. If the pomegranate growers know the most desirable cultivars for consumers, they are more likely to adopt and plant them, thus potentially increasing the

Resposta de cultivares de milho a zinco em solução nutritiva Corn cultivar responses to zinc in nutrient solution

Directory of Open Access Journals (Sweden)

Angela Maria Cangiani Furlani

1996-01-01

Full Text Available Este trabalho, desenvolvido em solução nutritiva, em casa de vegetação, no Centro Experimental de Campinas, Instituto Agronômico, objetivou definir parâmetros para avaliação e diferenciação de cultivares de milho quanto à exigência em zinco. Desenvolveram-se 24 cultivares durante 30 dias em solução nutritiva completa, com dois níveis de zinco (0,125 e 0,350 mg/L de Zn. O experimento seguiu o delineamento em blocos ao acaso, com parcelas subdivididas, com duas repetições por parcela e quatro plantas de cada cultivar por parcela. Os níveis de zinco ocuparam as parcelas e os cultivares, as subparcelas. Determinaram-se as seguintes variáveis: altura de planta, produção de massa seca da parte aérea, teores e conteúdos de zinco na parte aérea. Observaram-se reduções na produção de massa seca, na altura das plantas e nos teores e conteúdos de zinco, para o nível inferior do micronutriente na solução nutritiva. Os cultivares D-468, ICI-791152 e C-701 mostraram as menores reduções em altura em função do baixo nível de zinco e, C-808, Hatã-2000, OC-5045-6 e BR-201, as maiores respostas ao nível mais alto de zinco. A variação na altura das plantas (sintoma característico da deficiência de zinco revelou alta correlação (r = 0,86 com a variação no conteúdo de zinco da parte aérea dos diferentes cultivares. A altura das plantas e o conteúdo de zinco constituíram as melhores variáveis para discriminação dos cultivares; entretanto, a técnica em solução nutritiva necessita ser aperfeiçoada para permitir quantificar, com maior precisão, as diferenças detectadas na exigência em zinco.This experiment was conducted in a greenhouse, in nutrient solution, at the Experimental Center of Campinas, Instituto Agronômico, State of São Paulo, Brazil, in order to define variables and parameters to evaluate and differentiate corn cultivars as to zinc requirement. Twenty four corn cultivars were grown in complete

Comparison between four blackberry (Rubus sp.) cultivars to light variation

International Nuclear Information System (INIS)

Enciso, B.E.; Gómez, C.

2004-01-01

Abstract: This paper compares four Colombian blackberry cultivars- (Rubus sp.) light compensation points, leaf area, chlorophyll concentration and photosynthetic capacity. Time can be saved and efficiency improved by adapting different cultivars to differing luminosity once these parameters have been determined and established. The four cultivars involved were -Guarne-, -San Antonio-, -Sara 3- and -Pacho 2- forming part of Corpoica-s blackberry collection at the Sena farm in Manizales. The results revealed that all four cultivars had different light compensation points. They also showed that net photosynthesis varied amongst cultivars, even when grown in the same environmental conditions and that total chlorophyll and leaf area may be used as indicators of response to the conditions being evaluated. Key words: Photosynthesis, leaf area, radiation, compensation point, photons flow density (PFD), chlorophyll [es

Amplifying the benefits of agroecology by using the right cultivars.

Science.gov (United States)

Noguera, D; Laossi, K-R; Lavelle, P; De Carvalho, M H Cruz; Asakawa, N; Botero, C; Barot, S

2011-10-01

Tropical soils are particularly vulnerable to fertility losses due to their low capacity to retain organic matter and mineral nutrients. This urges the development of new agricultural practices to manage mineral nutrients and organic matter in a more sustainable way while relying less on fertilizer inputs. Two methods pertaining to ecological engineering and agroecology have been tested with some success: (1) the addition of biochar to the soil, and (2) the maintenance of higher earthworm densities. However, modern crop varieties have been selected to be adapted to agricultural practices and to the soil conditions they lead to and common cultivars might not be adapted to new practices. Using rice as a model plant, we compared the responsiveness to biochar and earthworms of five rice cultivars with contrasted selection histories. These cultivars had contrasted responsivenesses to earthworms, biochar, and the combination of both. The mean relative increase in grain biomass, among all treatments and cultivars, was 94% and 32%, respectively, with and without fertilization. Choosing the best combination of cultivar and treatment led to a more than fourfold increase in this mean benefit (a 437% and a 353% relative increase in grain biomass, respectively, with and without fertilization). Besides, the more rustic cultivar, a local landrace adapted to diverse and difficult conditions, responded the best to earthworms in terms of total biomass, while a modern common cultivar responded the best in term of grain biomass. This suggests that cultivars could be selected to amplify the benefit of biochar- and earthworm-based practices. Overall, selecting new cultivars interacting more closely with soil organisms and soil heterogeneity could increase agriculture sustainability, fostering the positive feedback loop between soils and plants that has evolved in natural ecosystems.

Plant community variability on a small area in southeastern Montana

Science.gov (United States)

James G. MacCracken; Daniel W. Uresk; Richard M. Hansen

1984-01-01

Plant communities are inherently variable due to a number of environmental and biological forces. Canopy cover and aboveground biomass were determined for understory vegetation in plant communities of a prairie grassland-forest ecotone in southeastern Montana. Vegetation units were described using polar ordination and stepwise discriminant analysis. Nine of a total of...

Caracterização morfológica de cultivares de bananeira micropropagadas em estádio juvenil Morphological characterization of banana micropropagated cultivars in juvenile phase

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Rafael Hansen Madail

2011-02-01

Full Text Available O objetivo deste trabalho foi determinar descritores morfológicos que possibilitassem a caracterização de cultivares de bananeira provenientes de micropropagação ainda na fase juvenil. Foram utilizadas 12 cultivares de bananeira de diferentes grupos genômicos e graus de ploidia, que foram cultivadas in vitro e posteriormente aclimatizadas em casa de vegetação. Após o período de três meses, foram avaliadas características morfológicas quantitativas e caracteres descritivos das plantas. Com base nos resultados obtidos, foi possível separar todas as cultivares estudadas e elaborar uma chave analítica que permite a identificação dessas cultivares após o período de apenas três meses de aclimatização.The aim of this study was to determine morphological descriptors that could enable the characterization of banana cultivars from micropropagation process during the juvenile phase. Twelve cultivars from different genomic groups and with different ploidy levels were grown in vitro and acclimatized in greenhouse for three months. After this period, plants quantitative morphological and descriptive characteristics were evaluated. The results allowed ranking the cultivars and preparing an analytical key to identify these cultivars after the period of three months of acclimatization.

Common bean cultivars and lines interactions with environments

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Carbonell Sérgio Augusto Morais

2004-01-01

Full Text Available The performance of bean lines brought forth in breeding programs or of cultivars in use can be affected by environmental variability. The adaptability and stability of grain yield of 18 common bean cultivars and lines in 23 environments (combinations of seasons, years and locations were evaluated in the State of São Paulo, Brazil. 'IAC-Carioca' and 'IAC-Carioca Eté' were used as standard cultivars for the carioca grain type, while 'FT-Nobre' and 'IAC-Una' represented the standard for black grains. The experiment was set up in a randomized complete block design with four replications and plots consisting of two, two central five meters rows flanked by border rows. Stability parameters were estimated by the methods Maximum Yield Deviations (MYD and by the Additive Main Effects and Multiplicative Interaction Analysis (AMMI. For the identification of the most stable cultivars, the two methods led to consistent results, although by MYD the highest stability was always associated to the highest yield. 'MAC-733327' and 'LP 9637' were the most suitable cultivars and lines for the joint seasons, while 'LP 9637' and 'FT-Nobre' were the most suitable for the dry season. The MYD method combined a simple procedure, easiness of result interpretation, uniqueness of parameters, and association between stability and yield. On the other hand, the AMMI method simplified the identification of stable cultivars by visual inspection, also providing information on the environments. However, the complex nature which combines uni-and multivariate techniques hampers its widespread use in breeding programs.

Vernalização em cinco cultivares de morangueiro Vernalization on five cultivars of strawberry

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Marcelo Fontanetti Verdial

2007-08-01

Full Text Available A produção de morango é sazonal, e os melhores preços dos frutos são obtidos fora da estação. Buscando obter frutos fora da estação, o objetivo deste trabalho foi avaliar o efeito da vernalização em mudas de cinco cultivares de morangueiro. As mudas foram produzidas no sistema de vasos suspensos. O delineamento experimental utilizado foi blocos ao acaso em fatorial 5x2x4, com cinco cultivares ("IAC-Campinas", "Dover", "Sweet Charlie", "Cartuno" e "Oso Grande", dois tratamentos (com e sem vernalização das mudas e quatro tempos, com quatro repetições. Para vernalização, as mudas foram levadas para câmara fria à temperatura de 10+2°C e fotoperíodo de 8h de luz dia-1 durante 28 dias, e em seguida transplantadas. Foram avaliadas as percentagens de sobrevivência, florescimento, frutificação, emissão de estolhos, a massa e o número de frutos produzidos por planta. A sobrevivência de mudas não foi afetada pela vernalização. Houve efeito significativo no florescimento e na frutificação das plantas vernalizadas. O estolonamento de plantas foi mais precoce nas mudas vernalizadas. Para todas as cultivares e tratamentos, a produção de frutos foi insignificante e comercialmente inviável.The strawberry production is seasonal, and the best fruit prices are obtained during the off season. Seeking to get fruits off season, this research was aimed at evaluating the effect of the seedling vernalization of five strawberry cultivars. The strawberry seedling were produced in suspended pot system. The experimental design was is completely randomized blocks with the factorial design 5x2x4, with five strawberry cultivars (IAC-Campinas, Dover, Sweet Charlie, Cartuno and Oso Grande, two treatments (with and without strawberry runners vernalization and four times. For vernalization, the strawberry seedling was taken to cold chamber at 10±2°C, and photoperiod of 8h of light day-1 for 28 days, after this they were transplanted. The

Effects of Soybean Cultivars on Soymilk Quality

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Aziadekey, M.

2001-01-01

Full Text Available Soymilk was prepared from twelve soybean cultivars grown under the same environmental conditions to evaluate their effects on soymilk characteristics. Significant correlations were observed between the Chemical composition of the seeds and the resultant soymilk. Soymilk solids were significantly affected by seed size and seed phosphorus contents. Cultivars with dark hilum produced soymilk with less attractive colour.

Traditional versus modern apple cultivars – a comparison of juice composition

OpenAIRE

Dobrowolska-Iwanek Justyna; Gąstoł Maciej; Adamska Agnieszka; Krośniak Mirosław; Zagrodzki Paweł

2015-01-01

Apples are rich in components that are important for human health, such as polyphenols, organic acids and microelements, but their chemical composition varies with different apple cultivars. We aimed to find out if there is any superiority in traditionally grown apple cultivars in terms of their fruits’ bioactive components content. Juice from two traditionally grown apple cultivars, ‘Mutsu’ and ‘Reinette Simirenko’, was compared to eight popular apple cultivars, ‘Jonagold’, ‘Jonagold Decosta...

Genetic diversity of high performance cultivars of upland and irrigated Brazilian rice.

Science.gov (United States)

Coelho, G R C; Brondani, C; Hoffmann, L V; Valdisser, P A M R; Borba, T C O; Mendonça, J A; Rodrigues, L A; de Menezes, I P P

2017-09-21

The objective of this study was to analyze the diversity and discrimination of high-performance Brazilian rice cultivars using microsatellite markers. Twenty-nine rice cultivars belonging to EMBRAPA Arroz e Feijão germplasm bank in Brazil were genotyped by 24 SSR markers to establish their structure and genetic discrimination. It was demonstrated that the analyzed germplasm of rice presents an expressive and significant genetic diversity with low heterogeneity among the cultivars. All 29 cultivars were differentiated genetically, and were organized into two groups related to their upland and irrigated cultivation systems. These groups showed a high genetic differentiation, with greater diversity within the group that includes the cultivars for irrigated system. The genotyping data of these cultivars, with the morphological e phenotypical data, are valuable information to be used by rice breeding programs to develop new improved cultivars.

Chemical characteristics of the major thermal springs of Montana

Energy Technology Data Exchange (ETDEWEB)

Mariner, R.H.; Presser, T.S.; Evans, W.C.

1976-07-01

Twenty-one thermal springs in western Montana were sampled for chemical, isotope, and gas compositions. Most of the springs issue dilute to slightly saline sodium-bicarbonate waters of neutral to slightly alkaline pH. A few of the springs issue sodium-mixed anion waters of near neutral pH. Fluoride concentrations are high in most of the thermal waters, up to 18 miligrams per litre, while F/Cl ratios range from 3/1 in the dilute waters to 1/10 in the slightly saline waters. Most of the springs are theoretically in thermodynamic equilibrium with respect to calcite and fluorite. Nitrogen is the major gas escaping from most of the hot springs; however, Hunters Hot Springs issue principally methane. The deuterium content of the hot spring waters is typical of meteoric water in western Montana. Geothermal calculations based on silica concentrations and Na-K-Ca ratios indicate that most of the springs are associated with low temperature aquifers (less than 100/sup 0/C). Chalcedony may be controlling the silica concentrations in these low temperature aquifers even in ''granitic'' terranes.

Assessment of inter- and intra-cultivar variations in olive using SSR markers

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Ahmet Ipek

2012-10-01

Full Text Available Olive (Olea europaea L. production in the world has been made by using many cultivars, and the genetic uniformity of commercial cultivars is important for standard olive oil and table olive production. The genetic variation among and within commonly cultivated olive cultivars in Turkey was analyzed using SSR markers. A total of 135 leaf samples were collected from 11 commonly cultivated olive cultivars from 11 provinces in four geographical regions of Turkey. Seven SSR primer pairs generated 46 SSR markers, and the number of SSR markers per primer pair ranged from 4 (UDO-14 to 9 (GAPU-89 with an average of 6.57. This high level of SSR polymorphism suggests that olive production in Turkey has been made using genetically diverse olive cultivars and this high level of genetic variation is probably due to the location of Turkey in the center of the origin of olive. The UPGMA dendrogram, developed to visualize the estimated genetic relationships among the 135 samples, demonstrated that the clustering of olive cultivars was not based on geographical regions of cultivation. Presence of genetic variation was detected within a nationwide grown Turkish olive cultivar, called 'Gemlik'. Olive growers successfully discriminated olive cultivars with distinct morphological and pomological characters. However, there was some confusion about the identification of cultivars with similar phenotypic traits. To prevent misidentification of olive cultivars and to minimize intra-cultivar variation, certified propagation materials which were characterized using DNA based molecular markers should be used during the establishment of new olive orchards.

Summary of geothermal studies in Montana, 1980 through 1983. DOE final report

Energy Technology Data Exchange (ETDEWEB)

Sonderegger, J.L.

1984-01-01

The geology, hydrology, and surface manifestations of geothermal systems in Montana are described by area. Water-quality information, tables of inventory and water analysis data for springs and wells, and a geothermal resource map are included. (MHR)

Eficiência produtiva de cultivares de arroz com divergência fenotípica Production efficiency of rice cultivars with phenotypic diversity

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Cleber M. Guimarães

2008-10-01

Full Text Available O objetivo do trabalho foi avaliar, fenotipicamente, as cultivares de arroz tradicionais Guarani e Caiapó, e as modernas, CIRAD L(-141, Maravilha, BR IRGA 409 e Metica 1, por meio da associação entre os vários componentes da produtividade de grãos, para prover base de seleção genética em populações de plantas. O estudo foi conduzido na estação chuvosa do ano agrícola de 2003-2004, na área experimental da Embrapa Arroz e Feijão, em Santo Antônio de Goiás, GO. Em condições de sequeiro, com suplementação hídrica, as cultivares de arroz de terras altas CIRAD L(-141, Guarani, Caiapó e Maravilha, apresentaram maiores índices de colheita e menores percentagens de esterilidade de espiguetas que as de arroz irrigado BR IRGA 409 e Metica 1. Concluiu-se que a maior produção de biomassa pelas cultivares de arroz irrigado não se refletiu na produtividade de grãos. A CIRAD L(-141 por apresentar alta área foliar, panículas densas com alto número de grãos e um comportamento intermediário em todos os componentes avaliados, como índice de colheita, massa dos grãos, fertilidade de perfilhos, perfilhamento, esterilidade de espiguetas e taxa de crescimento, produziu 12,5% a mais que a segunda mais produtiva. O aumento do índice de colheita e da massa dos grãos e a redução da esterilidade das espiguetas devido às suas altas correlações com a produtividade, são considerados prioritários em programas de melhoramento de arroz que visem obter cultivares mais produtivas.The objective of this study was to phenotypically evaluate the traditional rice cultivars Guarani and Caiapó, and the modern rice cultivars CIRAD L(-141, Maravilha, BR IRGA 409, and Metica 1 through association among various yield components to establish a genetic selection base in plant population. The study was conducted during the rainy season of 2003-2004, at the Embrapa Rice & Beans experimental station, in Santo Antônio de Goiás, Goiás, Brazil. With

Desempenho de cultivares de alface tipo americana em cultivo de outono no sul de Minas Gerais Performance of iceberg lettuce cultivars in south of Minas Gerais under autumn condition

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Jony Eishi Yuri

2004-04-01

Full Text Available Com o objetivo de avaliar o desempenho de cultivares de alface tipo americana (Lactuca sativa L. em cultivo de outono, foi conduzido um experimento no município de Santana da Vargem, MG, no período de março a junho de 2002. Utilizou-se o delineamento de blocos ao acaso com treze tratamentos (cultivares Adal, 4553 R7, AEL 10, Iglo, Rocco RZ, Rubette, RX 66, RPT 3030, RPT 2020, Paloma, Sandy, Legacy e Raider e três repetições. As cultivares 45-53R7, RPT 2020, Paloma, Raider e RPT 3030 apresentaram massa fresca total estatisticamente maiores que as demais cultivares, com produtividades de 1.016,9; 1.029,4; 1.044,9; 1.075,2 e 1.105,2 g planta-1, respectivamente. As cultivares 45-53R7, RPT 2020, Paloma, Raider, RPT 3030, AEL 10 e Rocco, com produtividade de massa fresca comercial oscilando entre 599,1 a 739,1 g planta-1, foram estatisticamente mais produtivas que as demais cultivares. A cultivar 45-53R7, com circunferência de cabeça comercial de 49,2 cm, sobressaiu-se das demais. Não houve diferenças significativas entre os materiais quanto ao comprimento de caule. Quanto à simetria da cabeça comercial, as cultivares RPT 2020, Raider e RPT 3030, com notas 4,6; 5,0 e 5,0, respectivamente, foram mais simétricas do que as demais cultivares.With the objective of evaluating iceberg lettuce (Lactuca sativa L. cultivars grown under autumn condition, an experience in Santana da Vargem, MG, Brazil, was carried out from March to June of 2002. The experimental design was in randomized complete blocks with thirteen treatments (cultivars Adal, 4553 R7, AEL 10, Iglo, Rocco RZ, Rubette, RX 66, RPT 3030, RPT 2020, Paloma, Sandy, Legacy e Raider and three replicates. The cultivars 45-53R7, RPT 2020, Paloma, Raider and RPT 3030 showed statistically higher total fresh matter than the other cultivars, with the yield ranging 1,010.9; 1,029.4; 1,044.9; 1,075.2 and 1105.2 g plant-1, respectively. The cultivars 45-53R7, RPT 2020, Paloma, Raider, RPT 3030, AEL

Desidratação de cultivares de Cynodon spp. durante o processo de fenação Dehydration of Cynodon grass cultivars during haymaking

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Geane Dias Gonçalves

2001-05-01

Full Text Available O experimento teve por objetivo avaliar a desidratação de cultivares de Cynodon spp. (Poaceae durante o processo de fenação. Foram realizadas amostragens nos tempos zero (momento do corte, 3, 6, 21, 24, 27 e 30 horas após o corte, a fim de se determinar a curva de desidratação e os teores de proteína bruta (PB da planta inteira e das frações folhas e colmos. Determinou-se também a espessura dos colmos de cada cultivar. Utilizou-se o delineamento experimental em blocos completamente casualizados em esquema fatorial 3x7 (cultivares x tempos de amostragens, com três repetições. A velocidade de perda de água foi semelhante para os cultivares avaliados, tanto para a planta como para as frações colmos e folhas. Não houve efeito para os teores de PB com o avanço nos tempos de secagem. Porém, houve diferença para a relação L/C, onde o Tifton 85 apresentou maior valor. Já para o diâmetro do colmo, o Tifton 44 foi superior em relação aos demais cultivares.Dehydration of cultivars of the genus Cynodon (Poaceae and the possible variations of chemical composition of forages during the haymaking process were evaluated. Three cultivars of Cynodon, Tifton 85, Coast cross and Tifton 44 were used, in plots of 15 m2, with three randomized blocks. Samples at 0 (cutting time, 3, 6, 21, 24, 27 and 30 hours after cutting were taken to determine the dehydration curve of whole plant, leaves and stem. Speed in water loss in plant, leaves and stem segments was similar in all cultivars. Drying did not affect CP taxes. There was, however, a difference for the leaves/stem relationship in which Tifton 85 had the highest value. Tifton 44 was higher in the other cultivars with regard to stem diameter.

Solanum cultivar responses to arbuscular mycorrhizal fungi: growth ...

African Journals Online (AJOL)

A greenhouse experiment was carried out in a sandy soil with a low available phosphorus to evaluate responsiveness of four Solanum aethiopicum cultivars to indigenous arbuscular mycorrhizal fungi. Results showed clear interaction between genetic variability of cultivars and fungal isolates on shoot biomass and on ...

Identification of cowpea cultivars for low phosphorus soils of Nigeria

International Nuclear Information System (INIS)

Afolabi, N.O.; Ogunbodede, B.A.; Adediran, J.A.

1996-01-01

Twenty cultivars of cowpea, Vigna unguiculata, adapted to the Nigerian ecologies were screened to identify cultivars which can give high and sustainable yields when grown on soils with low available phosphorus in a sub-humid climate. Some cultivars including TVX3236, AFB1757, Ogunfowokan and K-28 gave three to four times higher grain yields than the other cultivars at zero phosphorus supply. While phosphorus application reduced grain yield in most of the cultivars with marked reduction in the higher yielding cultivars, low yielding cultivars tended to show some yield increase. Phosphorus use efficiency of the roots, stem or leaves was not significantly correlated with grain yield when 60 KgP/ha was applied. Reduction in yield due to phosphorus application might be due to induced Zn deficiency as Zn supply in these soils has been found to be inherently low. High grain yielding capacity without fertilizer phosphorus application was generally positively correlated with high vegetative shoot dry matter production. However, no clear relationship could be found between grain yield and root dry matter at maturity. It is concluded that selection for phosphorus efficiency in cowpea can substantially contribute to higher cowpea productivity and the farmers income on soils low in available phosphorus in the sub-humid areas of Nigeria. (author). 5 refs, 2 figs, 2 tabs

Identification of cowpea cultivars for low phosphorus soils of Nigeria

Energy Technology Data Exchange (ETDEWEB)

Afolabi, N O; Ogunbodede, B A; Adediran, J A [Obafemi Awolowo Univ., Ibadan (Nigeria). Inst. of Agricultural Research and Training

1996-07-01

Twenty cultivars of cowpea, Vigna unguiculata, adapted to the Nigerian ecologies were screened to identify cultivars which can give high and sustainable yields when grown on soils with low available phosphorus in a sub-humid climate. Some cultivars including TVX3236, AFB1757, Ogunfowokan and K-28 gave three to four times higher grain yields than the other cultivars at zero phosphorus supply. While phosphorus application reduced grain yield in most of the cultivars with marked reduction in the higher yielding cultivars, low yielding cultivars tended to show some yield increase. Phosphorus use efficiency of the roots, stem or leaves was not significantly correlated with grain yield when 60 KgP/ha was applied. Reduction in yield due to phosphorus application might be due to induced Zn deficiency as Zn supply in these soils has been found to be inherently low. High grain yielding capacity without fertilizer phosphorus application was generally positively correlated with high vegetative shoot dry matter production. However, no clear relationship could be found between grain yield and root dry matter at maturity. It is concluded that selection for phosphorus efficiency in cowpea can substantially contribute to higher cowpea productivity and the farmers income on soils low in available phosphorus in the sub-humid areas of Nigeria. (author). 5 refs, 2 figs, 2 tabs.

Rooting of stem segments from fig tree cultivars

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Rayane Barcelos Bisi

2016-06-01

Full Text Available Although Brazil is the largest fig (Ficus carica L. producer in the Southern Hemisphere, it mainly uses only one cultivar, ‘Roxo de Valinhos’. In addition, propagation is almost entirely through hardwood cuttings. Therefore, the aim of this study was to establish a propagation method that provides more successful rooting of stem segments of fig cultivars for the purpose of expanding the genetic base of the fig tree. The cultivars used were ‘Brunswick’, ‘Calabacita’, ‘Negro de Bursa’, ‘Mini Figo’, ‘Lampa Preta’, ‘Lemon’, ‘Troiano’,’ Nazaré’, ‘Três num Prato’, ‘Princesa’, ‘Colo de Dama’, ‘Montes’, ‘Bêbera Branca’, ‘Pingo de Mel’, and ‘Roxo de Valinhos’. The propagation methods used were layering, hardwood cuttings, nodal segments, herbaceous cuttings originating from the removal of sprouts, and herbaceous cuttings obtained during growth. We found that the propagation method influences the rooting of stem segments, and cultivars differ in their rooting potential.

WHEAT CULTIVARS: RESPONSE TO IRRIGATION AND SOWING DATES

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Klar A.E.

1996-01-01

Full Text Available This study was carried out in an Alfisol-Oxisol transition sandy-clay texture, using six wheat cultivars (Triticum aestivum, L.: two tall and tolerant to soil aluminium toxicity (BH-1146, and IAC-18, and four semi-dwarf cultivars - Anahuac, IAC-162, IAC-24, and IAC-60 - of which only the first two are sensitive to soil aluminium toxicity. Two minimum soil water potentials (ys levels were used: 1. watered, when Ys reached about -0.05 MPa; 2. dry, when the water potential reached around -1.5 MPa. Two sowing dates, 05/22/92 and 06/11/92, were used. The results showed that Anahuac and IAC-60 are the most indicated cultivars for the studied region; when irrigated all cultivars presented similar yield level under no irrigation conditions; the irrigation was not sufficient to avoid yield differences between the two growing seasons; differences in rainfall were important for the crop in the dry treatment for both seasons.

Identification of apple cultivars on the basis of simple sequence repeat markers.

Science.gov (United States)

Liu, G S; Zhang, Y G; Tao, R; Fang, J G; Dai, H Y

2014-09-12

DNA markers are useful tools that play an important role in plant cultivar identification. They are usually based on polymerase chain reaction (PCR) and include simple sequence repeats (SSRs), inter-simple sequence repeats, and random amplified polymorphic DNA. However, DNA markers were not used effectively in the complete identification of plant cultivars because of the lack of known DNA fingerprints. Recently, a novel approach called the cultivar identification diagram (CID) strategy was developed to facilitate the use of DNA markers for separate plant individuals. The CID was designed whereby a polymorphic maker was generated from each PCR that directly allowed for cultivar sample separation at each step. Therefore, it could be used to identify cultivars and varieties easily with fewer primers. In this study, 60 apple cultivars, including a few main cultivars in fields and varieties from descendants (Fuji x Telamon) were examined. Of the 20 pairs of SSR primers screened, 8 pairs gave reproducible, polymorphic DNA amplification patterns. The banding patterns obtained from these 8 primers were used to construct a CID map. Each cultivar or variety in this study was distinguished from the others completely, indicating that this method can be used for efficient cultivar identification. The result contributed to studies on germplasm resources and the seedling industry in fruit trees.

Sensory profile of eleven peach cultivars

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Francine Lorena Cuquel

2012-03-01

Full Text Available The goal of this study was to evaluate the sensory profile of eleven peach cultivars grown in an experimental orchard located in the city of Lapa (PR, Brazil in two seasons. The peach cultivars analyzed were Aurora I, Chimarrita, Chiripá, Coral, Eldorado, Granada, Leonense, Maciel, Marli, Premier, and Vanguarda. The sensory analysis was performed by previously trained panelists; 20 of them in the first season and 10 in the second season. The sensory evaluation was performed using Quantitative Descriptive Analysis, in which the following attributes were measured: appearance, aroma, flesh color, flesh firmness, flavor, and juiciness. The results showed preference for sweet, soft, and juicy fruits. Chimarrita, Chiripá, and Coral fruits showed better sensorial performance than the other peach cultivars. It was also verified that the analysis of the attributes aroma, flesh firmness, and flavor is enough for performing the sensory profile of peach fruits for in natura consumption.

Caracterização molecular de cultivares de cebola por marcadores RAPD Molecular characterization of onion cultivars by RAPD markers

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Daniela L Leite

2009-12-01

Full Text Available Em plantas alógamas, as cultivares constituem uma fonte de variação genética planta-a-planta no qual o melhorista pode obter novos materiais. A variabilidade genética entre indivíduos ou populações tem sido medida através de marcadores moleculares. O objetivo deste trabalho foi avaliar molecularmente, através da análise de RAPD (Random Amplified Polimorphic DNA, a diversidade genética existente em um grupo de cultivares de cebola recomendadas para o cultivo na Região Sul do Brasil. Foram analisados 11 iniciadores em DNAs provenientes de um total de 90 plantas individuais oriundas das cultivares Baia Periforme, Bola Precoce, BRS Cascata, Crioula, Primavera e Roxa. As plantas foram genotipadas através dos produtos visualizados em gel de agarose e uma matriz de presença/ausência de bandas foi utilizada nas análises de similaridade genética (coeficiente de Jaccard e de agrupamento pelo método UPGMA. Os 11 iniciadores geraram 140 (86,4% bandas polimórficas. O número de fragmentos por iniciador variou de 10 (UBC105 até 18 (OPA10; OPC11; OPI1 com uma média de 15 bandas por iniciador. A técnica de RAPD mostrou-se eficiente na caracterização molecular, permitindo a formação de grupos de cultivares de acordo com a sua população de origem, com uma similaridade média de 63%. Conclui-se que as cultivares de cebola recomendadas para a Região Sul do Brasil, apresentam divergência genética, com potencial de serem exploradas por melhoristas, no desenvolvimento de genótipos superiores.In alogam plants, the cultivars constitute a source of plant-to-plant genetic variation from which the breeder can obtain new materials. Genetic variability among individuals or populations has been measured through molecular markers. The objective of this work was to evaluate the genetic diversity in a group of onion cultivars recommended for cultivation in the Southern Region of Brazil by RAPD (Random Amplified Polimorphic DNA analysis. Eleven

The ammonoids from the Three Forks Shale (Late Devonian of Montana

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D. Korn

2006-08-01

Full Text Available The ammonoid fauna from the Late Devonian Three Forks Shale of Montana is revised. Six taxa were recognised, which belong to the genera Tornoceras, Pernoceras, Raymondiceras, Platyclymenia, Pleuroclymenia, and Carinoclymenia. The ammonoid assemblage suggests a stratigraphic position within the middle Famennian, most probably the Platyclymenia annulata Zone. The ammonoids display extreme septal crowding in intermediate as well as adult growth stages, which can be regarded as evidence for instable palaeoecological conditions during lifetime of the animals. Die Ammonoideenfauna aus dem oberdevonischen Three Forks Shale von Montana wird revidiert. Sechs Taxa werden unterschieden; sie gehören zu den Gattungen Tornoceras, Pernoceras, Raymondiceras, Platyclymenia, Pleuroclymenia und Carinoclymenia. Die Ammonoideen-Vergesellschaftung spricht für eine stratigraphische Position im mittleren Famennium, wahrscheinlich in der Platyclymenia annulata Zone. Die Ammonoideen zeigen auffällige Drängung der Septen in intermediären und adulten Wachstumsstadien, die als Hinweis auf instabile Lebensbedingungen für die Tiere gewertet werden kann. doi:10.1002/mmng.200600008

Caracterização molecular de cultivares de pessegueiro e nectarineira com microssatélites Molecular characterization of peach and nectarine cultivars though microsatellites markers

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Valmor João Bianchi

2004-12-01

Full Text Available Na certificação de mudas de plantas frutíferas, a identificação genética é importante em todas as etapas do processo de produção. Em pessegueiro, a identificação de genótipos baseada somente em características morfofenológicas deixa dúvidas quanto à verdadeira identidade de algumas cultivares. Marcadores moleculares de microssatélies foram utilizados objetivando a caracterização molecular de 8 cultivares de nectarineira e 28 de pessegueiro. Para a análise, foram utilizados 13 incializadores de microssatélites (primers, sendo que todos foram marcadores produzindo polimorfismo suficiente para identificar 32 das 36 cultivares analisadas. A maior similaridade genética verificada nas cultivares para consumo in natura foi entre Coral e Planalto (0,94 e entre Della Nona e Marfim (0,90, enquanto, para os pessegueiros para indústria, foi de 0,93 entre Jubileu e Capdeboscq e de 0,92 entre Jade e Esmeralda. Os marcadores de microssatélites permitiram separar em grupos distintos as nectarineiras e os pessegueiros de consumo in natura dos de indústria, havendo uma elevada concordância entre os dados genealógicos das cultivares e os dados gerados pelos microssatélites, confirmando a grande utilidade da técnica para a caracterização genética.Genetic identification of fruit tree plants is important in all phases of the production process. On peach the genotypes identification based only on the morphologic and phenologic characteristics leaves doubts on the true identity of some cultivars. Microsatellite markers were used aiming at the molecular characterization of eight nectarine and 28 peach cultivars. Thirteen microsatellite primers were used and all of them generated enough polimorfism that may identify 32 out of 36 of the analysed cultivars. The greatest genetic similarity was found between the fresh market 'Coral' and 'Planalto'(0,94 and between the 'Della Nona' and 'Marfim' cultivars (0,90, whereas for caning peaches the

The Story of Story Mill-A Montana Community Working to Restore Wetlands

Science.gov (United States)

Story Mill, a 55-acre site on the outskirts of Bozeman, Montana, has undergone several transformations in recent history. The place is virtually a “mill of stories” with respect to land use, but originally it was a wetland.

Genetic relationships among okra (Abelmoschus esculentus (L. Moench cultivars in Nigeria

Directory of Open Access Journals (Sweden)

Bashir O. Bello

2017-09-01

Full Text Available This study was conducted on okra (Abelmoschus esculentus (L. Moench cultivars at the Teaching and Research Farm, University of Maiduguri, Nigeria. The objective was to evaluate the level of genetic divergence and heritability of eight characters in 2015 and 2016 dry seasons using irrigation. The results showed highly significant (p<0.01 differences in the ten okra cultivars for days to anthesis, plant height, fresh capsule length, fresh mass per capsule and fresh capsule diameter across the two years. A high genotypic coefficient of variation, heritability, and genetic advance were detected in all the characters except for days to anthesis and fresh capsule diameter. This implied that different genetic constitution and preponderance of additive effects governed these characters, thus presenting a significant opportunity for selection. The Mahanalobis D2 analysis allotted the ten cultivars into four clusters. The highest was cluster I comprising four cultivars, followed by cluster II containing three cultivars, cluster III consisting two cultivars, and cluster IV with mono genotypic. The three most superior okra cultivars (Salkade, Y’ar gagure and Kwadag for yield and related characters could be exploited directly or introgressed with other promising ones in future breeding programs.

Environmental Assessment: BRAC Construction and Operation of Armed Forces Reserve Center at Malmstrom Air Force Base, Great Falls, Montana

Science.gov (United States)

2009-06-01

east, and south by agricultural and pasture lands, with mixed commercial, industrial, residential, and open land uses to the west and northwest...southeast corner of the installation. Once the runoff reaches the stables, it disperses over horse pastures and any runoff exiting the installation...Environment Agriculture is the largest industry in Montana. Agricultural products grown in Montana include beef and dairy cattle, wheat and barley, sheep

De novo transcriptome assembly of a sour cherry cultivar, Schattenmorelle

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Yeonhwa Jo

2015-12-01

Full Text Available Sour cherry (Prunus cerasus in the genus Prunus in the family Rosaceae is one of the most popular stone fruit trees worldwide. Of known sour cherry cultivars, the Schattenmorelle is a famous old sour cherry with a high amount of fruit production. The Schattenmorelle was selected before 1650 and described in the 1800s. This cultivar was named after gardens of the Chateau de Moreille in which the cultivar was initially found. In order to identify new genes and to develop genetic markers for sour cherry, we performed a transcriptome analysis of a sour cherry. We selected the cultivar Schattenmorelle, which is among commercially important cultivars in Europe and North America. We obtained 2.05 GB raw data from the Schattenmorelle (NCBI accession number: SRX1187170. De novo transcriptome assembly using Trinity identified 61,053 transcripts in which N50 was 611 bp. Next, we identified 25,585 protein coding sequences using TransDecoder. The identified proteins were blasted against NCBI's non-redundant database for annotation. Based on blast search, we taxonomically classified the obtained sequences. As a result, we provide the transcriptome of sour cherry cultivar Schattenmorelle using next generation sequencing.

Molecular genetic identification of some wheat cultivars in the sudan

International Nuclear Information System (INIS)

Mekki, I. I; El Amin, H. B.

2002-01-01

Four wheat (Triticum aestivum L.) cultivars, namely condor, El-Nellene, Wadi El Neil and Debeira were characterized on biochemical and molecular bases. The biochemical ones were protein-banding patterns, using sodium dodecylsulfate-polyacrylamide gel electrophoresis (SDS-PAGE), and isozymes to identify the biochemical genetic fingerprint of the four cultivars. Water-soluble protein-banding pattern showed no polymorphisms among the tested cultivars. The data from starch gel electrophoresis of enzymes, malate dehydrogenase (MDH), esterase (EST) and acid phosphate (ACPH) showed that the cultivars are monomorphic. Further trials to identify the molecular genetic fingerprints of the studied cultivars were carried out using RAPD-PCR twenty-five primers were tested to perform. RAPD-PCR analysis. From the PCR products, a phylogenetic map, i.e, dendrogram, was constructed for the studied cultivars which depicted tow groups. The first group contained Wadi El Neil and Deberia with 48.4% similarity, and the second group contained Condor and El Neileen with 100% similarity. There was no similarity between Condor and Debeira (100% dissimilarity). Therefor, these data can be used subsequently for genetic engineering research and for wheat breeding programmes in the Sudan.(Author)

Phenotyping of wheat cultivars for heat tolerance using chlorophyll a fluorescence

DEFF Research Database (Denmark)

Sharma, Dew Kumari; Andersen, Sven Bode; Ottosen, Carl-Otto

2012-01-01

Abstract. In view of the global climate change, heat stress is an increasing constraint for the productivity of wheat (Triticum aestivum L.). Our aim was to identify contrasting cultivars in terms of heat tolerance by mass screening of 1274 wheat cultivars of diverse origin, based...... with a milder heat stress of 38Cin 300 mmolm–2 s–1 for 2 h with preheating at 33–35Cfor 19 h in 7–14 mmolm–2 s–1 light showed a genetic determination of 8.52.7%.Aheat treatment of 40Cin 300 mmolm–2 s–1 for 72 h in the second screening with 138 selected cultivars resulted in larger differentiation of cultivars...... with an increased genetic component (15.43.6%), which was further increased to 27.96.8% in the third screening with 41 contrasting cultivars. This contrasting set of cultivars was then used to compare the ability of chlorophyll fluorescence parameters to detect genetic difference in heat tolerance...

[Litter decomposition and lignocellulose enzyme activities of Actinothuidium hookeri and Cys- topteris montana in alpine timberline ecotone of western Sichuan, China].

Science.gov (United States)

Chen, Ya-mei; He, Run-lian; Deng, Chang-chun; Yang, Wan-qin; Zhang, Jian; Yang, Lin; Liu, Yang

2015-11-01

The mass loss and lignocellulose enzyme activities of Actinothuidium hookeri residues and Cystopteris montana leaf litter in coniferous forest and timberline of western Sichuan, China were investigated. The results showed that both the mass loss rates of A. hookeri and C. Montana in timberline were higher than those in coniferous forest, while enzyme activities in timberline were lower than those in coniferous forest which was contrast with the hypothesis. The mass loss of two ground covers had significant differences in different seasons. The mass loss rate of A. hookeri in snow-covered season accounted for 69.8% and 83.0% of the whole year' s in timberline and coniferous forest, while that of C. montana in the growing season accounted for 82.6% and 83.4% of the whole year' s in timberline and coniferous forest, respectively. C. montana leaf litter decayed faster in the growing season, which was consistent with its higher cellulase activity in the growing season. The result illustrated that the enzymatic hydrolysis of cellulose and hemicellulose might be the main driving force for the early stage of litter decomposition. Multiple linear regression analysis showed that environmental factors and initial litter quality could explain 45.8%-85.1% variation of enzyme activity. The enzyme activities of A. hookeri and C. montana in the process of decomposition were mainly affected by the freeze-thaw cycle in snow-covered season.

Chemical Composition and Cytotoxic and Antioxidant Activities of Satureja montana L. Essential Oil and Its Antibacterial Potential against Salmonella Spp. Strains

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Hanene Miladi

2013-01-01

Full Text Available The present study describes chemical composition as well as cytotoxic, antioxidant, and antimicrobial activities of winter savory Satureja montana L. essential oil (EO. The plant was collected from south France mountain, and its EO was extracted by hydrodistillation (HD and analysed by gas chromatography/mass spectrometry (GC/MS. Thirty-two compounds were identified accounting for 99.85% of the total oil, where oxygenated monoterpenes constituted the main chemical class (59.11%. The oil was dominated by carvacrol (53.35%, γ-terpinene (13.54%, and the monoterpenic hydrocarbons p-cymene (13.03%. Moreover, S. montana L. EO exhibited high antibacterial activities with strong effectiveness against several pathogenic food isolated Salmonella spp. including S. enteritidis with a diameter of inhibition zones growth ranging from 21 to 51 mm and MIC and MBC values ranging from 0.39–1.56 mg/mL to 0.39–3.12 mg/mL, respectively. Furthermore, the S. montana L. EO was investigated for its cytotoxic and antioxidant activities. The results revealed a significant cytotoxic effect of S. montana L. EO against A549 cell line and an important antioxidant activity. These findings suggest that S. montana L. EO may be considered as an interesting source of components used as potent agents in food preservation and for therapeutic or nutraceutical industries.

Processing properties of grains from some maize cultivars ...

African Journals Online (AJOL)

For the dry milling, whole or pealed grains were simply processed in a hammer mill and the flour fractions separated as with wet milling. Results indicated some variation in the proximate composition with nine cultivars exhibiting protein contents above 8%. High protein cultivars were in order hybrids 88094X87036, ...

NPDES Permit for Crow Municipal Rural & Industrial Pilot Water Treatment Plant in Montana

Science.gov (United States)

Under NPDES permit MT-0031827, the Crow Indian Tribe is authorized to discharge from the Crow Municipal Rural & Industrial (MR&I) Pilot Water Treatment Plant in Bighorn County, Montana to the Bighorn River.

[Ecological adaptability evaluation of peanut cultivars based on biomass and nutrient accumulation].

Science.gov (United States)

Wang, Xue; Cui, Shao-xiong; Sun, Zhi-mei; Mu, Guo-jun; Cui, Shun-li; Wang, Peng-chao; Liu, Li-feng

2015-07-01

To identify the good peanut cultivars with the properties of high yield, high nutrient use efficiency and wide adaptability, 19 selected peanut cultivars were planted in the low champaign area and piedmont plain area of Hebei Province. By using principal component analysis, the adaptability of these 19 cultivars was evaluated for different ecological regions through comparing their 16 main traits including biomass and nutrient parameters. According to the critical value of principal component (>1.0), the 16 biomass and nutrient characteristics were integrated into 4 principal components which accounted for 85% of the original information. The results indicated that there were obvious differences in yield and nutrient use efficiency for the peanut cultivars in different ecological regions. The 19 peanut cultivars were classified into 2 groups according to their ecological adaptability, and the cultivars from the group with wide adaptability could further be divided into 3 categories according to their yield and nutrient use efficiency. Among these cultivars, Yuhua 9719, Jihua 0212-4, Weihua 10, Yuhua 15, Puhua 28 and Jihua 10 were selected as the better peanut cultivars with the properties of high yield, high nutrient use efficiency and wide adaptability.

Study of volatile oil and lipid content of Jasonia montana (vahl ...

African Journals Online (AJOL)

The volatile oils, prepared by hydrodistillation from the aerial parts of three patches of Jasonia montana (vahl.) collected in May, August and November were subjected separately to GC/Ms analysis. Camphor, endoborneol, endobornyl acetate, intermedeol, 1, 8-cineole, 1-α-terpineol, and α-pinene, represented the major ...

Influence of Cultivar on the Postharvest Hardening of Trifoliate Yam (Dioscorea dumetorum Tubers

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Christian Siadjeu

2016-01-01

Full Text Available The influence of cultivar on the postharvest hardening of Dioscorea dumetorum tubers was assessed. 32 cultivars of D. dumetorum tubers were planted in April 2014, harvested at physiological maturity, and stored under prevailing tropical ambient conditions (19–28°C, 60–85% RH for 0, 5, 14, 21, and 28 days. Samples were evaluated for cooked hardness. Results showed that one cultivar, Ibo sweet 3, was not affected by the hardening phenomenon. The remaining 31 were all subject to the hardening phenomenon at different degree. Cooked hardness increased more rapidly in cultivars with many roots on the tuber surface compared to cultivars with few roots on the tuber surface. When both the characteristics flesh colour and number of roots on tuber surface were associated, cooked hardness in cultivars with yellow flesh and many roots increased more rapidly than in cultivars with white flesh and many roots, whereas cooked hardness in cultivars with yellow flesh and few roots increased more slowly than in cultivars with white flesh and few roots. Accessions collected in high altitude increased more rapidly compared to accessions collected in low altitude. The cultivar Ibo sweet 3 identified in this study could provide important information for breeding program of D. dumetorum against postharvest hardening phenomenon.

Micropropagation of peach rootstocks and cultivars.

Science.gov (United States)

Balla, Ildikó; Mansvelt, Lucienne

2013-01-01

Peach (Prunus persica (L.) Batsch) is one of the most popular stone fruits, commercially produced largely in Mediterranean and, to a lesser extent, in continental climatic conditions. Several breeding programs with different aims release annually large numbers of new cultivars. Micropropagation offers a suitable method to provide the growers of sufficient quantities of rootstocks, as well as of pathogen-free planting material of old and new cultivars.An effective four-step micropropagation procedure for cultivar and rootstock production is described here, based on the use of modified MS and WPM media. The health status of the initial shoot tips is very important, also because the growth and proliferation rate of shoot cultures from virus-infected clones are generally very poor. Proliferation and elongation phases depend on the major macro-elements, as well as the content and ratio of plant growth regulators. It is important to grow the cultures at 22°C, as hyperhydricity may develop at higher temperatures. Although sucrose is the most common carbon source used during proliferation and rooting, for some peach cultivars and rootstocks the replacement of sucrose (10 g/L) with glucose (20 g/L) in the rooting medium improves the rooting and survival rates of plants in the acclimatization phase. The rooting rate of the rootstock "Cadaman" is improved with the chelated form of iron FeEDDHA at 150 mg/L. Rooted plants are acclimatized in greenhouse under high humidity conditions.

Sensibilidade de cultivares de soja (Glycine max aos herbicidas diclosulam e flumetsulam Soybean (Glycine max cultivars sensibility to the herbicides diclosulam and flumetsulam

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Célio R. F. Leite

2000-01-01

Full Text Available O objetivo deste trabalho foi verificar, no campo, no município de Londrina-PR, a resposta de 12 cultivares de soja em relação aos herbicidas diclosulam e flumetsulam aplicados e incorporados em Latossolo Roxo distrófico (80,84 % de argila, pH 5,4 e matéria orgânica 3,07 %. As cultivares foram: 'FT-Guaira', 'Embrapa-48', 'Ocepar-14', 'BR-16', 'Embrapa-4', 'Ocepar-13', 'BR-36', 'FT10-Princesa', 'FT-2000', 'FTAbyara', 'BR-37' e 'RS7- Jacuí'. O diclosulam foi utilizado nas doses de 35 g/ha (normal e 70 g/ha (dobrada; e o flumetsulam nas doses de 120 g/ha (normal e 240 g/ha (dobrada; também foi utilizada a mistura de diclosulam + flumetsulam (20 + 100 g/ha; e imazaquin à 150 g/ha. Nas doses normais utilizadas dos dois herbicidas não foi possível distinguir nenhuma cultivar suscetível. Em dose dobrada do diclosulam os rendimentos das cultivares 'FT-Guaira', 'Embrapa 4' e 'BR-37 ' foram reduzidos em 20,9 %, 11,8 % e 11,0 % respectivamente, em relação à testemunha. O flumetsulam à 240 g/ha e sua mistura com diclosulam também reduziu o rendimento destas cultivares, mais o da 'Ocepar-14'. A maioria das cultivares teve o estande reduzido, nas doses dobradas dos dois herbicidas, mas também sem significância. Somente o estande da cultivar 'Embrapa-48' não foi afetado, ao contrário da 'RS-7 Jacuí'. A altura de plantas foi menor em relação à testemunha no tratamento com flumetsulam à 240 g/ha. Na maioria das cultivares o peso da biomassa seca de nódulos foi menor nas doses dobradas, e em algumas também o peso por unidade de nódulos. A biomassa seca da parte aérea e da raiz não foram reduzidas.The objective of the present paper was to check the behaviour of 12 different soybean cultivars in relation to the tolerance to the herbicides flumetsulam and diclosulam applied on a soil classified as Latossolo Roxo distrófico (80,87% of clay, pH of 5,4 and 3,07 of organic matter in Londrina - PR. The cultivars were: 'FTGuaira', 'Embrapa

Weatherization is a Natural Choice for Montana: Weatherization Assistance Close-Up Fact Sheet

International Nuclear Information System (INIS)

2001-01-01

Montana demonstrates its commitment to technology and efficiency through the Weatherization Program. Weatherization uses advanced technologies and techniques to reduce energy costs for low-income families by increasing the energy efficiency of their homes

Weatherization is a Natural Choice for Montana: Weatherization Assistance Close-Up Fact Sheet

Energy Technology Data Exchange (ETDEWEB)

D& R International

2001-10-10

Montana demonstrates its commitment to technology and efficiency through the Weatherization Program. Weatherization uses advanced technologies and techniques to reduce energy costs for low-income families by increasing the energy efficiency of their homes.

Effect of lentil cultivar on N2 fixation and N partitioning

International Nuclear Information System (INIS)

Kurdali, F.; Kalifa, K.; Al-Shamma, M.

1996-12-01

The study conducted on five lentil cultivars. the results showed that dry matter production, nodulation and N sup 2 fixation were influenced by the cultivar. Beyond flowering, N sup 2 fixation, soil N uptake, and N and P remobilization differed by the cultivar. (author). 32 Refs., 7 Figs., 9 Tabs

Testing Optimum Seeding Rates for five Bread Wheat Cultivars

International Nuclear Information System (INIS)

Wekesa, S.J.; Kiriswa, F.; Owuoche, J.

1999-01-01

A cultivar by seed rate trial was conducted in 1994-1995 crop seasons at Njoro, Kenya. Yield results were found to be significant (P > 0.01) for year, variety, seed rate and year by seed rate interaction. Test weight was highly significant (P -1 were grouped together for significantly higher yields (A) whereas seed rates 85 and 50 kg ha -1 had lower significant yields (B and C respectively). The same grouping was repeated for test weight. There was no significant cultivar by seed rate interaction and no cultivar, specific seed rate. However, since seed rates 245, 205, 165 and 125 kg ha -1 were grouped together, the lowest seed rate, 125 kg ha -1 can be recommended as the optimum seed rate for the above cultivars, as higher seed rates do not give significantly higher yields or higher test weights

Sensibilidade de cultivares de cana-de-açúcar à mistura trifloxysulfuron-sodium + ametryn Sensitivity of sugarcane cultivars to trifloxysulfuron sodium + ametryn mixture

Directory of Open Access Journals (Sweden)

E.A. Ferreira

2005-03-01

Full Text Available O trabalho constou de dois ensaios e teve como objetivo avaliar a sensibilidade de 11 cultivares (SP80-1842, SP79-1011, SP81-3250, SP80-1816, RB855113, RB835486, RB845210, RB867515, RB928064, RB72454 e RB855536 e quatro clones (RB947643, RB855002, RB957712 e RB957689 de cana-de-açúcar à mistura pré-formulada dos herbicidas trifloxysulfuron-sodium (18,5 g kg-1 + ametryn (731,5 g kg-1, denominada Krismat®. Os cultivares e os clones foram cultivados em vasos em ambiente não-protegido. Em ambos os ensaios a mistura herbicida foi aplicada aos 60 dias após a brotação (DAB. No ensaio 1, a mistura herbicida foi aplicada em dose única de 2,00 kg ha-1 sobre todos os cultivares e clones, enquanto no ensaio 2 a mistura foi aplicada nas doses de 1,00, 2,00 e 6,00 kg ha¹ sobre os cultivares RB855113 e RB867515. Após a aplicação do herbicida e aos 45 dias após a aplicação dos tratamentos (DAT, por ocasião da colheita, foram feitas avaliações semanais de fitotoxicidade, avaliando-se também a biomassa seca da parte aérea dos 11 cultivares e dos quatro clones. As variáveis altura da planta, número de folhas, área foliar e biomassa seca da parte aérea e do caule foram avaliadas no segundo ensaio. O cultivar RB855113 apresentou alta sensibilidade à mistura herbicida; os genótipos SP80-1842, SP801816, SP79-1011 e RB957689 apresentaram sensibilidade média; e os demais mostraram boa tolerância a esse produto. Para o cultivar RB855113, o maior índice de toxidez foi observado no período de 20 a 27 DAT. Nesse período observou-se redução da altura da planta, do número de folhas, da área foliar e da biomassa seca da parte aérea e do caule com o aumento das doses do produto. O cultivar RB867515 apresentou-se tolerante às menores doses do herbicida, porém, na maior dose testada, ele se mostrou sensível, observando-se redução nas características avaliadas.The objective of this study was to evaluate the sensitivity of 11 cultivars

Fire ecology of Montana forest habitat types east of the Continental Divide

Science.gov (United States)

William C. Fischer; Bruce D. Clayton

1983-01-01

Provides information on fire as an ecological factor for forest habitat types occurring east of the Continental Divide in Montana. Identifies "Fire Groups" of habitat types based on fire's role in forest succession. Describes forest fuels and suggests considerations for fire management.

78 FR 47723 - Notice of Public Meeting, Eastern Montana Resource Advisory Council

Science.gov (United States)

2013-08-06

..., (406) 233-2831, [email protected] . Persons who use a telecommunications device for the deaf (TDD... variety of planning and management issues associated with public land management in Montana. At these... manager updates, Field Office Resource Management Planning updates, individual council member briefings...

Acúmulo de matéria seca e de macronutrientes em cultivares de bananeira irrigada Accumulation of dry matter and macronutrient in cultivars of irrigated banana tree

Directory of Open Access Journals (Sweden)

Ricardo Bezerra Hoffmann

2010-03-01

Full Text Available O conhecimento das quantidades de matéria seca e de nutrientes acumulados e exportados por cultivares de bananeira é importante para o desenvolvimento de uma recomendação de adubação para esta cultura. O objetivo deste trabalho foi avaliar as quantidades de matéria seca e de macronutrientes acumuladas e exportadas por seis cultivares de bananeiras irrigadas. Foram amostradas plantas das cultivares Grande Naine, Pacovan, Pacovan-Apodi, Prata-Anã, Terrinha e Gross Michel, em uma área de plantio comercial de bananeira irrigada, no município de Limoeiro do Norte - CE. Na colheita, foram escolhidas quatro famílias de cada cultivar para amostragem. A "planta-mãe" foi dividida em rizoma, pseudocaule, pecíolo, limbo, engaço e frutos. Na matéria seca dessas partes das plantas, determinaram-se os teores dos macronutrientes. As cultivares Pacovan, Prata-Anã e Pacovan-Apodi que, de modo geral, extraíram do solo as maiores quantidades de macronutrientes, foram as que acumularam quantidades mais elevadas de matéria seca. O potássio e o nitrogênio foram os macronutrientes mais acumulados e exportados pelas seis cultivares de bananeira irrigada, seguidos pelo enxofre, cálcio, magnésio e fósforo.The knowledge about the quantity of dry matter and nutrients accumulated and exported by banana is important for the development of fertilizer recommendations. The objective of this study was to evaluate the accumulation of dry matter and macronutrients by six cultivars of irrigated banana crop. Plants of Grande Naine, Pacovan, Pacovan-Apodi, Prata-Anã, Terrinha and Gross Michel cultivars were sampled in a commercial plantation in the municipality of Limoeiro do Norte, state of Ceará, Brazil. At harvest, four plants of each cultivar were selected for sampling. The "mother-plant" was divided into rhizome, pseudo stem, petiole, leaf blade, stalk and fruits. In the dry matter of these parts, the contents of macronutrients were determined. The

Bioactive compounds in different cocoa (Theobroma cacao, L cultivars during fermentation

Directory of Open Access Journals (Sweden)

Jaqueline Fontes Moreau Cruz

2015-06-01

Full Text Available One component that contribute to the flavor and aroma of chocolate are the polyphenols, which have received much attention due to their beneficial implications to human health. Besides bioactive action, polyphenols and methylxantines are responsible for astringency and bitterness in cocoa beans. Another important point is its drastic reduction during cocoa processing for chocolate production and the difference between cultivars. Thus, the present study aimed to evaluate the modifications in monomeric phenolic compounds and methylxanthines during fermentation of three cocoa cultivars grown in southern Bahia. Cocoa beans from three cultivars were fermented and sun dried and monomeric phenolic compounds and methylxantines were determinated. The results showed that each cultivar have different amounts of phenolic compounds and the behaviour of them is different during fermentation. The amount of methylxantines varied but there was not a pattern for methylxantines behavior during process. In addition a huge reduction in phenolic compounds could be observed after drying. Differently of phenolic compounds, methylxantines did not have great modification after sun drying. So, the differences observed in this study between cultivars, take to the conclusion that the compounds studied in those cocoa cultivars have different behavior during fermentation and drying, which consequently, give to these cultivars differences in sensory characteristics.

Genetic Relationships Among Olive (Olea europaea L.) Cultivars Native to Turkey.

Science.gov (United States)

Sakar, Ebru; Unver, Hulya; Bakir, Melike; Ulas, Mehmet; Sakar, Zeynep Mujde

2016-08-01

Olive is a widely cultivated, mainly in the Mediterranean region, and economically important fruit species used as both olive oil and table olive consumption. In Turkey, more than 50 olive cultivars have been authorized for commercial plantations, representing the developmental base for the olive industry. The aim of the present study was to identify genetic relationships among the most widely grown 27 olive cultivars in Turkey, using microsatellite or simple sequence repeat markers. Nine well-known foreign olive cultivars from different countries are also included in the study to compare the Turkish cultivars. To determine genetic relationship and diversity, 10 SSR loci (DCA3, DCA9, DCA15, DCA18, UDO4, UDO9, UDO11, UDO12, UDO24, UDO28) were used. Jaccard's similarity coefficient and the UPGMA method for cluster analysis were performed using the software NTSYSpc. The results showed that the number of alleles per locus ranging from 4 (UDO4, UDO9, UDO11, UDO12, DCA15) to 12 (DCA9) presenting high polymorphism. There were no identical cultivars. High similarity was shown by cultivars Maviand Adana topağı (0.754). The most genetically divergent cultivars, Domat-Meski (0.240) and Domat-NizipYağlık (0.245), were also identified.

The use of cultivars of Raphanus sativus for cytokinin bioassay

Directory of Open Access Journals (Sweden)

Dorota Kubowicz

2013-12-01

Full Text Available Six cultivars of radish (Raphanus sativus were tested for their usefulness in radish cytokinin bioassay by the method of Letham (1971. The best cultivar was found to be 'Sopel Lodu' which responds well to both zeatin and 2iP over a wide range of concentrations. The fresh weight of cotyledons increased at most by 71.5% (if treated with zeatin or 101.0% (if treated with 2iP compared to untreated cotyledons. This cultivar is also sensitive to the partially purified cytokinin-like fraction isolated from the pine (Pinus silvestris cambial region. The cultivar 'Sopel Lodu' is therefore proposed to be a suitable plant for cytokinin bioassays.

Importância das interações cultivares x locais e cultivares x anos na avaliação de milho na safrinha

Directory of Open Access Journals (Sweden)

Flávia Maria Avelar Gonçalves

1999-07-01

Full Text Available Com o objetivo de verificar a importância da interação cultivares x locais e cultivares x anos e de identificar entre os híbridos já disponíveis os que sejam mais adaptados e estáveis para o cultivo em safrinha, foram estimados os parâmetros de adaptabilidade e estabilidade a partir de dados obtidos em experimentos de avaliação de cultivares de milho na safrinha, nos anos de 1993, 1994 e 1995. Esses experimentos foram conduzidos nos Estados de São Paulo, Goiás e Paraná. O delineamento utilizado foi em blocos casualizados com três repetições. Constatou-se que a magnitude da variância da interação cultivares com anos dentro de locais foi mais expressiva do que entre locais, o que indica a necessidade de que as avaliações de cultivares na safrinha sejam realizadas num maior número de anos. As cultivares diferiram quanto à adaptabilidade e estabilidade de produção de grãos. Os materiais que se destacaram como mais adaptados e estáveis foram o híbrido simples Zeneca 8452, o híbrido triplo C 805 e o híbrido duplo Agromen 2012. Já os híbridos duplos BR 201, Planagri 411, AG 303 e C 125 foram os que mostraram menor adaptação e maior instabilidade.

Altered cultivar resistance of kimchi cabbage seedlings mediated by salicylic Acid, jasmonic Acid and ethylene.

Science.gov (United States)

Lee, Young Hee; Kim, Sang Hee; Yun, Byung-Wook; Hong, Jeum Kyu

2014-09-01

Two cultivars Buram-3-ho (susceptible) and CR-Hagwang (moderate resistant) of kimchi cabbage seedlings showed differential defense responses to anthracnose (Colletotrichum higginsianum), black spot (Alternaria brassicicola) and black rot (Xanthomonas campestris pv. campestris, Xcc) diseases in our previous study. Defense-related hormones salicylic acid (SA), jasmonic acid (JA) and ethylene led to different transcriptional regulation of pathogenesis-related (PR) gene expression in both cultivars. In this study, exogenous application of SA suppressed basal defenses to C. higginsianum in the 1st leaves of the susceptible cultivar and cultivar resistance of the 2nd leaves of the resistant cultivar. SA also enhanced susceptibility of the susceptible cultivar to A. brassicicola. By contrast, SA elevated disease resistance to Xcc in the resistant cultivar, but not in the susceptible cultivar. Methyl jasmonate (MJ) treatment did not affect the disease resistance to C. higginsianum and Xcc in either cultivar, but it compromised the disease resistance to A. brassicicola in the resistant cultivar. Treatment with 1-aminocyclopropane-1-carboxylic acid (ACC) ethylene precursor did not change resistance of the either cultivar to C. higginsianum and Xcc. Effect of ACC pretreatment on the resistance to A. brassicicola was not distinguished between susceptible and resistant cultivars, because cultivar resistance of the resistant cultivar was lost by prolonged moist dark conditions. Taken together, exogenously applied SA, JA and ethylene altered defense signaling crosstalk to three diseases of anthracnose, black spot and black rot in a cultivar-dependent manner.

Altered Cultivar Resistance of Kimchi Cabbage Seedlings Mediated by Salicylic Acid, Jasmonic Acid and Ethylene

Directory of Open Access Journals (Sweden)

Young Hee Lee

2014-09-01

Full Text Available Two cultivars Buram-3-ho (susceptible and CR-Hagwang (moderate resistant of kimchi cabbage seedlings showed differential defense responses to anthracnose (Colletotrichum higginsianum, black spot (Alternaria brassicicola and black rot (Xanthomonas campestris pv. campestris, Xcc diseases in our previous study. Defense-related hormones salicylic acid (SA, jasmonic acid (JA and ethylene led to different transcriptional regulation of pathogenesis-related (PR gene expression in both cultivars. In this study, exogenous application of SA suppressed basal defenses to C. higginsianum in the 1st leaves of the susceptible cultivar and cultivar resistance of the 2nd leaves of the resistant cultivar. SA also enhanced susceptibility of the susceptible cultivar to A. brassicicola. By contrast, SA elevated disease resistance to Xcc in the resistant cultivar, but not in the susceptible cultivar. Methyl jasmonate (MJ treatment did not affect the disease resistance to C. higginsianum and Xcc in either cultivar, but it compromised the disease resistance to A. brassicicola in the resistant cultivar. Treatment with 1-aminocyclopropane-1-carboxylic acid (ACC ethylene precursor did not change resistance of the either cultivar to C. higginsianum and Xcc. Effect of ACC pretreatment on the resistance to A. brassicicola was not distinguished between susceptible and resistant cultivars, because cultivar resistance of the resistant cultivar was lost by prolonged moist dark conditions. Taken together, exogenously applied SA, JA and ethylene altered defense signaling crosstalk to three diseases of anthracnose, black spot and black rot in a cultivar-dependent manner.

Morphogenic variability of some autochthonous plum cultivars in western Serbia

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Tomo Milosevic

2010-12-01

Full Text Available A study conducted over a period of two years in a Western Serbian valley included in situ identification of autochthonous plum cultivars. Observation and recording of their phenological and pomological traits were performed using IBPGR and UPOV methodologies. Fifteen cultivars derived from Prunus domestica L. and two cultivars derived from P. insititia L. were identified. Flowering started between 24 March and 7 April and fruit ripening between 12 July (Petrovača and 16 September (Trnovača. Fruit weight ranged from 6.79± 0.018 to 36.62± 0.251 g and stone weight from 0.14± 0.002 to 1.95± 0.023 g. The cultivars were classified as being extremely small in terms of fruit size. Rounded fruit shape and light-yellow ground colour were dominant. Skin colour ranged from amber to black. Yellow green was a dominant flesh colour and medium flesh firmness predominated. The fruits of the above cultivars could be processed, particularly into plum brandy, or they could be used fresh or dried. The selected plum cultivars can be used both in breeding programmes and as rootstocks as well as in further disease-related systematic studies under field and laboratory conditions.

SSR Analysis of Genetic Diversity Among 192 Diploid Potato Cultivars

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Xiaoyan Song

2016-05-01

Full Text Available In potato breeding, it is difficult to improve the traits of interest at the tetraploid level due to the tetrasomic inheritance. A promising alternative is diploid breeding. Thus it is necessary to assess the genetic diversity of diploid potato germplasm for efficient exploration and deployment of desirable traits. In this study, we used SSR markers to evaluate the genetic diversity of diploid potato cultivars. To screen polymorphic SSR markers, 55 pairs of SSR primers were employed to amplify 39 cultivars with relatively distant genetic relationships. Among them, 12 SSR markers with high polymorphism located at 12 chromosomes were chosen to evaluate the genetic diversity of 192 diploid potato cultivars. The primers produced 6 to 18 bands with an average of 8.2 bands per primer. In total, 98 bands were amplified from 192 cultivars, and 97 of them were polymorphic. Cluster analysis using UPGMA showed the genetic relationships of all accessions tested: 186 of the 192 accessions could be distinguished by only 12 pairs of SSR primers, and the 192 diploid cultivars were divided into 11 groups, and 83.3% constituted the first group. Clustering results showed relatively low genetic diversity among 192 diploid cultivars, with closer relationship at the molecular level. The results can provide molecular basis for diploid potato breeding.

Six cultivars of Solanum macrocarpon (Solanaceae in Ghana

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Z. R. Bukenya

1987-10-01

Full Text Available The  Solanum macrocarpon complex (the cultivated egg plant has been studied in Ghana using morphological and experimental methods. Six cultivars belonging to the S.  macrocarpon complex have been recognized and described. The cultivars are  S. macrocarpon ‘Gboma’,  S. macrocarpon ‘Mankessim’,  S. macrocarpon ‘Akwaseho’,  S. macrocarpon ‘Kade’,  S. macrocarpon ‘Sarpeiman’ and  S. macrocarpon ‘Bui’. The very spiny, hairy plant traditionally called S. dasyphyllum is regarded as the wild ancestor from which the cultivars have been derived through a process of crop evolution. The variation within S. macrocarpon complex is attributable to genotypic differences and environmental factors.

Severidade de ferrugem polissora em cultivares de milho e seu efeito na produtividade Severity of southern rust in maize cultivars and its effect on yield

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Christina Dudienas

2013-03-01

Full Text Available A ferrugem polissora, causada por Puccinia polysora Underw. é uma das doenças mais destrutivas da cultura do milho, ocorrendo em importantes áreas de produção desta cultura no Brasil. A principal forma de controle desta doença é o uso de cultivares resistentes, havendo no mercado um grande número de cultivares com diferentes graus de resistência. O objetivo deste trabalho foi avaliar a reação de cultivares comerciais de milho quanto à resistência à ferrugem polissora, em diferentes localidades no Estado de São Paulo, correlacionando com a produtividade. Foram avaliados 50 híbridos simples e triplos (HST e 22 híbridos duplos e variedades de milho (HDV em uso pelos agricultores no ano agrícola 2005/2006 quanto à sua reação à ferrugem polissora em seis locais nas regiões oeste e centro-norte do Estado de São Paulo. Nos experimentos com HST, as cultivares mais resistentes e que tiveram as maiores produtividades foram: 30F80, 30F90, 30K73, AG 7000, DAS 2B710, DKB 191, DKB 466 e Impacto. Dentre os HDV, destacaram-se como as mais resistentes e apresentando as maiores produtividades: 30S40 e AG 2040. A redução de produtividade em função da severidade da ferrugem polissora, avaliada no estádio de grãos pastosos, variou de 3,5% para cultivares com aproximadamente 2,5% de área foliar afetada a 20,3% para cultivares com, em média, 39% de área foliar afetada, em relação às cultivares com maior resistência à doença (1,4% de área foliar afetada.Southern rust, caused by Puccinia polysora Underw., has become one of the most destructive diseases affecting maize, occurring in important areas of production of this crop in Brazil. Using resistant cultivars is the most efficient means to control this disease, and there are a large number of cultivars with different resistance degrees in the market. The aim of this study was to evaluate the reaction of commercial maize cultivars for resistance to southern rust in different

Grain legume cultivars derived from induced mutations, and mutations affecting nodulation

International Nuclear Information System (INIS)

Bhatia, C.R.; Maluszynski, M.; Nichterlein, K.; Zanten, L. van

2001-01-01

Two hundred and sixty-five grain legume cultivars developed using induced mutations have been released in 32 countries. A maximum number of cultivars have been released in soybean (58), followed by common bean (50), groundnut (44), pea (32) and mungbean (14). Gamma or x-ray exposures of seeds led to the direct development of 111 cultivars, while neutron and chemical mutagen treatments resulted in 8 and 36 cultivars respectively. One hundred and three cultivars have been developed using mutants in cross breeding. Attempts have been made to estimate the successful dose range for gamma and x-rays, defined as the dose range, which led to the development, registration and release of a maximum number of mutant cultivars. Exposures to seeds ranging between 100-200 Gy in all grain legumes, except faba bean, resulted in 49 out of 111 cultivars being developed as direct mutants. Successful doses reported for faba bean are lower than 100 Gy. Modified crop plant characters are listed. Besides the development of new cultivars, a large number of induced mutants that show altered nodulation pattern have been isolated in grain legumes. Such mutants have made a significant contribution in basic studies on host-symbiont interactions and towards cloning of plant genes related to symbiosis and nitrogen fixation. Their exploitation in breeding programs for enhancing nitrogen fixation is just beginning. Available information on nodulation mutants in grain legume crops is summarised. Mainly, four types of nodulation mutants have been isolated. They show either: no nodulation (nod -), few nodules (nod +/-), ineffective nodulation (Fix-), hypernodulation (nod ++) or hypernodulation even in the presence of otherwise inhibitory nitrate levels (nts). Hypernodulating and nts mutants are of great interest. A soybean cultivar incorporating nts trait has been released in Australia. (author)

Root Differentiation of Agricultural Plant Cultivars and Proveniences Using FTIR Spectroscopy

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Nicole Legner

2018-06-01

Full Text Available The differentiation of roots of agricultural species is desired for a deeper understanding of the belowground root interaction which helps to understand the complex interaction in intercropping and crop-weed systems. The roots can be reliably differentiated via Fourier transform infrared spectroscopy with attenuated total reflection (FTIR-ATR. In two replicated greenhouse experiments, six pea cultivars, five oat cultivars as well as seven maize cultivars and five barnyard grass proveniences (n = 10 plants/cultivar or provenience were grown under controlled conditions. One root of each plant was harvested and five different root segments of each root were separated, dried and measured with FTIR-ATR spectroscopy. The results showed that, firstly, the root spectra of single pea and single oat cultivars as well as single maize and single barnyard grass cultivars/proveniences separated species-specific in cluster analyses. In the majority of cases the species separation was correct, but in a few cases, the spectra of the root tips had to be omitted to ensure the precise separation between the species. Therefore, species differentiation is possible regardless of the cultivar or provenience. Consequently, all tested cultivars of pea and oat spectra were analyzed together and separated within a cluster analysis according to their affiliated species. The same result was found in a cluster analysis with maize and barnyard grass spectra. Secondly, a cluster analysis with all species (pea, oat, maize and barnyard grass was performed. The species split up species-specific and formed a dicotyledonous pea cluster and a monocotyledonous cluster subdivided in oat, maize and barnyard grass subclusters. Thirdly, cultivar or provenience differentiations within one species were possible in one of the two replicated experiments. But these separations were less resilient.

Common bean grain yield as affected by sulfur fertilization and cultivars

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Adriano Stephan Nascente

Full Text Available ABSTRACT A better understanding of the differential growth of common bean cultivars with increasing soil sulfur (S availability can indicate how to improve common bean grain yield in soils of Savannas. The objective of this study was to evaluate the response of sprinkler-irrigated common bean cultivars to sulfur fertilization in a no-tillage system. The experiment was designed as a randomized block in a split-plot scheme with sulfur rates (0, 10, 20, 40, and 60 kg ha-1 as main plots and common bean cultivars (BRS Requinte, BRS Cometa, Diamante Negro, BRS Grafite, BRS Valente, and Corrente as subplots, with three replications. Common bean cultivars did not differ regarding grain yield response to sulfur rates, which fitted to a quadratic equation. Among the cultivars tested, only BRS Requinte and BRS Valente differed in grain yield for S fertilization, the first being more productive. Moreover, S fertilization allows significant increases in common bean grain yield in average of six cultivars and must be considered in cropping systems aiming for high yields.

Genealogy of wine grape cultivars: "Pinot" is related to "Syrah".

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Vouillamoz, J F; Grando, M S

2006-08-01

Since the domestication of wild grapes ca 6000 years ago, numerous cultivars have been generated by spontaneous or deliberate crosses, and up to 10 000 are still in existence today. Just as in human paternity analysis, DNA typing can reveal unexpected parentage of grape cultivars. In this study, we have analysed 89 grape cultivars with 60 microsatellite markers in order to accurately calculate the identity-by-descent (IBD) and relatedness (r) coefficients among six putatively related cultivars from France ("Pinot", "Syrah" and "Dureza") and northern Italy ("Teroldego", "Lagrein" and "Marzemino"). Using a recently developed likelihood-based approach to analyse kinship in grapes, we provide the first evidence of a genetic link between grapes across the Alps: "Dureza" and "Teroldego" turn out to be full-siblings (FS). For the first time in grapevine genetics we were able to detect FS without knowing one of the parents and identify unexpected second-degree relatives. We reconstructed the most likely pedigree that revealed a third-degree relationship between the worldwide-cultivated "Pinot" from Burgundy and "Syrah" from the Rhone Valley. Our finding was totally unsuspected by classical ampelography and it challenges the commonly assumed independent origins of these grape cultivars. Our results and this new approach in grape genetics will (a) help grape breeders to avoid choosing closely related varieties for new crosses, (b) provide pedigrees of cultivars in order to detect inheritance of disease-resistance genes and (c) open the way for future discoveries of first- and second-degree relationships between grape cultivars in order to better understand viticultural migrations.

Divergência genética entre cultivares de gérbera utilizando marcadores RAPD Genetic divergence among cultivars of gerbera using RAPD markers

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Rodrigo Kelson Silva Rezende

2009-11-01

Full Text Available No processo de produção comercial de mudas de gérbera, a cor da flor é uma das principais características morfológicas de interesse agronômico, sendo uma característica importante em programas de melhoramento genético. A utilização de marcadores moleculares pode servir para direcionar cruzamentos, confirmar novos híbridos ou genótipos mutantes e identificar novos genótipos para fins comerciais. Nesse contexto, o objetivo deste trabalho foi analisar a divergência genética entre seis cultivares de Gerbera jamesonii ('Jaguar Yellow', 'Jaguar Cream', 'Jaguar Lemon', 'Jaguar Salmon Pastel', 'Jaguar Red', 'Jaguar Deep Rose'. A análise de divergência genética entre as cultivares de gérbera foi realizada utilizando-se 21 primers, os quais amplificaram 37 fragmentos polimórficos de DNA, que foram usados para estimar o coeficiente de Jaccard, o qual apresentou uma média de 0,38, variando de 0,28 a 0,56. A estrutura genética entre as cultivares foi estimada pelo UPGMA, revelando dois grupos distintos, a 38% de similaridade genética. A maior similaridade genética encontrada (56% foi entre as cultivares 'Jaguar Yellow' e 'Jaguar Lemon'. Os resultados demonstram que a técnica RAPD oferece uma maneira rápida, relativamente barata e útil para a caracterização da divergência genética entre as diferentes cultivares de Gerbera jamesonii com relação à cor da flor.During the commercial production of gerbera seedlings, flower color is one of the main morphological aspects that have an agronomic interest and becoming an important feature in genetic breeding programs. The use of molecular markers may serve to direct crossings, new hybrids and mutants, besides confirm and identify new genotypes for commercial purposes. In that context, this work aimed to analyze the genetic divergence among six cultivars of Gerbera jamesonii ('Jaguar Yellow', 'Jaguar Cream', 'Jaguar Lemon', 'Jaguar Salmon Pastel', 'Jaguar Red', 'Jaguar Deep Rose'. The

Entrepreneurship in Montana. A Handbook for Integrating Entrepreneurship into All Vocational Areas.

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Harris, Ronald R.

This handbook was developed to provide vocational education teachers in Montana with information about entreprenuership so that they can integrate the concepts into their vocational courses. The guide provides a definition of entrepreneurship and describes the syllabus for entrepreneurship (ownership, location, financing, personnel, promotion,…

The Study of Phenological and Morphophysiological Traits of New and Old Barely Shoot Cultivars

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N Moshfeghi

2015-07-01

Full Text Available In order to compare morphophysiological traits between new and old cultivars of barley (Hordeum vulgare L. a greenhouse experiment was conducted in greenhouse condition in Faculty of Agriculture, Ferdowsi University of Mashhad in spring and summer 2011.The type of experiment was a completely randomized design with eight treatments (Nosrat , Youssof , Fagr30 , Nick and four old cultivars include (Reihan, Kavir, Zarjo , Valfajr and three replications. All seeds were grown in PVC tubes contained washed sands and disruptive sampling was occurred with destroying plastic bags in the end of the four stages uncluding 6th leaf stage, jointing, heading and ripening. Results indicated that new cultivars showed better performances in all shoot growth parameters than the old cultivars. Modern cultivars for most traits, particularly traits that were positively correlated with yield and its components proved more successful than the old cultivars. They had longer reproductive periods and grain filling duration but their vegetative period were shorter than old cultivars. Among shoots characteristics, new cultivars had higher leaf area, stem dry weight and stem length than old cultivars. Result of this study showed that, among all the characteristics of grain yield and yield components, such as grain weight ,spike length, spike per plant, grain per spike and number tiller , new figures were better than old figures. In general, new cultivar Nick was introduced as the best cultivar and Zarjo was introduced as the weakest cultivar.

Características agronômicas e o estado nutricional de cultivares de girassol irrigado Agronomic characteristics and nutritional status of irrigated sunflower cultivars

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Leonardo A. de Aquino

2013-05-01

Full Text Available Objetivou-se, neste trabalho, avaliar o estado nutricional, caracteres agronômicos e a produtividade de cultivares de girassol sob irrigação. Os cultivares Embrapa 122 V-2000, Hélio 250, Hélio 251, Hélio 253, Hélio 358, Hélio 360, IAC Iarama, Dow Agroscience M 734 e MG 02, foram semeados em blocos ao acaso, com quatro repetições. O número de folhas por planta no florescimento foi maior nos híbridos Hélio 250, Hélio 251, Hélio 253, Hélio 358, Hélio 360, Dow Agroscience M 734 e MG 02, em relação aos cultivares de polinização aberta Embrapa 122 V-2000 e IAC Iarama. Os teores foliares de N, P, K, Ca, Mg e S foram 40,91; 3,51; 35,91; 33,91; 6,23 e 7,88 g kg-1, respectivamente. Os cultivares Embrapa 122 V-2000 e IAC-Iarama apresentaram teor de P na folha índice menor que os demais cultivares. Os teores foliares de Zn, Cu, Fe e o Mn foram 75,15; 24,11; 98,39 e 348,10 mg kg-1, respectivamente. O teor médio de B na folha índice nos híbridos e nas variedades de polinização aberta foi de 119,25 e 140,35 mg kg-1, respectivamente. Os cultivares Hélio 250, Hélio 251, Hélio 253, Hélio 358, Hélio 360, Dow Agroscience M 734 e MG 02 apresentaram maior produtividade que o Embrapa 122 V-2000 e o IAC Iarama.This work aimed to assess nutritional status, agronomic characteristics, and productivity of sunflower cultivars under irrigation. Embrapa 122 V-2000, Hélio 250, Hélio 251, Hélio 253, Hélio 358, Hélio 360, IAC Iarama, and Dow Agroscience M 734 and MG 02 cultivars were sown in randomized block design with four replications. The number of leaves per plant in full bloom was higher in hybrid Hélio 250, Hélio 251, Hélio 253, Hélio 358, Hélio 360 and Dow Agroscience MG 734 and M 02 related to open-pollinated cultivars Embrapa 122 V-2000 and IAC Iarama. Foliar contents of N, P, K, Ca, Mg, and S were 40.91, 3.51, 35.91, 33.91, 6.23, and 7.88 g kg-1, respectively. Embrapa 122 V-2000 and IAC-Iarama cultivars showed an average

Adaptability and phenotypic stability of soybean cultivars for grain yield and oil content.

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Silva, K B; Bruzi, A T; Zuffo, A M; Zambiazzi, E V; Soares, I O; de Rezende, P M; Fronza, V; Vilela, G D L; Botelho, F B S; Teixeira, C M; de O Coelho, M A

2016-04-25

The aim of this study was to verify the adaptability and stability of soybean cultivars with regards to yield and oil content. Data of soybean yield and oil content were used from experiments set up in six environments in the 2011/12 and 2012/13 crop seasons in the municipalities of Patos de Minas, Uberaba, Lavras, and São Gotardo, Minas Gerais, Brazil, testing 36 commercial soybean cultivars of both conventional and transgenic varieties. The Wricke method and GGE biplot analysis were used to evaluate adaptability and stability of these cultivars. Large variations were observed in grain yield in relation to the different environments studied, showing that these materials are adaptable. The cultivars exhibited significant differences in oil content. The cultivars BRSGO204 (Goiânia) and BRSMG (Garantia) exhibited the greatest average grain yield in the different environments studied, and the cultivar BRSMG 760 SRR had the greatest oil content among the cultivars evaluated. Ecovalence was adopted to identify the most stable cultivars, and the estimates were nearly uniform both for grain yield and oil content, showing a variation of 0.07 and 0.01%, respectively. The GGE biplot was efficient at identifying cultivars with high adaptability and phenotype stability.

Cultivares de mamoneira e adubação nitrogenada na formação de mudas = Castor bean cultivars and nitrogen fertilization in the formation of seedlings

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Helen Cristina de Arruda Rodrigues

2010-07-01

Full Text Available Objetivou-se com este trabalho avaliar a influência de nitrogênio nodesenvolvimento de mudas de cultivares de mamona. O experimento foi conduzido em casa-de-vegetação, no Setor de Cafeicultura do Departamento de Agricultura da UFLA, Lavras, Estado de Minas Gerais, utilizando-se quatro doses de nitrogênio N (0, 150, 300 e 450 mg kg-1 de substrato em três cultivares de mamona (AL-Guarani, Nordestina eMirante-10. O delineamento experimental foi o de blocos casualizados com três repetições e duas plantas por parcela. Foram avaliados parâmetros referentes ao crescimento das mudas. De acordo com os resultados obtidos, a aplicação de nitrogênio prejudicou o crescimento das mudas em todas as cultivares avaliadas. A cultivar Mirante-10 destacou-se das demais.The objective of this study was to evaluate the influence of nitrogen on the development of seedlings of castor bean cultivars. The experiment was conducted in a greenhouse at the of the Department of Agriculture at the Federal University of Lavras, Lavras, Minas Gerais State, using four levels of nitrogen (0, 150, 300 and 450 mg kg-1 inthree cultivars of castor bean (AL-Guarani, Nordestina and Mirante 10. The experimental design was a randomized block design with three replications and two plants per plot. Parameters were evaluated for the growth of seedlings. According to the obtained results, the application of nitrogen decreased the growth of seedlings in all cultivars. Cultivar Mirante-10 stood out from the others.

Cultivares de soja sob plantio direto em Latossolo Vermelho compactado = Soybean cultivars under no-till on a compacted oxisol

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Neyde Fabíola Balarezo Giarola

2009-10-01

Full Text Available O processo de compactação pode modificar os atributos físicos do solo a ponto de limitar o potencial genético de desenvolvimento de culturas agrícolas ou de cultivares mais sensíveis. O objetivo deste trabalho foi avaliar, em Latossolo Vermelho Eutroférrico típico, a resposta de parâmetros de produção de cultivares de soja (Glycine max L. Merrill e atributos físicos do solo ao sistema plantio direto em condições de lavoura e com compactação adicional. O estudo foi conduzido na C-Vale Cooperativa Agroindustrial, em Palotina, Estado do Paraná. Foram avaliados dois tratamentos de solo: sistema plantio direto sem compactação adicional (SPD-C0 e sistema plantio direto com compactação adicional (PD-C1, e cinco cultivares de soja: (1 Coodetec 204, (2 Coodetec 215, (3 Monsoy 5942,(4 Embrapa 48 e (5 Spring. Adotou-se o delineamento experimental inteiramente casualizado em esquema fatorial 5 X 2. Os atributos de solo avaliados foram: densidade do solo, porosidade total, macro e microporosidade. Nas plantas, foram avaliadas as seguintes variáveis: fitomassa seca, altura de plantas, altura de inserção da primeira vagem, massa demil grãos e produtividade. Os resultados demonstraram que as variáveis de produção das cultivares de soja não foram influenciados pelos diferentes níveis de compactação do solo, e as diferenças observadas se deveram às características das próprias cultivares.The compaction process can promote changes in the physical attributes of soil, to the point of limiting the genetic potential for the development of more sensitive agricultural crops or cultivars. Thegoal of this study was to evaluate, on a clayed Red Latosol (Oxisol, the response of production parameters of different varieties of soybean (Glycine max and physical attributes of soil under tillage farming, and with additional compression. The study was conducted at C-Valley Agroindustrial Cooperative, in Palotina (Paraná State. Two treatments

Molecular characterization of olive cultivars grown in Iraq using ...

African Journals Online (AJOL)

husam

database for Iraqi olive cultivars, in breeding strategies and in correct cultivar identification. Key words: Olea europaea, genetic diversity ... cultivated fruit tree species in the Mediterranean basin. It is a predominant allogamous species .... carried out using an automatic DNA analyzer (Model 3100 Prism;. Applied Biosystems).

Unraveling the genetic structure of Brazilian commercial sugarcane cultivars through microsatellite markers.

Science.gov (United States)

Manechini, João Ricardo Vieira; da Costa, Juliana Borges; Pereira, Bruna Turcatto; Carlini-Garcia, Luciana Aparecida; Xavier, Mauro Alexandre; Landell, Marcos Guimarães de Andrade; Pinto, Luciana Rossini

2018-01-01

The Brazilian sugarcane industry plays an important role in the worldwide supply of sugar and ethanol. Investigation into the genetic structure of current commercial cultivars and comparisons to the main ancestor species allow sugarcane breeding programs to better manage crosses and germplasm banks as well as to promote its rational use. In the present study, the genetic structure of a group of Brazilian cultivars currently grown by commercial producers was assessed through microsatellite markers and contrasted with a group of basic germplasm mainly composed of Saccharum officinarum and S. spontaneum accessions. A total of 285 alleles was obtained by a set of 12 SSRs primer pairs that taken together were able to efficiently distinguish and capture the genetic variability of sugarcane commercial cultivars and basic germplasm accessions allowing its application in a fast and cost-effective way for routine cultivar identification and management of sugarcane germplasm banks. Allelic distribution revealed that 97.6% of the cultivar alleles were found in the basic germplasm while 42% of the basic germplasm alleles were absent in cultivars. Of the absent alleles, 3% was exclusive to S. officinarum, 33% to S. spontaneum and 19% to other species/exotic hybrids. We found strong genetic differentiation between the Brazilian commercial cultivars and the two main species (S. officinarum: [Formula: see text] = 0.211 and S. spontaneum: [Formula: see text] = 0.216, Pcommercial cultivars. Average dissimilarity within cultivars was 1.2 and 1.4 times lower than that within S. officinarum and S. spontaneum. Genetic divergence found between cultivars and S. spontaneum accessions has practical applications for energy cane breeding programs as the choice of more divergent parents will maximize the frequency of transgressive individuals in the progeny.

Breeders’ work after cultivar development - the stage of recommendation

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Luiz Carlos Federizzi

2012-12-01

Full Text Available The development of new cultivars is the ultimate goal of breeding programs and is the result of many years of hard work and dedication of breeders and their teams. An important part of the process, often neglected by geneticists, is the stage from recommendation to the production of breeder seed (post-breeding. This paper discusses the role of the breeder in the recommendation, registration, protection and marketing of new cultivars. The breeder’s active participation in all phases of post-breeding is fundamental to ensure that the cultivar reaches farmers quickly and can provide the benefits expected by society

A century of climate and ecosystem change in Western Montana: What do temperature trends portend?

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Pederson, G.T.; Graumlich, L.J.; Fagre, D.B.; Kipfer, T.; Muhlfeld, C.C.

2010-01-01

The physical science linking human-induced increases in greenhouse gasses to the warming of the global climate system is well established, but the implications of this warming for ecosystem processes and services at regional scales is still poorly understood. Thus, the objectives of this work were to: (1) describe rates of change in temperature averages and extremes for western Montana, a region containing sensitive resources and ecosystems, (2) investigate associations between Montana temperature change to hemispheric and global temperature change, (3) provide climate analysis tools for land and resource managers responsible for researching and maintaining renewable resources, habitat, and threatened/endangered species and (4) integrate our findings into a more general assessment of climate impacts on ecosystem processes and services over the past century. Over 100 years of daily and monthly temperature data collected in western Montana, USA are analyzed for long-term changes in seasonal averages and daily extremes. In particular, variability and trends in temperature above or below ecologically and socially meaningful thresholds within this region (e.g., -17.8??C (0??F), 0??C (32??F), and 32.2??C (90??F)) are assessed. The daily temperature time series reveal extremely cold days (??? -17.8??C) terminate on average 20 days earlier and decline in number, whereas extremely hot days (???32??C) show a three-fold increase in number and a 24-day increase in seasonal window during which they occur. Results show that regionally important thresholds have been exceeded, the most recent of which include the timing and number of the 0??C freeze/thaw temperatures during spring and fall. Finally, we close with a discussion on the implications for Montana's ecosystems. Special attention is given to critical processes that respond non-linearly as temperatures exceed critical thresholds, and have positive feedbacks that amplify the changes. ?? Springer Science + Business Media B

Evaluation of Local Wheat Cultivars Susceptibility to infection with Black Stem Rust

International Nuclear Information System (INIS)

Batta, Y.A.

2007-01-01

The present study was conducted to assess the susceptibility of seven local wheat cultivars from Palestine to infection with black stem rust caused by Puccinia graminis f. sp. tritici. Two techniques of disease inoculation were applied during bioassays: global inoculation of entire wheat plants with urediospores and localized inoculation with urediospores and localized inoculation with urediospores on wheat leaf-pieces incubated under humid conditions. Susceptibility of tested cultivars was evaluated according to disease scale based on number and size of typical unredial pustules that appeared after inoculation on entire plants or leaf pieces. Results obtained on bioassay of susceptibility and disease rating on entire plants indicated that Anbar, Kamata and Hetiya safra cultivars were the least susceptible to P. g. tritici infection, whereas Debiya beda cultivar was the most susceptible. The other tested cultivars such as Nab-El-Jama, sawda and Senf 870 were moderately susceptible. On leaf-pieces, Anbar and Kamatat were the least susceptible cultivars, whereas Debiya beda and Nab-El-Jamal were the most susceptible cultivars. The other tested cultivars such as Debiya swada, Senf 870 and Hetiya safra were moderately susceptible. Significant reductions were obtained for the size of unredial postules formed on leaf-pieces when inoculated in an unwounded state compared to the wounded indicating the importance of wounds during inoculation. The global results indicated the possibility of using above method of disease inoculating, scaling and rating for evaluation of wheat cultivars susceptibility for the eventual use in breeding program for resistant varieties in Palestine. (author)

Volatile components from mango (Mangifera indica L.) cultivars.

Science.gov (United States)

Pino, Jorge A; Mesa, Judith; Muñoz, Yamilie; Martí, M Pilar; Marbot, Rolando

2005-03-23

The volatile components of 20 mango cultivars were investigated by means of simultaneous distillation-extraction, GC, and GC-MS. Three hundred and seventy-two compounds were identified, of which 180 were found for the first time in mango fruit. The total concentration of volatiles was approximately 18-123 mg/kg of fresh fruit. Terpene hydrocarbons were the major volatiles of all cultivars, the dominant terpenes being delta-3-carene (cvs. Haden, Manga amarilla, Macho, Manga blanca, San Diego, Manzano, Smith, Florida, Keitt, and Kent), limonene (cvs. Delicioso, Super Haden, Ordonez, Filipino, and La Paz), both terpenes (cv. Delicia), terpinolene (cvs. Obispo, Corazon, and Huevo de toro), and alpha-phellandrene (cv. Minin). Other qualitative and quantitative differences among the cultivars could be demonstrated.

77 FR 31873 - Notice of Public Meeting; Central Montana Resource Advisory Council

Science.gov (United States)

2012-05-30

... Main, Lewistown, Montana 59457, (406) 538-1900, [email protected] . Persons who use a... to contact the above individual during normal business hours. The FIRS is available 24 hours a day, 7... normal business hours. SUPPLEMENTARY INFORMATION: This 15-member council advises the Secretary of the...

Potential effects of climate change on streamflow for seven watersheds in eastern and central Montana

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Katherine J. Chase

2016-09-01

New hydrological insights for the region: Projected changes in mean annual and mean monthly streamflow vary by the RegCM3 model selected, by watershed, and by future period. Mean annual streamflows for all future periods are projected to increase (11–21% for two of the four central Montana watersheds: Middle Musselshell River and Cottonwood Creek. Mean annual streamflows for all future periods are projected to decrease (changes of −24 to −75% for Redwater River watershed in eastern Montana. Mean annual streamflows are projected to increase slightly (2–15% for the 2030 period and decrease (changes of −16 to −44% for the 2080 period for the four remaining watersheds.

Farmers\\' Perception Of Improved And Local Cassava Cultivars In ...

African Journals Online (AJOL)

Quantity of the byproduct of cassava, taste of byproduct, maturity time and disease resistance significantly contributed to farmers' perception of the cassava cultivars. Apart from good agronomic characteristics of disease resistance and early maturity, farmers' perception of cultivars is also tied to food value issues, field ...

Measurement of lipid transfer protein in 88 apple cultivars

NARCIS (Netherlands)

Sancho, Ana I.; van Ree, Ronald; van Leeuwen, Astrid; Meulenbroek, Bert J.; van de Weg, Eric W.; Gilissen, Luud J. W. J.; Puehringer, Helene; Laimer, Margit; Martinelli, Alessio; Zaccharini, Marzio; Vazquez-Cortes, Sonia; Fernandez-Rivas, Montserrat; Hoffmann-Sommergruber, Karin; Mills, E. N. Clare; Zuidmeer, Laurian

2008-01-01

Background: Fruits are a major cause of food allergy in adults. Lipid transfer proteins (LTP) are implicated in severe allergic reactions to fruits, but little is known about LTP content in different cultivars. Objective: Determination of the levels of LTP in a wide range of apple cultivars.

Resultados agronômicos e qualitativos da nova cultivar de cevada MN 743 Agronomic and qualitative results of the new barley cultivar MN 743

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Eduardo Caierão

2006-02-01

Full Text Available A cevada MN 743, criada pela Cia Brasileira de Bebidas (AmBev foi lançada para cultivo no ano de 2004. Originou-se de um cruzamento simples entre as linhagens MN 681 e GIMPEL, realizado em 1992, no campo experimental da antiga Cia Brahma, no município de Encruzilhada do Sul. A cultivar MN 743 é do tipo duas fileiras, possui ciclo precoce e ampla adaptação às condições do sul do Brasil. Das cultivares disponíveis a nível de produção é a que apresenta a maior classificação comercial (grãos de primeira qualidade. Nos anos em que fez parte do ensaio de Valor de Cultivo e Uso (VCU, sempre apresentou médias competitivas em termos de rendimento corrigido em relação à testemunha de maior área no Brasil, MN 698. Com relação às características qualitativas, apresenta excelente performance no que diz respeito ao teor de extrato e poder diastásico. A cultivar é recomendada para os estados do Rio Grande do Sul, Santa Catarina e Paraná. Devido a seu ótimo desempenho no aspecto qualidade, visando a indústria cervejeira, a cultivar representa um importante avanço para o melhoramento deste cereal no Brasil, aliando os interesses do produtor e da indústria.Barley cultivar MN 743, developed by the Cia. Brasileira de Bebidas (AmBev was released in 2004. It resulted from a simple cross between lines MN 681 x GIMPEL, made in 1992, in the Brahma's Experimental Field - Encruzilhada do Sul/RS. MN 743, a two-rowed type cultivar has early cicle and is broadly adapted to southern Brazil. Among the hight producing cultivars available, it shows higher kernel plumpness (first quality kernel. Over the years it was included in the VCU (cost and use value trial, the cultivar has repeatedly showed competitive means in adjusted yield, as compared to the control occupying the largest cropped area in Brazil, MN 698. Regarding quality characteristics, it has an excellent performance as friability and diastasic power. The cultivar is recomended for all

Resultados agronômicos e qualitativos da nova cultivar de cevada MN 743 Agronomic and qualitative results of the new barley cultivar MN 743

Directory of Open Access Journals (Sweden)

Eduardo Caierão

2005-12-01

Full Text Available A cevada MN 743, criada pela Cia Brasileira de Bebidas (AmBev foi lançada para cultivo no ano de 2004. Originou-se de um cruzamento simples entre as linhagens MN 681 e GIMPEL, realizado em 1992, no campo experimental da antiga Cia Brahma, no município de Encruzilhada do Sul. A cultivar MN 743 é do tipo duas fileiras, possui ciclo precoce e ampla adaptação às condições do sul do Brasil. Das cultivares disponíveis a nível de produção é a que apresenta a maior classificação comercial (grãos de primeira qualidade. Nos anos em que fez parte do ensaio de Valor de Cultivo e Uso (VCU, sempre apresentou médias competitivas em termos de rendimento corrigido em relação à testemunha de maior área no Brasil, MN 698. Com relação às características qualitativas, apresenta excelente performance no que diz respeito ao teor de extrato e poder diastásico. A cultivar é recomendada para os estados do Rio Grande do Sul, Santa Catarina e Paraná. Devido a seu ótimo desempenho no aspecto qualidade, visando a indústria cervejeira, a cultivar representa um importante avanço para o melhoramento deste cereal no Brasil, aliando os interesses do produtor e da indústria.Barley cultivar MN 743, developed by the Cia. Brasileira de Bebidas (AmBev was released in 2004. It resulted from a simple cross between lines MN 681 x GIMPEL, made in 1992, in the Brahma's Experimental Field - Encruzilhada do Sul/RS. MN 743, a two-rowed type cultivar has early cicle and is broadly adapted to southern Brazil. Among the hight producing cultivars available, it shows higher kernel plumpness (first quality kernel. Over the years it was included in the VCU (cost and use value trial, the cultivar has repeatedly showed competitive means in adjusted yield, as compared to the control occupying the largest cropped area in Brazil, MN 698. Regarding quality characteristics, it has an excellent performance as friability and diastasic power. The cultivar is recomended for all

Effect of Planting Date on Physiological and MorphologicalCharacteristics of Four Canola Cultivars in Yasouj

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M. H. Fallah Heki

2012-08-01

Full Text Available In order to study the physiological and morphological characteristics of canola cultivars at different planting dates, an experiment was carried out in 2008-2009 at the Agriculture Research Station of Yasouj. A factorial with Randomized Complete Block Design with four replications was conducted. Four planting dates (September 12, September 22, October 2 and October 12 and four cultivars (Zarfam, Okapi, Elite and SLM-046 were used in this study. Results showed that cultivars and planting dates had significant effects on more characteristics. In addition, interaction of planting date and cultivar was significant on plant height, height to lowest silique, number of branches, growth indices and grain yield. Zarfam and Elite cultivars had lower initial fluorescence (Fo and higher maximum fluorescence (Fm and photochemical capacity of photosystem II (Fv/Fm than Okapi and SLM-046 cultivars. Elite cultivar at September 12 planting date had the highest plant height (173 cm and height to lowest silique (87.5 cm and Okapi cultivar at October 12 planting date showed the lowest plant height (91 cm and height to lowest silique (43.7 cm. At September 12 planting date, Elite cultivar had the greatest leaf area index (5.21 and grain yield (5231 kg/ha. At other planting dates, Zarfam cultivar because of priority in leaf area index, crop growth rate and total dry matter have the greatest grain yield than other cultivars. In general, seems at September 12 planting date, Elite cultivar and for delayed sowing, Zarfam cultivar had better reaction than other cultivars.

Amino Acid Composition of Grape Cultivars ( Vitis Spp.) in Japan

OpenAIRE

Shiraishi, Shin-ichi; 白石, 眞一

1991-01-01

The concentration of free amino acids and other chemical constituents in 75 grape cultivars at maturity were examined. The amino acid concentrations were found to be in decreasing order of arginine, proline, threonine and alanine in Vitis vinifera cultivars and alanine, arginine, threonine and proline in Vitis labmsca cultivars. The concentration of total amino acid was 5,083 ,umol in ‘Campbell Early’ and 3,391 pmol in ‘Yates’, both Vitis labrusca and table grapes. The amounts of total amino ...

PROPAGATION OF NEW BLACKBERRY CULTIVARS FOR PRODUCING CERTIFIED PROPAGATION MATERIAL

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Valentina Isac

2014-12-01

Full Text Available The purpose of this research was to study the behaviour of two new Romanian thorn blackberry cultivars DAR 24 and DAR 8 in process of micropropagation, compared with Darrow cultivar usually commercially micropropagated in our laboratory. Due to several drawbacks of the conventional propagation of Rubus, the efficiency of micropropagation was tested in order to obtain high quality planting material and to introduce rapidly these new cultivars in a certification program. Thorn blackberry cultivars DAR 8 and DAR 24 with resistance to winter colds was successfully micropropagated. Blackberry plants were found without virus infection after biological and ELISA tests. Axillary buds from the branches in full growth were used as the initial explants. After four weeks of growth, aseptic cultures was established on MS basal mineral salts, LS vitamins with 0.3 mg/l BAP, 0.1mg/l GA3 and 0.001mg/l NAA. The rate of successfully established cultures was on average 65.11%. Good proliferation of the regenerated shoots was obtained on the same medium composition used for initiation phase, whereas medium MS with mineral salts reduced to ½ and LS vitamins with 0.1 mg/l IBA and 0.1 mg/l GA3 was used in the rooting phase. Dar 24 and Dar 8 cultivars responded by good rates of micropropagation on medium culture B as compared to control Darrow cultivar, even if the obtained shoots length was lower than on medium A. The statistical analysis reveled that the highest MR (20.66 plantlets/explant was obtained for Dar 24. In this case the length of shoots was 1.92 cm. The highest rooting percentages (over 85% were obtained with shoots multiplied on medium B. High quality of rooted plants induced a high percentage of acclimatization of cultivar Dar 8, 86.36% under mist system in green house whereas the percentage of acclimatization of cultivar Dar 24 was lower, 51.85%.

Field performance of maize (Zea mays L. cultivars under drought stress

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Kazem GHASSEMI-GOLEZANI

2018-04-01

Full Text Available This research was carried out in 2014 at the Research Farm of the University of Tabriz, Iran. The experiment was arranged as split plot on the basis of randomized complete block with three replicates to assess the effects of four irrigation intervals (irrigations after 60, 80, 100 and 120 mm evaporation on physiological and agronomical traits of three cultivars of maize (Zea mays L.; ‘SC704’, ‘NS640’, ‘DC303’: late, mid and early maturing, respectively. Irrigation intervals and maize cultivars were assigned to the main and sub-plots, respectively. Leaf temperature of all maize cultivars significantly increased, but chlorophyll content index, maximum efficiency of photosystem II, number of grains per plant, 1000 grain mass, plant biomass, grain yield and harvest index significantly decreased with increasing irrigation intervals. Late maturing cultivar (‘SC704’ was superior in all studied traits, followed by mid (‘NS640’ and early (‘DC303’ maturing cultivars. It was concluded that water limitation can potentially reduce performance of maize cultivars in the field, but the extent of this reduction depends on genotype and severity of stress.

Chemical characteristics of grape juices from different cultivar and rootstock combinations

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Rita de Cássia Mirela Resende Nassur

2014-07-01

Full Text Available The objective of this work was to evaluate the influence of different combinations of grape cultivars and rootstocks on chemical characteristics of grape juices. Six treatments were evaluated, consisting of combinations between the Isabel Precoce and BRS Cora grape cultivars and the 'IAC 766', 'IAC 313', and 'IAC 572' rootstocks. Approximately 10 L of juice were obtained per treatment. Analyses of color, total soluble solids content, pH, anthocyanins, total phenolics, total sugars, and quantification and identification of biogenic amines by HPLC were performed. Biogenic amines, such as putrescine, cadaverine, spermidine, and spermine, were found in all evaluated cultivars. By principal component analysis (PCA, treatments can be divided into two groups, according to the cultivar. Juices obtained from 'Isabel Precoce' are characterized by higher levels of total sugar content and soluble solids; however, juices from 'BRS Cora' are positively correlated with phenolic content, anthocyanins, and color and acidity parameters. The differences found by PCA for juices from the Isabel Precoce and BRS Cora cultivars indicate that, regardless of the rootstock used, the most important factor in the chemical characterization of juices is the grape cultivar.

DIFFERENCES BETWEEN WHEAT CULTIVARS IN GRAIN PARAMETERS RELATED TO ETHANOL PRODUCTION

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Daniela Mikulíková

2011-12-01

Full Text Available Wheat grain samples from sixteen winter cultivars originated from four localities were evaluated and compared in traits related to ethanol production as grain yield, grain hardness, content of protein, starch and amylose, and α-amylase activity. Results obtained indicate significant differences between cultivars in amylose content, α-amylase activity, and grain hardness compared to grain yield, protein content, and starch content where differences were not significant. The amylose content, α-amylase activity, and grain hardness were affected by cultivar. Both testing methods for starch fermentation - separated hydrolysis and fermentation (SHF and simultaneous saccharification and fermentation (SSF revealed difference between cultivars in ethanol yield.

Genetic identification and characterization of Armenian grapevine cultivars

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Nebish Anna

2017-01-01

Full Text Available Armenia is an important area of crop origins including grapes. The objectives of this study were the molecular characterization of 38 Armenian grape genotypes and the detection of the genetic relationships between the accessions. In total, 164 alleles were obtained at 18 SSRs loci. The number of alleles per locus ranged from 5 to 15 with a mean number of 9.17 alleles per locus. The expected heterozygosity ranged from 0.514 (VVIN73 to 0.90 (VVS2 and the observed heterozygosity from 0.417 (VVIV37 to 0.947 (VVMD7 and VMC1B11. In our research the highest values of polymorphic information content (PIC were obtained using markers VVS2, VRZAG62 and VRZAG79, while the least informative ones were VVIN73 and VVIB01. A high level of gene diversity was observed between ancient and new bred cultivars. Higher values were recorded for the new grape varieties, (He = 0.792 and lower values for ancient cultivars (He = 0.739. The mean number of alleles (MNA for all loci per population ranged from 7.39 in ancient to 8,00 in new crosses. A clear separation was observed for the groups of ancient aboriginal cultivars, Vitis vinifera L.xVitis vinifera L. and Vitis vinifera L. x Vitis amurensis Rupr .crosses, which were bred in Armenia and seedless cultivars. Very close relationships with high similarity were determined for 5 pairs of cultivars. Two cases of possible homonymy were also detected. Our results are the basis for future MAS selection and target breeding.

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

Cultivar e adubação NPK na produção de tomate salada Cultivar and NPK fertilization on yield of fresh market tomato

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Paulo Renato Z. Santos

2001-03-01

Full Text Available O objetivo deste trabalho foi estudar o efeito de cultivar, da adubação NPK e da interação desses fatores na produção de tomate salada tutorado. O experimento foi conduzido em Pelotas (RS no ano agrícola 1995/96. Foram utilizadas cinco cultivares (Flora-Dade, Max, Empire, Pacific e Diva e três níveis (2,0, 3,5 e 5,0 t/ha de adubação NPK (3,6-7,2-10. Os tratamentos foram dispostos sob esquema fatorial em delineamento de blocos casualizados, com três repetições. As cultivares Empire e Pacific apresentaram frutos com maior peso médio do que Flora-Dade, Max e Diva. O número de frutos por planta aumentou com a elevação do nível de adubação de 2,0 para 3,5 t/ha, enquanto que o peso médio de frutos diminuiu, sem alterar a produção. As cultivares apresentaram respostas diferenciais aos níveis de adubação, em relação ao peso médio de frutos.The objective of this work was to study the effect of cultivar, NPK fertilization and the interaction on yield components of fresh market tomatoes. The experiment was carried out in Pelotas, Brazil, in 1995/96 season. Five cultivars (Flora-Dade, Max, Empire, Pacific and Diva and three fertilization levels (2.0, 3.5 and 5.0 t/ha of NPK (3.6-7.2-10 were used. The treatments were displayed under a factorial scheme, in a randomized complete block design, with three repetitions. Empire and Pacific cultivars showed higher average fruit weight than Flora-Dade, Max and Diva. The number of fruits per plant increased with the elevation of fertilization levels from 2.0 to 3.5 t/ha, while the average fruit weight diminished, without changing yield. The cultivars showed differential response to fertilization levels, in relation to average fruit weight.

Selection for Cd Pollution-Safe Cultivars of Chinese Kale (Brassica alboglabra L. H. Bailey) and Biochemical Mechanisms of the Cultivar-Dependent Cd Accumulation Involving in Cd Subcellular Distribution.

Science.gov (United States)

Guo, Jing-Jie; Tan, Xiao; Fu, Hui-Ling; Chen, Jing-Xin; Lin, Xiao-Xia; Ma, Yuan; Yang, Zhong-Yi

2018-02-28

Two pot experiments were conducted to compare and verify Cd accumulation capacities of different cultivars under Cd exposures (0.215, 0.543, and 0.925 mg kg -1 in Exp-1 and 0.143, 0.619, and 1.407 mg kg -1 in Exp-2) and Cd subcellular distributions between low- and high-Cd cultivars. Shoot Cd concentrations between the selected low- and high-Cd cultivars were 1.4-fold different and the results were reproducible. The proportions of Cd-in-cell-wall of shoots and roots were all higher in a typical low-Cd cultivar (DX102) than in a typical high-Cd cultivar (HJK), while those of Cd-in-chloroplast or Cd-in-trophoplast and Cd-in-membrane-and-organelle were opposite. The proportions of Cd-in-vacuoles-and-cytoplasm of roots in DX102 were always higher than in HJK under Cd stresses, while there was no clear pattern in those of shoots. These findings may help to reduce health risk of Cd from Chinese kale consumption and explained biochemical mechanisms of cultivar-dependent Cd accumulation among the species.

Quantifying social preferences toward woody biomass energy generation in Montana, USA

Science.gov (United States)

Robert Campbell; Tyron Venn; Nathaniel Anderson

2015-01-01

A significant amount of the forestland in Montana is in need of mechanical forest restoration treatments, which can improve forest health and reduce wildfire risk, but can be expensive to implement and produce little merchantable timber. One option for disposal of the small diameter material produced by these treatments is to utilize it to produce energy,...

Tolerance to water deficiency between two soybean cultivars: transgenic versus conventional Tolerância à deficiência hídrica entre dois cultivares de soja: transgênico versus convencional

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Tiago Aranda Catuchi

2011-03-01

Full Text Available The main goal of the study was to evaluate the effects on the development and physiological aspects of soybean plants grown under water deficiency at greenhouse conditions, comparing the levels of tolerance to water deficiency between one transgenic and one conventional cultivar, enabling a systematic way to carried out physiological comparisons between soybean cultivars under drought. The study was divided into completely randomized using a factorial 2×2 design, with five replicates. The experimental design included two replenishment levels of daily irrigation (100% and 40%, applied to the leaves during the V4 developmental stage (fourth trifoliate fully expanded and two cultivars, 'CD 202' conventional and 'CD 226RR' transgenic. The results showed that both cultivars had similar effects, caused by water deficiency, on dry mass production, but the transgenic cultivar tended to maintain higher biomass allocation in pods, as well as, higher efficiency of leaves to support dry mass production than conventional cultivar in both water conditions. Moreover, the higher maximum CO2 assimilation values and lower membranes damages in the transgenic cultivar under water deficiency showed that the expected higher drought tolerance of the conventional cultivar was not supported by a more accurate physiological investigation.O principal objetivo do estudo foi avaliar os efeitos sobre o desenvolvimento e aspectos fisiológicos de plantas de soja cultivadas sob deficiência hídrica em condições de casa de vegetação, comparando os níveis de tolerância à deficiência de água entre um cultivar transgênico e um convencional, gerando uma forma sistemática de realizar comparações fisiológicas entre cultivares de soja sob déficit hídrico. O delineamento experimental foi inteiramente casualizado, em esquema fatorial 2×2, com cinco repetições. Os tratamentos hídricos foram dois níveis de reposição de irrigação diária (100% e 40%, aplicados a

78 FR 53158 - Notice of Public Meeting; Central Montana Resource Advisory Council

Science.gov (United States)

2013-08-28

..., Central Montana District Manager, Lewistown Field Office, 920 NE Main, Lewistown, MT 59457, (406) 538-1900... Information Relay Service (FIRS) at 1-800-677-8339 to contact the above individual during normal business... individual. You will receive a reply during normal business hours. SUPPLEMENTARY INFORMATION: This 15-member...

Cost, performance, and esthetic impacts of an experimental forest road in Montana

Science.gov (United States)

Rulon B. Gardner

1978-01-01

An experimental logging road designed to minimize environmental and esthetic impact was constructed in northwest Montana. The road was single-lane (14-foot finished surface, 3-foot ditch), constructed along the contour. Esthetically, the single-lane experimental road was judged far superior to existing roads on the forest.

RESISTANCE OF SOME GROUNDNUT CULTIVARS TO SOYBEAN POD BORER, ETIELLA ZINCKENELLA TREIT. (LEPIDOPTERA: PYRALIDAE

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Dwinardi Apriyanto, Edi Gunawan, dan Tri Sunardi .

2011-11-01

Full Text Available Resistance of some groundnut cultivars to soybean pod borer, Etiella zinckenella Treit. (Lepidoptera: Pyralidae.  Five groundnut cultivars: Badak, Panther, Sima, Gajah, and Simpai, were grown in field in June-August, 2006 to determine their resistance/susceptibility to Etiella zinckenella Treit.  Two local cultivars (big and small seeds were included as comparison (controls. All cultivars were grown in experimental plots arranged in a randomized complete block design (RCBD, replicated three times. The incidence of soybean pod borer and damaged pods were observed at 9, 11, 13 weeks after sowing (WAS at 10 sample plants taken randomly from each plot. All cultivars were harvested at 13 WAS. Number of damaged pods was counted and percentages per plant were calculated. Larvae observed inside pod or in the soil were counted and collected. The seed yield per plant and weight of 100 seeds from 100 sample plants taken randomly at harvest were weighted to nearest gram at 10% water content. Pod toughness (hardness was measured with penetrometer. Resistance level of each cultivar was determined based on cultivar’s means and overall mean and standard deviation of the percentages of damaged pods. Data were analyzed with analysis of variance (ANOVA and means were separated with DMRT. The result revealed that mean percentages of damaged pod differed significantly between cultivars. Seed yield of cultivar Panther, Sima and Badak were significantly higher than those of the other two and local cultivars. Cultivar Panther was categorized as resistant, cultivar Sima and Badak as moderately resistant, while the others as susceptible. The relative resistance of groundnut cultivar seems, at least in part, to correlate with the structural hardness of pod.

Desenvolvimento e produção de duas cultivares de cebola irrigadas por gotejamento Development and production of two onion cultivars irrigated by drip system

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Renato C. Vilas Boas

2012-07-01

Full Text Available Objetivou-se, com este trabalho, avaliar o efeito de diferentes tensões da água no solo sobre o desenvolvimento e produção de duas cultivares de cebola irrigadas por gotejamento. O experimento foi conduzido na área experimental do DAG/UFLA, no período de junho a outubro de 2008; o delineamento experimental utilizado foi em blocos casualizados, em esquema fatorial 2 x 6, com quatro repetições. Os tratamentos se constituíram de duas cultivares de cebola, cultivar híbrida Optima F1 e cultivar não híbrida Alfa Tropical, além de seis tensões da água no solo, 15, 25, 35, 45, 60 e 75 kPa. Concluiu-se que o híbrido Optima F1 apresentou melhores respostas com relação às seguintes características analisadas: produtividade total de bulbos, produtividade de bulbos comerciais e massa média de bulbos comerciais. A altura da planta e o diâmetro do colo apresentaram respostas lineares decrescentes, sempre que se aumentaram as tensões da água no solo, para ambas as cultivares. Referidas cultivares devem ser irrigadas no momento em que a tensão da água no solo estiver em torno de 15 kPa, na profundidade de 0,15 m, para obtenção de plantas mais altas, maiores produtividades de bulbos (total e comercial e maior massa média de bulbos comerciais.This work aimed to assess the effect of different water tensions in soil over the development and production of two onion cultivars irrigated by drip system. The experiment was carried in the experimental area of the DAG/UFLA, from June to October 2008. The experimental was conducted in randomized block design in 2 x 6 factorial scheme, with four repetitions. The treatments were two onion cultivars, the hybrid Optima F1 and the non hybrid Alfa Tropical and six soil water tensions, i.e., 15, 25, 35, 45, 60 and 75 kPa. It was verified that the hybrid Optima F1 presented the best responses regarding the following analyzed characteristics: total bulb yield, commercial bulb yield and average mass of

Análise do pólen em dezoito cultivares de macieira Pollen analysis of eighteen apple cultivars

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Fernando Antonio Campo Dall'Orto

1985-01-01

Full Text Available Como subsídio essencial ao projeto de melhoramento genético da macieira (Malus spp. por hibridação e ao conhecimento da polinização natural nas condições do Estado de São Paulo, efetuaram-se estudos sobre a quantidade e a viabilidade do pólen existente em dezoito cultivares de maior interesse no momento. Constatou-se que, entre os cultivares mais utilizados nos cruzamentos, Anna, Brasil, Dulcina, Ein Shemer, Gala, Rainha e Valinhense, juntamente com as novas seleções - IAC 170-1 e IAC 570-38 - foram os que se apresentaram mais ricos de pólen, com número superior a 50.000 grãos por flor. Quanto à viabilidade polínica desse material estudado, a germinação situou-se em níveis bastante satisfatórios - quase sempre maior que 50% - mesmo quando se armazenou o pólen por um período de 70 dias, em ambiente frio (-1ºC em dessecadores.Aiming to find out variations in pollen quantity and viability in eighteen apple cultivars, analysis of "in vitro" germination was performed to contribute - as a parameter for genetic breeding by hybridization and as a pollination basis. The apple cultivars or selections recommended for commercial planting, at the mild climate conditions prevailing in the State of São Paulo, Brasil, and most utilized in crosses, are nowadays the following: Anna, Brasil, Dulcina, Ein Shemer, Gala, Rainha, Valinhense, IAC 170-1 and IAC 570-38. These cultivars presented more than 50 thousand pollen grains per one flower. The germination index observed (also an indicator of pollen viability was higher than 50 percent in great number of materials, indicating that the pollen of the apple plant, well prepared, can be stored in a cold and dry environment (a desiccator at -1ºC during a period of about 70 days.

Diversidade genética em cultivares locais e comerciais de feijão baseada em marcadores RAPD Genetic diversity in cultivars and landraces of common bean based on RAPD markers analysis

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Beatriz Marti Emygdio

2003-10-01

Full Text Available O objetivo deste trabalho foi caracterizar a diversidade genética dentro e entre cultivares locais e comerciais de feijão, por meio de marcadores RAPD, e avaliar a capacidade destes em agrupar genótipos de feijão de acordo com o centro de domesticação e coloração de semente. Foram avaliadas 35 cultivares, 13 comerciais e 22 locais, de diversas regiões do Rio Grande do Sul. As distâncias genéticas foram obtidas pelo complemento do coeficiente de similaridade de Sorensen-Dice e a representação simplificada destas distâncias realizada mediante um dendrograma. Marcadores RAPD foram eficientes ao agrupar cultivares de acordo com o centro de domesticação, mas não foram capazes de separar as cultivares de acordo com a coloração da semente. Cultivares locais e comerciais, mesoamericanas, foram agrupadas separadamente. Cultivares comerciais, em cultivo no Rio Grande do Sul apresentam alto grau de similaridade.The objective of this work was to characterize the genetic diversity within and among cultivars and landraces of common bean from RAPD markers analysis, and to evaluate the capacity of this markers in clustering common bean genotypes according to domestication centers and seed color. Thirty five common bean genotypes including 13 commercial cultivars and 22 landraces, from State of Rio Grande do Sul, Brazil, were evaluated. Genetic distances were calculated using Sorensen-Dice's similarity coefficient, displayed in a dendrogram. RAPD markers were efficient in separating cultivars and landraces according to domestication centers, but not according to seed color. Mesoamerican commercial cultivars and landraces have been clustered in different groups. A high degree of similarity was observed among cultivars in use in Rio Grande do Sul.

Caracterização nutricional de grãos integrais e descascados de cultivares de cevada Chemical characterization of covered and hulness barley cultivars

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Elveni Teresinha Mayer

2007-11-01

Full Text Available O objetivo deste trabalho foi determinar a composição de nutrientes de grãos de diferentes cultivares de cevada, na forma integral e descascada, e classificá-los em grupos com características nutricionais distintas. Foram utilizadas amostras de 17 cultivares, da Embrapa Trigo, Passo Fundo, RS, da safra de 2005. As determinações químicas foram realizadas de acordo com os métodos de análise oficial da AOAC Internacional. Foram observadas diferenças significativas entre grãos integrais de cultivares para proteína bruta, cinzas, extrato etéreo, fibra total e carboidratos não-fibrosos, porém, os teores de fibra insolúvel e fibra solúvel não diferiram. Em grãos descascados, foram observadas diferenças em todos os parâmetros analisados. Com exceção da fração de carboidratos não-fibrosos, o processo de descascamento promoveu redução em todas as frações avaliadas, em especial nos teores de fibra total e fibra insolúvel. Diferenças na composição bromatológica ocorreram devido à variabilidade genética das cultivares e ao descascamento.The objective of this work was to determine the chemical composition of different covered and hulness barley cultivars grains and to classify them according to distinctive nutritional groups. Seventeen cultivars from 2005 crop of Embrapa Trigo, Passo Fundo, RS, Brazil, were utilized. The chemical determinations were based on Official Methods of Analysis of the AOAC International. Significative differences between integral cultivars in relation to crude protein, ash, ether extract, total fiber and non-fibrous carbohydrate were observed, however, there were no differences for fiber content and soluble fiber. In the hulness grain, differences were observed. The non-fibrous carbohydrate was an exception and, in this case, the hull's process promoted the fraction's reduction, specially in the total fiber and insoluble fiber content. Variation in the bromatological composition occurs because of

BRS Progresso – Rye cultivar

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Alfredo do Nascimento Junior

2014-10-01

Full Text Available The rye cultivar BRS Progresso, developed by the Brazilian Agricultural Research Corporation (Embrapa, is the result of a synthetic cross of 18 open-pollinated, self-incompatible lines, resistant to stem rust.

76 FR 31579 - Designation for the State of Georgia and State of Montana Areas

Science.gov (United States)

2011-06-01

... agency Headquarters location and telephone start end Georgia Atlanta, GA (229) 386-3141......... 7/1/2011 6/30/2014. Additional Location: Tifton, GA.... Montana Helena, MT (406) 761-2141 7/1/2011 6/30/2014...

Biological responses of two soybean cultivars exposed to enhanced UVB radiation

International Nuclear Information System (INIS)

D'Surney, S.J.; Tschaplinski, T.J.; Edwards, N.T.; Shugart, L.R.

1993-01-01

A UVB exposure and monitoring system has been established at the Oak Ridge National Laboratory's Global Climate Change Research Facility. The system consists of a power supply, and data acquisition and exposure equipment to accomplish controlled, elevated exposure of terrestrial plants to UVB. Plant biomass, selected compounds that absorb UV radiation, and DNA integrity/damage were measured for two soybean cultivars [Glycine max (L.) Merr.] Forrest and Essex exposed to elevated UVB (32% above ambient) in this system. The biomass of each major plant organ was observed to be less in soybean cultivar Forrest upon exposure to enhanced UVB with the greatest response in seed pods and stems. In contrast, soybean cultivar Essex showed no biomass response to elevated UVB. Enhanced UVB caused significant (P < 0.1) changes in concentrations of UV-absorbing compounds in both soybean cultivars. The Essex cultivar had an increase in UV-absorbing compounds, whereas a decline was observed for soybean Forrest. There was a decrease in the integrity of DNA, as measured by strand breaks, from both cultivars at 30 and 52 days to exposure. DNA pyrimidine dimers in isolated plant DNA were measured with Micrococcus luteus UV endonuclease. DNA from soybean Forrest exposed to UVB and sampled at 30 and 52 days of exposure had significantly greater (P<0.05) pyrimidine dimer concentration (dimer frequency ≈ 1 dimer per 28,000 DNA bases) than either cultivar exposed to UV treatment for 1 day or Essex at days 30–52 (dimer frequencies < /1 per 120,000 bases of DNA). Decrease in DNA integrity and biomass production in Forrest under elevated UVB may be related to the inability to maintain high concentrations of UV-absorbing compounds in leaves. The tolerant cultivar Essex increased the concentration of UV-absorbing compounds while maintaining biomass production and DNA integrity under elevated UVB

Cellulosic ethanol: interactions between cultivar and enzyme loading in wheat straw processing

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Felby Claus

2010-11-01

Full Text Available Abstract Background Variations in sugar yield due to genotypic qualities of feedstock are largely undescribed for pilot-scale ethanol processing. Our objectives were to compare glucose and xylose yield (conversion and total sugar yield from straw of five winter wheat cultivars at three enzyme loadings (2.5, 5 and 10 FPU g-1 dm pretreated straw and to compare particle size distribution of cultivars after pilot-scale hydrothermal pretreatment. Results Significant interactions between enzyme loading and cultivars show that breeding for cultivars with high sugar yields under modest enzyme loading could be warranted. At an enzyme loading of 5 FPU g-1 dm pretreated straw, a significant difference in sugar yields of 17% was found between the highest and lowest yielding cultivars. Sugar yield from separately hydrolyzed particle-size fractions of each cultivar showed that finer particles had 11% to 21% higher yields than coarse particles. The amount of coarse particles from the cultivar with lowest sugar yield was negatively correlated with sugar conversion. Conclusions We conclude that genetic differences in sugar yield and response to enzyme loading exist for wheat straw at pilot scale, depending on differences in removal of hemicellulose, accumulation of ash and particle-size distribution introduced by the pretreatment.

US hydropower resource assessment for Montana

Energy Technology Data Exchange (ETDEWEB)

Francfort, J.E.

1993-12-01

The Department of Energy is developing an estimate of the hydropower development potential in this country. The Hydropower Evaluation Software (HES) is a computer model that was developed by the Idaho National Engineering Laboratory for this purpose. The HES measures the potential hydropower resources available in the United States, using uniform criteria for measurement. The software was developed and tested using hydropower information and data provided by the Southwestern Power Administration. It is a dBASE menu-driven software application that allows the personal computer user to assign environmental attributes to potential hydropower sites, calculate development suitability factors for each site based on the environmental attributes present, and generate reports based on these suitability factors. This report details the resource assessment results for the state of Montana.

Montana Proficiency Events Handbook. FHA HERO: Future Homemakers of America toward New Horizons.

Science.gov (United States)

McGregor, Linda, Ed.; Quickenden, Sandy, Ed.

This handbook contains directions for FHA/HERO (Future Homemakers of America/Home Economics Related Occupations) participation activities in Montana. Participation activities are local, state, and national level competitions involving students in vocational home economics programs. The handbook provides a general overview of participation…

78 FR 67392 - Notice of Public Meeting, Eastern Montana Resource Advisory Council Meeting

Science.gov (United States)

2013-11-12

..., (406) 233-2831, [email protected] . Persons who use a telecommunications device for the deaf (TDD... variety of planning and management issues associated with public land management in Montana. At these... manager updates, Field Office Resource Management Planning updates, individual council member briefings...

Analysis of pecan cultivars Mahan and Western in East China.

Science.gov (United States)

Luo, X; Li, Z; Sun, Z; Wan, X

2016-09-16

Pecan (Carya illinoensis) has been introduced to East China for over one hundred years, but its planting is still only occurring at a small scale. The key limiting factor is its low yield. To enhance the yield pecan in East China, two pecan cultivars, Mahan and Western, were examined. Twenty traits describing phasic development, yield, nut quality, and cultural practice were investigated. We found that pecan cultivar Mahan gives a higher yield and nut quality than cultivar Western. We recommend interplanting of cultivar Pawnee to act as a pollinator tree. Appropriate cultivation practices that can be implemented to enhance fruit yield of cultivars Mahan and Western include soil-applied paclobutrazol (PBZ) at certain concentrations, pinching, and supplementary pollination. For example, the addition of 1.25 g/m 2 of PBZ inhibits pecan branch growth and stimulates short bearing branches, which promotes fruit yield. We found that soil-applied PBZ reached optimal performance 82 days after application. A pinching length of 40 cm resulted in a fruit yield increase. In addition, grafting and transplantation may promote male flowering, but delays female flowering. These cultural practices may provide insights that can be used to improve pecan cultivation in East China.

Effect of boron on growth criteria of some wheat cultivars

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Ashraf Metwally

2012-01-01

Full Text Available Introduction: Toxic soil concentrations of the essential micronutrient boron (B represent major limitations to crop production worldwide. Plants have a range of defense systems that might be involved in their affinity to resist and tolerate nutrients stress.Materials and methods: The experiments were carried out to study the differential responses in five wheat cultivars to boron toxicity. Results: The fresh and dry matter yield of the test wheat cultivars showed marked decrease as the concentration of boron was increased. Elevated concentration of boron had a notable inhibitory effect on the biosynthesis of pigments fractions in the test wheat cultivars as severely as dry matter gain. The adverse concentration effects of boron on some metabolic responses were clearly displayed by shoot and root systems, exhibited in the elevated rates of proline, hydrogen peroxide and malondialdehyde formation. Potassium leakage was severely affected by boron-stress in some cultivars at all tested concentrations, while in some others a moderate damage was manifested only at the higher boron concentrations.Conclusions: Sakha 93 out of all the different cultivars investigated was found to display the lowest sensitivity to boron-stress, while Gemmeza 9 was the most sensitive one.

Características produtivas de cultivares de cebola no Sul de Minas Gerais Yield of onion cultivars in the Southern region of Minas Gerais State, Brazil

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Geraldo M. de Resende

2003-12-01

Full Text Available Identificou-se cultivares de cebola mais produtivas através de um ensaio da EPAMIG em Lavras, de março a setembro de 1994. O delineamento experimental foi de blocos ao acaso com quatro repetições e sete tratamentos, constituídos das cultivares Granex 33, Texas Grano 502, Crioula, Pira Ouro, Baia Periforme, Jubileu e Chata Roxa com parcelas de 3,84 m² de área útil. A produtividade de bulbos comerciais variou de 22,58 a 50,21 t/ha, destacando-se as cultivares Granex 33 (50,21 t/ha e Texas Grano 502 (44,36 t/ha que não mostraram diferença significativa entre si. Estas cultivares apresentaram incrementos na produtividade da ordem de 204,3 a 168,8% em relação à média nacional (16,5 t/ha. O mais baixo rendimento foi observado para a cultivar Chata Roxa com 22,58 t/ha. Observaram-se variações de 45,99 a 97,69 g/bulbo para peso médio de bulbo e 5,35 a 7,38 cm para o diâmetro transversal de bulbos.To identify onion cultivars of higher yield for the southern region of Minas Gerais State, Brazil, a field trial from EPAMIG was conducted in Lavras, Brazil, from March to September 1994.The experimental design was randomized complete blocks with four replications and seven treatments: Granex 33, Texas Grano 502, Crioula, Pira Ouro, Baia Periforme, Jubileu and Chata Roxa. The harvesting area of each plot was 3.84 m². The yield of commercial bulbs varied from 22.58 to 50.21 t/ha, and the highest yield was achieved by the cultivars Granex (50.21 t/ha and Texas Grano 502 (44.36 t/ha with no significant difference between them. These cultivars exceeded the national average yield (16.5 t/ha from 204.3 to 168.8%. The lowest yield was shown by the cultivar Chata Roxa (22.58 t/ha. A variation occurred from 45.99 to 97.69 g/bulb and 5.35 to 7.39 cm for the bulb diameter.

Enhanced antioxidative responses of a salt-resistant wheat cultivar ...

African Journals Online (AJOL)

Enhanced antioxidative responses of a salt-resistant wheat cultivar facilitate its adaptation to salt stress. L Chen, H Yin, J Xu, X Liu. Abstract. Wheat cultivars capable of accumulating minerals under salt stress are of considerable interest for their potential to improve crop productivity and crop quality. This study addressed the ...

Quantification of trash in early sugarcane cultivars; Quantificacao do palhico em cultivares precoces de cana-de-acucar

Energy Technology Data Exchange (ETDEWEB)

Pauli, Fernando A. de; Silva, Helio F. da; Tasso Junior, Luiz Carlos; Marques, Diogo; Marques, Marcos O. [Universidade Estadual Paulista (FCAV/UNESP), Jaboticabal, SP (Brazil). Fac. de Ciencias Agrarias e Veterinarias], E-mail: fernando_abackerli@hotmail

2010-07-01

The energy generated from biomass of sugarcane is on the spotlight on the world stage. The straw remaining in the soil after harvest of sugarcane, brings several attributes that qualify as plant material to be used for power cogeneration. Thus, this study aimed to quantify the straw in early cultivars of sugarcane. The experimental design was randomized blocks with 6 treatments (cultivars) and three replications. At harvest, we counted the number of stems on the meter and the weight of stems was estimated agricultural productivity. After harvesting the cane was used a rectangle of 4.5 m2, which was placed randomly within each plot and all trash contained therein was weighed. From these results was estimated the number of people benefiting the energy from this trash. The SP80-1842 had the best performance, the highest amounts of trash (31.00 t ha-1), the largest index value of straw (28.33%) and more people benefit from the energy generated from the same (26.66x10-1) showing its greater suitability for cogeneration. Cultivars CTC9 and SP91-1049 presented the results less satisfactory. (author)

Assessment of undiscovered oil and gas resources in the North-Central Montana Province, 2017

Science.gov (United States)

Schenk, Christopher J.; Mercier, Tracey J.; Brownfield, Michael E.; Tennyson, Marilyn E.; Woodall, Cheryl A.; Le, Phuong A.; Klett, Timothy R.; Gaswirth, Stephanie B.; Finn, Thomas M.; Pitman, Janet K.; Marra, Kristen R.; Leathers-Miller, Heidi M.

2018-02-12

Using a geology-based assessment methodology, the U.S. Geological Survey estimated mean undiscovered, technically recoverable resources of 55 million barrels of oil and 846 billion cubic feet of gas in the North-Central Montana Province.

Physicochemical and functional properties of two cowpea cultivars grown in temperate Indian climate

OpenAIRE

Saima Hamid; Sabeera Muzzafar; Idrees Ahmed Wani; Farooq Ahmad Masoodi

2015-01-01

Flours of two local cowpea cultivars namely Red cowpea and Black cowpea were analysed for proximate composition, pasting and functional properties. The crude protein and fat contents were higher for Black cultivar than the Red cultivar. The apparent amylose content was significantly higher for Red cowpea (25.54%) than Black cowpea (15.09%). Polyphenols were significantly higher for Red cowpea than Black cowpea. The pasting profile of two cultivars revealed significantly higher values of peak ...

Compositional studies of lentil (lens culinaris medik.) cultivars commonly grown in Pakistan

International Nuclear Information System (INIS)

Haq, M.Z.U.; Ahmad, S.; Shad, M.A.; Qayum, M.

2011-01-01

Four improved lentil cultivars viz., Masoor 85, Masoor 93, NIAB Masoor 2002 and NIAB Masoor 2006 grown and consumed in Pakistan have been systematically analyzed to determine and compare their nutritional and compositional properties. Proximate analysis, anti-nutritional contents, amino acid and fatty acid profiles of the oil extracted along with mineral content from all four cultivars were investigated. Mineral composition showed that sufficient amounts of Ca, P, K, Cu, Zn and Mg were present to meet the macro and micro-nutrients demand in human diets. Despite variations, potassium and manganese were noted as being present in highest and lowest concentrations, respectively, in all cultivars. The distribution patterns of various amino acids in these cultivars suggested sulfur containing amino acids as limiting amino acids. Fatty acid profile indicated unsaturated fatty acids as major fatty acids in all cultivars. The data show that, in terms of both quality and quantity, all four lentil cultivars can serve as a significant source of essential amino acids, essential fatty acids and trace minerals to meet the demand of population of Pakistan. (author)

CULTIVAR RELEASE - FAEM Carlasul: new white oat cultivar with high grain yield

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Antônio Costa de Oliveira

2012-01-01

Full Text Available The white oat cultivar FAEM Carlasul was developed at the Plant Genomics and Breeding Center, Faculty of Agronomy Eliseu Maciel, Federal University of Pelotas, as a result of the cross between UFRGS 10 and 90SAT-28 (Coronado2/Cortez3/Pendek/ME 1563. It is characterized by high yield and grain quality.

Oilseed cultivars developed from induced mutations and mutations altering fatty acid composition

International Nuclear Information System (INIS)

Bhatia, C.R.; Nichterlein, K.; Maluszynski, M.

1999-01-01

One hundred and sixty-three cultivars of annual oilseed crops, developed using induced mutations, have been officially approved and released for cultivation in 26 countries. The maximum number of cultivars have been released in soybean (58), followed by groundnut (44), sesame (16), linseed (15), rapeseed (14), Indian mustard (8), castorbean (4), white mustard (3) and sunflower (1). The majority (118 of 163) of the cultivars have been developed as direct mutants and 45 of 163 by using the induced mutants in a crossing programme. While in soybean 53 out of 58 cultivars were selected as direct mutants, in groundnut 22 from 44 were developed after hybridization. Eighty-three cultivars were developed directly by exposing seeds to gamma or X-rays. Attempts have been made to infer the successful dose range, defined as the range which led to the development, registration and release of the maximum number of mutant cultivars for gamma and X-rays. The successful dose ranges in Gy for the main oilseed crops are: soybean 100-200, groundnut 150-250, rapeseed 600-800, Indian mustard 700 and sesame 100-200. The main characteristics of the new cultivars, besides higher yield, are altered plant type, early flowering and maturity and oil content. Mutants altering fatty acid composition have been isolated in soybean, rapeseed, sunflower, linseed and minor oil crops. New cultivars having altered fatty acid composition have been released in rapeseed, sunflower and linseed. The latter, previously grown for non-edible oil, has been converted to a new edible oil crop. (author)

Cultivares de batata para sistemas orgânicos de produção Potato cultivars for organic production systems

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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

Genetic similarity among strawberry cultivars assessed by RAPD and ISSR markers

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Rafael Gustavo Ferreira Morales

2011-12-01

Full Text Available Most strawberry (Fragaria × ananassa Duchesne cultivars used in Brazil are developed in other countries, it became clear the need to start the strawberry breeding program in the country. To start a breeding program is necessary the genetic characterization of the germplasm available. Molecular markers are important tools that can be used for this purpose. The objectives of the present study were to assess the genetic similarity among 11 strawberry cultivars using RAPD and ISSR molecular markers and to indicate the possible promising crosses. The DNA of the eleven strawberry cultivars was extracted and amplified by PCR with RAPD and ISSR primers. The DNA fragments were separated in agarose gel for the RAPD markers and in polyacrylamide gel for the ISSR markers. The genetic similarity matrix was estimated by the Jaccard coefficient. Based on this matrix, the cultivars were grouped using the UPGMA method. The dendogram generated by the RAPD markers distributed the cultivars in three groups while the ISSR markers generated two groups. There was no direct relationship between the marker groups when the two types of markers were compared. The grouping proposed by the ISSR markers was more coherent with the origin and the genealogy of the cultivars than that proposed by the RAPD markers, and it can be considered the most efficient method for the study of genetic divergence in strawberry. The most promising crosses, based on the genetic divergence estimated from the RAPD and ISSR molecular data were between the Tudla and Ventana and the Oso Grande and Ventana cultivars, respectively.

Cyclobutyl pyrimidine dimer accumulation in relation to UV-B sensitivity in mung bean cultivars

International Nuclear Information System (INIS)

He Junmin; Wang Ruibin; Meng Zhaoni

2006-01-01

The purpose of the experiment is to reveal the relationship between cyclobutyl pyrimidine dimers (CPDs) accumulation and UV-B sensitivity in mung bean cultivars. Two mung bean cultivars (Phaseolus raditus L. cv. Qindou -2 0 and Zhonglü -1 ) were grown in greenhouse with treatment or without treatment of UV-B radiation (0.4 W * m -2 ) for four days. The UV-B-induced CPDs in mung bean DNA were quantified by enzyme-linked immunosorbent assay (ELISA) with specific monoclonal antibody and the relationship between CPDs accumulation and the UV-B sensitivity of mung bean seedlings were discussed. The UV-B-induced inhibition of the biomass and net photosynthetic rate of the primary leaves of cultivar Zhonglü -1 were respectively lower than that of cultivar Qindou -2 0, so that the cultivar Zhonglü -1 was more tolerant to UV-B than the cultivar Qindou -2 0. Meanwhile, the cultivar Zhonglü -1 had lower CPD accumulation and susceptibility to CPD induction, higher photorepair capacity and same dark repair capacity as compared with the cultivar Qindou -2 0. Different UV-B sensitivities between two mung bean cultivars may be mainly caused by the differences in CPD accumulation, which are caused by the different susceptibility to CPD induction and the different photorepair capacities. In addition, the different susceptibility to CPD induction between two mung bean cultivars is related to the different levels of UV-absorbing compounds

Nutritive value evaluated on rats of new cultivars of common beans (Phaseolus vulgaris) released in Chile.

Science.gov (United States)

Yañez, E; Zacarias, I; Aguayo, M; Vasquez, M; Guzman, E

1995-06-01

Five new cultivars of common beans (Phaseolus vulgaris) recently released were analyzed for their proximate chemical composition and protein biological quality. The crude protein content in these cultivars ranged from 21.9 percent in cultivar Arroz 3 to 26.9 percent in cultivar Tórtola Diana (dry matter basis). Rats fed cultivar Tórtola INIA gained more weight, had a higher protein intake and registered higher PER and NPR than Tórtola corriente. On the other hand, rats consuming cultivars Arroz 3 and Fleetwood had lower weight gain, lower protein intake and lower PER and NPR than cultivar Coscorrón corriente. However, all these cultivars have a relatively good protein value as compared to other plant protein sources.

Similaridade genética entre cultivares de cebola de diferentes tipos e origens, baseada em marcadores AFLP Genetic similarity among onion cultivars of different types and origins, based on AFLP markers

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CAF Santos

2011-03-01

Full Text Available Foi estimada a similaridade genética entre cultivares de cebola de diferentes tipos e regiões geográficas, de forma a orientar programas de recursos genéticos e melhoramento da espécie no Nordeste brasileiro. Foram analisadas 41 cultivares, adotando-se para a visualização da similaridade genética o fenograma UPGMA gerado da matriz de distâncias genéticas estimadas pelo coeficiente de Jaccard e baseadas em 146 bandas polimórficas de Pst1 e Mse1 de AFLP. A correlação cofenética foi de 0,91, indicando boa confiabilidade da representação gráfica para a interpretação dos resultados. Foram observados dois grupos principais no fenograma, no ponto de corte de 0,55 de similaridade: 1 grupo formado por cultivares predominantemente brasileiras, com algumas inclusões de cultivares estrangeiras; e 2 grupo formado por três cultivares estrangeiras (Mercedes, Perfect e TEG 502 PRR. Rijnsburger Jumbo e IPA 8 apresentaram a maior similaridade (85%, enquanto Madrugada foi a mais divergente em relação às demais cultivares. As cultivares da série IPA se dividiram em subgrupos no grupo das cultivares brasileiras (IPA 8, IPA 10 e IPA 11; IPA 12, IPA 7, IPA 2 e IPA 6; IPA 3, IPA 4 e IPA 9, indicando haver variabilidade genética a ser explorada entre aquelas situadas em subgrupos distintos. Bola Precoce e BRS Cascata apresentaram a maior similaridade entre as cultivares de origem brasileira. Foi observada similaridade superior a 39%, refletindo a alta variabilidade genética da coleção de cebola estudada. A introdução de novos acessos deve considerar procedências outras que não norte americanas, para aumentar a variabilidade de germoplasma de cebola disponível no Nordeste do Brasil.The genetic similarity among onion cultivars of different origins was evaluated, in order to carry out genetic resources and breeding programs for this species on the Brazilian Northeast. Forty-one onion cultivars were analyzed for 146 polymorphic Pst1/Mse1

Relationship of European Persimmon (Diospyros kaki Thunb.) Cultivars to Asian Cultivars, Characterized Using AFLPs.

Science.gov (United States)

Sixty one persimmon (Diospyros kaki Thunb.) selections, including 17 Italian, 11 Spanish, 13 Japanese, six Korean, five Chinese, one Israeli, and eight of unknown origin, were evaluated for genetic differences by AFLP analysis. Relationships among cultivars were evaluated by UPGMA clustering, Neigh...

Adaptability and stability of carotenoids in maize cultivars

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Sara de Almeida Rios

2009-01-01

Full Text Available The purpose of this study was to investigate the adaptability and stability of carotenoids in maize cultivars inthe 2004/2005 growing season. Total carotenoids (TC, total carotenoids with provitamin A activity (Pro VA (μg g-1 andgrain yield (kg ha-1 were quantified in 10 cultivars at five locations. The chemical analyses were conducted in a laboratoryof the EMBRAPA/CNPMS, in Sete Lagoas, Minas Gerais. The methodologies of Eberhart and Russell (1966, Lin and Binns(1988 and Rocha et al. (2005 were used to analyze adaptability and stability. In general, the linear regression modelproposed by Eberhart and Russell (1966 failed to fit the Pro VA contents in the evaluated cultivars satisfactorily. However,with regard to the TC levels, all different analysis methodologies of adaptability and stability rated hybrid BRS 2020 as anideal genotype with general adaptability.

Variação no conteúdo de beta-glucanas em cultivares brasileiros de aveia Beta-glucan content variation in brasilian oat cultivars

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Roberta M. de SÁ

2000-04-01

Full Text Available Com o crescente interesse em alimentos funcionais e nutracêuticos, a aveia (Avena sativa L. tem se destacado, devido ao seu teor de fibras alimentares e principalmente às beta-glucanas. As (1,3(1,4-beta-D-glucanas, fibras alimentares na maioria solúveis, atuam na redução do colesterol em indivíduos com hipercolesterolemia. Existem estudos para determinar as causas de variação do teor desta fibra em aveia, porém, pouco se sabe sobre a aveia cultivada no Brasil. O objetivo deste trabalho foi verificar se existem diferenças no conteúdo de beta-glucanas entre cultivares brasileiros e se há variação na porcentagem desta fibra devido ao ano de cultivo. Os cultivares IAC7, UFRGS14, UPF16 e UPF17 (3 amostras de cada, e ainda três amostras do cultivar IAC7 para cada ano de cultivo (97 e 98, foram analisados segundo os métodos da AACC (American Association of Cereal Chemists. Os teores médios (peso seco de beta-glucanas foram 6,50% (IAC7, 4,30% (UFRGS14, 3,51% (UPF16 e 3,78% (UPF17, com erro padrão de ±0,084 e coeficiente de variação de 7,89 %. Observou-se efeito significativo dos cultivares (p=0,03 e grande variabilidade entre as amostras (p=0,0001. O cultivar IAC7 apresentou média de beta-glucanas de 5,11% em 97 e 6,50 % em 98 (erro padrão ±0,14; CV=10,53% e observou-se efeito significativo do ano de cultivo.With the increasing interest in functional foods and nutraceuticals, oats (Avena sativa L. have received special attention because of their dietary fiber contents, and specially of their beta-glucans. The mostly soluble dietary fibers (1,3(1,4-beta-D-glucans, reduce serum cholesterol in individuals with hypercholesterolemia. There are studies about the causes of variation in the contents of this fiber in oats, however, very little is known about Brazilian cultivars. The objective of this work was to verify if there were differences in the beta-glucan contents among brazilian cultivars and if there was variation in the

76 FR 52968 - Notice of Public Meeting; Central Montana Resource Advisory Council

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2011-08-24

..., Montana 59457, (406) 538-1900, [email protected] . Persons who use a telecommunications device for the... individual during normal business hours. The FIRS is available 24 hours a day, 7 days a week to leave a message or question with the above individual. You will receive a reply during normal business hours...

A Descriptive Study of Students with Disabilities at Montana State University Billings

Science.gov (United States)

Dell, Thomas Francis

2013-01-01

The purpose of this study was to describe and analyze how the characteristics of age, major and type of disabilities for students who received services through Disability Support Services at Montana State University-Billings have changed from 1999 to 2011. Furthermore, this analysis contrasted local trends for types of disabilities with national…

Genetic fingerprinting of mutant rose cultivars

Energy Technology Data Exchange (ETDEWEB)

Kumar, S; Prasad, K V; Singh, K P; Singh, A.P. [Division of Floriculture and Landscaping, Indian Agricultural Research Institute, Pusa, New Delhi (India)], E-mail: kvprasad66@gmail.com

2008-07-01

Six rose mutants evolved at the Indian Agricultural Research Institute, New Delhi from four parent cultivars were characterized based on RAPD markers. Contrary to the earlier findings our effort has conclusively proven that the RAPD markers are indeed robust tools to discern the mutants from their parents. Among 40 primers screened, 7 primers produced inconsistent banding pattern. The number of polymorphic bands varied between 4 (OPA 14) and 10 (OPA1) with an average of 6.5 bands per primer. The percentage polymorphism ranged from 62.5 (OPM 9) to 100 percent (OPA 1). Most of the primers produced monomorphic bands between parent and mutant rose cultivars. When primer OPA 2 was used a specific band of 2.5 kb was noticed in mutant cv. Pusa Urmil and cv. Pusa Abhishek but was absent in parent cv. Jantar Mantar. A polymorphic band of 750 bp was noticed in the parent Kiss of Fire and helped in differentiating the parent from its mutant when amplified with OPK 3. Primer OPS 16 produced discriminatory band of 800 bp in mutant cv. Pink Sport of Montezuma while it was absent in its parent cv. Montezuma. Another specific band of 650 bp was present in parent cv. Montezuma and absent in its mutant cv. Pink Sport of Montezuma signifying the uniqueness of the mutant. Primer OPM 5 brought out distinct polymorphism among the parent Jantar Mantar and its three mutants with absence of a specific band of 1.5 kb in the parent. The four parents and 6 mutants were divided into four distinct groups in the Dendogram constructed by UPGMA method. The most genetically similar cultivar among the 10 cultivars analyzed are Montezuma and its pink sport of Montezuma whereas Abhisarika a mutant of cv. Kiss of Fire was distinctly different and formed a separate cluster. (author)

Chemical composition of five loquat cultivars planted in Brazil Composição química de cinco cultivares de nêsperas plantadas no Brasil

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Patrícia Nagai Hasegawa

2010-06-01

Full Text Available Loquat is a fruit with high market value cultivated in Southeast Brazil. Despite of this, there are little details about its quality characteristics. Fruits from five loquat cultivars, developed using genetic breeding, were analyzed to assess their compositional traits. The cultivars Centenária, Mizuho, Mizumo, Néctar de Cristal and Mizauto were selected based on their high productivity and resistance to diseases. Soluble sugars, organic acids, and carotenoids were quantified using liquid chromatography. The cultivar (cv. with the highest total sugar concentration was Mizumo and the lowest concentration was found in Centenária. The main sugar detected was sucrose, and the malic acid was the major organic acid. Ascorbic acid was detected in small amounts. The total dietary fiber contents were almost the same in all cultivars. The major carotenoids detected were β-carotene and β-cryptoxanthin, except for the cultivar Nectar de Cristal, a white pulp loquat. These results contribute to the knowledge about de physiology of loquat fruit, an interesting raw material due to its nutritional and sensorial characteristics. Furthermore, the results obtained could help to identify the most appropriate use of the loquats with different attributes either for consumption in natura or for industrial processing.A nêspera é uma fruta de alto valor de mercado cultivada no sudeste do Brasil. Apesar disso, há poucos detalhes sobre suas características de qualidade. Frutas de cinco cultivares de nêsperas, desenvolvidas por melhoramento genético, foram analisadas para avaliar sua composição química. As cultivares Centenária, Mizuho, Mizumo, Néctar de Cristal e Mizauto foram selecionadas com base em sua alta produtividade e resistência a doenças. Os açúcares solúveis, ácidos orgânicos e carotenoides foram quantificados por cromatografia líquida de alta eficiência. A cultivar com a maior concentração de açúcares totais foi a Mizumo e a com

GC-MS metabolic profiling of Cabernet Sauvignon and Merlot cultivars during grapevine berry development and network analysis reveals a stage- and cultivar-dependent connectivity of primary metabolites.

Science.gov (United States)

Cuadros-Inostroza, Alvaro; Ruíz-Lara, Simón; González, Enrique; Eckardt, Aenne; Willmitzer, Lothar; Peña-Cortés, Hugo

Information about the total chemical composition of primary metabolites during grape berry development is scarce, as are comparative studies trying to understand to what extent metabolite modifications differ between cultivars during ripening. Thus, correlating the metabolic profiles with the changes occurring in berry development and ripening processes is essential to progress in their comprehension as well in the development of new approaches to improve fruit attributes. Here, the developmental metabolic profiling analysis across six stages from flowering to fully mature berries of two cultivars, Cabernet Sauvignon and Merlot, is reported at metabolite level. Based on a gas chromatography-mass spectrometry untargeted approach, 115 metabolites were identified and relative quantified in both cultivars. Sugars and amino acids levels show an opposite behaviour in both cultivars undergoing a highly coordinated shift of metabolite associated to primary metabolism during the stages involved in growth, development and ripening of berries. The changes are characteristic for each stage, the most pronounced ones occuring at fruit setting and pre-Veraison. They are associated to a reduction of the levels of metabolites present in the earlier corresponding stage, revealing a required catabolic activity of primary metabolites for grape berry developmental process. Network analysis revealed that the network connectivity of primary metabolites is stage- and cultivar-dependent, suggesting differences in metabolism regulation between both cultivars as the maturity process progresses. Furthermore, network analysis may represent an appropriate method to display the association between primary metabolites during berry developmental processes among different grapevine cultivars and for identifying potential biologically relevant metabolites.

Source rock potential of middle cretaceous rocks in Southwestern Montana

Science.gov (United States)

Dyman, T.S.; Palacas, J.G.; Tysdal, R.G.; Perry, W.J.; Pawlewicz, M.J.

1996-01-01

The middle Cretaceous in southwestern Montana is composed of a marine and nonmarine succession of predominantly clastic rocks that were deposited along the western margin of the Western Interior Seaway. In places, middle Cretaceous rocks contain appreciable total organic carbon (TOC), such as 5.59% for the Mowry Shale and 8.11% for the Frontier Formation in the Madison Range. Most samples, however, exhibit less than 1.0% TOC. The genetic or hydrocarbon potential (S1+S2) of all the samples analyzed, except one, yield less than 1 mg HC/g rock, strongly indicating poor potential for generating commercial amounts of hydrocarbons. Out of 51 samples analyzed, only one (a Thermopolis Shale sample from the Snowcrest Range) showed a moderate petroleum potential of 3.1 mg HC/g rock. Most of the middle Cretaceous samples are thermally immature to marginally mature, with vitrinite reflectance ranging from about 0.4 to 0.6% Ro. Maturity is high in the Pioneer Mountains, where vitrinite reflectance averages 3.4% Ro, and at Big Sky Montana, where vitrinite reflectance averages 2.5% Ro. At both localities, high Ro values are due to local heat sources, such as the Pioneer batholith in the Pioneer Mountains.

CARACTERIZACIÓN DE LA MORFOLOGÍA FLORAL DE DOS CULTIVARES DE BERENJENA (Solanum melongena L. (Solanaceae FLORAL MORPHOLOGY CHARACTERIZATION OF TWO CULTIVARS OF EGGPLANT (Solanum melongena L. (Solanaceae

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Hermes Araméndiz Tatis

2009-12-01

Full Text Available La berenjena es una especie perteneciente al género Solanum, de gran importancia en la horticultura del Caribe colombiano. El estudio tuvo como objetivo describir la morfología floral de dos cultivares de berenjena “Long Purple” y “Criolla Lila”, que tienen origen geográfico diferente, utilizando para ello, una muestra aleatoria de 100 cojines florales por cultivar. Se estimaron la media, rango, varianza, desviación estándar, coeficiente de variación y se aplicó la prueba t, para determinar diferencias entre los dos cultivares. Los resultados indicaron que el cultivar “Long Purple”, presenta flores distílicas, en tanto que en el “Criollo Lila” se observó la presencia de tristilia. El potencial de producción de frutos, fue del 76,5% y 57,52%, para el “Criollo Lila” y “Long Purple”, respectivamente. Las flores brevistílicas en ambos cultivares, incrementan la aptitud masculina y por ende un desbalance entre las flores con funcionamiento masculino y hermafrodita.The eggplant is a specie of genus Solanum, of great importance in horticulture of colombian Caribbean region. The objective of study was to describe the floral morphology of two cultivars of eggplant “Long Purple” and “Lilac land race”, which have different geographic origin. We used a random sample of 100 floral cushions for cultivar. The mean, range, variance, standard deviation, variation coefficient were estimated. The t-test was applied to determine differences between two cultivars. The results indicated that genotype ‘Long Purple’, showed distylics flowers, while in the “Lilac land race” was observed the presence of tristylics flowers. The potential for production of fruit was 76.50% and 57.52% for the “Lilac land race” and “Long Purple”, respectively. Brevistylics flowers in the two cultivars, increased male fitness and thus produced a nonbalance on functioning between male and hermaphrodite flowers.

Cultivar Evaluation and Essential Test Locations Identification for Sugarcane Breeding in China

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Jun Luo

2014-01-01

Full Text Available The discrepancies across test sites and years, along with the interaction between cultivar and environment, make it difficult to accurately evaluate the differences of the sugarcane cultivars. Using a genotype main effect plus genotype-environment interaction (GGE Biplot software, the yield performance data of seven sugarcane cultivars in the 8th Chinese National Sugarcane Regional Tests were analyzed to identify cultivars recommended for commercial release. Fn38 produced a high and stable sugar yield. Gn02-70 had the lowest cane yield with high stability. Yz06-407 was a high cane yield cultivar with poor stability in sugar yield. Yz05-51 and Lc03-1137 had an unstable cane yield but relatively high sugar yield. Fn39 produced stable high sugar yield with low and unstable cane production. Significantly different sugar and cane yields were observed across seasons due to strong cultivar-environment interactions. Three areas, Guangxi Chongzuo, Guangxi Baise, and Guangxi Hechi, showed better representativeness of cane yield and sugar content than the other four areas. On the other hand, the areas Guangxi Chongzuo, Yunnan Lincang, and Yunnan Baoshan showed strong discrimination ability, while the areas Guangxi Hechi and Guangxi Liuzhou showed poor discrimination ability. This study provides a reference for cultivar evaluation and essential test locations identification for sugarcane breeding in China.

Whitefly (Paraleyrodes sp. preference for avocado cultivars (Persea americana Mill. in Fresno, Tolima

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Paola Vanessa Sierra

2014-07-01

Full Text Available The whitefly is a major pest that affects avocado and there is not enough information about the biolog y and management of this insect in Colombia. In this paper the incidence of the whitefly Paraleyrodes sp. pos. bondarion four avocado cultivars was studied (Choquette, Hass, Lorena, Santana. The crop management carried out by farmers was characterized and its effect on the white fly presence on three cultivars was evaluated (Choquette, Hass, Lorena. Presence of secondary metabolites on leaves from Hass and Lorena was measured and the effect of their leaf extracts on the mortality and repellency index of whitefly adults was established. There were interactions between crop management and cultivar for the presence of the insect; moderately chemical management had the lowest infestation in all cultivars. The increase in soil fertilization and chemical insecticides increased insect population, and removal of the hemiparasite decreased it. Lorena cultivar had the highest fly preference, insect population increase when there was interaction between cultivar and mature leaves, neutral repellency index, and high percentage of total and non-reducing carbohydrates. The Hass cultivar showed higher amount of coumarins, terpenes and steroids, and high rate of repellency. Lorena attracting the insect is due to the presence of carbohydrates; and Hass repellency is due to the terpene and / or steroids. Research works should be done on whitefly in avocado crops toward cultivars Lorena

MULTIVARIATE ANALYSIS OF BALI SALAK CULTIVARS (SALACCA ZALACCA VAR. AMBOINENSIS (BECC. MOGEA BASED ON LEAF MICROMORPHOLOGICAL CHARACTERS

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NI MADE GARI

2011-06-01

Full Text Available Leaf micromorphology of 13 Bali salak cultivars was studied by using multivariate analysis (Principal component analysis. The results showed that the cultivars clustered into a main group consisted of nine cultivars (Boni, Bingin, Selem, Embad, Nangka, Penyalin, Maong, Nyuh, and Putih. However, two cultivars (Muani and Gondok were distinctly separated from this main group and two the others Nanas and Gula were intermediate. The principal component analysis (PCA revealed that the main group has highly correlated to the characters abaxial cell length and number of cross vein density. Muani cultivar generally had longer adaxial cells, wider guard cells and lower stomatal index than the other cultivars. These three characters strongly influenced the separation of Muani from the others. Similarly, Gondok cultivar generally had wider abaxial cells than the other cultivars that discriminated Gondok clearly from the others. Whereas, the intermediate cultivars (Gula and Nanas were placed between the main group that consisted of nine cultivars and the two separated cultivars (Muani and Gondok. These cultivars (Gula and Nanas had intermediate values, which influenced their separations.

Clinical reactivity of celery cultivars in allergic patients: Role of Api g 1.

Science.gov (United States)

Dölle, S; Welter, S; Ruppel, E; Lehmann, K; Schwarz, D; Jensen-Jarolim, E; Zieglmayer, P; Franken, P; Worm, M

2018-04-01

Celery (Apium graveolens L.) is a vegetable consumed world-wide. Celery stalks and celeriac roots are often ingredients in convenient food products like spice blends and soups. In this study, we examined the allergenicity of distinct celeriac cultivars. Sixteen celery-allergic patients were identified using a double-blind, placebo-controlled food challenge. Ten different celeriac cultivars were used for skin prick testing in the patients. Two cultivars were further applied for oral food challenges; their protein composition was analysed by immunoblotting, and contents of major allergen Api g 1 were quantified. From the 10 investigated celeriac cultivars, two cultivars elicited significantly different skin reactivity ("Anita": 5.0 [2.0-12.0] mm vs "Prinz": 7.0 [3.0-9.5] mm; P = .047). Moreover, "Anita" induced fewer symptoms after a controlled oral-celeriac challenge in 14 patient (P Api g 1 in "Prinz" than in "Anita." Taken together, the data from this study suggest that cultivar Anita is better tolerated in celery-allergic patients than "Prinz." Differences in the protein expression profile between the cultivars, particularly the different content of Api g 1, could cause the different allergenicity. © 2018 John Wiley & Sons Ltd.

Powdery mildew reaction of hop cultivars and USDA germplasm, 2015

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This research was conducted to identify possible sources of resistance to the disease powdery mildew in publicly-available hop germplasm and cultivars. Germplasm with the highest levels of downy mildew resistance in the USDA collection and various cultivars of interest were screened for their reac...

Reação de cultivares de abacateiro à podridão de raízes Reaction of avocado cultivars to avocado root rot

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Ciro Hideki Sumida

2009-07-01

Full Text Available As cultivares de abacateiro (Persea americana Mill 'Margarida', 'Fortuna' e 'Hass' têm muita importância econômica no mercado nacional e internacional. Em função disso, este trabalho teve como objetivo avaliar a reação dessas cultivares frente à Phytophthora cinnamomi Rands., agente causal da podridão das raízes. A inoculação do patógeno foi feita por meio de implantação de tecidos de raízes sintomáticas. Foram inoculadas quatro raízes em três árvores diferentes, uma de cada cultivar, em três pontos diferentes da raiz. Em cada cultivar, das quatro raízes, uma foi utilizada como testemunha, nas quais foram implantados tecidos sadios. A avaliação foi realizada aos 120 dias após a inoculação, observando-se as raízes externamente quanto à alteração da coloração e presença de estruturas de patógenos na região da superfície da casca nos pontos inoculados. Internamente, foram removidas as cascas para visualização das alterações a partir do ponto inoculado, sendo observadas alterações de coloração dos tecidos e realizada mensuração da extensão do escurecimento (lesão aparente. Nas extremidades das lesões foram retirados segmentos de raízes e implantados em meio de cultivo farinha de milho-ágar e incubados, para verificação da colonização na área sem escurecimento, ou seja, a colonização não- aparente. Das cultivares avaliadas, a 'Hass' foi a menos suscetível ao P. cinnamomi, quando comparada às cultivares 'Fortuna' e 'Margarida'. O patógeno P. cinnamomi pode apresentar desenvolvimento ou colonização nos tecidos radiculares além da área sintomática.Cultivars of the avocado (Persea americana Mill 'Margarida', 'Fortuna' and 'Geada' have importance in the national and international markets. The present paper had as objective to evaluate the reaction of such cultivars to Phytophthora cinanamomi Rands, the causal agent of avocado root rot. They were inoculated four roots in three different

Solar radiation use efficiency and morphophysiological indices in common bean cultivars

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Gisele Carneiro da Silva Teixeira

2015-03-01

Full Text Available Common bean crops present a broad edaphoclimatic adaptation, allowing their cultivation throughout the year. However, in order to reach good economic income levels, it is fundamental to understand the processes that affect the growth and development of the crop in various environments. This study aimed to compare two common bean cultivars (BRS Radiante and Pérola contrasting in cycle and growth behavior by using morphophysiological indices and solar radiation use efficiency. The following traits were evaluated: light extinction coefficient, radiation use efficiency, phenologic development, leaf area index, total dry matter weight, crop growth rate, relative growth rate and dry matter partitioning. The BRS Radiante cultivar shows a higher vigor, when compared to the Pérola cultivar, due to its faster initial phenologic development and higher initial and relative growth rates. Both cultivars differ for leaf area index and shoot architecture, although that does not happen for light extinction coefficient. The BRS Radiante cultivar shows a higher solar radiation use efficiency, resulting in a greater dry matter yield throughout its development.

Comportamento de cultivares de cafeeiro em diferentes densidades de plantio The behavior of coffee cultivars under different plant densities

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Edison Martins Paulo

2005-01-01

Full Text Available Avaliou-se em Adamantina, na Região da Alta Paulista, em São Paulo, entre maio de 1995 e junho de 2000, o crescimento e quatro produções de cafeeiros das cultivares de porte baixo Catuaí Amarelo IAC 47 e Obatã IAC 1669-20 de Coffea arabica L., submetidas às densidades de plantio de 2.500, 5.000, 7.519 e 10.000 plantas ha-1, com uma planta por cova. Estudou-se também a população de 2.500 plantas.ha-1 em covas com duas plantas com 2,0 m de distância na linha de plantio. Adotou-se o delineamento estatístico de blocos ao acaso com três repetições, com parcelas subdivididas, onde as parcelas foram as populações e as subparcelas, as cultivares. Os resultados permitiram inferir que, no período estudado, o aumento da densidade influenciou positivamente a altura e negativamente o diâmetro do caule e da base da copa dos cafeeiros, mas não a altura da inserção do primeiro ramo plagiotrópico a partir do nível do solo. O aumento da população de cafeeiros acarretou menor produção de café beneficiado por planta, mas concorreu para o aumento da produtividade no período de 1997 a 2000. O plantio de duas mudas de café por cova acarretou também diminuição do diâmetro do caule e da produção individual dos cafeeiros. Observou-se na cultivar Catuaí Amarelo IAC 47 maior diâmetro da base da copa e maior crescimento em altura, enquanto a cv. Obatã IAC 1669-20 evidenciou seu maior diâmetro do caule. As cultivares Catuaí Amarelo IAC 47 e Obatã IAC 1669-20 não diferiram entre si quanto à produção individual e à produtividade de café beneficiado no quadriênio (1997-2000.This experiment was developed at Adamantina, west region of the State of São Paulo, Brazil, during May of 1995 to June of 2000. The plant growth and productivity of two coffee cultivars Catuaí Amarelo IAC 47 and Obatã IAC 1669-20, were evaluated considering to plant densities of 2.500, 5.000, 7.519 and 10.000 plants ha-1. The density of 2500 also was

Cultivar and Rhizobium Strain Effects on the Symbiotic Performance of Pea (Pisum sativum)

DEFF Research Database (Denmark)

Skøt, Leif

1983-01-01

The symbiotic performance of four pea (Pisum sativum L.) cultivars in combination with each of four strains of Rhizobium leguminosarum was studied in growth chamber experiments in order to estimate the effects of cultivars, strains and cultivar × strain interaction on the variation in dry weight, N...

Een nieuwe ondersoort van Zosterops montana afkomstig van de Goenoeng Papandajan (West Java)

NARCIS (Netherlands)

Hoogerwerf, A.; Boer, de L.E.

1947-01-01

In zijn laatste revisie van het genus Zosterops (Journ. für Orn., vol. 87, 1939, p. 156-164) geeft Stresemann o.a. een schematische voorstelling van de horizontale en verticale verspreiding binnen deze Archipel van de vier voornaamste groepen van dit geslacht: montana, atricapilla, palpebrosa en

Genetic variability in Brazilian wheat cultivars assessed by microsatellite markers

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Ivan Schuster

2009-01-01

Full Text Available Wheat (Triticum aestivum is one of the most important food staples in the south of Brazil. Understanding genetic variability among the assortment of Brazilian wheat is important for breeding. The aim of this work was to molecularly characterize the thirty-six wheat cultivars recommended for various regions of Brazil, and to assess mutual genetic distances, through the use of microsatellite markers. Twenty three polymorphic microsatellite markers (PMM delineated all 36 of the samples, revealing a total of 74 simple sequence repeat (SSR alleles, i.e. an average of 3.2 alleles per locus. Polymorphic information content (PIC value calculated to assess the informativeness of each marker ranged from 0.20 to 0.79, with a mean of 0.49. Genetic distances among the 36 cultivars ranged from 0.10 (between cultivars Ocepar 18 and BRS 207 to 0.88 (between cultivars CD 101 and Fudancep 46, the mean distance being 0.48. Twelve groups were obtained by using the unweighted pair-group method with arithmetic means analysis (UPGMA, and thirteen through the Tocher method. Both methods produced similar clusters, with one to thirteen cultivars per group. The results indicate that these tools may be used to protect intellectual property and for breeding and selection programs.

Chemical composition and antioxidant activity of seven cultivars of guava (Psidium guajava) fruits.

Science.gov (United States)

Flores, Gema; Wu, Shi-Biao; Negrin, Adam; Kennelly, Edward J

2015-03-01

The antioxidant activity and identification of phenolic compounds of seven edible guava (Psidium guajava) cultivars that varied in colour from white to pink were examined. In the DPPH assay all four pink-pulp guavas (Barbie Pink, Homestead, Sardina 1, Sardina 2) included in the study showed higher activity than the white pulp cultivars (Yen 2 and Sayla) and less than the red pulp guava cultivar (Thai Maroon). In the ABTS(+) assay this trend was the same up to 20 min, but from 20 to 40 min Barbie Pink showed lower activity than the white guavas. Twenty-one compounds were characterised in the cultivars, and ten of them are reported for the first time in this fruit. Principle component analysis was performed to identify differences in chemistry among these cultivars. Our results suggest that the antioxidant activity and phytochemical composition of P. guajava vary significantly according to the cultivar and pulp colour. Copyright © 2014. Published by Elsevier Ltd.

Impact of vacuum cooking process on the texture degradation of selected apple cultivars.

Science.gov (United States)

Bourles, E; Mehinagic, E; Courthaudon, J L; Jourjon, F

2009-01-01

Thermal treatments are known to affect the textural properties of fruits and vegetables. This study was conducted to evaluate the influence of vacuum cooking process on the mechanical properties of various apple cultivars. A total of 10 apple cultivars were industrially processed by vacuum pasteurization at 95 degrees C for 25 min. The raw material was characterized by penetrometry, uniaxial double compression, soluble solid content, and titrable acidity. Textural properties of processed apples were analyzed by uniaxial double compression. As expected, for all cultivars, fruit resistance was lower after processing than before. Results showed that texture degradation due to vacuum pasteurization was different from one cultivar to another. Indeed, some cultivars, initially considered as the most resistant ones, such as Braeburn, were less suitable for processing, and became softer than others after thermal treatment. Consequently, it is worth noting that the texture classification of the investigated apple cultivars was changed by the vacuum-cooking process.

Discrimination of sugarcane according to cultivar by 1H NMR and chemometric analyses

Energy Technology Data Exchange (ETDEWEB)

Alves Filho, Elenilson G.; Silva, Lorena M.A.; Choze, Rafael; Liao, Luciano M. [Laboratorio de Ressonancia Magnetica Nuclear, Instituto de Quimica, Universidade Federal de Goias (UFG), Goiania, GO (Brazil); Honda, Neli K.; Alcantara, Glaucia B. [Departamento de Quimica, Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande, MS (Brazil)

2012-07-01

Several technologies for the development of new sugarcane cultivars have mainly focused on the increase in productivity and greater disease resistance. Sugarcane cultivars are usually identified by the organography of the leaves and stems, the analysis of peroxidase and esterase isoenzyme activities and the total soluble protein as well as soluble solid content. Nuclear magnetic resonance (NMR) associated with chemometric analysis has proven to be a valuable tool for cultivar assessment. Thus, this article describes the potential of chemometric analysis applied to 1H high resolution magic angle spinning (HRMAS) and NMR in solution for the investigation of sugarcane cultivars. For this purpose, leaves from eight different cultivars of sugarcane were investigated by {sup 1}H NMR spectroscopy in combination with chemometric analysis. The approach shows to be a useful tool for the distinction and classification of different sugarcane cultivars as well as to access the differences on its chemical composition. (author)

Transferência do fator caturra para o cultivar Mundo Novo de Coffea arabica Transfer of the CT gene to Mundo Novo cultivar

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A. Carvalho

1972-01-01

Full Text Available No presente trabalho são relatados os estudos realizados visando à introdução do gene Ct (caturra que contribui para reduzir a altura da planta, no cultivar Mundo" Novo de Coffea arabica.Estudaram-se, em ensaios de produtividade, as populações Fv F.,, F3 e F4. Nessas populações e principalmente entre os descendentes dos "caféeiros H 2077-2-5 e H 2077-2-12, foram selecionadas plantas homozigotas para os alelos Ct e também para os alelos responsáveis pela cor do fruto xc ou Xc. Essas combinações foram denominadas 'Catuaí Amarelo' e 'Catuaí Vermelho', respectivamente, e suas características são apresentadas. Os novos cultivares vêm-se mostrando de interesse econômico para as regiões cafeeiras não somente pelo porte pequeno, mas também pela produtividade, pelo vigor vegetativo e pela precocidade.The successful transfer of the Ct gene for short internode to the tall cultivar of Coffea arábica'Mundo Novo' is reported. Individual selections were carried out in the F1, F2, F3 and F4 generations. It was found that early selection in the F2 generation was quite effective. A remarkably good correlation was found between productitivity of F2 plants and the yield of the F3 and F4 generations. Plants of the F4 generation have shown reasonable uniformity and high yield in several trials. The new selections showed to be early producers. Two new cultivars were released namely 'Catuaí Amarelo' and 'Catuaí Vermelho'. The former has yellow fruits whereas the latter has red fruits. The plants are much shorter that the ones of Mundo Novo. The new cultivars have a very strong secondary and tertiary branching. Because of these characteristics Catuaí Amarelo and Catuaí Vermelho are being planted in large scale replacing the tall cultivars.

76 FR 21780 - Notice of Public Meeting; Central Montana Resource Advisory Council

Science.gov (United States)

2011-04-18

..., Lewistown, Montana 59457, (406) 538-1900. Persons who use a telecommunications device for the deaf (TDD) may... during normal business hours. The FIRS is available 24 hours a day, 7 days a week to leave a message or question with the above individual. You will receive a reply during normal business hours. Diane M. Friez...

Avaliação de cultivares de alfafa na Zona da Mata de Minas Gerais Evaluation of alfalfa cultivars in the region of Zona da Mata, Minas Gerais

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Francisco José da Silva Lédo

2004-10-01

Full Text Available Realizou-se este trabalho com o objetivo de avaliar e selecionar cultivares de alfafa (Medicago sativa L. mais adaptadas às condições edafoclimáticas da Zona da Mata de Minas Gerais. O ensaio foi conduzido no campo experimental da Embrapa Gado de Leite, em Coronel Pacheco-MG, no delineamento experimental de blocos casualizados com duas repetições. Foram avaliadas 59 cultivares no período de 31/8/1999 a 10/12/2001, realizando-se 16 cortes de avaliação. Avaliaram-se a produção de matéria seca (PMS, altura da planta (AP, vigor (VG, porcentagem de floração (FLO, relação folha/caule (RFC, e incidência de doenças (ID e pragas (IP. Para PMS, AP, VG, FLO e ID, observaram-se diferenças significativas entre as cultivares. As cultivares P-30, Crioula C-1, Crioula C-3 e Crioula C-2 foram as que apresentaram maiores PMS (13,17; 13,13; 13,00 e 12,48 t/ha/ano, respectivamente. As cultivares apresentaram maior FLO (18,98% e AP (54,13 cm nos cortes realizados no período de verão, quando comparado com os de inverno (6,11% e 46,60 cm, respectivamente. Com base nos resultados obtidos, foram selecionadas as cultivares P-30, Crioula C-1, Crioula C-3 e Crioula C-2.The objective of this experiment was to evaluate and select the alfalfa cultivars (Medicago sativa L. best adapted to the climate and soil of Zona da Mata, in Minas Gerais, Brazil. The trial was carried out at Embrapa Gado de Leite, in the experiment station located in Coronel Pacheco, MG, using a randomized complete block design with two replications. Fifty-nine cultivars studied between Sept. 9, 1999 and Dec. 10, 2001 were submitted to 16 evaluating cuts. Dry matter production (DMP, plant height (PH, vigor (VG, flowering percent (FLO, leaf/stem ratio (RFC and disease (D and pests (P occurrence were observed. There were significant differences among cultivars regarding to DMP, PH, VG, FLO and D. Cultivars P-30, Crioula C-3 and Crioula C-2 showed the highest DMP (13,17; 13,13; 13,00 e 12

DESEMPENHO DOS COMPONENTES DE PRODUÇÃO EM CULTIVARES DE SOJA

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Victor Alves Ribeiro

2015-12-01

Full Text Available Busca-se cultivares cada vez mais adaptadas e que expressem maiores níveis de produtividade, trazendo assim um melhor aproveitamento de áreas produtivas. Os componentes produtivos estão ligados à produtividade das cultivares de soja e são importantes no seu processo de seleção. Assim, este trabalho teve por objetivo avaliar duas cultivares de soja RR, com ciclos de maturação, precoce e superprecoce em sua adaptação a região central de Goiás. O delineamento foi conduzido em blocos casualizados com seis repetições. Os componentes de produção avaliados foram: Altura de plantas, número de grãos por planta, número de grãos por vagem, número de hastes, número de nós reprodutivos, número de vagens, número de vagens chochas, peso de grãos por planta, massa de mil grãos e produtividade. Os dados foram submetidos ao software Assistat para análises estatísticas e foi realizado o teste Tukey a 5% de probabilidade. As cultivares testadas apresentam variações nos caracteres produtivos avaliados e foram influenciados pelo hábito de crescimento. Através do número de nos reprodutivos foi possível identificar cultivares mais responsiva. A cultivar de hábito de crescimento determinado proporcionou maior rendimento de grãos.   A cultivar de com hábito de crescimento indeterminado foi desfavorecida pela variação pluviométrica durante o estádio fenológico R5.

Genetic Analysis of East Asian Grape Cultivars Suggests Hybridization with Wild Vitis.

Science.gov (United States)

Goto-Yamamoto, Nami; Sawler, Jason; Myles, Sean

2015-01-01

Koshu is a grape cultivar native to Japan and is one of the country's most important cultivars for wine making. Koshu and other oriental grape cultivars are widely believed to belong to the European domesticated grape species Vitis vinifera. To verify the domesticated origin of Koshu and four other cultivars widely grown in China and Japan, we genotyped 48 ancestry informative single nucleotide polymorphisms (SNPs) and estimated wild and domesticated ancestry proportions. Our principal components analysis (PCA) based ancestry estimation revealed that Koshu is 70% V. vinifera, and that the remaining 30% of its ancestry is most likely derived from wild East Asian Vitis species. Partial sequencing of chloroplast DNA suggests that Koshu's maternal line is derived from the Chinese wild species V. davidii or a closely related species. Our results suggest that many traditional East Asian grape cultivars such as Koshu were generated from hybridization events with wild grape species.

History of wheat cultivars released by Embrapa in forty years of research

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Eduardo Caierão

2014-11-01

Full Text Available In forty years of genetic breeding of wheat, Embrapa (Brazilian Agricultural Research Corporation has developed over a hundred new cultivars for different regions of Brazil. Information regarding identification of these cultivars is often requested from Embrapa breeders. Data on year of release, name of pre-commercial line, the cross made, and the company unit responsible for indication of the cultivar are not always easily accessible and are often scattered throughout different documents. The aim of this study was to conduct a historical survey of all the wheat cultivars released by Embrapa, aggregating the information in a single document. Since 1974, Embrapa has released 112 wheat cultivars, including 12 by Embrapa Soybean - CNPSo (Londrina, PR, 14 by Embrapa Cerrado - CPAC (Brasília, DF, 9 by Embrapa Agropecuária Oeste - CPAO (Dourados, MS, and 77 by Embrapa Wheat - CNPT (Passo Fundo, RS.

Desempenho de cultivares de tomateiro em sistema orgânico sob cultivo protegido Performance of organically grown tomato cultivars under greenhouse conditions

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Paulo César T de Melo

2009-12-01

Full Text Available A agricultura orgânica no Brasil cresce a taxas superiores a 30% ao ano, devido principalmente à maior conscientização dos consumidores que buscam alimentos saudáveis, livres de resíduos químicos e biológicos. Dentre as hortaliças cultivadas em sistema orgânico, o tomate constitui grande desafio para os produtores devido à inexistência de recomendações de manejo cultural e de cultivares desenvolvidas específicas para esse sistema de cultivo. Diante disso, o presente trabalho teve como objetivo avaliar o desempenho de cultivares de tomate sob sistema orgânico, em ambiente protegido. O experimento foi conduzido de maio a outubro de 2004 em campo, no município de Araraquara-SP. O delineamento experimental adotado foi blocos ao acaso, com quatro repetições e oito tratamentos (cultivares Avalon, Colibri, HTX-5415, HTX-8027, Sahel, San Marzano, San Vito e Jane. As plantas foram conduzidas em fileiras duplas, com duas hastes por planta no espaçamento de 0,8 m entre linhas e 0,6 m entre plantas (cerca de 20.000 plantas ha-1, sem poda apical. O híbrido Sahel destacou-se com o melhor desempenho para rendimento comercial. A traça-do-tomateiro se revelou como fator limitante à produção de tomate em sistema orgânico, sendo responsável, em média, por 17% de danos nos frutos colhidos das oito cultivares que foram avaliadas.Organic agriculture in Brazil has been increasing about 30% per year over the last few years, since consumers are seeking for healthier foods, i.e. nutritious and free of pesticide residues. Among organically grown vegetable crops, tomato is an attractive economic opportunity for growers. However, the lack of information about management practices and adapted cultivars to organic production systems under protected cultivation are pointed out as important constraints that prevents this activity to expand. This work aimed at evaluating the performance of indeterminate tomato cultivars in organic management systems

Comparison of foliar anatomy of ten bread wheat (triticum, poaceae) and ten barley (hordeum, poaceae) cultivars

International Nuclear Information System (INIS)

Ardic, M.; Sezer, O.; Ozgdsd, K.; Yaylaci, O. K.; Koyuncu, O.; Olgun, M.; Bascdftcd, Z. B.; Ayter, N. G.

2015-01-01

The aim of this study is to determine anatomical differences and classification of leaf and leaf cell characteristics (cuticle thickness, upper epidermis thickness, lower epidermis thickness, mesophyll thickness, parenchyma thickness and leaf thickness) between 10 bread wheat cultivars (Triticum aestivum L.) and 10 barley cultivars (Hordeum vulgare L.). Classification of leaf characteristics in bread wheat and barley cultivars and relationship between leaf characteristics are made by principal component and correlation analyses. Highest thickness belongs to W8 Mufitbey cultivar in mesophyll and lower epidermis and W1 Sonmez 01 cultivar have the lowest thickness of upper epidermis in bread wheat. In Barley, B1 Ince cultivar has highest leaf thickness mesophyll and parenchyma; lowest thickness of cuticle is included B7 Cumhuriyet 50 cultivar. All other cultivars have homogenous contents of leaf characteristics. (author)

Relative competitiveness of soybean cultivars with barnyardgrass

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Marlon Ouriques Bastiani

Full Text Available ABSTRACT The aim of this work was to evaluate the competitiveness between soybean cultivars and barnyardgrass, based on morphological and physiological characteristics of species. The experiments were conducted in completely randomized experimental design, with 4 replications. In the first study, for both soybean and barnyardgrass, it was determined the population of plants in which shoot dry matter became constant and independent of the population (16 plants∙pot−1 or 400 plants∙m−2. In the second study, 2 experiments were conducted to evaluate the competitiveness of BMX Apolo RR and BMX Potência RR soybean cultivars with barnyardgrass plants, both carried out in replacement series under different proportions of plants∙pot−1 (100:0; 75:25; 50:50; 25:75 and 0:100 between the crop and the weed. The analysis of the species competitiveness was determined through diagrams applied to replacement series experiments and use of relative competitiveness indexes. At 44 days after the emergence of species, the physiological and morphological parameters of the crop and the weed were evaluated. The BMX Apolo RR and BMX Potência RR soybean cultivars show similar competitiveness when competing with the barnyardgrass; therefore, the ability of one species to interfere on another is equivalent. For plant height, barnyardgrass displays higher competitiveness compared to BMX Apolo RR, with early cycle and short height. The intraspecific competition is more important to barnyardgrass than interspecific competition with soybean cultivars, resulting in negative effects on the morphological and physiological characteristics of species.

Characterisation of mucilages extracted from seven Italian cultivars of flax.

Science.gov (United States)

Kaewmanee, Thammarat; Bagnasco, Lucia; Benjakul, Soottawat; Lanteri, Silvia; Morelli, Carlo F; Speranza, Giovanna; Cosulich, M Elisabetta

2014-04-01

The chemical composition, physicochemical, functional and sensory properties of mucilages, extracted from seven Italian flax cultivars, were evaluated. All samples were composed of neutral and acidic sugars, with a low protein content. From the NMR data, a rhamnogalacturonan backbone could be inferred as a common structural feature for all the mucilages, with some variations depending on the cultivar. All the suspensions showed a poor stability, which was consistent with a low zeta potential absolute value. The viscosity seemed to be positively correlated with the neutral sugars and negatively with the amount of proteins. Functional properties were dependent on the cultivar. The sensory analysis showed that most mucilages are tasteless. All these outcomes could support the use of flaxseed mucilages for industrial applications. In particular, Solal and Festival cultivars could be useful as thickeners, due to their high viscosity, while Natural, Valoal and Kaolin as emulsifiers for their good surface-active properties. Copyright © 2013 Elsevier Ltd. All rights reserved.

Determination of Juglone concentration for differentiate two Musa spp cultivars

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Michel Leiva Mora

2002-04-01

Full Text Available The toxins production by fungal pathogenic can enhance penetration and colonization of the host tissues and reproduce symptoms of diseases. Juglone is the main and the most toxic metabolite characterized from the culture filtrate of Mycosphaerella fijiensis. In the present work it was used different concentrations of juglone (10, 25, 50 and 100 mg.l-1 and a control solution of methanol 10%. Foliar injections were performed in the underside of two last open leaves of Grande naine (AAA and Fougamou (ABB cultivars. The percentage of necrosis per plant was evaluated at 24 hours after the injection. The concentration of 100 mg.l-1 was able to produce necrotic symptoms in both cultivars; nevertheless with the 50 mg.l-1 was possible to obtain differences between the two cultivars. This result established a concentration for screening two Musa spp cultivars with different resistance levels to Black Leaf Streak by the use of juglone. Key word: banana leaf streak, Mycosphaerella fijiensis, selection, toxins

Analgesia e ação antiinflamatória da Arnica montana 12CH comparativamente ao cetoprofeno em cães Analgesic and anti-inflammatory effects of Arnica montana 12CH in comparison with ketoprofen in dogs

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Renata Navarro Cassu

2011-10-01

Full Text Available Objetivou-se avaliar os efeitos analgésico e antiinflamatório da Arnica montana 12CH comparativamente ao cetoprofeno em cadelas submetidas à ovariossalpingohisterectomia (OSH. Foram avaliadas 16 cadelas, distribuídas aleatoriamente em dois grupos de oito animais cada, tratados por via oral com 1mg kg-1 de cetoprofeno (TC e com cinco glóbulos de Arnica montana 12CH (TA. Decorridos 60 minutos, os animais foram tranquilizados com acepromazina (0,05mg kg-1, IV, seguindo-se indução e manutenção anestésica com propofol (5mg kg-1, IV e isofluorano, respectivamente. Foram mensurados: frequência cardíaca, frequência respiratória, pressão arterial sistólica, concentração final expirada de dióxido de carbono, concentração final expirada de isofluorano, variáveis hemogasométricas, concentração sérica de cortisol, grau de analgesia e de inflamação. Em casos de analgesia insuficiente, foi realizada suplementação com morfina (0,5mg kg-1, IM. A estatística foi realizada com ANOVA e teste de Tukey (PThis study aimed to evaluate the analgesic and anti-inflammatory effects of Arnica montana 12CH comparatively to ketoprofen in dogs undergoing ovariohysterectomy. Sixteen female dogs were randomly distributed in two groups of eight animals and received 1mg kg-1 of ketoprofen (TC and 5 globules of Arnica montana 12CH (TA by oral route. After 60 minutes, the dogs were sedated with acepromazine (0.05mg kg-1, IV, followed by anesthetic induction with propofol (5mg kg-1 IV and maintained with isoflurane. Heart rate, respiratory rate, systolic blood pressure, arterial blood gases, serum cortisol concentration and degree of analgesia and inflammation were measured. Additional morphine (0.5mg kg-1IM was given when the analgesia was insufficient. Statistical analyses were performed by ANOVA and Tukey tests (P<0.05. Cardiopulmonary stability was observed in both treatments during the surgery. The degree of analgesia and inflammation did not

Morphological composition of cultivar of Urochloa brizantha under light intensities

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Erikelly Aline Ribeiro de Santana

2013-12-01

Full Text Available The implementation of silvopastoral systems (SSP is a management option that gives good results for animal production, but the shading of the trees can alter production, growth behavior and morphological composition of the forage. The aim of the study was to evaluate the morphological composition of Urochloa brizantha cultivars Marandu and Piatã under natural light and artificial shading of 30 and 60%. The experiment was conducted at FMVZ - UNESP, Botucatu. The experimental design was a randomized block in factorial arrangement 3 x 2 (three shading levels: 0, 30 and 60% and two cultivars: Marandu and Piatã with three replications and repeated measures in time (3 cuts. Sample collection occurred when the cultivars reached in 35 cm of height. Significant effects (P<0.05 of cultivar x shade x cut interaction were observed on the dry matter production of leaves and stems (Table 1. The higher production of leaves and stems (P<0.05 occurred for Piatã under natural light in the third cut (3731 and 1920 kg/ha, respectively. The absence of shade favored greater leaf production, 35 and 27% higher than the reductions of 30 and 60% respectively. The increment of stems for Piatã under natural light is related to the increase of inflorescences. The leaf:stem ratio was higher (P< 0.05 for Marandu under natural light (Table 2, with effect from the interaction cultivar x brightness level. A significant effect (P<0.05 cultivar x level of light reduction for light interception parameter was detected (Table 2. For Marandu, light levels were not influenced (P<0.05 light traps (Table 2, being close to the 95% criterion used for pasture management, justified by the collection at the point of balance between forage productivity and nutritional content, and strong relationship with high input grazing. The results indicate that the morphological composition of the cultivars is modified by reducing the light intensity.

Crescimento radicular e aéreo de cultivares de arroz de terras altas em função da calagem Root and shoot growth of upland rice cultivars as affected by lime application

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Carlos Alexandre Costa Crusciol

2012-01-01

Full Text Available O presente trabalho teve como objetivo avaliar o crescimento radicular e da parte aérea, além da eficiência de absorção de nutrientes pelas cultivares de arroz Caiapó e Maravilha, em função da calagem. O experimento foi desenvolvido em casa de vegetação, sendo os tratamentos constituídos pelas cultivares Caiapó e Maravilha combinadas com os índices de saturação por bases (V% de 10, 40 e 70. O delineamento experimental utilizado foi inteiramente casualizado, com quatro repetições. Foram avaliados o número de perfilhos, comprimento radicular, matéria seca de raízes, folhas e colmos, o teor foliar e a eficiência de absorção dos macronutrientes. De forma geral, observou-se que a cultivar moderna superou a tradicional em matéria seca de raízes, comprimento radicular, número de colmos, matéria seca de colmos e da parte aérea, além de acumular mais nutrientes a cultivar tradicional, mesmo nas condições de maior acidez. No entanto, os teores de nutrientes foram maiores na cultivar Caiapó. A cultivar Maravilha possui maior crescimento radicular e da parte aérea, nos diversos níveis de acidez, enquanto a Caiapó tem maior eficiência de absorção dos nutrientes do solo. A V% de 40 é a mais efetiva para ambas as cultivares.This work aimed to evaluate root growth, shoot development and nutrient absorption efficiency by rice cultivars Caiapó and Maravilha as affected by lime application. The experiment was carried out in a greenhouse, with treatments set up by Caiapó and Maravilha cultivars in combination with the base saturation (V% of 10%, 40% and 70%. The experiment was in a randomized complete block design, with four replications. The number of tillers, root length, root dry matter, leaves and stems, leaf content and macronutrients absorption efficiency were evaluated. Comparing cultivars, Maravilha cultivar presented higher root dry weight, root length, number of stems, dry matter of stems and shoot than Caiap

Cultivar variability of patatin biochemical characteristics: table versus processing potatoes (Solanum tuberosum L.).

Science.gov (United States)

Bárta, Jan; Bártová, Veronika; Zdráhal, Zbyněk; Sedo, Ondrej

2012-05-02

Biochemical characteristics of patatin proteins purified by ion-exchange and affinity chromatography from tubers of 20 potato cultivars were studied to evaluate their genotype differences with respect to utility groups, table potato cultivars (TPCs) and processing potato cultivars (PPCs). Both groups of cultivars showed similar values of protein content in dry matter (3.98-7.39%) and of patatin relative abundance (5.40-35.40%). Three mass levels (∼40.6, 41.8, and 42.9 kDa) of purified patatins were found by MALDI-TOF MS within all cultivars. Differences among mass levels corresponding with the mass of sugar antenna (∼1.2 kDa) confirmed the previous concept of different glycosylation extentsin patatin proteins. It was showed that the individual types of patatin varying in their masses occur in the patatin family in a ratio specific for each of the cultivars, with the lowest mass type being the major one. Electrophoretic analyses demonstrated wide cultivar variability in number of patatin forms. Especially 2D-PAGE showed 17-23 detected protein spots independently on the utility group. Specific lipid acyl hydrolase (LAH) activity of purified patatins from the individual tested cultivars varied between 0.92 and 5.46 μmol/(min mg). Patatin samples within most of the TPCs exhibited higher values of specific LAH activity than samples of PPCs. It may be supposed that individual patatin forms do not have similar physiological roles.

Methods to classify maize cultivars in use efficiency and response to nitrogen

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Cleiton Lacerda Godoy

2013-10-01

Full Text Available n plant breeding programs that aim to obtain cultivars with nitrogen (N use efficiency, the focus is on methods of selection and experimental procedures that present low cost, fast response, high repeatability, and can be applied to a large number of cultivars. Thus, the objectives of this study were to classify maize cultivars regarding their use efficiency and response to N in a breeding program, and to validate the methodology with contrasting doses of the nutrient. The experimental design was a randomized block with the treatments arranged in a split-plot scheme with three replicates and five N doses (0, 30, 60, 120 and 200 kg ha-1 in the plots, and six cultivars in subplots. We compared a method examining the efficiency and response (ER with two contrasting doses of N. After that, the analysis of variance, mean comparison and regression analysis were performed. In conclusion, the method of the use efficiency and response based on two N levels classifies the cultivars in the same way as the regression analysis, and it is appropriate in plant breeding routine. Thus, it is necessary to identify the levels of N required to discriminate maize cultivars in conditions of low and high N availability in plant breeding programs that aim to obtain efficient and responsive cultivars. Moreover, the analysis of the interaction genotype x environment at experiments with contrasting doses is always required, even when the interaction is not significant.

Responses of east African highland banana (EAHB-AAA) cultivars to ...

African Journals Online (AJOL)

ACSS

50% among cooking cultivars, and less than 40% to dessert cultivars. Leaf orientation was significant to folding with cooking variety type opening leaves widely (up to 100o), and enhancing excessive leaf plant dehydration, even during stressful conditions. Soil evapo-transpiration showed that cvs. Kisansa and Mpologoma ...

Effect of environment and cultivar on the expression of banana ...

African Journals Online (AJOL)

... were evaluated for BSV expression so as to determine the tolerant cultivars under field and greenhouse conditions and stages of disease expression. A number of factors including plant age, cultivar, season and growth site were investigated in the greenhouse and field to assess their effect on BSD symptom expression.

Assessing the genetic diversity of cultivars and wild soybeans using ...

African Journals Online (AJOL)

In this study, we demonstrated the differences of genetic diversity level among 40 soybean accessions of cultivars, landraces and wild soybeans collected in the Shanxi Agricultural University using 40 simple sequence repeat (SSR) primer pairs. The structure based on model result showed that the cultivars, landraces and ...

Atividade antioxidante de frutos de quatro cultivares de pessegueiro

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Cláudia Mendes dos Santos

2013-06-01

Full Text Available Esforços são empregados para identificar plantas com teores de antioxidantes que conferem benefícios à saúde. A capacidade antioxidante do pêssego deve-se aos compostos fenólicos, vitamina C e carotenoides. O objetivo deste trabalho foi caracterizar quatro cultivares de pessegueiro (Aurora, Biuti, Diamante e Douradão em relação à capacidade antioxidante, determinando o teor dos compostos antioxidantes relacionados a essa atividade. Os frutos foram separados em dois grupos: sem armazenamento e armazenados por cinco dias à temperatura ambiente. Foram determinados os teores de vitamina C, carotenoides, compostos fenólicos e a capacidade antioxidante, pelos métodos DPPH e β-caroteno/ácido linoleico. As quatro cultivares mostraram-se ricas em substâncias antioxidantes, porém a intensidade dessa ação foi diferenciada entre elas. A cultivar Biuti apresentou maior teor das substâncias analisadas e maior atividade antioxidante em relação às outras cultivares. Foi observado que o potencial antioxidante dos frutos de pêssego aumentou durante o período de armazenamento.

Nutritional composition of new peanut (Arachis hypogaea L.) cultivars

Energy Technology Data Exchange (ETDEWEB)

Campos-Mondragon, M. G.; Calderon de la Barca, A. M.; Duran-Prado, A.; Campos-Reyes, L. C.; Oliart-Ros, R. M.; Ortega-Garcia, J.; Medina-Juarez, L. A.; Angulo, O.

2009-07-01

Six peanut (Arachis hypogaea L.) cultivars (Col-24-Gro, Col-61-Gto, VA-81-B, Ranferi Diaz, NC-2 and Florunner) were studied for agricultural yield, chemical composition (protein, fat, carbohydrates, fiber and ash), amino acid profile, digestibility, fatty acid profile, tocopherol and sterol contents. Results indicated that Ranferi Diaz and Col-61-Gto presented the highest yield (6.3 Ton/ha). Protein content was from 23.5 to 26.6% and fat content ranged from 49.8-53.4%. Mean digestibility was 86%. Lysine and threonine levels in all cultivars were sufficient to meet human requirements. Total saturated fatty acids ranged from 15-18%. The oleic/linoleic ratio was estimated 1.3-1.4. Tocopherol levels varied from 390 to 706 ppm. The highest tocopherol levels corresponded to the cultivars with the lowest yield. The alpha tocopherol content was estimated at 90-150 ppm, while gamma tocopherol was 270-570 ppm. The main sterol present was A- sitosterol (approx. 65%). Ranferi Diaz variety presented the highest agronomic yield and the highest protein content but low oleic acid, low sterols and low total tocopherols. The differences among cultivars suggest differences in their applications. (Author) 40 refs.

Effective recreation visitor communication strategies: Rock climbers in the Bitterroot Valley, Montana

Science.gov (United States)

William T. Borrie; James A. Harding

2002-01-01

A four-stage model of decisionmaking was investigated in the context of low-impact practices among rock climbers in the Bitterroot Valley of Montana. Previous research has suggested that knowing what to do to minimize environmental and social impacts may not be the only factor limiting compliance with recommended visitor behaviors. Results from a sample of climbers at...

Measuring effectiveness of three postfire hillslope erosion barrier treatments, western Montana, USA

Science.gov (United States)

Peter R. Robichaud; Frederick B. Pierson; Robert E. Brown; Joseph W. Wagenbrenner

2008-01-01

After the Valley Complex Fire burned 86 000 ha in western Montana in 2000, two studies were conducted to determine the effectiveness of contour-felled log, straw wattle, and hand-dug contour trench erosion barriers in mitigating postfire runoff and erosion. Sixteen plots were located across a steep, severely burned slope, with a single barrier installed in 12 plots (...

Desempenho de cultivares de alface crespa em dois ambientes de cultivo em sistema hidropônico Performance of lettuce cultivars grown in two environments, in the NFT hydroponic system

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SF Blat

2011-03-01

Full Text Available Este trabalho foi desenvolvido em Ribeirão Preto-SP, de 06/02 a 07/04 de 2006. O objetivo foi avaliar o desempenho de cinco cultivares de alface (Pira Roxa, Belíssima, Locarno, Crespona Gigante e Verônica em dois ambientes de cultivo (casa de vegetação climatizada e não climatizada em sistema hidropônico NFT. O delineamento experimental foi em blocos casualizados para cada ambiente com três repetições sendo cinco cultivares. Os ambientes foram comparados por meio de análise conjunta. Avaliaram-se a massa fresca e seca da parte aérea, massas fresca e seca do caule, massa fresca e seca da raiz, número de folhas maiores que 10 cm e número total de folhas. Não houve efeito significativo da interação cultivares e ambientes, demonstrando que as cultivares tiveram comportamento similar em ambos os ambientes.This research was carried out in Ribeirão Preto, São Paulo State, Brazil, from February to April, 2006. The performance of five lettuce cultivars (Pira Roxa, Belíssima, Locarno, Crespona Gigante and Verônica was evaluated, growing the plants in two environments (conventional and acclimatized greenhouse in hydroponic system NFT. A randomized-block experimental design was used for each environment, with three replications and five cultivars. The environments were compared through joint analysis. Evaluations were done for fresh and dry mater of the aboveground part, stem, and roots; number of leaves larger than 10 cm and total number of leaves. The cultivars Crespona Gigante and Verônica were prominent with regard to green and dry mass of the aboveground part, leaves, and roots, as well as to the number of leaves larger than 10 cm. The interaction cultivar x environment was not significant, demonstrating that the cultivars had similar behavior in both environments.

Genetic diversity assessed by microsatellite markers in sweet corn cultivars

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Ana Daniela Lopes

2015-12-01

Full Text Available Information on genetic diversity is essential to the characterization and utilization of germplasm. The genetic diversity of twenty-two sweet corn cultivars (seventeen open-pollinated varieties, OPV, and five hybrids, H was investigated by applying simple sequence repeat markers. A total of 257 primers were tested, of which 160 were found to be usable in terms of high reproducibility for all the samples tested; 45 were polymorphic loci, of which 30 were used to assess the genetic diversity of sweet corn cultivars. We detected a total of 86 alleles using 30 microsatellite primers. The mean polymorphism was 82 %. The highest heterozygosity values (Ho = 0.20 were found in the PR030-Doce Flor da Serra and BR427 III OPVs, whereas the lowest values (0.14 were recorded in the MG161-Branco Doce and Doce Cubano OPVs. The polymorphism information content ranged from 0.19 (Umc2319 to 0.71 (Umc2205. The analysis of molecular variance revealed that most of the genetic variability was concentrated within the cultivars of sweet corn (75 %, with less variability between them (25 %. The consensus tree derived from the neighbor-joining (NJ algorithm using 1,000 bootstrapping replicates revealed seven genetically different groups. Nei’s diversity values varied between 0.103 (Doce do Hawai × CNPH-1 cultivars and 0.645 (Amarelo Doce × Lili cultivars, indicating a narrow genetic basis. The Lili hybrid was the most distant cultivar, as revealed by Principal Coordinates Analysis and the NJ tree. This study on genetic diversity will be useful for planning future studies on sweet corn genetic resources and can complement the breeding programs for this crop.

Seed-storage Mycoflora of Peanut Cultivars Grown in Nigerian Savanna

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Nwankiti, AO.

2003-01-01

Full Text Available Storage of peanut is increasingly becoming important both among growers and users of the crop in Nigerian savanna. The aim is to sell the produce and maximize benefits accruing from the crops during scarcity. Very often, these envisaged advantages fail due to unfavourable market forces, thus compelling them to sell at a loss or store them across seasons for periods ranging from one to two years. However, information on fungi associated with storage of such peanuts in Nigerian savanna and its attendant problems are yet to be investigated. Thus, the seed mycoflora and viability seven common peanut cultivars stored under conditions similar to traditional settings were investigated using different isolating techniques. The peanut cultivars were RMP 12, RMP 91, RRB, 48-115B, M554-76, 55-437 Ex-Dakar and a local cultivar. None of these cultivars possessed resistance to in vitro colonization by fungi. Aspergillus niger, Aspergillus flavus and Rhizopus stolonifer were consistently isolated from all the cultivars from almost all isolating techniques. Other fungi were Fusarium chlamydosporium, F. roseum, F. oxysporium, Penicillium spp., Curvularia spp., Botryodiplodia theobromae, Macrophomina phaseolina and Sclerotium rolfsii. Relative percentages, however, varied with individual fungi and peanut cultivars. The test with seven different types of growth media gave the highest fungi recovery rate than the blotter paper technique. Seed viability was lower with peanut seeds stored for two years. Also, the relative percentage occurrence of individual fungi was significantly higher with seeds stored for two years. While we recommend the use of growth media for recovery and study of seed mycoflora, peanut seeds should not be stored for more than one year.

Glucosinolates, Carotenoids, and Vitamins E and K Variation from Selected Kale and Collard Cultivars

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Moo Jung Kim

2017-01-01

Full Text Available Glucosinolates, carotenoids, and fat-soluble vitamins E and K contents were analyzed from various kale and collard cultivars at mature stage. We found a significant difference in these phytonutrients among cultivars. Among kale cultivars, “Beira” and “Olympic Red” were the highest in the total glucosinolate and “Toscano” kale was the highest in total carotenoid content. “Scarlet” kale was highest in tocopherols. For collard, total glucosinolate was the highest in “Top Bunch” while carotenoids were the highest in “Green Glaze.” An accession PI261597 was the highest in phylloquinone. In addition to the total content of each phytonutrient class, their composition differed among cultivars, indicating that each cultivar may have differential regulatory mechanisms for biosynthesis of these phytonutrients. Our result indicates that cultivar selection may play an important role in consumption of kale and collard with greater nutritional benefit. Therefore, the result of this study will provide a more thorough profile of essential and nonessential phytonutrients of kale and collard cultivars for consumers’ choice and for future research on nutritional value of these crops.

Genetic Analysis of East Asian Grape Cultivars Suggests Hybridization with Wild Vitis.

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Nami Goto-Yamamoto

Full Text Available Koshu is a grape cultivar native to Japan and is one of the country's most important cultivars for wine making. Koshu and other oriental grape cultivars are widely believed to belong to the European domesticated grape species Vitis vinifera. To verify the domesticated origin of Koshu and four other cultivars widely grown in China and Japan, we genotyped 48 ancestry informative single nucleotide polymorphisms (SNPs and estimated wild and domesticated ancestry proportions. Our principal components analysis (PCA based ancestry estimation revealed that Koshu is 70% V. vinifera, and that the remaining 30% of its ancestry is most likely derived from wild East Asian Vitis species. Partial sequencing of chloroplast DNA suggests that Koshu's maternal line is derived from the Chinese wild species V. davidii or a closely related species. Our results suggest that many traditional East Asian grape cultivars such as Koshu were generated from hybridization events with wild grape species.

Short communication. Major macro element exports in fruits of diverse almond cultivars

Energy Technology Data Exchange (ETDEWEB)

Alonso, J. M.; Espada, J. L.; Socias, R.; Socias i Company, R.

2012-11-01

The amount of the major macro elements required to produce a given crop has been determined for a set of 11 almond (Prunus amygdalus Batsch) cultivars growing in the Middle Ebro Valley (NE Spain). A wide diversity of nutrient exports was found among the different cultivars. Although the production of kernels is the main objective when growing almonds, all the different fruit components: the mesocarp (hull), the endocarp (shell) and the seed (kernel), were taken into account. The different fruit components showed a great variation among cultivars, and the amount of fruit dry matter required for producing 1 kg of kernel ranged from 4.32 kg in Guara to 10.56 kg in Desmayo Largueta. Similarly, the macroelement requirements to produce a given amount of kernels varied among the different cultivars. Guara has proved to be the most effective cultivar in taking advantage of the mineral elements for producing a crop, showing that this efficiency is independent of the shell type. (Author) 9 refs.

Fatores que afetam a qualidade de sementes de sorgo: cultivares e localidades Evaluation of sites of production on seed quality of different sorghum cultivars

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Jocely Andreuccetti Maeda

1982-01-01

Full Text Available Avaliou-se a qualidade de sementes de quatro cultivares de sorgo granífero provenientes de três localidades, em diversas épocas de armazenamento, através de testes de germinação, primeira contagem e envelhecimento rápido. A germinação e o vigor, que aos dois meses de armazenamento se encontravam com valores relativamente baixos, tiveram grande variação com locais e cultivares, sendo melhores as sementes provenientes de Manduri e do híbrido Contibrasil 102.Seeds of four cultivars of sorghum (Contibrasil 102, DA E-57, Pioneer 8417 and TEY 101 produced at three localities (Campinas, Manduri, and Mococa, in the State of São Paulo, Brazil, had their quality evaluated after different periods of storage. Germination, first count and rapid aging tests, were used for this purpose. Germination and vigor were already low after two months of storage, and variations were also noted in relation with locations and cultivars. Best results were obtained with seeds of the hybrid Contibrasil 102 produced in Manduri.

Dubois Quadrangle, Idaho and Montana

International Nuclear Information System (INIS)

Wodzicki, A.; Krason, J.

1981-06-01

Within the Dubois Quadrangle (Idaho and Montana), environments favorable for uranium deposits, based on National Uranium Resource Evaluation criteria, occur in the McGowan Creek Formation and within some Tertiary sedimentary basins. The Mississippian McGowan Creek Formation consists of uraniferous, black, siliceous mudstone and chert with minor porous sedimentary channels. In the southern Beaverhead Mountains it has been fractured by a bedding-plane fault, and uranium has been further concentrated by circulating groundwater in the porous channels and brecciated zones, both of which contain about 200 ppM uranium. The northern parts of the Pahsimeroi River, Lemhi River, Medicine Lodge Creek, Horse Prairie, and Sage Creek Basins are considered favorable for sandstone-type uranium deposits. Evidence present includes suitable source rocks such as rhyolitic flow breccia, laharic deposits, or strongly welded tuffs; permeable sediments, including most sandstones and conglomerates, providing they do not contain devitrified glass; suitable reductants such as lignite, pyrite, or low-Eh geothermal water; and uranium occurrences

In vitro Digestibility and Gas Production Characteristics of Four Napier (Pennisetum purpureum Cultivars as Fresh Fodder

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Zailan, M.Z.

2016-12-01

Full Text Available Napier grass was first introduced to Malaysia in the 1920?s and there were many cultivars introduced in Malaysia since 1950?s. However, there is a need to have comparative evaluation of these Napier cultivars so that definite recommendations can be made in the choice and management of the respective cultivars. The experiment was conducted to evaluate the in vitro digestibility and gas production characteristic of four Napier (Pennisetum purpureum cultivars, namely Common, Silver, Red and Dwarf Napier. Common, Silver and Red Napier are classified as tall cultivars while Dwarf Napier is a short cultivar. Gas production was determined at 2, 4, 6, 8, 12, 24, 32, 36, 48, 72 and 96 h of incubation period and its kinetics was described using the equation p = a + b (1 ? e?ct. Dwarf Napier had the highest (P 0.05 in the rate of gas production (C of Napier cultivars which ranged from 0.024 to 0.035 h-1. The metabolisable energy (ME was significantly higher in Dwarf and Red Napier cultivars (8.7 MJ/kg DM compared to Silver and Common Napier cultivars. The cumulative gas production within 32 h was highest (P0.05 ranged from 52 to 73 mM, 88 to 70%, 6.2 to 6.8%, respectively.. Dwarf Napier cultivar had superior nutritional quality. Dwarf and Red Napier cultivars could be classified as high quality grasses due to their high digestibility, gas production and degradation rates compared to the other cultivars. The low quality of Common and Silver Napier cultivars is mainly reflected by the extensive lignification of their cell wall structure.

Genetic variation within the olive (Olea europaea L.) cultivar Oblica ...

African Journals Online (AJOL)

USER

2010-05-17

May 17, 2010 ... Oblica is the predominant olive cultivar in Croatia, spread widely in all the olive growing regions. Morphological variability within the cultivar is well documented but often it has been attributed to environmental factors rather than to genetic ones. In order to investigate intracultivar variability on the molecular ...

Genetic variation within the olive ( Olea europaea L. ) cultivar Oblica ...

African Journals Online (AJOL)

Oblica is the predominant olive cultivar in Croatia, spread widely in all the olive growing regions. Morphological variability within the cultivar is well documented but often it has been attributed to environmental factors rather than to genetic ones. In order to investigate intracultivar variability on the molecular level, olive ...

IPR CATUARA TM – new cultivar of high gluten wheat

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Carlos Roberto Riede

2015-03-01

Full Text Available The wheat cultivar IPR Catuara TM, obtained from a cross between the line LD 975 and the cultivar IPR 85, exhibits high gluten strength, which will allow the milling industry to supplement flours from wheats with weaker gluten strength, resulting in better quality products for the final consumer.

Characterization of zinc uptake, binding, and translocation in intact seedlings of bread and durum wheat cultivars

International Nuclear Information System (INIS)

Hart, J.J.; Norvell, W.A.; Welch, R.M.; Sullivan, L.A.; Kochian, L.V.

1998-01-01

Durum wheat (Triticum turgidum L. var durum) cultivars exhibit lower Zn efficiency than comparable bread wheat (Triticum aestivum L.) cultivars. To understand the physiological mechanism(s) that confers Zn efficiency, this study used 65Zn to investigate ionic Zn2+ root uptake, binding, and translocation to shoots in seedlings of bread and durum wheat cultivars. Time-dependent Zn2+ accumulation during 90 min was greater in roots of the bread wheat cultivar. Zn2+ cell wall binding was not different in the two cultivars. In each cultivar, concentration-dependent Zn2+ influx was characterized by a smooth, saturating curve, suggesting a carrier-mediated uptake system. At very low solution Zn2+ activities, Zn2+ uptake rates were higher in the bread wheat cultivar. As a result, the Michaelis constant for Zn2+ uptake was lower in the bread wheat cultivar (2.3 micromolar) than in the durum wheat cultivar (3.9 micromolar). Low temperature decreased the rate of Zn2+ influx, suggesting that metabolism plays a role in Zn2+ uptake. Ca inhibited Zn2+ uptake equally in both cultivars. Translocation of Zn to shoots was greater in the bread wheat cultivar, reflecting the higher root uptake rates. The study suggests that lower root Zn2+ uptake rates may contribute to reduced Zn efficiency in durum wheat varieties under Zn-limiting conditions

Cultivar and year-to-year variation of phytosterol content in rye (Secale cereale L.)

DEFF Research Database (Denmark)

Zangenberg, M.; Hansen, H.B.; Jørgensen, J.R.

2004-01-01

on phytosterol content in the different cultivars. The studied cultivars had all the lowest phytosterol contents in the dry and warm harvest season of 1999. Although there were statistically significant cultivar and year-to-year variations in the sterol composition (p

Efeito de doses reduzidas de oxyfluorfen em cultivares de algodoeiro Effect of reduced oxyfluorfen rates on cotton cultivars

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O.M. Yamashita

2008-01-01

Full Text Available O agronegócio do algodão apresenta-se, no Brasil, como uma atividade de grande importância para a economia nacional, ocupando posição de destaque no processo produtivo do Estado do Mato Grosso. Para que a cultura possa expressar o máximo potencial produtivo, é necessária a adoção de técnicas de manejo e práticas agronômicas, visando o controle das plantas daninhas. A fim de que a lavoura se mantenha limpa e livre de matocompetição, o controle químico é o método mais utilizado. Os herbicidas registrados para algodão devem ser aplicados, quando do estabelecimento da cultura, em jato dirigido. O contato desses produtos, como o oxyfluorfen, nas folhas pode incorrer em fitointoxicação e prejuízos para o produtor. O objetivo do presente trabalho foi mensurar o potencial de danos provocados pelo oxyfluorfen, quando em contato com diferentes cultivares de algodoeiro em estádio inicial de desenvolvimento. Para isso, foram avaliados cinco cultivares, tratados com 90 e 180 g ha-1 do herbicida, aplicado em plantas com 15 e 30 dias de emergência. Quanto às variáveis analisadas (fitointoxicação, altura de planta, número de folhas, massa seca de planta, foi possível observar que não houve diferença entre cultivares e que as plantas menores foram mais afetadas que as mais velhas, havendo aumento dos danos à medida que as doses eram aumentadas.Cotton agribusiness is a very important economic activity in Brazil, occupying a prominent position in the productive process of the state of Mato Grosso. For cotton crop to express its maximum productive potential, it is necessary to adopt handling techniques and agronomic practices seeking the control of weeds. For farming to stay clean and free from weed competition, chemical control is the most frequently used method. The herbicides registered for cotton crop should be applied when the culture is established in driven jet. The contact of products, such as oxyfluorfen, on the leaves may

Quantitative and qualitative parameters in Acorn squash cultivar in the conditions of the Slovak Republic

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Miroslav Šlosár

2018-02-01

Full Text Available The species Cucurbita pepo includes several types of squashes; in Slovak Republic, well-known and oftenly grown squash types are patisson, zucchini, spaghetti squash, oil pumpkin etc. Several interesting squash types of Cucurbita pepo are grown abroad, including Acorn squash which is well-known mainly in USA. The aim of this study was to evaluate the important quantitative (yield per hectare, average fruit weight and qualitative (total carotenoids, ascorbic acid, antioxidant activity, total soluble solids yield parameters of Acorn squash fruits in comparison with patisson which is typical squash type of Cucurbita pepo in Slovak Republic. The field trial was realised in Košice-Šaca in 2016. Within experiment, four cultivars of Acorn type pumpkin were tested (Thelma Sanders; Jet Set; Table Gold; Cream of The Crop. The patisson 'Orfeus' was used as a comparative cultivar for evaluation of individual parameters of Acorn type pumpkin cultivars. Matured pumpkin fruits were harvested on the 7th September 2016. From aspect of yield quantity, Acorn cultivars are appeared as very interesting squash type with good yield potential for growing. The highest yield of squash fruits was found in the cultivar 'Cream of The Crop' (17.8 t.ha-1. In mentioned Acorn cultivar, the yield was higher about 87.4% compared to the tested patisson cultivar 'Orfeus' (9.5 t.ha-1. On the contrary, the average weight of squash fruits was reached in patisson cultivar 'Orfeus' (780.7 g. The qualitative parameters of fruits were expressively influenced by squash cultivar. The content of total carotenoids, ascorbic acid and total soluble solids was markedly higher in all Acorn cultivars, compared to the patisson cultivar 'Orfeus'. The highest content of total carotenoids (26.74 mg.kg-1 fresh weight and ascorbic acid (238.79 mg.kg-1 f. w. was found in the squash cultivar 'Table Gold'. The highest content of total soluble solids was determined in the cultivar 'Jet Set' (3.8 �

Sensory and quality analysis of different melon cultivars after prolonged storage.

Science.gov (United States)

Hoberg, Edelgard; Ulrich, Detlef; Schulz, Hartwig; Tuvia-Alkali, Sharon; Fallik, Elazar

2003-10-01

The purpose of this work was to evaluate the sensory and general quality of four different melon cultivars (Cucumis melo L.) immediately after harvest and at the end of storage and marketing simulation. After 16 days of storage at 5 degrees C and additional 3 days at 20 degrees C, only cultivar 'C-8' had a poor general appearance due to significant low firmness and relatively high decay incidence compared to the cultivars '5080', 'Ideal' and '7302'. The cultivar '7302' was found to have the higher overall quality. The human-sensory and organoleptic analyses revealed that the cultivars can be differentiated on the basis of retronasal odour. The texture of the melons seems to be dependent on the genotype. All the complex perceptions analysed in this work contribute to the acceptability, which is in the fresh fruits of '7302' the best and in 'Ideal' the worst. After storage and marketing simulation 'Ideal' and 'C-8' are no longer favoured, but '5080' and '7302', despite different characters, were found to be similarly accepted. It can be concluded that with the aid of the human-sensory method developed to characterize the melon varieties it is possible to distinguish the different genotypes.

THE INFLUENCE OF POTATO CYST NEMATODE G. ROSTOCHIENSIS INFESTATION ON DIFFERENT POTATO CULTIVARS

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Gregor Urek

2008-07-01

Full Text Available The potato cyst nematode Globodera rostochiensis is one of the most serious pests of potato in Slovenia. Precise nematode identification and knowledge about potato cultivars, which are most suitable for growing in the Slovenian climate conditions and most resistant to G. rostochiensis, are necessary to develop an effective integrated pest control. Here we report the results of the influence of G. rostochiensis pathotype Ro1/4 on the yield of different potato cultivars: the susceptible cultivar Desiree, the resistant cultivars White Lady, Miranda, Aladin, Sante and Adora, and the clone KIS 94-1/5-14. The yield of cv. White Lady was the highest and that of susceptible cv. Desiree the lowest. The influence of several resistant and one susceptible potato cultivars on population dynamics of G. rostochiensis was also determined. The total number of cysts/100 cm3 and the number of eggs and juveniles per cyst increased in the susceptible cv. Desiree and decreased in the resistant cultivars White Lady, Sante and Adora.

Comparative Ability of Oropsylla montana and Xenopsylla cheopis Fleas to Transmit Yersinia pestis by Two Different Mechanisms.

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B Joseph Hinnebusch

2017-01-01

Full Text Available Transmission of Yersinia pestis by flea bite can occur by two mechanisms. After taking a blood meal from a bacteremic mammal, fleas have the potential to transmit the very next time they feed. This early-phase transmission resembles mechanical transmission in some respects, but the mechanism is unknown. Thereafter, transmission occurs after Yersinia pestis forms a biofilm in the proventricular valve in the flea foregut. The biofilm can impede and sometimes completely block the ingestion of blood, resulting in regurgitative transmission of bacteria into the bite site. In this study, we compared the relative efficiency of the two modes of transmission for Xenopsylla cheopis, a flea known to become completely blocked at a high rate, and Oropsylla montana, a flea that has been considered to rarely develop proventricular blockage.Fleas that took an infectious blood meal containing Y. pestis were maintained and monitored for four weeks for infection and proventricular blockage. The number of Y. pestis transmitted by groups of fleas by the two modes of transmission was also determined. O. montana readily developed complete proventricular blockage, and large numbers of Y. pestis were transmitted by that mechanism both by it and by X. cheopis, a flea known to block at a high rate. In contrast, few bacteria were transmitted in the early phase by either species.A model system incorporating standardized experimental conditions and viability controls was developed to more reliably compare the infection, proventricular blockage and transmission dynamics of different flea vectors, and was used to resolve a long-standing uncertainty concerning the vector competence of O. montana. Both X. cheopis and O. montana are fully capable of transmitting Y. pestis by the proventricular biofilm-dependent mechanism.

The contrasting responses of soil microorganisms in two rice cultivars to elevated ground-level ozone

International Nuclear Information System (INIS)

Feng, Youzhi; Yu, Yongjie; Tang, Haoye; Zu, Qianhui; Zhu, Jianguo; Lin, Xiangui

2015-01-01

Although elevated ground-level O 3 has a species–specific impact on plant growth, the differences in soil biota responses to O 3 pollution among rice cultivars are rarely reported. Using O 3 Free-Air Concentration Enrichment, the responses of the rhizospheric bacterial communities in the O 3 -tolerant (YD6) and the O 3 -sensitive (IIY084) rice cultivars to O 3 pollution and their differences were assessed by pyrosequencing at rice tillering and anthesis stages. Elevated ground-level O 3 negatively influenced the bacterial community in cultivar YD6 at both rice growth stages by decreasing the bacterial phylogenetic diversities and response ratios. In contrast, in cultivar IIY084, the bacterial community responded positively at the rice tillering stage under O 3 pollution. However, several keystone bacterial guilds were consistently negatively affected by O 3 pollution in two rice cultivars. These findings indicate that continuously O 3 pollution would negatively influence rice agroecosystem and the crop cultivar is important in determining the soil biota responses to elevated O 3 . - Highlights: • We investigated the soil biota in two rice cultivars in presence of elevated O 3 . • The contrasting responses of soil biota were found between two rice cultivars. • Some keystone bacterial guilds were consistently negatively affected by O 3 pollution. • The crop cultivar is important in determining soil biota responses to elevated O 3 . - The crop cultivar is important in determining the soil biota responses to elevated O 3

Ribonuclease activity of buckwheat plant (Fagopyrum esculentum cultivars with different sensitivities to buckwheat burn virus

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Y. R. Sindarovska

2014-06-01

Full Text Available Ribonucleases (RNases are present in base-level amounts in intact plants, but this level is able to increase greatly under stress conditions. The possible cause for such an increase is protection against plant RNA-virus attack. Buckwheat burn virus (BBV is a highly virulent pathogen that belongs to Rhabdoviridae family. In our study, we have analyzed the correlation between RNase activity and resistance of different buckwheat cultivars to BBV infection. Two cultivars, Kara-Dag and Roksolana, with different sensitivities to BBV have been used. Kara-Dag is a cultivar with medium sensitivity to virus and Roksolana is a tolerant cultivar. It has been shown that the base level of RNase activity in Roksolana cultivar was in most cases higher than the corresponding parameter in Kara-Dag cultivar. Both infected and uninfected plants of Roksolana cultivar demonstrated high RNase activity during two weeks. Whereas infected plants of Kara-Dag cultivar demonstrated unstable levels of RNase activity. Significant decline in RNase activity was detected on the 7th day post infection with subsequent gradual increase in RNase activity. Decline of the RNase activity during the first week could promote the virus replication and therefore more successful infection of upper leaves of plants. Unstable levels of RNase activity in infected buckwheat plants may be explained by insufficiency of virus-resistant mechanisms that determines the medium sensitivity of the cultivar to BBV. Thus, plants of buckwheat cultivar having less sensitivity to virus, displayed in general higher RNase activity.

Diversity of Catechin in Northeast Indian Tea Cultivars

Science.gov (United States)

Sabhapondit, Santanu; Karak, Tanmoy; Bhuyan, Lakshi Prasad; Goswami, Bhabesh Chandra; Hazarika, Mridul

2012-01-01

Tea (Camellia sinensis L.) leaf contains a large amount of catechins (a group of very active flavonoids) which contribute to major quality attributes of black tea. Based on morphological characters tea plants were classified as Assam, China, and Cambod varieties. The present study is an attempt for biochemical fingerprinting of the tea varieties based on catechin composition in green leaf of cultivars grown in Northeast India. Assam variety cultivars contained the highest level of catechins followed by Cambod and China. The average catechin contents were 231 ± 7 mg g−1, 202 ± 5 mg g−1, and 157 ± 4 mg g−1 of dry weight of green leaf for Assam, Cambod, and China cultivars, respectively. Among the individual catechins the variations in epigallocatechin gallate (EGCG) and epigallocatechin (EGC) were the most prominent among the varieties. High EGC content was found to be a characteristic of Assam variety which was further corroborated through multivariate analysis. PMID:22448135

Diversity of catechin in northeast Indian tea cultivars.

Science.gov (United States)

Sabhapondit, Santanu; Karak, Tanmoy; Bhuyan, Lakshi Prasad; Goswami, Bhabesh Chandra; Hazarika, Mridul

2012-01-01

Tea (Camellia sinensis L.) leaf contains a large amount of catechins (a group of very active flavonoids) which contribute to major quality attributes of black tea. Based on morphological characters tea plants were classified as Assam, China, and Cambod varieties. The present study is an attempt for biochemical fingerprinting of the tea varieties based on catechin composition in green leaf of cultivars grown in Northeast India. Assam variety cultivars contained the highest level of catechins followed by Cambod and China. The average catechin contents were 231 ± 7 mg g(-1), 202 ± 5 mg g(-1), and 157 ± 4 mg g(-1) of dry weight of green leaf for Assam, Cambod, and China cultivars, respectively. Among the individual catechins the variations in epigallocatechin gallate (EGCG) and epigallocatechin (EGC) were the most prominent among the varieties. High EGC content was found to be a characteristic of Assam variety which was further corroborated through multivariate analysis.

Kinetic parameters of silicon uptake by rice cultivars

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Priscila Oliveira Martins

2012-02-01

Full Text Available Silicon is considered an important chemical element for rice, because it can improve tolerance to biotic and abiotic stress. However, in many situations no positive effect of silicon was observed, probably due to genetic factors. The objective of this research was to monitor Si uptake kinetics and identify responses of rice cultivars in terms of Si uptake capacity and use. The experiment was carried out in a greenhouse of the São Paulo State University (UNESP, Brazil. The experiment was arranged in a completely randomized, factorial design with three replications. that consisted of two rice cultivars and two Si levels. Kinetic parameters (Vmax, Km, and Cmin, root morphology variables, dry matter yield, Si accumulation and levels in shoots and roots, uptake efficiency, utilization efficiency, and root/shoot ratio were evaluated. Higher Si concentrations in the nutrient solution did not increase rice dry matter. The development of the low-affinity silicon uptake system of the rice cultivar 'Caiapó' was better than of 'Maravilha'.

Perspectives and Future Directions Concerning Fresh, Whole Foods in Montana School Nutrition Programs

Science.gov (United States)

Stephens, Lacy; Byker Shanks, Carmen J.; Roth, Aubree; Bark, Katie

2015-01-01

Purpose/Objectives: To meet new USDA school meal standards, school nutrition programs may need to transition from a "heat and serve" meal preparation approach to increased scratch cooking and use of fresh, whole foods. This study aims to assess the attitudes, motivations, and barriers for Montana school nutrition professionals and key…

Fatty acid composition and natural antioxidant capacity of ten Serbian linseed cultivars

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Čolović Dušica S.

2015-01-01

Full Text Available Literature data about nutritional characteristics of linseed cultivars from some specific geographical area or country is scarce. For that very reason, following paper is presenting fatty acid (FA compositions and antioxidant capacity of lipid-soluble (ACL components of ten native linseed cultivars from Serbia. These characteristics can be interesting, especially due to the increasing trend of linseed usage in human diet. Presented results show that there were statistically significant (p<0.05 differences between linseed kernels in FA composition. Negative correlation was found between FA C18:0 and α-linolenic acid (ALA. The cultivar with the highest ACL value was No. 10 (342.66 μmol trolox/kg d.m., meaning that it had very strong protection against oxidation of polyunsaturated FAs. Nevertheless, correlation between ACL and polyunsaturated FA content in cultivars was not statistically significant (p=0.84. ACL of the samples did not depend on FA composition of linseed, but it might depend on characteristics of a specific cultivar. The aforementioned results show potential usage in storage of linseeds or its products, while FA composition of linseed kernels might be one of criteria for authentication of linseed origin, and can be of great help in future selection of the cultivars, depending on purpose of linseed production.

Biological parameters of onion thrips, Thrips tabaci Lindeman on onion cultivars

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Moraiet Maher Ahmed

2017-06-01

Full Text Available Biological parameters of the onion thrips, Thrips tabaci Lindeman were studied on the following onion (Allium cepa L. cultivars: Nasik Red Plus N-53, Onion Dr-301 (Krishna, Onion White, and Nasik Red, at 25±1°C and 65±5% RH. Significant (p < 0.05 differences were found in the life stages and fertility life tables on different cultivars except in the pupal stages. More information about the biological parameters of T. tabaci on onion cultivars can help in designing Integrated Pest Management programs for onion thrips.

Elemental Composition of Two Rice Cultivars under Potentially Toxic an Aquept and Aquent

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Adesola Olutayo OLALEYE

2009-12-01

Full Text Available Iron toxicity is a major nutrient disorder affecting rice production of wetland rice in the irrigated and rainfed ecosystem in West Africa sub-region. Little attention has been paid to evaluating nutrient contents of rice cultivars grown on such soils and their relationship to the iron toxicity scores, grain yield and dry matter yields. A pot experiment was conducted on two potentially Fe-toxic soils (Aeric Fluvaquent and Aeric Tropaquept. The experiment was a 2 x 2 x 4 factorial experiment with three replicates in arranged in a randomized fashion. The factors were two soil types, two rice cultivars (ITA 212 and tolerant (Suakoko 8 and four Fe 2+ levels (control, 1000, 3000 and 4000 mg L-1. The result showed that for both susceptible cultivar (ITA 212 and the relatively tolerant (Suakoko 8 cultivar, little or no differences were observed in their elemental composition with regards to micro and macro-nutrients. For the susceptible cultivar, results showed that none of the tissue nutrients significantly relates to iron toxicity scores (ITS, grain yield and dry matter yield on both soil types. However, for the tolerant cultivar, ITS was observed to be significantly related to tissue K and P contents on the two soil types respectively. Tissue Ca and Mg were observed to be significantly related to the dry matter yield (DMY on Aeric Tropquept. It could be concluded that for these rice cultivars grown on two potentially Fe-toxic soils, different tissue nutrients may trigger the manifestation of bronzing or yellowing symptoms of rice cultivars.

Green Algae from Coal Bed Methane Ponds as a Source of Fertilizer for Economically Important Plants of Montana

Science.gov (United States)

Ogunsakin, O. R.; Apple, M. E.; Zhou, X.; Peyton, B.

2016-12-01

The Tongue River Basin of northeastern Wyoming and southeastern Montana is the location of natural gas reserves and coal bed methane (CBM) acreage. Although the water that emanates from CBM extraction varies with site, it is generally of higher quality than the waters produced by conventional oil and gas wells, in part because it is low in volatile organic compounds. However, since CBM water contains dissolved solids, including sodium (Na), bicarbonate (HCO3) and chloride (Cl) ions, the water must be treated before it can be discharged into the river or wetlands, or used for stock ponds or irrigation. Several ponds have been constructed to serve as a holding facility for CBM water. Algae from the CBM ponds of the Tongue River Basin have the potential to be utilized as fertilizer on economically important plants of Montana. Two very important crop plants of Montana are wheat, Triticum aestivum, and potatoes, Solanum tuberosum. To explore this potential, isolates of unicellular green algae (Chlorella sp.) from the CBM ponds were cultured in aerated vessels with Bold's Basic Growth Medium and natural and/or supplemental light. Algal biomass was condensed in and collected from a valved funnel, after which cell density was determined via light microscopy and a hemacytometer. Algal/water slurries with known nutrient contents were added to seedlings of hard winter wheat, T.aestivum, grown in a greenhouse for three months before harves. When compared to wheat provided with just water, or with water and a commercially available fertilizer, the wheat fertilized with algae had a higher chlorophyll content, more tillers (side shoots), and a higher ratio of influorescences (groups of flowers) per stem. In a related experiment, Ranger Russet seed potatoes, S. tuberosum were given just water, water and Hoagland's nutrient solution, or water with algae in order to compare aboveground growth and potato production among the treatments. The results of this study suggest that

Biology and reproductive capacity of Spodoptera eridania (Cramer) (Lepidoptera, Noctuidae) in different soybean cultivars

OpenAIRE

Favetti,Bruna Magda; Butnariu,Alessandra Regina; Foerster,Luís Amilton

2015-01-01

This study aimed to evaluate the development, survival and reproductive capacity of Spodoptera eridania in four soybean cultivars. The experiment was conducted in the laboratory, in a climatic chamber at 25 degrees C +/- C, 70 +/- 10% relative humidity and 12 h photophase. The cultivars used were: FMT Tabarana, BRS/MT Pintado, FMT Tucunare and Monsoy 8757, all conventional cultivars with medium cycles. All cultivars tested allowed the development of S. eridania. However, Monsoy 8757 was the c...

Recovery of nitrogen fertilizer by traditional and improved rice cultivars in the Bhutan Highlands

DEFF Research Database (Denmark)

Ghaley, Bhim Bahadur; Jensen, Henning Høgh; Christiansen, Jørgen Lindskrog

2010-01-01

The recovery of soil derived nitrogen (NDFS) and fertilizer N (NDFF) was investigated in highland rice (Oryza sativa L.) fields in Bhutan, characterized by high inputs of farmyard manure (FYM). The effect of 60 kg N ha-1 (60 N) applied in two splits to a traditional and an improved cultivar......% respectively, with no difference between cultivars, but REN decreased with increasing FYM inputs. Fertilizer N recommendations that allow for previous FYM inputs combined with applications timed to coincide with maximum crop demand (45 DAT), and the use of improved cultivars, could enhance N fertilizer......, popular among the farmers, was investigated using the 15N isotope dilution technique. No differences were found between cultivars with respect to the uptake of NDFS and NDFF, but the improved cultivar yielded 27% more (P¿=¿0.05) grain compared with the traditional cultivar. This was largely due to its...

Resistance of canola cultivars affect life table parameters of Nysius cymoides (Spinola (Hemiptera: Lygaeidae

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Mollashahi Mehdi

2016-01-01

Full Text Available A life table can be used as an important and appropriate tool to evaluate the susceptibility or resistance level of different host plant cultivars to insect pests. In the current study, we determined the suitability or inferiority of five different canola cultivars (Hayula420, Hayula401, Hayula50, Hayula60, RGS to Nysius cymoides, under laboratory conditions. Data were analysed based on the age-stage, two-sex life table theory. Nysius cymoides which fed on Hayula420 had the longest nymphal period, while those which fed on Hayula50 had the shortest nymphal period. Developmental times (sum of incubation and nymphal periods was longest for those which fe d on Hayula420 and the shortest for those which fed on Hayula50. The adult pre-oviposition period (APOP, total pre-oviposition period (TPOP, mean fecundity, and adult longevity of adults reared on different canola cultivars showed significant differences. The highest and lowest net reproductive rates (R0 were obtained for those which fed on Hayula420 (11.40 offspring per individual and Hayula401 (5.47 offspring per individual, respectively. The highest value (0.0395 d-1 for the intrinsic rate of increase (r was obtained for those which fed on Hayula 60 cultivar and the lowest value (0.0261 d-1 for those which fed on Hayula401 cultivar. The shortest and longest mean generation times (T were obtained for those which fed on RGS and H401 cultivars, respectively. The lowest and highest values of life expectancy (exj were obtained for those which fed on RGS and Hayula420 cultivars, respectively. The results showed that Hayula401 and RGS were not susceptible cultivars to N. cymoides. These cultivars showed higher resistance to N. cymoides, while Hayula60, Hayula420, and Hayula50 were found to be suitable cultivars but with lower resistance to N. cymoides, respectively.

Adaptabilidade e estabilidade fenotípica de cultivares de alface do grupo crespa em cultivo hidropônico Adaptability and phenotypic stability of crisp lettuce cultivars in hydroponics

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Ronan Gualberto

2009-03-01

Full Text Available Considerando as diferentes estações climáticas em que a alface é cultivada durante o ano, é de se esperar a ocorrência de uma elevada interação genótipo x ambiente. Em função disto, neste trabalho estudou-se o desempenho produtivo, adaptabilidade e estabilidade fenotípica de seis cultivares de alface do grupo crespa (Deisy, Elba, Sabrina, Summer Green, Vera e Verônica, em sistema hidropônico NFT, instalado em casa-de-vegetação, na Universidade de Marília (SP. Foram conduzidos nove ensaios em três épocas (outono: Out n; inverno: Inv n e; primavera: Pri n, em delineamento inteiramente casualizado, com quatro repetições, avaliando-se quatro plantas por parcela. Ocorreram diferenças significativas entre ambientes (épocas de semeadura. Verificou-se que, de maneira geral, os três plantios realizados no outono apresentaram valores médios de produtividade (Out1 = 3,1; Out2 = 5,3 e; Out3 = 4,6 kg m² superiores aos realizados no inverno (Inv1 = 3,6; Inv2 = 3,5 e; Inv = 3,7 kg m² e primavera (Pri1 = 4,0; Pri2 = 3,6 e; Pri3 = 3,2 kg m². Embora a interação cultivares x ambientes também tenha sido significativa, para produtividade, à exceção dos ambientes Inv3 e Pri1, não ocorreram diferenças significativas entre as cultivares dentro de cada época de plantio e, para número de folhas por planta, ocorreram diferenças significativas entre as cultivares somente no ambiente Out3. As cultivares Deyse e Verônica foram as únicas a mostrarem adaptabilidade a todos ambientes estudados para produtividade; todas as cultivares apresentaram instabilidade para essa mesma característica. Para o número de folhas por planta, somente a cultivar Summer Green apresentou comportamento altamente previsível (estável, no entanto, mostrou-se adaptada somente aos ambientes desfavoráveis.Considering the climatic seasons in which lettuce is cultivated, probably a high interaction genotype x environment could be obtained. The yield

Características de plantas de cultivares de arroz irrigado relacionadas à habilidade competitiva com plantas concorrentes Characteristics of flooded rice cultivar plants related to competitive ability against weeds concurrent plants

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N.G. Fleck

2003-04-01

Full Text Available Plantas que apresentam rápido crescimento tendem a ocupar precocemente nichos disponíveis, utilizando o espaço de suas vizinhas. Em geral, esses vegetais adquirem prioridade na utilização dos recursos do meio. O objetivo deste trabalho foi avaliar variações em características de crescimento de cultivares de arroz irrigado. Para isso, conduziu-se um experimento em campo na estação de crescimento de 2000/2001, em Cachoeirinha-RS. Investigou-se o comportamento de oito cultivares de arroz, cultivados em presença e ausência de plantas de arroz do cultivar EEA 406, simulando infestação de arroz-vermelho, estabelecida com densidade média de 30 plantas m-2. Entre 15 e 60 dias após a semeadura (DAS, avaliou-se a evolução de área foliar, estatura e massa aérea das plantas de arroz. Com esses dados, calcularam-se razão de área foliar (RAF, taxa de crescimento relativo (TCR e taxa de assimilação líquida (TAL dos cultivares. Os cultivares Ligeirinho e XL 6 apresentaram elevadas velocidades de ganho em área foliar, estatura e massa aérea; com isso, alcançaram as maiores coberturas do solo, juntamente com o cultivar IR 841. Por outro lado, os cultivares Bluebelle e Formosa mostraram lento crescimento absoluto no período avaliado, mas, em geral, apresentaram os maiores valores para TCR e TAL.Fast-growing plants tend to occupy available niches utilizing these spaces ahead of their neighbors. In general, these plants have priority over others in the use of environmental resources. The objective of this research was to evaluate variations in growth characteristics of flooded rice cultivars. A field experiment was carried out during the 2000/01 summer season, in Cachoeirinha, RS, Brazil. The behavior of eight rice cultivars, grown in the absence or presence of the EEA 406 rice genotype was investigated, simulating a red rice infestation, established at an average density of 30 plants m-2. From 15 to 60 days after seeding (DAS

Comparison and flowering valuation of New Guinea Impatiens cultivars from Sonic and Super Sonic groups

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Ludmiła Startek

2012-12-01

Full Text Available In the years 2002-2003 the flowering of four New Guinea Impatiens cultivars from Sonic and Super Sonic groups were compared. They were the following cultivars: 'Sonic Pink', 'Sonic Sweet Cherry', 'Super Sonic Cherry Cream' and 'Super Sonic Hot Pink'. The experiments were carried out from the middle of April till the middle of October. Neutralised sphagnum peat with slow release fertiliser Osmocote Plus 5/6 was used as medium. It was found that the cultivar 'Sonic Pink' began blooming 1-4 weeks earlier than the other cultivars. The cultivars 'Sonic Sweet Cherry' and 'Super Sonic Cherry Cream' had significantly more abundant flowering (105.3-113.3 flowers per plant than the cultivars 'Sonic Pink' and 'Super Sonic Hot Pink' (72.0-92.8 flowers per plant. All the cultivars had big flowers (6.3-7.8 cm in diameter. The most similar flowers were found in 'Sonic Sweet Cherry' and the least similar in 'Super Sonic Hot Pink'.

Composição de aminoácidos de cultivares de feijão e aplicações para o melhoramento genético Amino acid composition in common bean cultivars and applications for genetic breeding

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Nerinéia Dalfollo Ribeiro

2007-10-01

Full Text Available O objetivo deste trabalho foi determinar a composição de aminoácidos em grãos de cultivares de feijão e a presença de interação cultivares x locais, nos teores de aminoácidos, e identificar cultivares para uso direto na alimentação e derivações em programas de melhoramento. Os aminoácidos foram determinados por cromatografia líquida de alta performance (HPLC, em grãos de 19 cultivares de feijão cultivadas em dois locais. Os dados médios obtidos para cada cultivar, em duplicata, foram comparados entre si com a utilização do teste t, a 5% de probabilidade para cada local. Os grãos das cultivares analisadas apresentaram teores de aminoácidos essenciais e não-essenciais, adequados às necessidades diárias de um indivíduo adulto, o que indica alta qualidade da proteína do feijão. As cultivares de feijão apresentam, em ordem decrescente, os aminoácidos essenciais: leucina, lisina, fenilalanina, valina, isoleucina, treonina, histidina e metionina; e os aminoácidos não-essenciais: ácido glutâmico, ácido aspártico, arginina, serina, alanina, glicina, tirosina, prolina e cisteína. Os teores de leucina, isoleucina, histidina, valina, treonina, glicina e alanina foram afetados pela interação cultivares x locais. A cultivar Iraí apresenta composição de aminoácidos adequada e é indicada para uso em dietas e derivações em programas de melhoramento.The objective of this work was to determine the amino acid composition of seeds of common bean cultivars and to examine the presence of cultivar x location interactions in amino acid contents, and to identify common bean cultivars for direct consumption or use in breeding programs. The amino acid contents were determinated through high performance liquid chromatography (HPLC, in 19 common bean cultivars obtained in two localities. The mean data sets of each cultivar, in duplication, were compared by the F test at 5% probability for each location. Grains of the common bean

Nitrogen oxides produced during CO/sub 2/ enrichment. II. Effects on different tomato and lettuce cultivars

Energy Technology Data Exchange (ETDEWEB)

Mortensen, L.M.

1985-01-01

Eight cultivars of Lycopersicon esculentum (tomato) and six cultivars of Lactuca sativa (lettuce) were subjected to CO/sub 2/-enriched air (1000 ..mu..l l/sup -1/) containing 0.7 or 0.9 ..mu..l l/sup -1/ nitrogen oxides (NO/sub x/). CO/sub 2/ enrichment without NO/sub x/ significantly increased the dry weight of all tomato (35-81%) and lettuce cultivars (25-101%). In six of the eight tomato cultivars the dry weight was reduced by the addition of NO/sub x/. The mean relative growth rate (RGR) decreased by 4-19% depending on the cultivar. This meant that the benefit of CO/sub 2/ enrichment was almost completely eliminated in most of the cultivars. Marginal leaf necrosis appeared in some of the cultivars, while in others no visible injury developed. None of the lettuce cultivars was significantly affected by the addition of NO/sub x/. 16 references, 4 tables.

Cell wall alterations in the leaves of fusariosis-resistant and susceptible pineapple cultivars.

Science.gov (United States)

de Farias Viégas Aquije, Glória Maria; Zorzal, Poliana Belisário; Buss, David Shaun; Ventura, José Aires; Fernandes, Patricia Machado Bueno; Fernandes, Antonio Alberto Ribeiro

2010-10-01

Fusariosis, caused by the fungus Fusarium subglutinans f. sp. ananas (Syn. F. guttiforme), is one of the main phytosanitary threats to pineapple (Ananas comosus var. comosus). Identification of plant cell responses to pathogens is important in understanding the plant-pathogen relationship and establishing strategies to improve and select resistant cultivars. Studies of the structural properties and phenolic content of cell walls in resistant (Vitoria) and susceptible (Perola) pineapple cultivars, related to resistance to the fungus, were performed. The non-chlorophyll base of physiologically mature leaves was inoculated with a conidia suspension. Analyses were performed post-inoculation by light, atomic force, scanning and transmission electron microscopy, and measurement of cell wall-bound phenolic compounds. Non-inoculated leaves were used as controls to define the constitutive tissue characteristics. Analyses indicated that morphological differences, such as cell wall thickness, cicatrization process and lignification, were related to resistance to the pathogen. Atomic force microscopy indicated a considerable difference in the mechanical properties of the resistant and susceptible cultivars, with more structural integrity, associated with higher levels of cell wall-bound phenolics, found in the resistant cultivar. p-Coumaric and ferulic acids were shown to be the major phenolics bound to the cell walls and were found in higher amounts in the resistant cultivar. Leaves of the resistant cultivar had reduced fungal penetration and a faster and more effective cicatrization response compared to the susceptible cultivar.

Leaf gas exchange and yield of three upland rice cultivars

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Rita de Cássia Félix Alvarez

2015-03-01

Full Text Available Studies of physiological parameters associated with crop performance and growth in different groups of upland rice (Oryza sativa L. may support plant breeding programs. We evaluated the role of gas exchange rates and dry matter accumulation (DMA as traits responsible for yields in a traditional (cv. ‘Caiapó’, intermediate (cv. ‘Primavera’ and modern (cv. ‘Maravilha’ upland rice cultivars. Leaf gas exchange rates, DMA, leaf area index (LAI, harvest indexes (HI and yield components were measured on these genotypes in the field, under sprinkler irrigation. Panicles per m2 and DMA at flowering (FL and heading, as well as CO2 assimilation rates (A were similar across these cultivars. The highest yield was found in ‘Primavera’, which may be explained by (i a two-fold higher HI compared to the other cultivars, (ii greater rates of DMA during spikelet formation and grain-filling, as well as (iii a slow natural decrease of A in this cultivar, at the end of the season (between FL and maturation.

Phytochemical profiles and antioxidant activity of 27 cultivars of tea.

Science.gov (United States)

Zeng, Liang; Luo, Liyong; Li, Hongjun; Liu, Ruihai

2017-08-01

Tea, rich in phytochemicals, has been suggested to have human health benefits. The phenolic profiles, antioxidant and antiproliferative activities of 27 tea cultivars were determined. Wide ranges of variation were found in analyzed cultivars for the contents of water-soluble phenolics (121.6-223.7 mg/g dry weight (DW)), total catechins (TC) (90.5-177.2 mg/g DW), antioxidant activities (PSC values 627.3-2332.3 μmol of vitamin C equiv/g DW, ORAC values (1865.1-3489.3 μmol of vitamin C equiv/g DW), CAA values (37.7-134.3 μmol of QE/g DW without PBS wash and 25.3-75.4 μmol of QE/g DW with PBS wash) and antiproliferative activity (53.0-90.8% at the concentration of 400 μg/mL extracts). The PSC, ORAC and CAA values were significantly correlated with phenolics, epicatechin gallate (ECG), CC and TC. Knowledge of specific differences among tea cultivars is important for breeding tea cultivars and gives sights to its potential application to promote health.

Obtention of microtubers and minitubers as pre basic seed in tree Peruvian potato cultivars

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María de Lourdes Tapia y Figueroa

2017-11-01

Full Text Available In potato (Solanum tuberosum L. seed certification programs, the use of in vitro plants, microtubers and minitubers as pre-basic seed are of great importance, especially in countries such as Peru, where there is a need to eradicate the informal production of the seed to promote new plantations. The present work had as objective to obtain of microtubers and minitubers as pre-basic seed in three Peruvian potato cultivars. When comparing the effect of both factors (method and cultivar in the number of seeds per plant it was possible to state that with the exception of the cultivar 'Capiro', no differences were found between both methods of seed production for the rest of the cultivars. This result is very important since it shows that it is possible to use both methods of pre-basic seed production for cultivars 'Canchan' and 'Papa3'. In the cultivar 'Capiro' a greater number of minitubers was achieved per plant, but its low fresh mass, which could prevent its use as a basic seed. Other studies are required to adjust the culture conditions to achieve better results in this cultivar.   Keywords: certified seed, genotype, in vitro techniques

Yield in cultivars of the West Indian gherkin for different doses of biofertiliser = Produtividade de cultivares de maxixeiro em função de doses de biofertilizante

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Lucas Pereira Gomes

2015-10-01

Full Text Available The fruit of the West Indian gherkin is greatly appreciated in Brazilian cuisine, especially in the north and northeast of Brazil. However, it is still considered a secondary crop, and is cultivated using non-technical management. As it is a crop produced mainly by small farmers, any research should be directed towards its cultivation using inputs produced on the farm itself, such as bio-fertilisers. The aim of this study was to evaluate the effect on the yield of two West Indian gherkin cultivars, of different doses of bio-fertiliser consisting of cattle manure and commercial products containing bacteria and enzymes that degrade organic molecules. A completely randomised design was used in a 2 x 4 factorial scheme with four replications. The factors included two cultivars (Do Norte and Liso Gibão and four doses of bio-fertiliser (0, 8, 16 and 24 m3 ha-1 applied through fertigation. The experiment lasted for 100 days, with six collections being made, for which the following variables were evaluated: number of fruits, fruit weight, production and yield. All the variables were affected by the interaction between the factors under study. The cultivars did not differ as to yield, however the De North cultivar gave the highest number of fruits, while the Liso Gibão cultivar produced fruit of a greater weight. From the results obtained, a dose of 14 m3 ha-1 is recommended for the Liso Gibão cultivar. For the De Norte cultivar, further studies with higher doses of bio-fertiliser are recommended. = Os frutos de maxixeiro são de grande apreciação na culinária brasileira, principalmente nas regiões Norte e Nordeste do Brasil. No entanto, é considerada uma cultura secundária e seu cultivo é realizado sem adoção de manejo tecnificado. Devido o seu cultivo ser realizado, principalmente, por pequenos produtores, as pesquisas empregando insumos produzidos na própria propriedade, como o biofertilizante, na adubação do maxixe são relevantes

Phenolic content and anti-hyperglycemic activity of pecan cultivars from Egypt.

Science.gov (United States)

El Hawary, Seham S; Saad, Soumaya; El Halawany, Ali Mahmoud; Ali, Zeinab Y; El Bishbishy, Mahitab

2016-01-01

Pecans are commonly used nuts with important health benefits such as anti-hyperglycemic and anti-hyperlipidemic effects. A comparative investigation of the antihyperglycemic and total phenolic content of the leaves and shells of four pecan cultivars growing in Egypt was carried out. The selected cultivars (cv.) were Carya illinoinensis Wangneh. K. Koch. cv. Wichita, cv. WesternSchely, cv. Cherokee, and cv. Sioux family Juglandaceae. Total phenolic and flavonoid contents of the leaves and shells of pecan cultivars were carried out using Folin-Ciocalteu's and aluminum chloride assays, respectively. Moreover, HPLC profiling of phenolic and flavonoid contents was carried out using RP-HPLC-UV. In addition, in vivo anti-hyperglycemic activity of the ethanolic extracts (125 mg/kg bw, p.o.) of C. illinoinensis cultivars was carried out using streptozotocin (STZ)-induced diabetes in Sprague-Dawley rats for 4 weeks. Phenolic contents were higher in shells than leaves in all studied cultivars, while flavonoids were higher in leaves. Leaves and shells of cv. Sioux showed the highest phenolics (251.7 µg gallic acid equivalent (GAE)/g), and flavonoid contents (103.27 µg rutin equivalent (RE)/g and 210.67 µg quercetin equivalent (QE)/g), respectively. The HPLC profiling of C. illinoinensis cultivars resulted in the identification of eight flavonoids (five of these compounds are identified for the first time from pecan), and 15 phenolic acids (six are identified for the first time from pecan). Leaves of cv. Sioux revealed the most potent decrease in blood glucose and glycated hemoglobin (HbA1c%) (194.9 mg/dl and 6.52%, respectively), among other tested cultivars. Moreover, leaves of cv. Sioux significantly elevated serum total antioxidant capacity (TAC) and reduced glutathione (GSH) (0.33 mMol/l and 30.68 mg/dl, respectively), and significantly suppressed the markers of both lipid peroxidation (malondialdehyde, MDA) and protein oxidation (protein carbonyl, PC

BRS Libra: cultivar de pessegueiro lançada pela Embrapa, em 2009 ‘BRS LIBRA’: peach cultivar released by Embrapa, in 2009

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Maria do Carmo Bassols Raseira

2010-12-01

Full Text Available O programa de melhoramento genético da Embrapa Clima Temperado enfatiza a criação de cultivares de maturação precoce, produtoras de frutas de polpa não fundente. Isto é devido ao interesse dos produtores e da indústria conserveira, uma vez que tais cultivares têm mais baixo custo de produção e muito boa oportunidade de mercado. A cv. BRS Libra atende a esta demanda e já foi testada por produtores da área próxima a Pelotas, por vários ciclos, contando com a cooperação do serviço de Extensão do Rio Grande do Sul. Mais recentemente, os testes foram estendidos a outras regiões com a parceria de instituições de pesquisa públicas e privadas. A cv. BRS Libra tem baixa necessidade em frio, com floração precoce e maturação iniciando geralmente, no início de outubro e ocasionalmente, ao final de setembro, no município de Pelotas. A sua exigência em frio não foi determinada precisamente, mas por comparação com outras cultivares estima-se que seja entre 100 e 200 horas.The Embrapa peach breeding program emphasizes the development of early ripening cultivars which produce non-melting flesh peaches. This is due to the interest of growers and canning industry on these cultivars because of the lower production costs plus the market oportunities. The BRS Libra cv. meet this objective and has been tested by growers around Pelotas'area, for several years with the collaboration of the extension service of Rio Grande do Sul State, and more recently in other areas, thanks to the cooperation of other public and private research institutions. It has low chilling requirement, early blooming and the harvest generally starts by beginning of October and exceptionally end of September, in Pelotas, RS. The chilling requirement was mot precisely determined but by comparison with other cultivars, it is estimated between 100 and 200 hours.

Produtividade de cultivares de cafeeiros (Coffea arabica L. submetidas a diferentes épocas de parcelamento da adubação Yield of coffee cultivars (Coffea arabica L. under different split-fertilization times

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Gabriel Ferreira Bartholo

2003-08-01

Full Text Available Os experimentos foram instalados na Fazenda Experimental da Epamig em São Sebastião do Paraíso, com o objetivo de estudar o comportamento das cultivares Mundo Novo-IAC 379/19; Icatu Precoce-IAC 3282; Icatu Amarelo-IAC 2944 e Rubi-MG 1192, em relação a épocas de parcelamento de adubação. As respostas das cultivares foram medidas sobre a produção em função das épocas de parcelamento da adubação, demonstrando que a característica estudada foi influenciada pelas combinações das épocas em que foram submetidas. A cultivar Mundo Novo-IAC 379/19 tolerou intervalos maiores entre as adubações no período de outubro a março, e a cultivar Icatu Amarelo-IAC 2944 respondeu de modo significativo a quatro parcelamentos consecutivos com intervalo de 30-40 dias entre as aplicações. Para a cultivar Icatu Precoce-IAC 3282, existem opções de estabelecimento de épocas adequadas, dependendo do início das chuvas. A cultivar Rubi-MG 1192 não respondeu às épocas de parcelamento da adubação.ABSTRACT - The work was conducted at EPAMIG's Experimental Station in São Sebastião do Paraíso, MG, to study the performance of Mundo Novo-IAC 379/19; Icatu Precoce-IAC 3282; Icatu Amarelo-IAC 2944 and Rubi- MG 1192 coffee cultivars, in relation to time and parceling out of fertilization. Cultivar responses were evaluated by yield measurements, with the results showing that this parameter was affected by time in which fertilization was made. Mundo Novo-IAC 379/19 cultivar tolerated broader intervals between the fertilizations from October to March. Icatu Amarelo-IAC 2944 response was significant to four consecutive parceling, with intervals from 30 to 40 days between applications. Icatu Precoce-IAC 3282 cultivar presented other more appropriate time options depending on the start of rainy season. Rubi-MG 1192 cultivar was not responsive to split-fertilization.

Fenologia, produção e teor de antocianinas de cultivares de morangueiro em ambiente protegido Phenology, production and content of strawberry crops cultivars anthocyanins produced under protected environment

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Eunice Oliveira Calvete

2008-06-01

Full Text Available A diversidade de cultivares de morangueiro exige estudos quanto à adaptação no local de cultivo. Por sua vez, a maior exigência do consumidor por produtos mais saudáveis requer informações a respeito das características nutracêuticas dos produtos. Este trabalho objetivou determinar as cultivares com maior adaptação ao cultivo protegido na região do Planalto Médio do Rio Grande do Sul, os teores de antocianinas, bem como a época de plantio que proporcionam maior produtividade. O experimento foi conduzido em um ambiente protegido de 280 m², coberto com filme de polietileno de baixa densidade (PEBD, de 150 µm, com aditivo anti UV. O delineamento foi em blocos ao acaso, com três repetições, e os tratamentos em parcelas subdivididas, sendo as épocas de plantio das mudas (28 de abril e 13 de maio as parcelas principais, e as cultivares (Dover, Tudla, Comander, Oso Grande, Campinas, Chandler, Serrano e Camarosa, as subparcelas. Foram avaliadas características fenológicas e componentes do rendimento. Os teores de antocianinas foram determinados por espectrofotometria, com comprimento de onda de 528 nm. Não houve interação entre cultivares e épocas de plantio sobre as características avaliadas. A maior produtividade foi do morangueiro cultivado precocemente, em abril. As cultivares Camarosa, Dover, Oso Grande e Tudla são as mais indicadas, pelo maior rendimento e escalonamento da produção, e a cultivar Serrano, pelo maior teor de antocianinas.The diversification of strawberry cultivars demands studies about their adaptation in the cultivation place and, the increase of the consumer's requirement for healthier products require studies about the products nutraceutica characteristics. In such a way, this work aimed to determine the cultivars with higher adaptation under protected environment in Rio Grande do Sul, Planalto Médio region, the contents of anthocyanins, as well as the period that provides more productivity. The

Interação genótipo x ambiente em cultivares de alface na região de Jaboticabal Interaction genotype x environment of lettuce cultivars in Jaboticabal, Brazil

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Eduardo B. de Figueiredo

2004-03-01

Full Text Available Estudou-se a interação genótipo x ambiente de doze cultivares de alface, sendo quatro do grupo lisa (Babá de Verão, Karla, Nacional e Elisa, quatro do grupo crespa (Simpson, Hortência, Verônica e Grand Rapids e quatro do grupo americana (Laidy, Tainá, Lucy Brown e Raider. Os tratamentos foram constituídos pelo cultivo da alface em dez ambientes (casa de vegetação, túnel baixo de cultivo, túnel baixo com sombrite, agrotêxtil e campo, na presença e ausência de mulching. Foram utilizados dois períodos de cultivo, agosto a novembro de 2001 e março a junho de 2002 em Jaboticabal. Cada experimento (ambiente de cultivo foi conduzido utilizando-se o delineamento de blocos casualizados, com doze cultivares e três repetições. A análise de variância conjunta demonstrou valores de F significativos (pWe evaluated the interaction genotype x environment of twelve genotypes of lettuce (Babá de Verão, Karla, Nacional, Elisa, Simpson, Hortência, Verônica, Grand Rapids, Laidy, Tainá, Lucy Brown and Raider, cultivated under greenhouse, low tunnel, low tunnel covered with black plastic screen, floating row cover (light-weight woven and open field. All these treatments were conducted with and without mulching with ten treatments in total. The experiments were conducted in two different periods (August to November, 2001 and March to June, 2002. Each experiment (growth environment was conducted using randomized blocks and three replicates. The measured variables were dry matter, volume and number of leaves. The value of F was significant (p<0,01 for the interaction genotype x environment. For the planting period from August to November/2001, the best results were obtained with the butterhead cultivars (Babá de Verão, Karla, Nacional, Elisa, cultivated under greenhouse with mulching, low tunnel without mulching and field without mulching. All cultivars had the worst performance when cultivated under tunnel with black plastic screen with or

Preferência da broca-das-cucurbitáceas [Diaphania nitidalis Cramer, 1782 (Lepidoptera: Pyralidae] por cultivares de pepineiro em ambiente protegido Pickleworm [Diaphania nitidalis Cramer, 1782 (Lepidoptera: Pyralidae]preference for cucumber cultivars in greenhouse

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Giovani Greigh de Brito

2004-04-01

Full Text Available A broca-das-cucurbitáceas (Diaphania nitidalis é uma praga de grande importância em diversas culturas, principalmente do pepineiro. Esta espécie pode apresentar preferência em relação a determinadas cultivares quanto à sua alimentação e até mesmo oviposição. Nesse sentido, o presente estudo objetivou avaliar a ocorrência desta praga em frutos de seis cultivares de pepineiro, em ambiente protegido. As cultivares Patton, Victoria, Premier, Vlaspik e Napoleon apresentaram, respectivamente, 50%, 43,75%, 37,50%, 34,37% e 25,87% dos frutos brocados. A cultivar Marinda apresentou resultado promissor, com apenas 10,37% dos frutos com presença de larvas de D. nitidalis.The pickleworm (Diaphania nitidalis is a major pest on different crops, particulary on cucumber. This species has shown a preference for determined cultivars to its feeding and oviposition habits. Thus, the aim of this study was to evaluate the occurence of D. nitidalis larvae in fruits of six cucumber cultivars in greenhouse. The cultivars Patton, Victoria, Premier, Vlaspik and Napoleon showed, respectively, 50%, 43.75%, 37.50%, 34.37% and 25.87% of bored fruits. Promising results were obtained with the cultivar Marinda, which showed only 10.37% of bored fruits.

Germination of several groundnut cultivars in relation to incidence of ...

African Journals Online (AJOL)

This experiment is concerned with the germination of nine cultivars of groundnut grown in Nigeria in relation to incidence of fungi. The cultivars were NHK 5V8, NUTII 288, Samnut 10, 11, 21, 22, 23, 24 and MK 373. Germination potential was assessed after 10 days of planting in petri-dishes. Parameters such as seedling ...

Evaluation of Quantitative and Qualitative Traits of Some Apricot Cultivars Grown in Zanjan Region

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sanaz molaie

2017-02-01

Full Text Available Introduction Apricot (Prunus armeniaca L. has special position in Iran fruit culture industry. In terms of cultivation and producing, Iran is one of the major countries in the world but in terms of export Iran is ranked 23. For this reason, research on necessities of fruit culture industries and access to new cultivars by breeding project is required. Obviously, paying attention to quality and quantity of products and using of local germplasm that known completely, played a significant role in this project. Apricot with genomic feature 2n=16, has extensive diversity due to sexual propagation and cultivation in different areas. Central Asia and Caucasian groups of apricot that involving Iranian and Turkish cultivars, have greatest phenotypic variations, while European group including cultivars that cultivated in North America, Australia and South Africa have the lowest diversity. Climate adaptation, increasing of fruits quality, self-compatibility and resistance to diseases are the most important goals of apricot breeding. Of course, the quality of fruits depends on sugar and acid balance and special aroma. One of the important targets of apricot breeding is introduce and develop of cultivars that can be cultivated in extensive areas. Target of recent study is primary evaluating of morphological and pomological traits of some cultivar and genotypes of apricot grown in Zanjan province. In order to introduce the cultivars that produces fruit with high quality and complete scientific researches to selection of ideal cultivars in this region for future. Method and material: This research carried out on four cultivars (Badami, Daneshkadeh, Shekarpareh, Shahroodi and two genotypes (C and D and was conducted in a completely randomize design with three replications. Evaluating of tree, branch, leaf, flower and some fruit traits performed based on existing descriptor. For determining some important pomological traits, fruits harvested in commercial time

Cultivar variation and selection potential relevant to the production of cellulosic ethanol from wheat straw

DEFF Research Database (Denmark)

Lindedam, Jane; Andersen, Sven Bode; DeMartini, J.

2012-01-01

Optimizing cellulosic ethanol yield depends strongly on understanding the biological variation of feedstocks. Our objective was to study variation in capacity for producing fermentable sugars from straw of winter wheat cultivars with a high-throughput pretreatment and hydrolysis well......-plate technique. This technique enabled us to estimate cultivar-related and environmental correlations between sugar yield, chemical composition, agronomic qualities, and distribution of botanical plant parts of wheat straw cultivars. Straws from 20 cultivars were collected in duplicates on two sites in Denmark....... Following hydrothermal pretreatment (180 °C for 17.6 min) and co-hydrolysis, sugar release and sugar conversion were measured. Up to 26% difference in sugar release between cultivars was observed. Sugar release showed negative cultivar correlation with lignin and ash content, whereas sugar release showed...

Adaptability and stability of soybean cultivars for grain yield and seed quality.

Science.gov (United States)

Silva, K B; Bruzi, A T; Zambiazzi, E V; Soares, I O; Pereira, J L A R; Carvalho, M L M

2017-05-10

This study aimed at verifying the adaptability and stability of soybean cultivars, considering the grain yield and quality of seeds, adopting univariate and multivariate approaches. The experiments were conducted in two crops, three environments, in 2013/2014 and 2014/2015 crop seasons, in the county of Inconfidentes, Lavras, and Patos de Minas, in the Minas Gerais State, Brazil. We evaluated 17 commercial soybean cultivars. For adaptability and stability evaluations, the Graphic and GGE biplot methods were employed. Previously, a selection index was estimated based on the sum of the standardized variables (Z index). The data relative to grain yield, mass of one thousand grain, uniformity test (sieve retention), and germination test were standardized (Z ij ) per cultivar. With the sum of Z ij , we obtained the selection index for the four traits evaluated together. In the Graphic method evaluation, cultivars NA 7200 RR and CD 2737 RR presented the highest values for selection index Z. By the GGE biplot method, we verified that cultivar NA 7200 RR presented greater stability in both univariate evaluations, for grain yield, and for selection index Z.

Accumulation of Carotenoids and Metabolic Profiling in Different Cultivars of Tagetes Flowers

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Yun Ji Park

2017-02-01

Full Text Available Species of Tagetes, which belong to the family Asteraceae show different characteristics including, bloom size, shape, and color; plant size; and leaf shape. In this study, we determined the differences in primary metabolites and carotenoid yields among six cultivars from two Tagetes species, T. erecta and T. patula. In total, we detected seven carotenoids in the examined cultivars: violaxanthin, lutein, zeaxanthin, α-carotene, β-carotene, 9-cis-β-carotene, and 13-cis-β-carotene. In all the cultivars, lutein was the most abundant carotenoid. Furthermore, the contents of each carotenoid in flowers varied depending on the cultivar. Principal component analysis (PCA facilitated metabolic discrimination between Tagetes cultivars, with the exception of Inca Yellow and Discovery Orange. Moreover, PCA and orthogonal projection to latent structure-discriminant analysis (OPLS-DA results provided a clear discrimination between T. erecta and T. patula. Primary metabolites, including xylose, citric acid, valine, glycine, and galactose were the main components facilitating separation of the species. Positive relationships were apparent between carbon-rich metabolites, including those of the TCA cycle and sugar metabolism, and carotenoids.

75 FR 10456 - Kootenai National Forest, Fortine Ranger District, Montana; Galton Environmental Impact Statement

Science.gov (United States)

2010-03-08

...) Planning Areas (Wigwam, Grave, and Murphy) and the Fortine Ranger District portions of two (2) Planning... lawsuit settlement agreement with the Montana Wilderness Association commits the Forest Service to develop... travel planning for the Ten Lakes WSA. This project will also reduce hazardous fuels within and outside...

Evaluación de inductores de la floración en tres cultivares de mango (Mangifera indica L. Evaluation offlowering inductive substances in three mango (Mangifera indica L. cultivars

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Miranda Diego

2001-12-01

Full Text Available Con el fin de determinar la importancia de dos sustancias promotoras de la inducción floral en el cultivo del mango, durante el semestre 1994B y 1995A, se estableció un experimento en el Centro de Investigaciones Corpoica Nataima, ubicado en el departamento del Tolima a 420 msnm, con precipitación promedia de 1300 mm y temperatura de 28 oc. Las sustancias evaluadas fueron Paclobutrazol (PBZ, del
25% de i.a. en dosis de 32 mL por litro de agua y el Nitrato de Potasio (KNO en concentración del 2%, aplicados solos o en mezcla, con 2 formas de aplicación, foliar y en "Drench" al suelo. Los cultivares evaluados fueron Vandyke, Haden y Kent de cinco años de edad. Se utilizó un diseño de parcelas subdivididas. La respuesta de los cultivares al efecto del tratamiento con los inductores, se manifestó en la reducción del crecimiento vegetativo que fue visible hasta la etapa de diferenciación floral, siendo el cultivar Kent el de mejor respuesta, 5,1 cm de longitud, el Haden 11,0cm y finalmente el Vandyke con 15,0 cm. Existieron diferencias significativas entre los cultivares en el número de hojas producidas
por cada flujo, siendo mayor el cultivar Vandyke (18 hojas,
Haden (13 y Kent con 7 hojas en promedio. El mayor número de panículas lo produjo Vandyke 199 racimos florales, comparado con Kent 24 y con Haden 33. Existió una interacción significativa entre los cultivares y la forma de aplicación del inductor en lo que respecto al número de racimos florales producidos, lográndose el mayor número 31% más racimos florales cuando la aplicación se hizo
en forma foliar comparado con la aplicación en solución al suelo. En el número de frutos producidos por cada cultivar, el mayor número de frutos lo produjo el cultivar Vandyke (192 frutos, Haden (29 frutos y (16 frutos para Kent. En el número final de frutos retenidos, también presentó diferencias significativas entre cultivares, encontrándose que en promedio

Srain Yield Stability of some Bread Wheat Cultivars Introduced in Moderate and Cold Area of Iran

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Alireza Tarinejad

2017-07-01

Full Text Available Due to genotype×environmental interaction, seed yields of genotypes are usually evaluated in broad range of environmental conditions to obtain efficient information concering cultivar selection and introduction. For this purpose, an experiment was conducted based on RCBD with three replications, using 20 bread wheat cultivars to study seed yield stability of cultivars introduced during the past several years to cold, and moderate areas of Iran. This experiment was carried out at the Agriculture Research Station of Islamic Azad University, Tabriz branch during 2009-2012, for 4 years. Because of significant genotype×environmental interaction, stability analysis was performed by all possible methods to obtain stable and high potential cultivars. The result of stability analysis showed non parametric, AMMI, GGE biplot and simultaneous selection stability methods introduce lower, high, and higher yielding cultivars to be stable. On basis of all stability methods, Bahar (spring type introduced in 2008, Mahdavi (facultative type released in 1995, and Azadi cultivar (winter type introduced in 1989 respectively with 7.27, 7.13 and 6.88 (t/ha grain yield were stable and were highly potential cultivars among other cultivars. These cultivars could be introduced to researchers as stable cultivars to be used as parental ones in breeding programs for production of highly stable and seed yielding lines.

Using structured decision making to manage disease risk for Montana wildlife

Science.gov (United States)

Mitchell, Michael S.; Gude, Justin A.; Anderson, Neil J.; Ramsey, Jennifer M.; Thompson, Michael J.; Sullivan, Mark G.; Edwards, Victoria L.; Gower, Claire N.; Cochrane, Jean Fitts; Irwin, Elise R.; Walshe, Terry

2013-01-01

We used structured decision-making to develop a 2-part framework to assist managers in the proactive management of disease outbreaks in Montana, USA. The first part of the framework is a model to estimate the probability of disease outbreak given field observations available to managers. The second part of the framework is decision analysis that evaluates likely outcomes of management alternatives based on the estimated probability of disease outbreak, and applies managers' values for different objectives to indicate a preferred management strategy. We used pneumonia in bighorn sheep (Ovis canadensis) as a case study for our approach, applying it to 2 populations in Montana that differed in their likelihood of a pneumonia outbreak. The framework provided credible predictions of both probability of disease outbreaks, as well as biological and monetary consequences of management actions. The structured decision-making approach to this problem was valuable for defining the challenges of disease management in a decentralized agency where decisions are generally made at the local level in cooperation with stakeholders. Our approach provides local managers with the ability to tailor management planning for disease outbreaks to local conditions. Further work is needed to refine our disease risk models and decision analysis, including robust prediction of disease outbreaks and improved assessment of management alternatives.

IPR 118 - Bread wheat cultivar

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Carlos Roberto Riede

2007-01-01

Full Text Available Wheat cultivar IPR 118 developed by IAPAR has a good yield potential and is widely adapted. It is earlymaturing and moderately tolerant to shattering and soil aluminum, moderately resistant to leaf rust and presents high glutenstrength for bread-making. The overall yield exceeded controls by 13%.

Amount of Macronutrients and Micronutrients in Petiole of Some Iranian and Imported Grape Cultivars

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H. Doulati Baneh

2016-02-01

Full Text Available Introduction: Grapevine (Vitis vinifera L. is one of the oldest and most important perennial crops in the world. Several native grapevine genotypes, highly appreciated for their organoleptic characteristics and commercial potential are still cultivated in Iran. Developing viticulture requires the conservation of autochthonous varieties that have evolved several mechanisms enabling them to cope with the local bioclimatic and edaphic conditions. Nutrition is a key component of vineyard management that has the potential to influence various factors in vine production that includes fruit set and quality. To develop suitable nutrient plant growers need to have an understanding of the factors such as cultivars, rootstocks, soil type, irrigation type and nutrients that they are applying in the vineyard. The uptake of nutrients from the soil depends on different factors namely; their soluble content in it, soil pH, plant growth stage, plant genetics and types of soil and fertilizers. Plant species have a variety of capacities in removing and accumulating elements. Vigorous genotypes are more capable of finding the necessary nutrients from the surrounding soil environment. This indicates that it does not require as much nutrient as poor vigor genotypes. So, for sustainable viticulture, it is important to know the interactive influences of cultivars, soil characters, climatic conditions, and irrigation type on vine productivity. Materials and Methods: To evaluate and compare the amount of macronutrient elements (N, P, K, Mg and Ca and micronutrient elements (B, Zn and Mn in petiole of some Iranian grapevine cultivars including Bidanesefid Qazvin- Peikany Kashmar- Khalili Shiraz-Rasha and four foreign cultivars Thompson seedless, Flame seedless, Perlette and Black seedless,This study was carried out as –randomized complete blocks design -with-four replications in the Kahriz Horticulture Research station -.A total of 30 adult leaves per cultivar were

Nutrition mediates the expression of cultivar-farmer conflict in a fungus-growing ant.

Science.gov (United States)

Shik, Jonathan Z; Gomez, Ernesto B; Kooij, Pepijn W; Santos, Juan C; Wcislo, William T; Boomsma, Jacobus J

2016-09-06

Attine ants evolved farming 55-60 My before humans. Although evolutionarily derived leafcutter ants achieved industrial-scale farming, extant species from basal attine genera continue to farm loosely domesticated fungal cultivars capable of pursuing independent reproductive interests. We used feeding experiments with the basal attine Mycocepurus smithii to test whether reproductive allocation conflicts between farmers and cultivars constrain crop yield, possibly explaining why their mutualism has remained limited in scale and productivity. Stoichiometric and geometric framework approaches showed that carbohydrate-rich substrates maximize growth of both edible hyphae and inedible mushrooms, but that modest protein provisioning can suppress mushroom formation. Worker foraging was consistent with maximizing long-term cultivar performance: ant farmers could neither increase carbohydrate provisioning without cultivars allocating the excess toward mushroom production, nor increase protein provisioning without compromising somatic cultivar growth. Our results confirm that phylogenetically basal attine farming has been very successful over evolutionary time, but that unresolved host-symbiont conflict may have precluded these wild-type symbioses from rising to ecological dominance. That status was achieved by the evolutionarily derived leafcutter ants following full domestication of a coevolving cultivar 30-35 Mya after the first attine ants committed to farming.

A Comparison of Flavor Differences between Pecan Cultivars in Raw and Roasted Forms.

Science.gov (United States)

Magnuson, Shelby M; Kelly, Brendan; Koppel, Kadri; Reid, William

2016-05-01

The objective of this research was to explore sensory differences among 8 different pecan cultivars ("Pawnee," "Witte," "Kanza," "Major," "Lakota," "Giles," "Maramec," "Chetopa") in raw and roasted forms. The cultivars were collected from 2 growing seasons (2013 and 2014) and evaluated separately. Trained panelists evaluated each cultivar from each season in raw and roasted forms, measuring intensities of 20 flavor attributes using descriptive analysis. The intensities of 10 of the 20 flavor attributes were higher for the roasted pecans across all cultivars. These included pecan ID, overall nutty, nutty-woody, nutty-grainlike, nutty-buttery, brown, caramelized, roasted, overall sweet, and sweet. The cultivars exhibited significant differences from one another for 8 attributes: pecan ID, nutty-buttery, caramelized, acrid, woody, oily, astringent, and bitter. Each of the cultivars displayed unique flavor profiles with some demonstrating extremes of certain attributes, for example the high astringency of "Lakota" or the buttery characteristics of "Pawnee." These results may help pecan growers and pecan product manufacturers understand flavor differences between different varieties of pecans, both in raw and roasted states, and the changes that occur during this process. © 2016 Institute of Food Technologists®

Biology and reproductive capacity of Spodoptera eridania (Cramer (Lepidoptera, Noctuidae in different soybean cultivars

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Bruna Magda Favetti

2015-06-01

Full Text Available This study aimed to evaluate the development, survival and reproductive capacity of Spodoptera eridania in four soybean cultivars. The experiment was conducted in the laboratory, in a climatic chamber at 25 °C ± 1 °C, 70 ± 10% relative humidity and 12 h photophase. The cultivars used were: FMT Tabarana, BRS/MT Pintado, FMT Tucunaré and Monsoy 8757, all conventional cultivars with medium cycles. All cultivars tested allowed the development of S. eridania. However, Monsoy 8757 was the cultivar that most affected the prolonged in the duration larval, pupal and total cycle, showed lower pupal weight as well as reduction in the intrinsic rate increase. These results contribute to the management of this species in regions of outbreaks in soybean areas.

BRS 151 L-7: nova cultivar de amendoim para as condições do nordeste brasileiro BRS 151 L-7: a new peanut cultivar recommended to the brazilian northeast conditions

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ROSEANE CAVALCANTI DOS SANTOS

2000-03-01

Full Text Available A BRS 151 L-7 é uma nova cultivar de amendoim, de sementes de coloração vermelha, de forma oblonga, desenvolvida pela Embrapa-Centro Nacional de Pesquisa de Algodão (CNPA, e destinada ao consumo in natura e à indústria de alimentos. A cultivar é de porte ereto, resultante do cruzamento entre a cultivar produtiva IAC-Tupã (tipo Valência e a cultivar Senegal 55-437 (tipo Spanish, de ciclo curto. Em ensaios regionais realizados em 27 municípios de quatro estados da Região Nordeste, a cultivar apresentou grande potencial para produtividade de sementes, ciclo vegetativo de 87 dias, tolerância ao estresse hídrico, e grande adaptação ao cultivo em clima semi-árido. Sua produtividade média de vagens em condições experimentais é de 1.850 kg ha-1 em cultivo de sequeiro, e 4.500 kg ha-1 em condições irrigadas, o que corresponde a uma elevação na ordem de 12% e 38%, respectivamente, com relação à produtividade da cultivar tradicional Tatu. No aspecto nutricional, a cultivar BRS 151 L-7 tem baixo teor de óleo (46%, e sua farinha desengordurada contém 55% de proteína; entre os aminoácidos essenciais, é limitante apenas no teor de lisina, em comparação com o padrão da FAO/85.BRS 151 L-7 is a new large seeded and red testa color peanut cultivar, developed by Embrapa-Centro Nacional de Pesquisa de Algodão and destined to in natura consumption and food industry. This cultivar is an erect type plant, and was obtained by hybridization between a high yield Valência genotype (IAC-Tupã and a short-season cultivar from Senegal 55-437 (Spanish. In 27 regional yield trials, where evaluation is made under different agroecological conditions in four states of the Brazilian Northeast, BRS 151 L-7 showed high seed yield potential, short cycle (87 days, tolerance to drought and adaptation to semi-arid environment. The average pod yield in the rainy season was about 1.85 ton ha-1 and in irrigated conditions it was 4.50 ton ha-1, which

Cultivares e estádios de Colheita no Rendimento Forrageiro da Soja

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Pedro Milanez de Rezende

2011-04-01

Full Text Available Com o objetivo de verificar a influência do estádio de colheita sobre a produção e a qualidade do feno de duas cultivares de soja foi conduzido ensaio em Lavras, MG, no ano agrícola 2001/02. Utilizou-se o delineamento experimental de blocos casualizados, em esquema fatorial 2 x 5, com três repetições, compreendendo duas cultivares (Conquista e Monsoy 8400 e cinco estádios de corte (R2, R3, R4, R5 e R6. As cultivares afetaram apenas o rendimento de proteína do feno. Os maiores rendimentos de matéria seca, feno e proteínas foram obtidos com os cortes nos estádios R4, R5 e R6. Quanto ao rendimento de proteína bruta, verificou-se queda após o corte em R5. Esta redução, provavelmente, associada a efeito de estresse hídrico e ou diluição da proteína na matéria seca. O estádio de desenvolvimento R4 apresentou a melhor opção de corte para fenação, independentemente da cultivar. A cultivar Monsoy 8400 apresentou maior rendimento de proteína bruta que a cultivar Conquista.

Oral challenges with four apple cultivars result in significant differences in oral allergy symptoms.

Science.gov (United States)

Nybom, Hilde; Cervin-Hoberg, Charlotte; Andersson, Morgan

2013-01-01

We analyzed the hypoallergenic potential of a recently bred apple selection with unusually low content of Mal d 1, using an oral challenge model with three additional apple cultivars for comparison. Sixty-six birch pollen-allergic individuals with a history of oral allergy syndrome after apple intake were subjected to a double-blind oral provocation with two apple cultivars (B:0654 and 'Discovery'). Thirteen also tested two other apple cultivars ('Ingrid Marie' and 'Gloster'). Three doses were given consecutively, 30 min apart: 10 g without peel, and 10 and 50 g with peel. A final assessment was conducted 30 min after the last intake. Oral symptoms were graded from 0 to 5. Total oral symptom score (TOS) included all scores for each cultivar at all time points. B:0654 induced significantly higher TOS than 'Discovery' when tested by 66 individuals, in spite of its lower Mal d 1 content. TOS values were higher in females and increased with increasing age of the individuals when challenged with 'Discovery'. Among the 13 individuals who tested all four cultivars, B:0654 produced a higher score after the second dose compared to 'Ingrid Marie'. This was also the case after the third dose compared to 'Ingrid Marie' and 'Gloster', and again 30 min after the last intake compared to each of the other three cultivars, as well as a higher TOS compared to each of the other three cultivars (all p safe and well tolerated, and produced significant differences among the apple cultivars. Contrary to expectations, B:0654 was less well tolerated than the other three cultivars. Copyright © 2013 S. Karger AG, Basel.

CARACTERÍSTICAS AGRONÔMICAS DE CULTIVARES DE SORGO (Sorghum bicolor (L. Moench SOB TRÊS DOSES DE NITROGÊNIO AGRONOMIC TRAITS OF SORGHUM CULTIVARS AT THREE LEVELS OF NITROGEN FERTILIZER

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Susana Queiroz Santos Mello

2007-09-01

Full Text Available

O objetivo do trabalho foi avaliar as características agronômicas de quatro cultivares de sorgo forrageiros, submetidas a três doses de nitrogênio, em solo classificado como Latossolo vermelho distrófico argiloso. Utilizou-se o delineamento blocos casualizados, em esquema fatorial 4x3. As cultivares foram os híbridos CMSXS 762, BRS 610, BR 700 e a variedade BR 506, com três doses de nitrogênio: 50 kg.ha^-1, 75 kg.ha^-1 e 100 kg.ha^-1. A produção de matéria natural, com média geral de 59,31 t.ha^-1, diferiu entre as cultivares (teste Tukey a 5% de probabilidade, porém, não diferiu em função das doses de nitrogênio. A produção de massa seca, com média de 15,17 t.ha^-1, não diferiu entre as cultivares, nem entre as doses de N. Já os teores de matéria seca e as porcentagens de panícula e de colmo na matéria natural diferiram tanto entre as cultivares como em função das doses. A altura das plantas, com média geral de 2,39 m, e o teor de matéria seca do colmo diferiram somente entre as cultivares. As cultivares BR 700 e CMSXS 762 apresentaram uma melhor relação entre panícula/colmo/folha e uma maior porcentagem de panícula. E, à medida que se aumentou a dose de nitrogênio, verificou-se maior participação de panícula, com redução na percentagem de colmo.

PALAVRAS-CHAVE: Sorgo; adubação nitrogenada; avaliação agronômica.

The objective of this study was to evaluate characteristics of four forage sorghum cultivars at three levels of nitrogen fertilizer in an Oxisoil. A randomized complete block design in a 4x3 factorial scheme (CMSXS 762, BRS 610, BR 700 and BR 506 hybrid cultivars combined with 50 kg.ha^-1, 75 kg.ha^-1 and 100 kg.ha^-1 nitrogen levels. A Tukey

Time-Domain Nuclear Magnetic Resonance Investigation of Water Dynamics in Different Ginger Cultivars.

Science.gov (United States)

Huang, Chongyang; Zhou, Qi; Gao, Shan; Bao, Qingjia; Chen, Fang; Liu, Chaoyang

2016-01-20

Different ginger cultivars may contain different nutritional and medicinal values. In this study, a time-domain nuclear magnetic resonance method was employed to study water dynamics in different ginger cultivars. Significant differences in transverse relaxation time T2 values assigned to the distribution of water in different parts of the plant were observed between Henan ginger and four other ginger cultivars. Ion concentration and metabolic analysis showed similar differences in Mn ion concentrations and organic solutes among the different ginger cultivars, respectively. On the basis of Pearson's correlation analysis, many organic solutes and 6-gingerol, the main active substance of ginger, exhibited significant correlations with water distribution as determined by NMR T2 relaxation, suggesting that the organic solute differences may impact water distribution. Our work demonstrates that low-field NMR relaxometry provides useful information about water dynamics in different ginger cultivars as affected by the presence of different organic solutes.

Reproductive biology in monoecious and gynoecious cucumber cultivars as a result of IBA application Biologia reprodutiva de cultivares monóicas e ginóicas de pepino em função do uso de AIB

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Valdir Diola

2008-03-01

Full Text Available The understanding of both the reproductive biology and the regulation of the sexual expression of cucumber flowers (Cucumis sativus makes crop management easier and can improve fruit yield and quality. The objective of this study was to evaluate the physiological answer of cucumber floral verticils to the application of IBA. The experiment was carried out in a greenhouse, in completely randomized blocks, with four replications of 4-plant plots, and treatments applied to a 5 x 2 factorial (0, 50, 100, 200, and 500 µmol of IBA, and two cultivars: Wisconsin MR28, gynoecious, and Caipira, monoecious. Cultivar Wisconsin MR28 produced in average 7,636 pollen grains (PG per flower, with a positive linear response to the increase in IBA concentration. Instead, in cultivar Caipira (5,160 PG all IBA concentrations reduced PG production. Cultivars did not differ from each other in relation to PG viability (average in vitrogermination of 75.4 and 79.9% to cultivars Wisconsin MR28 and Caipira, respectively and in both PG viability increased linearly with the increase in AIB concentration. Cultivars Wisconsin MR28 and Caipira presented in average 71.6 and 70.6 seeds per fruit respectively, and responded with an increase in seed number and improvement in fruit general aspect to the rise in IBA concentration. The ratio male:female flowers was significantly different between cultivars (4.2:1 and 3.5:1, respectively to cultivars Wisconsin MR28 and Caipira and responded in a distinct way to IBA concentrations. While in cultivar Caipira, IBA concentrations near to 100 µmol increased the number of male flowers; in cultivar Wisconsin MR28 the same IBA concentration reduced it. The two cultivars had a similar number of female flowers. However, whereas it remained relatively stable in cultivar Caipira in spite of the increase in IBA concentration, there was an increase in the number of female flowers in cultivar Wisconsin MR28, as a result of the rise in IBA

Divergência genética entre acessos e cultivares de mamoneira por meio de estatística multivariada Genetic divergence on castor bean accesses and cultivars through multivariate analysis

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Mauro Nóbrega da Costa

2006-11-01

Full Text Available O objetivo deste trabalho foi avaliar a divergência genética entre acessos e cultivares de mamoneira (Ricinus communis L. e utilizá-la como critério na escolha de genitores que viabilizem, a partir de hibridações, a formação de populações segregantes. Os tratamentos foram representados pelos acessos BRA 4871, BRA 2968, BRA 5550 e BRA 7722 Papo-de-gia, e as cultivares BRS 188 Paraguaçu, BRS 149 Nordestina, IAC-80, Mirante-10 e Pernambucana Melhorada. As características analisadas foram: início do florescimento (FR, número de racemos por planta (NRP, comprimento efetivo do racemo primário (CR, altura de planta (AP, potencial produtivo (PP e teor de óleo nas sementes (TO. A divergência genética foi estimada por meio de estatística multivariada, com base em variáveis canônicas e análise de agrupamento, tendo-se empregado a distância euclidiana média. Houve a formação de dois grupos: o grupo I formado por oito genótipos e o grupo II por apenas um genótipo, a cultivar Mirante-10. Apesar de a cultivar Mirante-10 ter sido a mais divergente, não deve ser recomendada para hibridação, por sua baixa média de desempenho. As demais cultivares também apresentam restrições para hibridação, por serem bastante similares. As variáveis que mais contribuíram para a divergência genética foram FR, AP, TO e CR.This work aimed to evaluate genetic divergence among castor bean (Ricinus communis L. cultivars, in order to enable the choice of parents which make the formation of segregating populations possible. Accesses BRA 4871, BRA 2968, BRA 5550 and BRA 7722 Papo-de-gia, and cultivars BRS 188 Paraguaçu, BRS 149 Nordestina, IAC-80, Mirante-10 and Pernambucana Melhorada were evaluated. Characteristics analyzed were: days to flowering, number of racemes per plant, length of pistillate region of main raceme, plant height, potential yield, and seed oil content. The genetic divergence among accesses and cultivars was studied by

UTILIZACION DE ISOENZIMAS DE EXTRACTOS DE HOJAS EN LA CARACTERIZACION DE CULTIVARES DE DURAZNERO (Prunus persica (L Batsch THE USE OF ISOZYME LEAF EXTRACTS IN THE CHARACTERIZATION OF PEACH CULTIVARS (Prunus persica L Batsch

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HECTOR ABEL ALTUBE

2001-08-01

Full Text Available La caracterización de cultivares de duraznero (Prunus persica (L Batsch se hace por medio de la descripción de caracteres agronómicos y morfológicos codificados por organizaciones internacionales, los cuales están fuertemente influenciados por el ambiente. Se han buscado métodos alternativos de caracterización y las isoenzimas han sido utilizadas por su independencia de las condiciones del ambiente, además de identificar individuos en etapas tempranas de su desarrollo. El objetivo del presente estudio es caracterizar cultivares de duraznero mediante el análisis isoenzimático de catecol oxidasas, fosfatasas ácidas, esterazas y peroxidazos en extractos de hojas. Los cultivares de duraznero analizados presentaron bajo polimorfismo isoenzimático, las esterazas caracterizaron diez cultivares, las catecol oxidasas un cultivar agrupándose el resto en cinco modelos, las fosfatasas ácidas caracterizaron dos cultivares agrupándose los otros en siete modelos y las peroxidazos formaron tres grupos. Ello puede explicarse ya que el duraznero es una especie autofértil y presenta una base genética muy reducida. Los evidentes límites discriminatorios de este tipo de análisis hacen que su aporte sea sólo complementario a los métodos de los caracteres agronómicos y morfológicos.Characterization of peach cultivars (Prunus persica (L Batsh was made by description of agronomical and morphological characters codified from international organizations, which are strongly affected by environmental conditions. Alternative methods of characterization have been searched, and isoenzymes have been used as independent of environmental conditions in addition to identify some individuals in early stages of development. The goal of this study is the peach cultivars characterization by isoenzymatic analysis of catecol oxidases, acid phosphatases, esterases and peroxidases within the leaf extracts. The peach cultivars analyzed have showed low isoenzymatic

TOTAL NON-STRUCTURAL CARBOHYDRATE (TNC OF THREE CULTIVARS OF NAPIER GRASS (Pennisetum purpureum AT VEGETATIVE AND REPRODUCTIVE PHASE

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B. Budiman

2014-10-01

Full Text Available An experiment was conducted to determine Total Non-structural carbohydrates (TNC of threecultivars of napier grass (Pennisetum purpureum harvested at vegetative and reproductive phases. Thecultivars tested were Taiwan (Gt, King (Gk and Mott (Gm and arranged in a 3 x 2 of treatments withfour replicates following nested design. The results showed that the highest sugar content (P<0.01 wasfound in Gt cultivar and the lowest was in Gm cultivar. The highest starch content (P<0.01 was found inGk cultivar and the lowest was in Gt cultivar. TNC content of Gt and Gk cultivars were not significantlydifferent, but both were significantly higher (P<0.01 compared with the Gm cultivar. It can beconcluded, that there were differences in TNC between cultivars, however, the TNC content in Gkcultivar was not different with Gt cultivar, while Gm cultivar have the lowest (P<0.01 TNC content. Atreproductive phase all cultivars have higher (P<0.01 TNC and starch content than at vegetative phase

Linking resource selection and mortality modeling for population estimation of mountain lions in Montana

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Robinson, Hugh S.; Ruth, Toni K.; Gude, Justin A.; Choate, David; DeSimone, Rich; Hebblewhite, Mark; Matchett, Marc R.; Mitchell, Michael S.; Murphy, Kerry; Williams, Jim

2015-01-01

To be most effective, the scale of wildlife management practices should match the range of a particular species’ movements. For this reason, combined with our inability to rigorously or regularly census mountain lion populations, several authors have suggested that mountain lions be managed in a source-sink or metapopulation framework. We used a combination of resource selection functions, mortality estimation, and dispersal modeling to estimate cougar population levels in Montana statewide and potential population level effects of planned harvest levels. Between 1980 and 2012, 236 independent mountain lions were collared and monitored for research in Montana. From these data we used 18,695 GPS locations collected during winter from 85 animals to develop a resource selection function (RSF), and 11,726 VHF and GPS locations from 142 animals along with the locations of 6343 mountain lions harvested from 1988–2011 to validate the RSF model. Our RSF model validated well in all portions of the State, although it appeared to perform better in Montana Fish, Wildlife and Parks (MFWP) Regions 1, 2, 4 and 6, than in Regions 3, 5, and 7. Our mean RSF based population estimate for the total population (kittens, juveniles, and adults) of mountain lions in Montana in 2005 was 3926, with almost 25% of the entire population in MFWP Region 1. Estimates based on a high and low reference population estimates produce a possible range of 2784 to 5156 mountain lions statewide. Based on a range of possible survival rates we estimated the mountain lion population in Montana to be stable to slightly increasing between 2005 and 2010 with lambda ranging from 0.999 (SD = 0.05) to 1.02 (SD = 0.03). We believe these population growth rates to be a conservative estimate of true population growth. Our model suggests that proposed changes to female harvest quotas for 2013–2015 will result in an annual statewide population decline of 3% and shows that, due to reduced dispersal, changes to

THE EFFECT OF RICE CULTIVARS ON METHANE EMISSION FROM IRRIGATED RICE FIELD

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P. Setyanto

2016-10-01

Full Text Available Rice plants have been reported to affect methane (CH4 emission from rice fields. The objectives of this study were to determine the effect of rice cultivars on CH4 emission from flooded rice and to develop crop management strategies with low emitting rice cultivars while sustaining high yield. The four rice cultivars studied were Memberamo, Cisadane, IR64, and Way Apoburu. The CH4 emissions were determined in the wet season of 2001/2002 (November-February using an automated closed chamber technique in an irrigated field condition. Farmyard manure at the rate of 5 t ha-1 was given to the plots to ensure carbon was not limited. Root weight, root length, biomass, and number of tillers were determined at 17, 36, and 57 days after transplanting (DAT. The results showed that the mean CH4 emission was highest in the plot planted with Cisadane (94.8 kg CH4 ha-1, and the lowest with IR64 (37.7 kg CH4 ha-1. The plots treated with emberamo and Way Apoburu resulted an intermediate CH4 emission at the average of 61.1 and 58.9 kg CH4 ha-1, respectively. There was no significant difference in yield between the cultivars tested. The yield of Memberamo, Cisadane, IR64, and Way Apoburu were 5.882, 5.764, 5.873 and 6.065 t ha-1, respectively. Statistical analysis showed that there were no significant differences in the root weight and root length among cultivars. However, Cisadane gave the highest dry matter weight (222 g hill-1 at 57 DAT compared to the other cultivars (175-190 g hill-1. Plant tillers did not show significant differences between the cultivars. Regression analysis showed that CH4 flux was significantly related with root weight, root length, aboveground biomass, and number of plant tillers. This finding shows that the use of selected cultivars, such as IR64, can potentially lower CH4 emission without scarifying yield.

Diversidade genética entre cultivares de mangueiras, baseada em caracteres de qualidade dos frutos

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Danielle Fabíola Pereira da Silva

2012-04-01

Full Text Available A mangueira é uma das fruteiras mais importantes do Brasil. Apesar de existirem muitos cultivares, o cultivo tem sido realizado basicamente com o cultivar 'Tommy Atkins' e existem poucos trabalhos sobre caracterização e análise da diversidade genética dos genótipos disponíveis. Por isso, o objetivo deste trabalho foi estudar a diversidade genética de 15 cultivares de mangueiras, produzidos na Zona da Mata Mineira, sendo oito brasileiros e sete oriundos da Flórida (EUA. Para isto, frutos maduros dos 15 cultivares foram colhidos e analisados química e fisicamente. Os cultivares que se apresentaram mais similares foram 'Kent' e 'Palmer'. O cultivar 'Extrema' não se agrupou com os outros pelo método de agrupamento UPGMA, e, por esta análise houve a separação dos cultivares brasileiros e norte-americanos. Quanto às características químicas, a técnica de componentes principais não agrupou os cultivares 'Extrema' e 'Tommy Atkins' com os demais; já quanto às características físicas, observou-se a mesma separação obtida pelo agrupamento UPGMA, com exceção do cultivar 'Extrema' que, neste caso, agrupou-se com os demais cultivares. Observou-se correlação entre a coloração da polpa, o ângulo hue e o teor de açúcares solúveis totais e entre a coloração da casca, o índice b* e a percentagem de casca e polpa.

Estimativa da similaridade genética e identificação de cultivares do morangueiro por análise de RAPD Estimate of the genetic similarity and identification of strawberry cultivars by RAPD analysis

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José Henrique Conti

2002-06-01

Full Text Available Caracteres moleculares do morango foram avaliados para conhecer cultivares que estão sendo introduzidas no Brasil. Utilizou-se o método do polimorfismo de DNA amplificado ao acaso (RAPD. Os caracteres moleculares com maior poder de discriminação foram os "marcadores" gerados pelos "primers" Operon B8, Operon B19 e Operon G5, que foram eficientes para discriminar as vinte e seis cultivares estudadas. Os dados foram interpretados com o auxílio de dendograma, mapa de bandas, quadro de identificação e chave dicotômica. Foi possível distinguir seis grupos de similaridade, dois deles com cultivares selecionadas no Brasil, sendo um com 'Campinas', 'Agf 80', 'Piedade', 'Jundiaí' e 'Monte Alegre' e o outro com 'Obaira' e 'Mantiqueira'; três grupos com cultivares introduzidas, sendo o primeiro com 'Lassen', 'Reiko', 'Chandler', 'Pajaro', 'Blackmore' e 'Seascape', o segundo com 'Fern' e 'Oso Grande' e o terceiro com 'Florida Belle' e 'Selva' O último grupo reuniu as cultivares 'Dover' e 'Dabreak' junto com 'Princesa Isabel'.Strawberry cultivars introduced in Brazil were identified through molecular study. The method of Random Amplified Polymorphic DNA (RAPD was used. Molecular characters with larger discrimination power were produced by the primers Operon B8, Operon B19 and Operon G5. These were efficient to discriminate the twenty six studied cultivars. Data were analised through dendogram, bandmap, picture and dicotomic key. Six similarity groups were distinguished: Two with cultivars selected in Brazil, one with 'Campinas', 'Agf 80', 'Piedade', 'Jundiaí' and 'Monte Alegre' and the other with 'Obaira' and 'Mantiqueira'; three with introduced cultivars the first of which 'Lassen', 'Reiko', 'Chandler', 'Pajaro', 'Blackmore' and 'Seascape', the second with 'Fern' and 'Oso Grande' and the third with 'Florida Belle' and 'Selva'. The last group united the cultivars 'Dover' and 'Dabreak' with 'Princesa Isabel'.

Metabolic phenotyping of various tea (Camellia sinensis L.) cultivars and understanding of their intrinsic metabolism.

Science.gov (United States)

Ji, Hyang-Gi; Lee, Yeong-Ran; Lee, Min-Seuk; Hwang, Kyeong Hwan; Kim, Eun-Hee; Park, Jun Seong; Hong, Young-Shick

2017-10-15

Recently, we selected three tea (Camellia sinensis) cultivars that are rich in taste, epigallocatechin-3-O-gallate (EGCG) and epigallocatechin-3-O-(3-O-methyl)-gallate (EGCG3″Me) and then cultivated them through asexual propagation by cutting in the same region. In the present study, proton nuclear magnetic resonance ( 1 H NMR)-based metabolomics was applied to characterize the metabotype and to understand the metabolic mechanism of these tea cultivars including wild type tea. Of the tea leaf metabolite variations, reverse associations of amino acid metabolism with catechin compound metabolism were found in the rich-taste, and EGCG- and EGCG3″Me-rich tea cultivars. Indeed, the metabolism of individual catechin compounds in the EGCG3″Me-rich cultivar differed from those of other tea cultivars. The current study highlights the distinct metabolism of various tea cultivars newly selected for cultivation and the important role of metabolomics in understanding the metabolic mechanism. Thus, comprehensive metabotyping is a useful method to assess and then develop a new plant cultivar. Copyright © 2017 Elsevier Ltd. All rights reserved.

Interaction of Vesicular-Arbuscular Mycorrhizae and Cultivars of Alfalfa Susceptible and Resistant to Meloidogyne hapla.

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Grandison, G S; Cooper, K M

1986-04-01

The interaction between vesicular-arbuscular mycorrhizal (VAM) fungi and the root-knot nematode (Meloidogyne hapla) was investigated using both nematode-susceptible (Grasslands Wairau) and nematode-resistant (Nevada Synthetic XX) cultivars of alfalfa (Medicago sativa) at four levels of applied phosphate. Mycorrhizal inoculation improved plant growth and reduced nematode numbers and adult development in roots in dually infected cultures of the susceptible cultivar. The tolerance of plants to nematode infection and development when preinfected with mycorrhizal fungi was no greater than when they were inoculated with nematodes and mycorrhizal fungi simultaneously. Growth of plants of the resistant cultivar was unaffected by nematode inoculation but was improved by mycorrhizal inoculation. Numbers of nematode juveniles were lower in the roots of the resistant than of the susceptible cultivar and were further reduced by mycorrhizal inoculation, although no adult nematodes developed in any resistant cultivar treatment. Inoculation of alfalfa with VAM fungi increased the tolerance and resistance of a cultivar susceptible to M. hapla and improved the resistance of a resistant cultivar.

Cultivars

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Oleg Blum

2011-01-01

Full Text Available Some modern agrochemicals with antioxidant potential were tested for their protective effect against ozone injury using clover and tobacco ozone-sensitive cultivars as model plants subjected to ambient ozone at two sites (Kyiv city in Ukraine and Szarów village in Poland. All used agrochemicals showed partial protective effects against ozone injury on clover and tobacco. Conducted studies confirmed the effectiveness of modern fungicides belonging to strobilurin group as protectants of sensitive crops against ozone damage. The effectiveness of new growth regulators “Emistym C” and “Agrostymulin” was showed for the first time. Out of the studied agrochemicals, fungicide “Strobi” and natural growth regulator “Emistym C” demonstrated the best protective effects. These agrochemicals present promise for further studies of their possible utilization for enhancement of ozone tolerance of sensitive crops.

Extending the durability of cultivar resistance by limiting epidemic growth rates.

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Carolan, Kevin; Helps, Joe; van den Berg, Femke; Bain, Ruairidh; Paveley, Neil; van den Bosch, Frank

2017-09-27

Cultivar resistance is an essential part of disease control programmes in many agricultural systems. The use of resistant cultivars applies a selection pressure on pathogen populations for the evolution of virulence, resulting in loss of disease control. Various techniques for the deployment of host resistance genes have been proposed to reduce the selection for virulence, but these are often difficult to apply in practice. We present a general technique to maintain the effectiveness of cultivar resistance. Derived from classical population genetics theory; any factor that reduces the population growth rates of both the virulent and avirulent strains will reduce selection. We model the specific example of fungicide application to reduce the growth rates of virulent and avirulent strains of a pathogen, demonstrating that appropriate use of fungicides reduces selection for virulence, prolonging cultivar resistance. This specific example of chemical control illustrates a general principle for the development of techniques to manage the evolution of virulence by slowing epidemic growth rates. © 2017 The Author(s).

BRS 374 – Wheat cultivar

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Eduardo Caierão

2013-01-01

Full Text Available BRS 374 is a wheat cultivar developed by Embrapa. It resulted from a cross between the F1 generation of PF 88618/Coker80.33 and Frontana/Karl. BRS 374 belongs to the soft wheat class, has a low plant height, a high potential grain yield, andwhite flour.

77 FR 33390 - Beaverhead-Deerlodge National Forest; Montana; Supplemental EIS for the Beaverhead-Deerlodge...

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2012-06-06

..., watershed, vegetation, wildlife, and recreation users. This analysis will be used to determine if snowmobile... Land and Resource Management Plan (Forest Plan) environmental analysis in response to an April 2, 2012.... District Court for the District of Montana (Case 9:10-cv-00104-DWM) alleging inadequate analysis of the...

Preferência alimentar do bicudo-do-algodoeiro por frutos de diferentes cultivares e idades

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Busoli Antonio Carlos

2004-01-01

Full Text Available O objetivo deste trabalho foi avaliar a preferência alimentar de adultos do bicudo-do-algodoeiro, Anthonomus grandis Boheman, 1843 (Coleoptera: Curculionidae, por duas cultivares de algodão (Gossypium hirsutum L. com frutos de diferentes idades. Foram realizados quatro experimentos em laboratório, avaliando-se o número de orifícios de alimentação. Maçãs de 2, 8 e 12 dias de idade, das cultivares IAC-20 e Reba P288, foram oferecidas aos insetos, confinados em recipientes, com opção de escolha quanto à idade e cultivar (primeiro experimento, sem opção de escolha quanto à idade e cultivar (segundo experimento, sem opção de escolha quanto à cultivar e com opção quanto a idade (terceiro experimento e sem opção quanto à idade e com opção de escolha quanto à cultivar (quarto experimento. Observou-se preferência por maçãs da cultivar IAC-20 com dois dias de idade, com uma redução de danos de 23,53% e 78,43%, respectivamente, aos oito e aos doze dias de idade.

Assessment of potential soybean cadmium excluder cultivars at different concentrations of Cd in soils.

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Zhi, Yang; He, Kangxin; Sun, Ting; Zhu, Yongqiang; Zhou, Qixing

2015-09-01

The selection of cadmium-excluding cultivars has been used to minimize the transfer of cadmium into the human food chain. In this experiment, five Chinese soybean plants were grown in three soils with different concentrations of Cd (0.15, 0.75 and 1.12mg/kg). Variations in uptake, enrichment, and translocation of Cd among these soybean cultivars were studied. The results indicated that the concentration of Cd in seeds that grew at 1.12mg/kg Cd in soils exceeded the permitted maximum levels in soybeans. Therefore, our results indicated that even some soybean cultivars grown on soils with permitted levels of Cd might accumulate higher concentrations of Cd in seeds that are hazardous to human health. The seeds of these five cultivars were further assessed for interactions between Cd and other mineral nutrient elements such as Ca, Cu, Fe, Mg, Mn and Zn. High Cd concentration in soil was found to inhibit the uptake of Mn. Furthermore, Fe and Zn accumulations were found to be enhanced in the seeds of all of the five soybean cultivars in response to high Cd concentration. Cultivar Tiefeng 31 was found to fit the criteria for a Cd-excluding cultivar under different concentrations of Cd in soils. Copyright © 2015. Published by Elsevier B.V.

Evaluation of fruit leather made from two cultivars of papaya

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ZUHAIR RADHI ADDAI

2016-03-01

Full Text Available Two papaya cultivars were used to manufacture fruit leather. The objective of this study was to formulate papaya leather from locally grown papaya using natural ingredients like pectin, honey and citric acid. The fresh fruits were pureed and mix with natural ingredients, and dried in an oven at 60°C for 12 hours. The physicochemical properties and antioxidant activity were determined.The results showed that fruit leather made from Hongkong cultivar is significantly (P<0.05 higher in sensory parameters as well as physicochemical properties and antioxidant activity. The phenolics content and antioxidant activity increased by process of drying the fruit leather compared to fresh fruits in both papaya cultivars. Therefore, the consumer requirements for healthy and safe food products were respected.

Improved regeneration and transformation protocols for three strawberry cultivars

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Zakaria, Hossam; Hussein, Gihan M; Abdel-Hadi, Abdel-Hadi A; Abdallah, Naglaa A

2014-01-01

Strawberry (Fragaria × ananassa) is an economically important soft fruit crop with polyploid genome which makes the breeding of new cultivars difficult. Simple and efficient method for transformation and regeneration is required for cultivars improvement in strawberry. In the present study, adventitious shoot regeneration has been investigated in three cultivated strawberry plants, i.e., Festival, Sweet Charly and Florida via direct organogenesis using the in vitro juvenile leaves as explants. Explants were collected after sub-culturing on a propagation medium composed of MS supplemented with 0.5 mg/l BA; 0.1 mg/l GA3 and 0.1 mg/l IBA. To select the suitable organogenesis, the explants of the three cultivars were cultured on MS medium supplemented with different concentrations of TDZ (1, 2, 3, and 4 mg/l), then incubated at a temperature of 22 °C ± 2. Medium containing 2 mg/l TDZ revealed the best regeneration efficiency with the three cultivars (72% for Festival, and 73% for Sweet Charly and Florida). After 4 weeks, the produced shoots were cultured on MS medium with different concentrations of BA and Kin to enhance shoot elongation. Results showed that the medium containing 1.5 mg/l BA and 0.5 mg/l Kin revealed highest elongation efficiency (88% and 94%) for Festival and Sweet Charly, respectively. On the other hand, medium containing 1.5 mg/l BA and 0.1 mg/l Kin showed highest elongation efficiency (90%) in Florida. Elongated shoots were successfully rooted on MS medium containing 1.5 mg/l NAA. Furthermore, transformation of the two cultivars, Festival and Sweet Charly, has been established via Agrobacterium strain LBA44404 containing the plasmid pISV2678 with gus-intron and bar genes. Three days post co-cultivation, GUS activity was screening using the histochemical assay. The results showed 16% and 18% of the tested plant materials has changed into blue color for Festival and Sweet Charly, respectively. Out of 120 explants only 13 shoots were developed on

76 FR 68503 - Winter Use Plan, Final Environmental Impact Statement, Yellowstone National Park, Idaho, Montana...

Science.gov (United States)

2011-11-04

... DEPARTMENT OF THE INTERIOR National Park Service Winter Use Plan, Final Environmental Impact.... ACTION: Notice of availability of the Final Environmental Impact Statement for the Winter Use Plan... Winter Use Plan for Yellowstone National Park, located in Idaho, Montana, and [[Page 68504

77 FR 2970 - Gibson Dam Hydroelectric Company, LLC, Montana; Notice of Availability of Final Environmental...

Science.gov (United States)

2012-01-20

... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 12478-003] Gibson Dam Hydroelectric Company, LLC, Montana; Notice of Availability of Final Environmental Assessment In accordance with... reviewed the application for license for the Gibson Dam Hydroelectric Project, located at the U.S...

Suscetibilidade de biótipos de arroz-vermelho e de cultivares de arroz irrigado ao herbicida imazethapyr Susceptibility of red rice biotypes and commercial rice cultivars to imazethapyr

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S.H.B. Dornelles

2010-01-01

Full Text Available Para avaliar a suscetibilidade de biótipos de arroz-vermelho(Oryza sativa e cultivares comerciais de arroz ao herbicida imazethapyr, realizou-se um ensaio em casa de vegetação com cinco biótipos de arroz-vermelho (acessos Santa Maria 5, Pelotas 3, Rio Pardo 1, Manoel Viana 2 e Catuçaba 1, dois cultivares comerciais de arroz: Clearfield® (IRGA 422 CL e Puitá INTA CL e um cultivar convencional (IRGA 417. Utilizou-se a metodologia de curvas de dose-resposta proposta por Seefeldt et al. (1995. A metodologia de curvas de resposta foi gerada a partir dos parâmetros do modelo logístico e dos valores de I50. Os biótipos de arroz-vermelho e os cultivares foram submetidos a seis doses do herbicida imazethapyr (0; 33,12; 66,25; 132,5; 265,0; e 530,0 g i.a. ha-1. As plantas de arroz foram contadas e coletadas no 20º dia após a aplicação dos tratamentos. A análise do percentual de dano foi realizada através de avaliação visual da fitointoxicação (%, massa verde e massa seca das plantas. Analisando as curvas e os resultados da análise da variância, pode-se inferir que os cultivares Clearfield Irga 422 CL e Puitá INTA CL foram significativamente iguais ao biótipo de arroz-vermelho Catuçaba 1, resistindo a doses de imazethapyr superiores à recomendada em campo para o sistema Clearfield®. Os biótipos Manoel Viana 2, Santa Maria 5 e Pelotas 3 agruparam-se com o cultivar convencional IRGA 417, sendo suscetíveis à dose comercial do herbicida. O biótipo Rio Pardo 1 também é resistente ao herbicida imazethapyr, porém menos resistente que o biótipo Catuçaba 1.To evaluate the susceptibility of biotypes of red rice (Oryza sativa and commercial rice cultivars to the herbicide imazethapyr, a greenhouse assay was conducted with five red rice biotypes (accesses Santa Maria 5, Pelotas 3, Rio Pardo 1, 2 and Manoel Viana Catuçaba 1, two commercial rice cultivars: Clearfield ® (Irga CL 422 and CL Puit INTA, and a conventional cultivar (Irga

Physiological Responses of Some Iranian Grape Cultivars to Iron Chelate Application in Calcareous Soil

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H. Doulati Baneh

2016-07-01

Full Text Available Introduction: Iron chlorosis is considered to be one of the most important nutritional disorders in grapevines, particularly in calcareous soils that under these conditions fruit yield and quality is depressed in the current year and fruit buds poorly develop for following year. Symptoms of iron chlorosis in orchards and vineyards are usually more frequent in spring when shoot growth is rapid and bicarbonate concentration in the soil solution buffers soil pH in the rhizosphere and root apoplast. Several native grapevine (Vitis vinifera L. genotypes, highly appreciated for their organoleptic characteristics and commercial potential, are widely cultivated in Iran. Cultivated plants differ as to their susceptibility to Fe deficiency in calcareous soils, some being poorly affected while others showing severe leaf chlorotic symptoms. Selection and the use of Fe-efficient genotypes is one of the important approaches to prevent this nutritional problem. In this research the response of three local grapevine cultivars was evaluated to iron chelate consumption in a calcareous soil (26% T.N.V. Materials and Methods: Well rooted woody cuttings of three autochthonous varieties (Rasha, Qezel uzum, Keshmeshi Qermez were cultivated in pots filled with a calcareous soil with iron chelate consumption at three rates (0, 7.5 and 15 mg Fe/ Kg soil. The study was conducted with two factors (cultivar and iron chelate and 3 replicates in a factorial arrangement based on randomized complete block design. Plant parameters including vegetative growth, chlorophyll index and leaf area were monitored during the growth period. At the end of the treatment, fresh and dry weight of shoots and roots were determined. The concentrations of macro and micro elements in the leaves were assayed using an atomic absorption and spectrophotometer. One-way-ANOVA was applied comparing the behavior of the cultivars growing. Results and Discussion: Analysis of variance showed that chlorophyll

HIV/AIDS among American Indians/Alaska Natives Living in Montana: A Descriptive Study

Science.gov (United States)

Sondag, K. Ann; Strike, Carrie

2011-01-01

This study examined the epidemiology of HIV among AI/ANs in Montana. Barriers to HIV testing and motivations to test also were explored. Analysis of data revealed that there were no significant changes in regard to HIV/AIDS case rates, demographic characteristics, or risk behaviors of AI/ANs infected with HIV/AIDS since reporting began in 1985.…

Advantageous use of an early Jerusalem artichoke cultivar for the production of ethanol

Energy Technology Data Exchange (ETDEWEB)

Chabbert, N.; Guiraud, J.P.; Arnoux, M.; Galzy, P.

1985-01-01

The use of an early maturing Jerusalem artichoke D19 cultivar combined with that of the late maturing Violet de Rennes cultivar would singificantly prolong the harvest season for the production of ethanol from their tuber extracts using yeast strains with inulinase activity. The D19 cultivar shows a low content of highly polymerized inulin (in early October) and is thus very satisfactory as a fermentation substrate. 9 references.

Crescimento do morangueiro: influência da cultivar e da posição da planta no canteiro Strawberry growth: effect of cultivar and plant position in the bed

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André Samuel Strassburger

2011-02-01

Full Text Available O objetivo deste trabalho foi avaliar o crescimento de cultivares de morangueiro em sistema de cultivo orgânico, observando a influência da posição da planta no canteiro sobre a produção acumulada e a partição de massa seca entre os órgãos aéreos das plantas. O experimento foi realizado na Embrapa Clima Temperado, Estação Experimental Cascata, Pelotas, RS. Os tratamentos constaram da combinação de dois fatores experimentais: cultivar ('Albion', 'Aromas', 'Camarosa' e 'Camino Real' e a posição das plantas no canteiro (Central e Bordadura. O delineamento experimental adotado foi o de blocos completos casualizados com parcelas divididas e quatro repetições. A cultivar 'Camarosa' apresentou maior produção de massa seca dos órgãos aéreos das plantas (62,3; 27,5 e 88,0g planta-1 para folha, coroa e frutos, respectivamente e, juntamente com a 'Aromas', maior produtividade (64,2 e 59,1Mg ha-1, respectivamente. A cultivar 'Aromas' apresentou a maior contribuição proporcional dos frutos para a composição do total de massa seca da planta (60,6% e o maior índice de colheita (88%. A posição das plantas não influenciou o crescimento e a produtividade, indicando ausência de efeito de bordadura para as cultivares 'Albion', 'Aromas', 'Camarosa' e 'Camino Real'.The aim of this research was to evaluate the growth of strawberry cultivars growing in organic crop system observing the influence of plant position in the bed on accumulated dry matter production and its partitioning among the aboveground plant organs. The experiment was conducted in Embrapa Clima Temperado, Estação Experimental Cascata, Pelotas, RS. The treatments were compose by the combination of two experimental factors: cultivar ('Aromas', 'Albion', 'Camarosa' and 'Camino Real' and plant position in the bed (Central and Border. The experimental design used was randomized blocks with split-plots and four replications. 'Camarosa' cultivar presented highest dry mass

'Brasileirinha': cultivar de abóbora (Cucurbita moschata de frutos bicolores com valor ornamental e aptidão para consumo verde 'Brasileirinha': an ornamental bicolor squash (Cucurbita moschata cultivar for immature fruit consumption

Directory of Open Access Journals (Sweden)

Leonardo S Boiteux

2007-03-01

Full Text Available 'Brasileirinha' é uma cultivar de abóbora (Cucurbita moschata com frutos bicolores que foi desenvolvida com o objetivo de disponibilizar um produto diferenciado devido ao aspecto ornamental e a composição nutricional de seus frutos. Esta cultivar foi selecionada na geração F7, sendo obtida via cruzamentos convencionais entre um acesso de frutos bicolores, provavelmente devido à presença de um alelo do gene B, e a cultivar Mocinha (com frutos imaturos de cor verde uniforme. A característica peculiar da cultivar Brasileirinha é a produção de frutos com casca apresentando uma marcante coloração bicolor (coloração amarela na região proximal e verde na posição distal dos frutos. A polpa apresenta coloração amarela-esverdeada em frutos colhidos imaturos e, à medida que o fruto amadurece, intensifica-se uma coloração alaranjada. Beta-caroteno e luteína são os principais carotenóides presentes em frutos para consumo verde. Em frutos em completo estádio de maturação (polpa laranja intensa verifica-se a acumulação de beta-caroteno e alfa-caroteno (precursores da vitamina A em torno de 243 mg g-1. A cultivar Brasileirinha tem apresentado boa resistência de campo a diferentes raças de oídio (Podosphaera xanthii. Esta cultivar é preferencialmente recomendada para consumo como abobrinha verde (no estádio de fruto imaturo e para fins ornamentais (frutos em todos os estádios. Uma opção é o uso de frutos jovens em conservas. A cultivar Brasileirinha é recomendada para plantio em todas as tradicionais regiões produtoras do país. O sistema de produção para esta cultivar tem sido o mesmo adotado para outros tipos de abóboras.'Brasileirinha' is a squash (Cucurbita moschata cultivar developed by Embrapa Vegetable Crops, with a appealing ornamental appearance and carotenoid composition of its fruits might provide raw material for the development of value-added products targeting new market niches. This cultivar is an F7

Wheat cultivar tolerance to boron deficiency and toxicity in nutrient solution

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Furlani Ângela Maria Cangiani

2003-01-01

Full Text Available Field symptoms of open spikelets in wheat were observed in specific cultivars and supposedly related to low B soils and differential B requirement among cultivars. This study aimed to evaluate the response of four wheat (Triticum aestivum L. cultivars, IAC 24, IAC 60, IAC 287 and IAC 289, to increasing B concentrations in nutrient solution. The experiment was set up in a randomized complete block design, with four replicates and five B concentrations (0.0, 0.05, 0.2, 0.8 and 2.0 mg L-1, during 1997/1998, in a greenhouse. Plants were grown to maturity and evaluated for plant height, spike number and length, open spikelet number, grains per spike, plant parts dry matter, B, P, K, Ca and Mg leaf concentrations and total nutrient contents. The visual symptoms of B deficiency consisted of open spikelets, distorted spikes without grains. 'IAC 60' and 'IAC 287' had higher B efficiency, with the highest grain yields in lower B concentrations. The 'IAC 287' and 'IAC 24' were more tolerant to the highest B concentrations. 'IAC 24' required more B for grain production as compared to the other cultivars. The critical leaf B concentration for deficiency was 25 mg kg-1 of dry matter tissue for all cultivars, and for toxicity were: 44 to 45 mg kg-1 for 'IAC 60' and 'IAC 289'; 228 and 318 mg kg-1 for 'IAC 24' and 'IAC 287', respectively. Except for the highest B level in the nutrient solution, the leaf P, K, Ca and Mg concentrations and whole plant contents were in an adequate range in the plants and did not vary among cultivars.

Traditional versus modern apple cultivars – a comparison of juice composition

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Dobrowolska-Iwanek Justyna

2015-06-01

Full Text Available Apples are rich in components that are important for human health, such as polyphenols, organic acids and microelements, but their chemical composition varies with different apple cultivars. We aimed to find out if there is any superiority in traditionally grown apple cultivars in terms of their fruits’ bioactive components content. Juice from two traditionally grown apple cultivars, ‘Mutsu’ and ‘Reinette Simirenko’, was compared to eight popular apple cultivars, ‘Jonagold’, ‘Jonagold Decosta’, ‘Jonica’, ‘Šampion’, ‘Gloster’, ‘Elise’, ‘Golden Delicious’ and ‘Rubin’, and the results are presented. In the study we determined several major and minor nutrient elements, organic acids, phenolic content as well as the antioxidant activity of apple juice made from different cultivars, both modern and traditionally grown. Antioxidant activity determined as FRAP varied from 1.12 (‘Elise’ to 12.10 (‘Jonagold’ mmol Fe dm-3. The concentration of polyphenols fell between 0.16 (‘Elise’ and 1.30 (‘Jonagold’ mg ml-1 gallic acid equivalent. Malic acid concentration was highest in ‘Reinette Simirenko’ and ‘Mutsu’ (6.58 and 5.84 g dm-3, respectively and lowest for ‘Jonagold’ (3.73 g dm-3. The microelement concentrations for the apple cultivar juices were as follows: 8-24 mg dm-3 for Na, 567-1022 mg dm-3 for K, 26.9-59.4 mg dm-3 for Mg and 0.105-0.201 mg dm-3 for Zn. Statistical analysis confirmed a highly positive correlation between total polyphenols and antioxidant activity (r = 0.98, p = 0.001.

Incidencia de las diferencias entre cultivares de trigo en la cantidad de fósforo exportada en los granos Incidence of the differences in the amount of P exported between wheat cultivars

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L. Lázaro

2012-06-01

Full Text Available El fósforo (P es uno de los macronutrientes menos disponible en el suelo. Se predijo para los próximos años un incremento en el uso de fertilizantes fosforados debido al crecimiento de la demanda de alimentos. Una de las prácticas que puede contribuir a un uso más sustentable de los fertilizantes fosforados es la selección de cultivares con baja concentración de P en los granos. Para saber si existen diferencias en la concentración de P en los cultivares de trigo utilizados actualmente en la Argentina, se compararon 66 cultivares durante las campañas 2008/09 y 2009/10, en Balcarce. Hubo diferencias entre cultivares en la concentración de P, el rendimiento y la exportación de P (los rangos fueron 0,22 - 0,38%; 5170 - 9740 kg/ha y 13 - 29 kg P/ha, para concentración de P en grano, rendimiento y P exportado respectivamente. Para el productor las implicancias económicas de utilizar cultivares con menor concentración de P no resultan relevantes, ya que sólo representan diferencias en el costo menores al 2% del rendimiento. Sin embargo, a largo plazo y en el país, estas diferencias cobran una dimensión considerable.Phosphorus (P is one of the least available macronutrients in soil and a rise in the use of phosphate fertilizers was predicted due to the growing food demand. A practice that can contribute to a more efficient use of P fertilizers and reduce soil P extraction is the selection of cultivars with low concentration of P in grains. In order to find out if there are differences in P concentration in wheat cultivars that are currently used in Argentina, 66 cultivars, grouped in two sowing dates, during 2008/09 and 2009/10, were compared in Balcarce, under potential conditions. There were differences between cultivars in P concentration, P exportation and yield (ranges were: 0.22 - 0.38%; 5170 - 9740 kg/ha and 13 - 29 kg P/ha for P concentration in grains, yield and P export, respectively. However, when considering the economic

Epistatic association mapping in homozygous crop cultivars.

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Hai-Yan Lü

Full Text Available The genetic dissection of complex traits plays a crucial role in crop breeding. However, genetic analysis and crop breeding have heretofore been performed separately. In this study, we designed a new approach that integrates epistatic association analysis in crop cultivars with breeding by design. First, we proposed an epistatic association mapping (EAM approach in homozygous crop cultivars. The phenotypic values of complex traits, along with molecular marker information, were used to perform EAM. In our EAM, all the main-effect quantitative trait loci (QTLs, environmental effects, QTL-by-environment interactions and QTL-by-QTL interactions were included in a full model and estimated by empirical Bayes approach. A series of Monte Carlo simulations was performed to confirm the reliability of the new method. Next, the information from all detected QTLs was used to mine novel alleles for each locus and to design elite cross combination. Finally, the new approach was adopted to dissect the genetic basis of seed length in 215 soybean cultivars obtained, by stratified random sampling, from 6 geographic ecotypes in China. As a result, 19 main-effect QTLs and 3 epistatic QTLs were identified, more than 10 novel alleles were mined and 3 elite parental combinations, such as Daqingdou and Zhengzhou790034, were predicted.

(Cucumis melo L.) cultivars to soil-borne plant pathogenic fungi in Iran

African Journals Online (AJOL)

ajl11

2012-10-30

Oct 30, 2012 ... resistance of melon cultivars to three important soil-borne plant pathogens found worldwide. Key words: Melon ... use of cultivars resistant to plant diseases is one of the ..... emerging disease of melons worldwide. Plant Dis.

Performance of maize cultivars for fodder production under rainfed conditions of pothohar tract

International Nuclear Information System (INIS)

Gurmani, Z.A.; Zahid, M.S.

2008-01-01

For finding the forage yield potential of eight maize cultivars, the cultivars were sown in the month of July during both consecutive years 2001 and 2002 and harvested in the month of September in both the years. The cultivars differed significantly from one another with regard to plant height, number of leaves per tiller, number of plants per row, leaf area per plant, green fodder and dry matter yield. The cultivar, Akbar produced taller plants, with the largest leaf area among and more number of leave per tiller, and consequently yielded highest amount of green as well as dry matter among all the varieties under the rainfed climatic conditions of Pothohar tract of Pakistan. (author)

Quality Parameters of Six Cultivars of Blueberry Using Computer Vision

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Silvia Matiacevich

2013-01-01

Full Text Available Background. Blueberries are considered an important source of health benefits. This work studied six blueberry cultivars: “Duke,” “Brigitta”, “Elliott”, “Centurion”, “Star,” and “Jewel”, measuring quality parameters such as °Brix, pH, moisture content using standard techniques and shape, color, and fungal presence obtained by computer vision. The storage conditions were time (0–21 days, temperature (4 and 15°C, and relative humidity (75 and 90%. Results. Significant differences (P<0.05 were detected between fresh cultivars in pH, °Brix, shape, and color. However, the main parameters which changed depending on storage conditions, increasing at higher temperature, were color (from blue to red and fungal presence (from 0 to 15%, both detected using computer vision, which is important to determine a shelf life of 14 days for all cultivars. Similar behavior during storage was obtained for all cultivars. Conclusion. Computer vision proved to be a reliable and simple method to objectively determine blueberry decay during storage that can be used as an alternative approach to currently used subjective measurements.

Caracterização química e perfil de ácidos graxos em cultivares de nogueira-macadâmia Chemical characterization and fatty acids profile in macadamia walnut cultivars

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Luana Aparecida Castilho Maro

2012-12-01

Full Text Available A nogueira-macadâmia produz nozes de alto valor no mercado internacional, devido às características nutricionais de suas amêndoas, consideradas uma excelente fonte energética. O objetivo do trabalho foi realizar a caracterização química e o perfil de ácidos graxos em 22 cultivares de nogueira-macadâmia. As cultivares utilizadas foram: 'Edson', 'HAES 788 (Pahala', 'Beaumont 695', 'Flor Rosa', 'IAC 9-20X', 'HAES 344 (Kau', 'Cannon', 'IAC 9-20', 'C160', 'HAES 849', 'IAC 4-12B', 'HAES 816', 'Doroti', '791 Fuji', 'IAC 4-20 (Keaumi', 'HAES 814', 'HAES 722', 'África', 'IAC Campinas-B', 'HAES 246 (Keauhou', 'HAES 741 (Mauka' e 'HAES 842'. Foram quantificados a umidade, extrato etéreo, proteína, cinza e fibra bruta, além disso, extração de óleo e o perfil de ácidos graxos. A maior quantidade de proteína foi registrada na cultivar 'IAC 9-20X'. Quanto ao teor de fibra bruta, as maiores porcentagens foram observadas nas cultivares 'HAES 741' e 'HAES 842'. As amêndoas de todas as cultivares de nogueira-macadâmia analisadas possuem ácidos palmítico e oleico.The walnuts macadamia have a high value on the international market due to their almonds nutritional characteristics considered to be an excellent source of energy. The aim of this work was to evaluate the chemical composition and fatty acid profile of 22 cultivars of almond walnut macadamia. The cultivars tested were: 'Edson', 'HAES 788 (Pahala', 'Beaumont 695', 'Flor Rosa', 'IAC 9-20X', 'HAES 344 (Kau', 'Cannon', 'IAC 9-20', 'C160', 'HAES 849', 'IAC 4-12B', 'HAES 816', 'Doroti', '791 Fuji', 'IAC 4-20 (Keaumi', 'HAES 814', 'HAES 722', 'África', 'IAC Campinas-B', 'HAES 246 (Keauhou', 'HAES 741 (Mauka' and 'HAES 842'. Moisture, fat, protein, ash and crude fiber were analyzed and also oil extraction and fatty acid profile. The highest amount of protein was recorded in 'IAC 9-20X'. The highest percentages of crude fiber content were observed in cultivars 'HAES 741' and 'HAES 842'. The

Germination and Biochemical Responses to Alkalinity Stress in Two Sesame Cultivars

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Mahdavi Batool

2016-06-01

Full Text Available In this study, the effect of different alkaline concentrations (0, 10, 20, 30, 40, 50, 60 mM on germination and biochemical characteristics of the two sesame (Sesamum indicum L. cultivares (Dashtestan and GL-13 which are registered cultivars of Iran were investigated. The experiment was carried out in a completely randomized design with three replications. Results showed that, germination percentage, germination rate, shoot length and dry weight, root length and dry weight and K+ content decreased, whereas, malondialdehyde (MDA, proline, total soluble sugars and Na+ contents increased with increasing alkalinity stress. GL-13 cultivar had the least root and shoot length, proline and K+ content than Dashtestan.

Blueberry Cultivars Differ in Susceptibility to the Elephant Weevil, Orthorhinus cylindrirostris (Coleoptera: Curculionidae).

Science.gov (United States)

Murdoch, Gregory; Clift, Alan D; Mansfield, Sarah

2017-10-01

The accumulated damage from elephant weevil larvae, Orthorhinus cylindrirostris (F.) (Coleoptera: Curculionidae), reduces blueberry yield and shortens the productive lifespan of blueberry plants by several years. Selective breeding to develop pest-resistant blueberry cultivars is a possible control option, but the relationship between O. cylindrirostris populations, plant damage, and blueberry yield has not been described. A field survey of 17 blueberry cultivars was conducted on a commercial farm to measure O. cylindrirostris populations (emergence holes and adult numbers) and yield from plants of different ages (2-12 yr). Blueberry plants accumulated damage over time, that is, older plants tended to have more O. cylindrirostris emergence holes than younger plants. All cultivars received some level of O. cylindrirostris attack but this did not always lead to yield losses. Newer cultivars that have been in production since 2000 were less susceptible to O. cylindrirostris than older cultivars. Removal of highly susceptible cultivars from commercial blueberry farms may reduce O. cylindrirostris populations. There is potential for selective breeding to increase plant resistance to O. cylindrirostris if the specific resistance mechanisms can be identified in blueberry. © The Author 2017. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

Authenticity of old cultivars in genebank collections: a case study on lettuce

NARCIS (Netherlands)

Wouw, van de M.J.; Treuren, van R.; Hintum, van T.J.L.

2011-01-01

Ex situ collections in genebanks conserve many old cultivars that had disappeared from mainstream agriculture before modern genebanks were established. The collections incorporated cultivars from many sources, such as botanical gardens and working collections, sometimes with little further

Antioxidant and carbohydrate changes of two pomegranate cultivars under deficit irrigation stress

International Nuclear Information System (INIS)

Ebtedaie, M.; Shekafandeh, A.

2016-01-01

The purpose of this study was to evaluate the biochemical responses to water stress tolerance of two pomegranate cultivars, ‘Rabbab’ and ‘Shishehgap’. After the establishment of rooted stem cuttings of both cultivars under greenhouse conditions, they were treated with four levels of deficit irrigations (100%, 75%, 50% and 25% of field capacity) in a completely randomized design with four replications. The results showed a significant difference between the two cultivars regarding antioxidant enzymes activities. In both cultivars, the water stress increased the activity of superoxide dismutase, catalase and ascorbate peroxidase. However, at high water deficit (25% field capacity, FC), ‘Rabbab’ showed significantly higher enzyme activity than ‘Shishehgap’. In each level of irrigation, there were not considerable differences in peroxidase activity between the two cultivars. An increment of 162% and 65.5% in soluble sugar was gained at 50% FC in ‘Rabbab’ and ‘Shishehgap’, respectively. ‘Rabbab’ showed better growth performance in each level of irrigation than ‘Shishehgap’. Therefore, it can be concluded that 'Rabbab', with lesser decline in leaf relative water content (RWC), a strong antioxidant system and accumulation of more soluble carbohydrates, can resist higher water stress than 'Shishehgap'.