Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 69 for “"seed weight"”.
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The use of Cicer reticulatum L. for genetic improvement of cultivated chickpea
… was observed for different traits such as seed weight per plant, thousand seed weight, number of seeds per plant, and biomass. Correlation analysis showed significant positive correlation of seed yield with the yield components including seed weight per plant (r = 0.99), number of seeds per …
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Microsatellite polymorphism, orthologous evolution and molecular marker analysis of seed quality traits in soybean (Glycine max L. Merr.)
… quantitative trait loci (QTL) controlling seed weight in soybean, and to extend reports of orthologous seed weight genes in the genus Vigna to the genus Glycine by "comparative QTL mapping". DNA samples from 150 F₂ individuals from an interspecific soybean cross were analyzed with 91 …
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Selection for partial resistance to crown rust in oat
… resistance to crown rust, grain yield and seed weight in oat population, and to estimate heritabilities for area under disease progress curve (AUDPC) and genetic correlations between AUDPC and agronomic traits in both crown rust-inoculated and fungicide-treated plots. A single cycle of …
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Bacterial Blight of Soybean: Survival, Yield Reduction, and Disease Progress Model
… bacterial blight severity and yield and 300-seed weight of soybean cultivars Wells II and Williams 79 was studied in 1981 and 1982. Inoculations at five different growth stages of soybean plants resulted in bacterial blight development on different levels of plant canopy. Decrease in disease …
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Physiological responses of common bean(Phaseolus vulgaris L.)genotypes to water stress
… grain yield, number of pods per plant, hundred seed weight, number of seeds per pod and days to fifty percent flowering for the three water regimes. Grain yield in normally irrigated treatment (2.19 ton ha-1) was 60 % higher than in 50 % water stress treatment (0.87 ton ha-1), while in the 75 % …
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Physiological responses of common bean(Phaseolus vulgaris L.)genotypes to water stress
… grain yield, number of pods per plant, hundred seed weight, number of seeds per pod and days to fifty percent flowering for the three water regimes. Grain yield in normally irrigated treatment (2.19 ton ha-1) was 60 % higher than in 50 % water stress treatment (0.87 ton ha-1), while in the 75 % …
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Molecular Analyses of the Soybean Glabrous Mutation (P1) and of Transgenic Lines Designed to Modify Seed Composition
… expression of the PDHK gene(s) in soybean seeds specifically by introduction of a PDHK RNAi construct transgenically into soybean. The insertion of the PDHK RNAi construct was confirmed in the soybean sublines by PCR and Southern blot analysis. The dry seeds from the transgenic lines were …
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The effect of carbon dioxide, temperature and water stress on growth, yield and seed quality of sunflower (Helianthus Annuus L.)
… Africa and the region's most important oilseed crop. Its low cost of production and capacity to yield consistently in adverse weather conditions makes it a highly desirable crop for farmers to cultivate. However, with climate change, crop productivity will be difficult to maintain. Not only …
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LOW-PHYTATE GRAINS TO ENHANCE PHOSPHORUS SUSTAINABILITY IN AGRICULTURE: GENETIC ANALYSIS ON THE LOW PHYTIC ACID1-1 MAIZE MUTANT
… issues as a non-renewable resource. In plant seeds, the main reserve of phosphorus is phytic acid, a strong anti-nutritional factor for monogastrics and a pollutant of cultivated lands. The reduction of phytic acid in cereal seeds has become a major challenge in breeding programs to increase …
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Examining Hessian fly (Mayetiola destructor) management concepts and quantifying the physiological impact of hessian fly feeding on post-vernalization selected cultivars of winter wheat in Kansas
… wheat cultivars has been adapted to protect seedling plants from HF larval feeding in the fall. However, it is unknown if these cultivars are still providing protection after winter vernalization. Greenhouse trials indicated that ‘Armour’, a cultivar considered intermediately resistant, …
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Effects of simulated drift of glyphosate, imazethapyr, glufosinate, and imazamox to non-transgenic rice
… glyphosate applied at boot. Primary crop rice seed germination was reduced by glyphosate. Glyphosate reduced ratoon crop rice seed weight; however, ratoon crop seed germination was not reduced. Imazethapyr reduced plant height and primary and total crop yield, with the greatest reduction in …
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Kentucky Bluegrass Blend Ecology
Seed size and germination differed between varieties and seedlots within varieties. Blending seed using seed weight resulted in an actual composition similar to the intended composition. Including a susceptible variety in a blend resulted in more severe rust and powdery mildew than when not …
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genetic Attributes of Bambara Groundnut[Voandzeia subterranea (L)] Thouars
… accessions were positive and significant for 100 seed weight, number of pods per plant, number of branches per plant, and plant height. This indicated that these characters could be used as selection criteria for grain yield. Heritability estimates for 100 seed weight was the best among the …
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genetic Attributes of Bambara Groundnut[Voandzeia subterranea (L)] Thouars
… accessions were positive and significant for 100 seed weight, number of pods per plant, number of branches per plant, and plant height. This indicated that these characters could be used as selection criteria for grain yield. Heritability estimates for 100 seed weight was the best among the …
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Epidemiology of Soybean Pod and Stem Blight
… traits: plant height, lodging, yields, and seed quality of soybeans. Two soybean cultivars, Beeson and Woodworth, were used. Only in 1978, Phomopsis sp. infection on stems and pods was significantly greater in the inoculated plots when compared with the check plots. Both stem and pod …
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Assessing the Distribution and Impact of <I>Bean pod mottle virus</I> (BPMV) as a Re-emerging Virus, and <I>Soybean mosaic virus </I>(SMV) in Soybean Grown in Virginia
… Merrill), causing quality and yield loss due to seed coat mottling and seed weight reduction. Although BPMV has been known in Virginia since 1958 and has always been regarded as causing negligible losses, its impact is changing as BPMV incidence has increased in many soybean growing areas of …
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Screening of indigenous forage legumes as potential fodder crops and protein source for livestock in Central Namibia
… up to 80 kg P/ha increased biomass and 100-seed weight; responses for O. burchellii were however inconsistent. The legumes differed (P < 0.05) in biomass yield; least square means (tons/ha) were: L. purpureus (8.9 ± 0.3), V. lobatifolia (1.5 ± 0.4), O. burchellii (2.5 ± 0.3), V. unguiculata …
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The ecology of Brassica napus
… are strong competitors and produce large seed yields, however seed shattering during harvest creates large volunteer seedbanks. The segregation of hybrid trait and changes in variability of traits may allow successive generations of volunteer B. napus weeds to display different levels of …
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Isozyme variation within the Fraser fir population on Mt. Rogers, Virginia
… significant difference among subpopulations for seed weight and germination value as well as a slight, yet significant, correlation between seed weight and elevation, germination value and elevation, and germination value and aspect. Spatial autocorrelation analysis, Wright's F-statistics, Nei's …
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