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 22 for “"Soybean breeding"”.
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The use of tissue culture in soybean breeding
Call number: LD2668 .T4 AGRN 1987 W43
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Improvement of soybean breeding via high throughput phenotyping and disease resistance
… High Throughput Phenotyping Platform to Improve Soybean Breeding Efficiency Advances in phenotyping technology are critical to ensure the genetic improvement of crops meet future global demands for food and fuel. Field-based phenotyping platforms are being evaluated for their ability to deliver …
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Agrobacterium-Mediated Transformation of Soybean: Test of Selectable Marker Genes
Soybean (Glycine max) is one of the most important crops around the world. Genetic modification of soybean offers an alternative way to augment the traditional soybean breeding approaches. Soybean transformation still remains a great challenge. To increase soybean transformation efficiency, three …
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Optimizing GWS and GWAS in crop breeding
… the full dataset by the number of stages of a breeding program (clonal evaluation trial – CET, preliminary yield trial – PYT, advanced yield trial – AYT, and uniform yield trial – UYT): one stage (CET), two stages (CET and PYT), three stages (CET, PYT and AYT) and four stages (CET, PYT, AYT and …
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Breeding Soybean [Glycine max (L) Merr.] Under Reduced Irrigation
<p>Soybean [Glycine max (L) Merr.], a legume species native to East Asia in the Fabaceae family, ranks among the most important food crops in the world. It is widely grown and known for its high protein and oil concentration. Soybean is valuable because its seeds have multiple applications in food, …
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Improving Vegetable Soybean Production Through Investigating the Impact of Genotype and Environmental Factors on Germination and Emergence
Vegetable soybean, also known as edamame, has become increasingly popular in the United States due to its excellent nutrition and health benefits. This rising demand has sparked the interest of local farmers in growing edamame. However, a significant problem in edamame production is the poor …
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Molecular approaches to improve soybean plant architecture and seed composition
Soybean is an important agronomic crop which has been widely used as a vegetable oil as well as a source of protein for animals and humans. Among various desired traits for genetic improvement to improve the value of soybean, yield and seed composition deserve attention considering its …
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Development of Dispersive and Fourier Transform Near Infrared Spectroscopy Methodology for Food and Edible Seed Analysis
… and chemical analysis in food production. Soybean breeding programs require rapid and accurate composition determinations for large populations through a suitable technique, such as Near Infrared (NIR). Novel calibrations for soy and other health foods were developed with Fourier Transform …
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Effects of selective genetic introgression from wild soybean to soybean
Commercial soybean [Glycine max (L.) Merr.] breeding in the U.S. currently relies on a narrow genetic base in which more than half of the genetic contribution, calculated by pedigree analysis, comes from only 5 ancestral lines. For decades, but more intensely in recent years, efforts have been made …
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QTL discovery for Japanese beetle resistance in aphid-resistant germplasm, stacking aphid-resistant genes, and metabolite profiling studies in soybean
… institutions and seed companies incorporate soybean aphid (<Aphis glycines> Matsumura) resistance genes into soybean [<Glycine max >(L.) Merr.] cultivars, it is important to retain resistance to insect defoliators. In order to improve MSU aphid-resistant germplasm for resistance to Japanese …
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Analyses of a genic male-sterile mutant in soybean
<p>A new genic male-sterile mutant in soybean was characterized genetically, developmentally, and molecularly. This mutant is controlled by a single recessive gene, which is not allelic to six previously identified soybean genic male-sterile mutants: ms1, ms2, ms3, ms4, ms5, or ms6. No linkage was …
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Soybean expansion in Brazil: A quantitative assessment of past technological and environmental changes and implications for future climate change
Brazil is today the world's second largest soybean producer, and the crop is cultivated throughout the country. However, this was not always the case. The most productive soybean regions of today were deemed unsuitable for soybean planting until the 1970's, and the crop was limited to southern …
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Selection of Drought-Tolerant Soybean Lines Using a Field Screening Method and Identification of QTLs for Slow Wilting and Nitrogen Fixation Associated With Drought-Tolerance
<p>Drought causes significant yield reductions in soybean. The development of drought-tolerant cultivars is an effective alternative to overcome this abiotic stress. Slow wilting, prolonged nitrogen fixation, and minimal yield reduction under water stress play an important role in evaluating …
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Soybean and Phialophora gregata interactions: Implications for evaluating resistance to brown stem rot of soybean
Resistance of soybean to brown stem rot (BSR), caused by Phialophora gregata (Allington and Chamberlain) W. Gams, has become an important aspect of soybean breeding programs in the north central United States. The discovery of variability of P. gregata isolates from different states has increased …
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Genetics of Physiological Traits Associated with Drought Tolerance in Soybean (Glycine max)
<p>Soybean (Glycine max L.) is one of the major row crops in the United States, and its production is often limited by drought stress. Physiological traits from exotic germplasm that confer drought tolerance may be useful in improving commercial soybean production. For example, carbon isotope ratio …
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Evaluation and Identification of Soybean Aphid Resistance Sources and Mapping of Soybean Aphid Resistance Loci in Early Maturing Soybean Germplasm Accessions
<p>Soybean aphid (Aphis glycines Matsumura) has been a major pest of soybean [Glycine max (L.) Merr.] in North America particularly in the northern United States and three Canadian provinces. At least four biotypes of soybean aphid have been confirmed in the United States. Identification of soybean …
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Overcoming the domestication bottleneck in soybean: mapping domestication traits and using wild soybean to improve diversity
QTL Mapping of Domestication-Related Traits Soybean [Glycine max (L.) Merr.] was domesticated in East Asia from the wild progenitor Glycine soja. The domestication process led to many distinct morphological changes that adapt it to cultivation. These include larger seeds, erect growth, larger stem …
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Evaluation of Pythium root rot and damping off resistance in the ancestral lines of North American soybean cultivars and chemical control of the active ingredient ethaboxam in seed treatments
… Pythium species on the North American Ancestral Soybean Lines A trend towards planting soybean (Glycine max (L.) Merrill) earlier in the growing season has made seedling diseases more prominent. A survey of biotic causes of yield loss between 2006 and 2009 rated seedling diseases second in only …
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Physiological mechanisms of yield improvement in historical U.S. soybean germplasm
Soybean (Glycine max Merr.) is the world’s most widely grown leguminous crop and an important source of protein and oil for food and feed. Soybean yields have increased substantially throughout the past century with yield gains widely attributed to genetic advances and improved cultivars, as well …
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Mapping of brown stem rot resistance, genetic yield gains, and yield impact of soybean cyst nematode
… from Five Brown Stem Rot Resistance Sources in Soybean Brown stem rot (BSR) of soybean [Glycine max (L.) Merr.] caused by Cadophora gregata (Allington & D.W. Chamb.) T.C. Harr. & McNew, can be controlled effectively with genetic host resistance. Three BSR resistance genes Rbs1, Rbs2, and Rbs3 …
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