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 11 of 11 for “"Exotic Germplasm"”.
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Incorporation of Exotic Germplasm Into Adapted Maize Synthetics to Improve Grain Yield and Multiple Leaf Blight Resistance (Selection Response, Zea Mays, Quantitative Genetics, Corn)
… L.) populations containing 0, 25, 50, and 100% exotic germplasm, 80 to 100 random S(,1) families from each population, and the populations per se were evaluated for grain yield and aggregate leaf disease resistance. One cycle of divergent S(,1) family selection for each trait was conducted in …
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Using spontaneous haploid genome doubling to access favorable alleles in exotic maize (Zea mays L.) germplasm
… it has been accompanied by narrowing its germplasm base. Breeding from exotic maize germplasm, such as BS39, provides a unique opportunity for broadening the genetic base of US Corn Belt germplasm. The in vivo doubled haploid (DH) technology is widely used into exotic germplasms because it …
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Identification and Utilization of Diverse Germplasm for Soybean Yield Improvement
… lines derived from crosses of diverse germplasm with adapted cultivars were evaluated for yield and genetic diversity. Experimental lines were identified that were higher yielding than their adapted parents. The lines also maintained their diversity from the ancestors and non-parental …
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Heterosis in compositional, physical, and wet-milling characteristics of hybrids from exotic introgressed by adapted inbred lines in corn
… inbred lines and rarely have corn lines from exotic germplasm been crossed with elite inbreds to develop new and useful breeding lines. Studying the physical, compositional, and wet-milling properties of new inbred lines and their hybrids, as well as the proximate composition of recovered …
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Physiology Characterization of Nitrogen Use in Maize: Opportunities for Improvement
… in NUE for maize; and (3) Introgression of exotic germplasm, nearly always improved NUE of the hybrids, which was largely due to improved uptake efficiency. Overall, results presented in this work, provide a better understanding on how N is utilized for yield generation in the maize plant, …
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Combining Ability for Ear Prolificacy and Response of Prolific Maize (Zea May L.) Hybrids to Low Nitrogen Stress
… designed to estimate combining ability in maize. Exotic germplasm from the International Maize and Wheat Improvement Center and the Institute of Tropical Agriculture as well as the local germplasm from the Agricultural Research Council was used in the study to generate crosses. One hundred and two …
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Recombinant Chromosome Substitution Lines as a Source of Genetic Variation for Drought Stress Tolerance in Barley
… study has highlighted the role of exotic germplasm to contribute novel allelic variation by using an optimised experimental approach focused on an exotic genetic library. The results obtained constitute a step forward to the development of more tolerant and resilient varieties. …
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Genetics of Physiological Traits Associated with Drought Tolerance in Soybean (Glycine max)
… 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 (δ13C) is positively correlated with water use efficiency (WUE), and nitrogen isotope ratio (δ15N) is …
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Analysis of anther-derived plants of Solanum phureja: variation in ploidy, photosynthetic efficiency and structure of the nuclear genome
… the present study is a part, is to introduce exotic germplasm into existing cultivars of Solanum tuberosum through· 4x X 2x crosses using the South American diploid potato species Solanum phureja as the pollen parent. The first phase of this program includes the 'reconstruction' of a highly …
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Confirming QTL for seed yield from exotic soybean germplasm
… confirm putative QTL for seed yield derived from Exotic germplasm that were identified in previous QTL mapping studies. One BC1F9 confirmation population was developed from the cross Kenwood x LG94-1713 to test the QTL associated with SSR loci Satt405 (linkage group (LG), J chromosome (chr) 16) …
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Utilizing maize genomics for pre-breeding insights
… when used for classification of tropical germplasm. Yg3-N1582, a rare dominant mutant obtained from ethyl methanesulfonate (EMS) mutagenesis, has not been previously mapped. Phenotypically, Yg3-N1582 has yellow color expression at coleoptile emergence that does not persist beyond the …