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 7 of 7 for “"gene pyramiding"”.
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Quantitative Trait Loci for Resistance to Fusarium Head Blight in the Hulless Winter Barley Cultivar Eve
… resistant cultivars that are developed through gene pyramiding and incorporation of various sources of resistance. Resistance identified in winter barley cultivar Eve has been identified in Virginia Tech's Small Grains Breeding Program. The objectives of this study are to validate resistance and …
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Interactions of soybean Rsv genes and Soybean mosaic virus
… to SMV is controlled by single dominant genes at three distinct loci, Rsv1, Rsv3 and Rsv4. The mechanisms of resistance at the Rsv3 and Rsv4 loci were investigated by tracking virus accumulation and movement over time using leaf immunoprints. The mechanisms of Rsv3 resistance include …
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Genetic Resistance to the Downy Mildew Pathogen and Breeding towards Durable Disease Management in Spinach
… this study was designed to explore the genetic components for establishing the basis of durable disease resistance development against the downy mildew pathogen (P. effusa 13) in spinach, through the use of various genome engineering approaches.</p> <p>Our results have led (Chapter 2) to …
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Selection for Run1-Ren1 Dihybrid Grapevines Using Microsatellite Markers
… for a considerable cost for grape growers. Genetically controlled resistance is a promising alternative to the recurrent application of chemicals.The inheritance of Ren1 and Run1 powdery mildew resistance (R) genes were tracked in a grapevine hybrid family using flanking microsatellite …
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Cistatinas de cebada: proteínas de defensa contra artrópodos
… por la actividad de los artrópodos aunque, en general, todas son mejores inhibidores de su actividad tipo catepsina L. La cistatina HvCPI-6 ha resultado ser el inhibidor más potente y ha sido seleccionado para realizar ensayos in vivo con 3 de los artrópodos anteriormente mencionados: T. …
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Towards the exploitation of the American hazelnut (Corylus americana)
… broad adaptability to the Midwest U.S. requires genetic improvement with respective to target environments. This dissertation begins by summarizing literature on the genetic improvement of underutilized temperate U.S. tree crops and their wild relatives, with emphasis on their strategic …
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Towards Cloning the Leaf Rust Resistance Gene Rph5
… been reported in susceptible cultivars. The Rph5 gene confers resistance to the most prevalent races (8 and 30) of barley leaf rust in the United States. Therefore, the molecular mapping of Rph5 is of great interest. Genetic studies were performed by analysis of 93 and 91 F2 plants derived from …