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 6 of 6 for “"variety trials"”.
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Statistical methods and models for analyzing sugarcane (Saccharum species hybrids) plant breeding data
… subjective and inefficient. Data from advanced variety trials (yield, quality and agronomic traits) are collected over several crop-years to determine yield potential and ratooning ability of genotypes follow a multivariate repeated measures structure. In Louisiana, the sugarcane borer and …
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Company participation in soybean variety testing programs in Illinois
This Thesis was approved for publication on 2022-07-05 at 13:57.
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The Influence of Chilling and Heat Accumulation on Bloom Timing, Bloom Length and Crop Yield in Almonds (Prunus dulcis (Mill.))
… reports on the 1993-2006 Regional Almond Variety Trials in Butte, San Joaquin and Kern Counties. Temperature pattern models in the form of Chill Hours (Chill Hour Model), Chill Units (Chill Unit Model), Chill Portions (Chill Portion Model) and Growing Degree Hours (GDH°) (Heat Model) prior …
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Characterization of the Relationships between Soybean Yield, Trifoliolate Leaf Chloride Concentration, and Cultivar Chloride Inclusion/Exclusion Rating
… were collected during reproductive growth from variety trials and analyzed for Cl concentration. The research verified that the yield of Cl-includer cultivars is reduced more (4-20%) than Cl-excluder cultivars (0-8%) in high Cl environments. Relative grain yield declined linearly for cultivars …
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Essays on innovation in the U.S. corn and soybean seeds
… pesticide use and genetically engineered (GE) variety adoption. The first essay quantifies the economic value of seed traits resistant to soybean cyst nematodes (SCNs) and an associated agricultural extension, Iowa State University SCN-resistant Soybean Variety Trials, that is designed to …
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The critical seed-filling period duration is dependent on soybean planting date and cultivar maturity selection: implications for crop management
… with other management factors. In 58 on-farm trials in Illinois and Indiana in 2011 and 2012, our objective was to examine if soybean seed treatments (fungicide + insecticide + rhizobia inoculant) and cultivar maturity selection interact with planting date. We found that using seed treatments …