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Evaluation Of Genetic Gain For Dynamic Leaf Traits In Maize Using Field Spectroscopy, Jonathan Luetchens
Evaluation Of Genetic Gain For Dynamic Leaf Traits In Maize Using Field Spectroscopy, Jonathan Luetchens
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
Rapid introduction of cheap and precise genotyping technology has created a void between genotypes and phenotypes in maize breeding. While detailed genetic information is easily accessible, the data are lacking robust phenotypes to be used in mapping studies like genome-wide association. As a result, high-throughput phenotyping tools are necessary to rigorously characterize specific traits. In this study, agronomic traits and an active spectrometer system were used to monitor 36 era hybrids – popular commercial maize hybrids grown from 1936 to 2012 – to discover how various traits have changed over time. In conjunction with increased grain yield of 76 kg/ha …