Evaluation of a White High-Amylose Corn Population After Two Cycles of Recurrent Selection

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Brad Schottel.
Dr. Mark Campbell, Faculty Mentor, 2000.

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Recurrent selection is a breeding method used to improve a trait in a population over a number of years. The corn population known as Hsyn 99w ae is a synthetic variety that possess white grain and is homozygous for the endosperm mutation known as amylose-extender (ae). The population was subjected to two cycles mass selection in which grain samples were selected for starch amylose content. For two cycles a number of selfed ears were analyzed for starch amylose content. The objective of the study was to determine if any changes in average amylose content and the dispersion of these values occurred over the two cycles of selection.