Unique gene combinations control tropical maize response to day lengths

Tropical maize proves to be a valuable genetic resource, containing genetics not found in USA Corn Belt maize. Most tropical maize varieties respond to the long summer day lengths that occur in U.S. growing regions by flowering late. This delayed flowering response results in poor yields, effectively trapping the useful genes and hindering their incorporation into maize hybrids adapted to the most productive corn growing regions.

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