Performance of Corn Hybrids with Contrasting Maturity in Northeastern Kansas

Corn (Zea mays L.) hybrid selection is one of the most important agricultural management decisions made by farmers. Both genetic yield potential and adaptation to local environment vary widely across corn hybrids, have a direct impact on input costs. This study compared performance hybrids with contrasting comparative relative maturity (CRM, referring their growth cycle), evaluate differences in crop phenology, grain its components—grain number weight. The field experiment was conducted during 2022 growing season Manhattan, KS (U.S.), testing five commercial CRM under rainfed conditions. overall length (days) cycle all ranged from 92 120 days, 102 146 bu/a. variation mainly explained