Researchers studied how different maize hybrids perform in terms of grain yield and other important traits. They used a Line × Tester mating design to create 22 hybrids and analyzed their combining ability and gene action. They found that non-additive gene action was dominant for all traits. Some parent plants were identified as good general combiners for yield improvement. One hybrid, N 14 × UMI 1200-7-26-1-6-1, showed high heterosis percentage and good performance for grain yield and other traits, making it a promising candidate for commercial seed production.