Yield and Yield Characteristics of Selected Grain Maize Varieties Grown as a Main Crop in the Amik Plain

This study was conducted to determine the yield and yield components of selected grain maize varieties under main crop conditions in the Amik Plain. Six widely preferred maize varieties in the region (AGM 1506, AGM 6819, P1541, P1551, P1884, and P2105) were used as experimental materials. The trial was established in 2023 using a randomized complete block design with three replications. In order to evaluate yield and yield characteristics, plant height (BB), stem diameter (SÇ), leaf ratio (YO), stem ratio (SO), cob ratio (KO), thousand-kernel weight (BTA), hectoliter weight (HA), grain yield (SY), and harvest index (Hİ) were examined. Among the assessed characteristics, BB, SO, BTA, HA, TV, and Hİ were significantly influenced by variety differences (P < 0.05), while SÇ, YO, and KO were not affected. Principal component analysis revealed that each variety exhibited distinct results across nearly all measured traits. Overall, AGM 6919 demonstrated superior performance in terms of yield. To provide a conclusive recommendation, a second year of similar experimentation is needed.