ABSTRACT

This study was aimed to produce and evaluate 30 triple cross hybrids generated by crossing ten single hybrids with five genetically diverse inbred lines. A field experiment was conducted using five inbred lines of maize: (1) NADH 102, (2) NASA 2022, (3) NAEL 2022, (4) NA 9928 E, and (5) NADH 2006. In the first spring season 2022, the genetic materials used by half-diallel crosses program to produce (10) single crosses. In the fall season, parental inbred lines and single crosses were subjected to a triple hybridization program. The results of this study revealed significant differences among the genotypes, of triple hybrid (2×5) ×3 produced the highest yield per unit area for both seasons at 23.41 and 23.55 tons ha^-1. But did not significantly differ from the triple hybrids (1×3) ×2, (2×3) ×4, and (2×4) ×1, which yielded 22.19, 22.82, and 20.88 tons ha^-1, respectively. The superiority of the triple hybrid (2×5) ×3 could be attributed to its higher, increased number of kernel row per ear, resulting in a higher weight of ears, which reached 556.5 and 553.4 gm for both seasons, as well as the highest yield per individual plant, reaching 439.2 and 441.5 grams.