Ten maize genotypes were evaluated under eight environmental conditions to study their stability for grain yield. The eight environments included two planting datcs. Iwo nitrogen levels, and two growing seasons. The model suggested by Eberhart and Russell (1996) was followed for studying the stability parameters. Significant genotypes and genotypes x environment interaction were obtained for maize graini yield/plant. Also, (bi) values did not deviate significantly from the unity in seven genotypes. Moreover, the deviation from regression mean squares ((S2di)) was significant for all of the studied genotypes. Results of grain yield also indicated that two genotypes namely. T.W.C. 310 and D.C. Taba had high mean value (x), (bi) values ‘=1, and low values of deviation from regression. Therefore, these two genotypes are considered more stable than the other studied genotypes and could be used effectively in future maize breeding programs |
