The concept of stability is important for the selection of the crop Cultivars and in the breeding programs. The aim of this work was to evaluate the productivity of some bread wheat cultivars under rainfed conditions of different locations in the NWCZ of Egypt. Results of the current study showed that the studied cultivars performed differently in the different environment and. AMMI analysis revealed that the environment was responsible for most of the cultivars yields variation also AMMI2 bi-plot revealed that East Barrani in the first season was the most favorable environment for all cultivars, and Sakha 94 was the superior cultivar in this environment. According to the Eberhart and Russel Sakha 94 was the most stable cultivar followed by Misr 1 Sakha 93 cultivar is considered as the most stable high yielding genotypes under both moderate and severe drought conditions.
Keywords: Environment Interaction, Genotype, Rainfed Conditions, Wheat, Yield Stability