Fourteen genotypes were studied for grain yield and its stability in different climate of Ardebil, Eqlid, Arak, Zanjan, Tabriz, Mashhad, Jolgerokh, Miandoab, Hamedan and Karadj using randomized complete block design with three replications in two years; results of combined analysis of variance showed that the interaction effects of year × location and genotype × year × location were significant at 1% probability level. For determination of genotypes with high yield and stability, parametric and non-parametric statistics were used among the methods which were used, AMMI model was found more effective than the others. Based on AMMI (AMMI1, AMMI2 and AMMI3) results, genotypes number 2, 5, 6, 7, 8 and 9 were determined as stable in most of the locations, genotypes number 9, 10 and 13 for Karadj, number 2 for Zanjan, number 4 for Jolgerokh and Ardebil, and number 7 for Mashhad showed specific adaptability.
Key words: Yield stability, promising lines, additive main effects and multiplicative interaction (AMMI) analysis.
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