بررسی اثر متقابل ژنوتیپ در محیط و سازگاری اکوتیپ‌های زیره سبز (Cuminum cyminum L.)

At the present research, adaptability and genotype × environment interaction of cumin using nine different cumin ecotypes in 5 different environments including 5 different sowing dates were studied in Kerman, and morphological traits were evaluated as well. The obtained results indicated that there is a significant interaction effect between genotype and environment for seed yield which represented as high change in rank interaction for this trait. In order to assess the adaptability, linear regression coefficient based on environmental index, was calculated. According to the results, can be said that all the ecotypes had general adaptability based on linear regression coefficients, but according to significant differences among regression coefficient values and yield of ecotypes, it can be said that Semnan ecotype (b=-0.098) had specific adaptability to unfavorable environments and Kerman ecotype (b=2.258) had specific adaptability to favorable environments. Khorasan-shomali ecotype with b=1.189 and considering to its high yield, had optimum general adaptability. Therefore Semnan ecotypes for planting in under stressed areas, Kerman ecotypes for planting in suitable areas without environmental stress and Khorasan ecotype as ecotypes adapted to different environments are introduced.