An experiment was conducted with twenty varieties of wheat for eleven quantitative traits in three environments of extended dates of sowing at 25 days interval viz., 3 Nov. (Early sown as E1), 28 Nov., (Timely sown as E2), 23 Dec. (late sown as E3) during Rabi season. Highly significant variations due to genotypes against pooled deviation revealed the presence of genetic variability for all the traits under study except for biological yield per plant and harvest index. The component G-E Interaction being highly significant indicated that genotypes interacted considerably to environmental conditions in different environments. The predominance of linear component would help in predicting the performance of genotypes across environments. The genotypes PBW 343, PBW 527, PBW 233, PBW 502, UP 2425, UP 2565, C 306 has high mean values for grain yield and non-significant regression coefficient (bi) approaching unity with non-significant deviation from regression were more stable across three environments. Parameters in respects to yield attributing traits revealed that the variety UP 2565 was stable for grain yield per plant and biological yield per plant. While variety PBW 396 had average stability for productive tillers m-2, spike length and UP 2382 has similar response of test weight and days to maturity. Thus the present study brought the fact that PBW 396, UP 2565 and UP 2382 was most stable genotypes for yield and its attributing traits.
