Selection of wheat genotypes under variable sowing conditions based on stability analysis

Abstract

Thirty wheat genotypes were tested for yield stability under two dates of sowing i.e. late and very late for two consecutive years. Stability was measured based on regression (bi) and stability parameter (S2di). With these parameters, four varieties (HD 3059, WH 1105, HTW 66 and WH 1124) for late sown conditions whereas three varieties (HTW 11, WH 730 and BWL 5186) for very late sown conditions were found promising with their yield stability under late and very late sown environment. Four genotypes namely, HD 3059, WH 1105, HTW 66 and WH 1124 with bi significantly greater than 1 and higher average productivity than overall mean are suitable for late sown condition. Similarly, genotypes HTW 11, WH 730 and BWL 5186 with bi less than unity and higher mean yield were found suitable for marginal environment i.e. for very late sown condition. Doi.org/10.25174/2582-2675/2020/99755