Stability analysis of grain yield and its contributing traits in advanced mutant lines of sorghum [Sorghum bicolor (L.) Moench]

Abstract

In the present study, 23 sorghum genotypes comprising 17 advanced mutant lines (M5) and six check varieties were evaluated for stability parameters over four locations during rabi 2017-18. Based on the ten morphological and yield traits, pooled ANOVA showed significant differences for the quantitative traits except for seed yield per plant. Mean sum of squares due to E+ (GxE) was significant for most of the characters except for days to flowering, and 100 seed weight. Environment component showed significant values for all traits. The GxE (linear) showed non-significant interaction for most of the characters in this study except for plant height, panicle length and seed yield. J-12 and J- 3 mutants had mean value more than population mean and coefficient of regression near to unity and adapted to all situations.