Stability analysis for yield and yield attributing characters of cluster bean [Cyamopsis tetragonoloba (L.) Taub.] elite genotypes

Abstract

Cluster bean is an important rainy season legume for arid and semi-arid areas of India. Due to its vast industrial application, its gum serves as a valuable export commodity for India. To understand G X E interaction and stability analysis, the present study was conducted using twenty-five genotypes of cluster bean, evaluated over eight environments. The genotypes, environments, and G X E interaction showed highly significant differences for all the characters, revealing that both genotypes and environments were significantly different and there was differential behavior of genotypes in changing environments with respect to cluster bean yield along with its attributing characters. Genotype RGC 1066 was found stable under all environments for seed yield per plot and harvest index. Other genotypes stable over the environments for different traits were identified for use in future improvement programmes.