PHENOTYPIC ADAPTABILITY OF BUNCH GROUNDNUT (ARACHIS HYPOGAEA L.) FOR POD YIELD DURING SUMMER

Abstract

Twenty-nine bunch groundnut genotypes were evaluated for adaptability under summer condition across four environments for pod yield. Both linear and nonlinear portions of genotypes X environment (G X E) interaction accounted for the expression for pod yield. However, the predictable portion was significantly higher than the nonpredictable portion. Most of the genotypes were responsive to the fluctuations in agroclimatic conditions. The high yielding genotype J (E)-l showed wider adaptability over environments. High yielding genotypes which exhibited greater response to favourable environments were also identified. High pod yield coupled with high response results in greater instability, while medium pod yield with average response leads to stability of the genotypes.