Genotype x Environment Interaction and Stability Analyses for Yield and Yield Attributing Traits of Different Genotypes in Chickpea (Cicer arietinum L.)

Abstract

The present investigation Genotype x Environment interaction and Stability analysis study in Chickpea (Cicer arietinum L.)” was
carried out with forty one genotypes in RBD design with three replications at three locations viz. Rajendra Agricultural University at Pusa, TCA,
Dholi, Muzaffarpur and KVK, Gaya during Rabi 2005-06 and 2006-07. Thirteen quantitative as well as qualitative traits were included in the
investigation to estimate genetic variability, character association, direct and indirect effects, genetic divergence and G x E interaction along with
stability parameters. The analysis of variance revealed considerable variability among the treatments for ten characters except number of primary
branches. Analysis of variance for stability pooled over environments exhibited significant differences among genotypes for all the characters
except insoluble protein. The linear component of environment and G x E interaction was found to be highly significant for number of primary
and secondary branches, number of pods per plant and grain yield, which might be responsible for high adaptation in Chickpea genotypes.
Among the forty one genotypes in stability study, seven genotypes namely IPC 2003-55, SAKI 95-16, IPC 2003-57, ICCV 10, IPC 2003-10, IPC
2003-66 and IPC 2003-68 appeared to be more adapted as they exhibited non significant deviation from regression, linear components (bi) value
less than unity and high mean for grain yields as compare to the population mean, indicating that, these genotypes may give similar response in
poor as well as good environments.