Forty nine genotypes of wheat were evaluated in three different environments for number of seeds/spike, 1000-grain weight, number of productive tillers/m2 and grain yield/plot. Mean performances between genotypes and environments were significant indicating substantial variability among genotypes and environments for all the characters except number of productive tiller/m2. Highly significant variance due to environment + (GxE) revealed that genotypes interacted considerably with environmental conditions. Though both linear and non-linear components of GxE interaction played important role in the expression of number of seeds/spike and 1000-grain weight, the linear component was larger in magnitude. Number of productive tiller/m2 and grain yield/plot showed highly significant variance due to non-linear component. Considering the three parameters of stability for each character, the genotypes namely PS 461, DW 1104, DL 97-8, DW 1106 and HP 1744 were found to be stable across the environments for yield as well as component traits.
GxE Interaction, Stability, Wheat
