GENOTYPE X ENVIRONMENT INTERACTION AND STABILITYANALYSIS OF LOWLAND RICE GENOTYPES

Twenty-one lowland rice genotypes were evaluated for theirstability parameters with respect to grain yield in a multi-locational trial at fivedifferent sites of Eastern India viz. Central Rice Research Institute, Cuttack(Orissa); OUAT, Bhubaneswar (Orissa); CRS, Masodha (UP); RAU, Pusa (Bihar)and RARS, North Lakhimpur (Assam). Pooled analysis of variance reflectsexistence of genotype x environment interactions and contribution of both linearand non-linear components to genotype x environment interactions. Throughstability parameter analysis, it was found that Rayda B3, CR 778-95 and CR 661-236 were suitable for all environments. The genotypes Sabita and OR 1358-RGA-4were suitable for better environments. PSR 1209-2-3-2, CR 780-1937, Ambika, OR877-ST-4-2, NDR 40055-2-1 and CR 662-2211 were identified for poorenvironments.