STABILITY OF RICE YIELD UNDER DIFFERENT LOWLAND SITUATIONS

Abstract

Phenotypic stability was studied in 47 rice genotypes under four different lowland situations for grain yield and its twoimportant components, panicleweightand earbearing tillers (EST) per hill. Significantgenotype (G) x environment(E) interactionswere observed for all the traits. Among the linear and nonlinear components of G x E interaction, linear component was predominant for EBTlhill and nonlinear component for grain yield, while both are equally important for panicle weight. On the basis of stability parameters, the genotypes CR 728-7-2·2, CR 673-431 and Utkal Prava were identified as best cultures for both intermediate and semi-deep low land situations under direct seeded as well as transplanted conditions.