Gene action of yield and yield contributing traits of submergence tolerant rice (Oryza sativa L.) in Bangladesh

Abstract

In this study, generation mean analysis has been performed for yield-contributing traits and found that plant height, no. of primary branches panicle−1, no. of secondary branches panicle−1, no. of filled grain panicle−1, no. of grain panicle−1 and dominant effects for yield hill−1, yield tiller−1, and 1000 grain weight have association to yield, governed by additive gene effect. In respect of epistatic effect, duplicate epistasis was predominant for all the traits except panicle length. From a heritability view, plant height, no. of primary branches panicle−1, and no. of grain panicle−1 showed high heritability and plant height, panicle length, no. of filled grain panicle−1, and 1000 seed weight which found high genetic advance.