Combining ability analysis for yield and its components in hybrid rice.

摘要

Twenty-seven hybrids generated from crossing three CMS lines with 9 testers were studied along with the parents for combining ability for days to 50% flowering, days to maturity, plant height, number of effective tillers hill-1, panicle length, sterility (%), 1000-grain weight and grain yield plant-1. Among the male parental lines, Pusa 1040 and PSRM-1-16-48-1 appeared as a whole, the best general combiner for yield and its component traits. The female line IR 58025A was a good combiner for grain yield plant-1 and its major components. The most promising specific combinations were IR 68886A x Pusa 1040, IR 58025A x Gautam and IR 68886A x PSRM-1-16-48-1.