Abstract

A line  tester analysis was made in rice with six ovule parents and five pollinator parents so as to identify suitable general and specific combiner for breeding program. Dominant types of gene action for all the seven traits namely, days to first flower, plant height, number of productive tillers per plant, panicle length, filled grains per panicle, hundred grain weight and grain yield per plant was observed. Parents TRY 1, ADT 36, AURC 8 and AURC 10 were good general combiners for grain yield per plant and most of the yield traits. The cross combinations AURC 10  ADT 43, AURC 8  ADT 43, AURC 8  ADT 36 and AURC 25  ADT 36 were the best specific combiners for grain yield per plant. Hence, these four cross combinations may be used for exploitation of heterosis for yield contributing traits in rice