Combining ability studies for seed yield its component characters and oil content in Indian mustard (Brassica juncea (L.) Czern and coss).

Twenty diverse genotypes (lines) were crossed with three varieties (testers) namely, Varuna, Basanti and RK 9501 in line X tester mating design resulting in sixty hybrids. These twenty three parents and sixty crosses were used to estimate the combining ability of Indian mustard (Brassica juncea (L.) Czern and coss) for ten quantitative traits viz. days to flowering, days to maturity, plant height (cm), number of primary branches, number of secondary branches, number ofsiliquae on matn raceme, number of seeds per siliquae, 1000-seed weight (g), seed yield per plant and oil content (%). Both general combining abality and specific combining ability effects were highly significant for all the traits. The gooo general combiners identified for seed yield were Basanti and Varuna Based on specific combining ability effects, crosses RC 376 x Varuna, RC 1148 X Basanti and RC 280 x RK 9501 were found best for oil content and RC 875 X Varuna, RC 280 x Basanti and RC 393 X RK 9501 were found best for seed yield.