Heterosis studies in brown sarson (Brassica rapa L.)

Heterosis was estimated over mid and better parent, respectively among 45 F1 hybrids for seed yield and related traits.. The mostdesirable cross combination viz., CR-1485 x CR-1607 for seed yield plant-1 also showed desirable mid and better parent heterosisfor 1000-seed weight and primary branches plant-1. The cross combinations CR-1485 x CR-1607 (primary branches plant-1), CR-1630 x KS-101 (secondary branches plant-1), CR-2638 x KOS-1 (number of siliquae on main raceme), CR-1630 x CR-2871(number of siliquae plant-1), CR-1607 x KOS-1 (days to maturity) and KOS-1 x KS-101 (oil content) showed highest mid andbetter parent heterosis. These cross combinations also revealed high per se performance.