Comparative pattern of variability and correlations was investigated in the two ecotypes of Indian rape, Brassica campestris L., viz., brown sarson (90 accessions) and yellow sarson (60 accessions). In both the ecotypes, viz., brown sarson (Group I) and yellow sarson (Group II), the oil content and the days to maturity exhibited the lowest variation whereas the primary branches/plant and the secondary branches per plant had the highest. Except for the siliqua on main shoot in brown sarson and the seeds per siliqua in yellow sarson, the pattern of variation was similar in both the Groups. The correlations were, however, variable in both the Groups. A consistent trend of relationship was observed in both the Groups for the plant height with the main shoot length (r=0.565*** -0.568**) and the siliqua on main shoot (r=0.344** -0.679**) and similarly, the siliquae on the main shoot with main shoot length (r=0.464** -0.471**) and the primary branches per plant (r=0.386** -0.497**). The rest of the 1000-seed weight in Group II, the other traits seemed to be independent of the days to maturity, hence early types with good agronomic base could be developed.
Indian rape, Brassica campestris L., correlations, variability, agro-morphological traits
