Abstract

Accumulation of oil was observed from the 5th day after anthesis in all the six varieties studied in both winter and sumeer seasons. The oil content was maximum between 30 and 40 days in all the varieties in both the seasons. Among the varieties, in the matured seed, the percentage of oil ranged from 18.10 to 20.30 in winter and from 18.40 to 20.95 in summer. The rate of oll accumulation was more rapid in winter than in summer in all the varieties. The formation of protein was observed from the 10th day after anthesis in ell the variaties in both the seasons. The protein content was maximum between 40 and 55 days in different varieties in both the seasons. Among the varieties the protein content at maturity, ranged from 15.11 to 18.90 per cent in winter and from 14.48 to 19.76 per cent in summer. The extent of variation in protein content between varieties was comparatively narrow in winter then in summer.

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