Among the open pollinated varieties of Indian rapeseed studied, the depressing effect of enforced seifing on ovule size was observed to vary between 9.9% in toria variety D.T.S. to 2.1% in the yellow seeded variety Sinoy. The mean value of inbreeding depression was 7.0% intoria,4.4% in brown sarson and 2.0% in yellow sarson. The trend of the depressing effect on the ovule developml!nt was also reflected in the similar magnitude in respect of seeds/siliqua, 1000-seed weight and oil content.
Indian rapeseed, heterozygosity, inbreeding depression, ovule development
