Consequences of enforced inbreeding on ovule development in certain outcrossing populations of indian rapeseed (Brassica campestris L. prain)

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.