Combining Ability and Heterosis Studies in Indian Mustard

The oilseeds occupy significant place in Indian economy next to food grain. Indian mustard is an important oil seed crop of the world. It was introduced in India from China and from where it spread to Afghanistan and other countries. India is the third largest producer of oilseeds in the world. Indian mustard is a natural amphidiploid (2n=36) of Brassica campestris (2n=20) and Brassica nigra (2n=16) (Nagaheru 1935). It originated in Asia with its major center of diversity in China (Vaughan 1977). It was introduced in India from China and from where it spread to Afghanistan and other countries.