Genetic Divergence Analysis in Indian Mustard [Brassica juncea (L.) Czern & Coss.]

Abstract

Indian mustard [Brassica juncea (L.) Czern & Coss] is an important Rabi season oilseed crop, belongs to family Cruciferae and genus Brassica. Indian mustard is a natural amphidiploid (2n=36) a cross between Brassica rapa (2n=20) and Brassica nigra (2n=16). Mustard is largely self-pollinated but certain amount (2-14%) of cross pollination may take place and is mainly grown in northern part of India. Rajasthan contributes 44.60 % in area & 52.05 % in production of total rapeseed-mustard of India. Mustard crop required lower water requirement (240–400 mm) for completing life cycle, therefore it is fits well for rain fed cropping systems. Four oleiferous brassica species viz. Brassica juncea, Brassica napus, Brassica rapa and Brassica carinata are cultivated in about 6.2 International Journal of Current Microbiology and Applied Sciences ISSN: 2319-7706 Volume 9 Number 10 (2020) Journal homepage: http://www.ijcmas.com