The book in hand provide valuable information on genetic diversity, morphological, biochemical and molecular markers of Brassica spp. Brassica is the major contributor in the domestic edible oil production. Currently the national average yield is very low as compared with other rapeseed growing countries around the globe. The domestic production hardly meet 30% of the country edible oil requirement, while 2.045 million tons (70%) is imported from abroad at the cost of about Rs. 224 billion currently. Among the production constraints low potential varieties emerged the major one. In this monograph an attempt has been made to collect Brassica spp. from various part of the country and were evaluated for various important attributes, which can lead us toward self-sufficiency and ultimately prosperity of the country. The book can be an asset for the scientific communities, planners, agricultural students and allied stalk holders. It should in every library around the country.

Earth the planet we inhabit, is a single, living pulsating entity and the human race an interlocking extended family. The land water and the atmosphere which constitute it environment, support .37 million species of plants and 1.2 million species of animals. Human interference into the environment has upset the ecological balance of our planet. Exploitation of non renewable resources has created havoc and if allowed to continue can disrupt life on this planet. Some of the most dramatic cases with environment are man mad fires slashes burn agriculture, mineral mining, dumping of sewage and industrial wastes, introduction of new transport system into natural environment, persistence of nuclear testing and disposal of nuclear waste, the threat of Global worming and the attenuation of our ozone shield, the havoc of deforestation leading to destruction of many species of flora and fauna, devastation of landscape by herbicides introduction of pests into new areas, over population, overgrazing, coupled with drought extensive air and water pollution, and the poising of the food chain. All these are the problem which the human race shares in common.