The book gives an account of the major crop plants, their origin and diversification. It also deals with collection, conservation and management of crop plant genetic diversity for future use. It

IT HAS taken almost two decades of consistent research into the northeastern tribal practice of shifting agriculture for P S Ramakrishna, professor of ecology at the Jawaharlal Nehru University in New Delhi, to explode the myth that the system is primitiv

Sustainable development involves a practical compromise between short term human needs and never ending preservation of natural resources.

this is an interesting monograph. It combines historical ethnography with archaeo