The food requirements of man are met largely by high yielding food plants like wheat, rice, maize, millets, pulses,
tapioca, oilseeds and a variety of fruits & vegetables that have been developed by him, during a period of less than
ten thousand years, from their wild and weedy relatives which hardly gave any yields. But, the fact that progenitors
of our widely cultivated and high yielding varieties are indeed the wild varieties underscores the vital importance
of wild species of plants as basic resources for future requirements.