Agriculture growth has to be maintained for sustained supply of food and raw materials to burgeoning population as well as industries. Plants are the major sources of food supply and in future they will be the major contributors of raw materials to industries. But many factors such as drought, land degradation, pests and diseases are coming in the way of production and productivity. New approaches are needed to expand production, in order to improve food security and meet the increasing demands for food at national and international levels.