This volume looks at the use of crops for a myriad of purposes, including the prevention and/or mitigation of various diseases, vaccine and antigen production, biofuel production, and the the suppression of weeds. It explores new emnphasis on medicinal properties of crops and examines the use of genetic engineering in crop production. The crops discussed include: rice, wheat, barley, oat, rye, maize, sorghum, potato, sweet potato, cassava, Phaseolus beans, Vigna sp., broad bean, chickpea, tomato, broccoli, cauliflower, cabbage, bitter gourd, pumpkin, spinach, onion, soyabean, groundnut, oilseed Brassica, sunflower, sugarcane, cotton, and tobacco.