Dr. Victor O. Sadras is a crop ecophysiologist with expertise in the adaptation of crops to environmental stresses, including water deficit, extreme temperatures, nutrient deficiency, soil physical and chemical constraints, pathogens, and insects. He has studied and modeled aspects of the water, carbon, and nitrogen economies of annual crops (wheat, field pea, chickpea, sunflower, maize, soybean, cotton) and perennial crops (grapevine and olive) in rain-fed and irrigated systems.