The course coverages of the physiology of water use efficiency at whole plant level especially in terms of plant nutrition.After description of main concepts about the subject, interactions between water use efficiency and plant, plant nutrients, water, soil as an environment, yield will be examined in the course.

What is water use efficiency? Moisture stress and plant response. Soil environment and root development. Soil water movement and root absorption. Energy conversion and water use efficiency in plants. Importance of plant nutrition on water use efficiency. Nutrient transfer and plant absorptions mechanisms. Crop yields in relation to water supply and soil fertility. Increasing water use efficiency by crop management. Increasing water use efficiency by soil management. Physiological approaches to enhance water use efficiency. Agronomic approaches to increasing water use efficiency.