DROUGHT STRESS: BIOCHEMICAL & BIOPHYSICAL ADAPTATIONS IN PLANTS

One of the most important factors that dictates the distribution of many plant species is their ability to withstand environmental stress including seasonal variations in temperature and available moisture. Environmental stresses such as drought, high salt and low temperature affect plant growth and decrease crop productivity extremely. It is important to improve stress tolerance of the crop plant to increase crop yield under stress conditions. Plants respond and adapt to the drought stresses with physiological and biochemical changes.