Mechanisms and Strategies for Improving Drought Tolerance in Fruit Crops (original) (raw)
Climate change resulted in low water availability as well as increasing demands for food in the future makes breeding for drought tolerant crops a high priority. Drought stress is one of the most ominous abiotic factor limiting the productivity and quality of fruit crops resulting in huge economic loss to the fruit growers. Plants have developed diverse strategies and mechanisms to survive drought stress. Most of these represent drought escape or avoidance strategies like early flowering or low stomatal conductance that are not applicable in breeding for crops with high yields under drought conditions. Drought tolerance is a very complex trait as it depends not only on the severity of the drought (mild or severe), but also on the developmental stage of the plant as well as the duration. From the physiological point of view, survival is the major aim in plant stress tolerance, whereas from the agricultural point of view crop yield is the trait that determines a drought tolerant crop. This review article highlights the mechanisms and strategies for drought tolerance in fruit crops.
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