Crop Production under Drought and Heat Stress: Plant Responses and Management Options

S Krishnaprabu¹

¹Assistant Professor, Department of Agronomy, Faculty of Agriculture, Annamalai University, India.

Abstract

Abiotic stresses are one of the major constraints to crop production and food security worldwide. The situation has aggravated due to the drastic and rapid changes in global climate. Heat and drought are undoubtedly the two most important stresses having huge impact on growth and productivity of the crops. It is very important to understand the physiological, biochemical, and ecological interventions related to these stresses for better management. A wide range of plant responses to these stresses could be generalized into morphological, physiological, and biochemical responses. Interestingly, this review provides a detailed account of plant responses to heat and drought stresses with special focus on highlighting the commonalities and differences. Crop growth and yields are negatively affected by sub-optimal water supply and abnormal temperatures due to physical damages, physiological disruptions, and biochemical changes. Both these stresses have multi-lateral impacts and therefore, complex in mechanistic action. A better understanding of plant responses to these stresses has pragmatic implication for remedies and management.

Keywords

• Crop Growth, Physiological, Biochemical Responses

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Cite this Article as Follows

S Krishnaprabu. Crop Production under Drought and Heat Stress: Plant Responses and Management Options. International Conference on Global Environmental Changes and Sustainable Development (2019): 109. Print.