HEAT STRESS EFFECT ON WHEAT: A REVIEW

Heat stress is the main limiting factors for wheat production worldwide. Raising of temperature above 31°C during grain filling causes heat stress. Every 1°C rise in temperature reduced the wheat production by 6%. Under heat stress, the plant highly produced reactive element known as oxygen reactive species. ROS disturbs the function of the cell by their negative action on lipids, protein and DNA. Heat stress disrupt the plant water relation, cell turgidity, reduced seed germination and seedling growth, deactivation of photosynthetic enzymes, disturb translocation of photosynthate due to which it reduced grain number and grain filling. Management approaches like agronomic management and genetic management can be applied against heat stress. The main objective of this review is to study the responses of wheat towards heat stress and its management practices.