Heat stress in wheat: a global challenge to feed billions in the current era of the changing climate

Frontiers in Sustainable Food Systems

Sustainable Food Systems

Akbar Hossain¹  Md. Farhad¹  Uttam Kumar²  Pradeep Kumar Bhati²  Navaneetha Krishnan J.³  Viliam Barek⁴  Vipin Tomar⁵  Marian Brestic⁶ 

[1]Bangladesh Wheat and Maize Research Institute, Dinajpur, Bangladesh

[2]Borlaug Institute for South Asia, Ludhiana, Punjab, India

[3]Department of Crop Improvement, Kumaraguru Institute of Agriculture, Erode, Tamil Nadu, India

[4]Department of Water Resources and Environmental Engineering, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture, Nitra, Slovakia

[5]Département de Phytologie, Université Laval, Québec City, QC, Canada

[6]Institute of Plant and Environmental Sciences, Slovak University of Agriculture, Nitra, Slovakia

关键词: wheat;    heat stress;    changing climate;    food security;    current era;   

DOI  :  10.3389/fsufs.2023.1203721

 received in 2023-04-11, accepted in 2023-06-12,  发布年份 2023

来源: Frontiers

【 摘 要 】

Crop failure is largely caused by various climate hazards, and among them, heat stress is the primary factor hindering crop production. The significant global loss of crop yield is primarily due to heat-related damage during the reproductive phase. Terminal heat stress has been well documented in wheat, causing morphophysiological alterations, biochemical disruptions, and reduction of genetic potential. The formation of shoots and roots, the effect on the double ridge stage, and early biomass in the vegetative stage are also impacted by heat stress. The final negative outcomes of heat stress include reduced grain number and weight, slower grain filling rate, reduced grain quality, and shorter grain filling duration. Plants have developed mechanisms to adapt to heat stress through modifications in their morphological or growth responses, physiological and biochemical pathways, and changes in enzyme reactions. Numerous heat tolerance genes have been identified in wheat, but the more extensive study is needed to increase heat tolerance in crops to satisfy the food demands of the world’s growing population. The global food policy needs to prioritize and promote additional joint research and the development of heat-tolerant wheat breeding to ensure the world’s food security.

【 授权许可】

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Copyright © 2023 Farhad, Kumar, Tomar, Bhati, Krishnan J., Kishowar-E-Mustarin, Barek, Brestic and Hossain.