Heat and Drought Stresses in Crops and Approaches for Their Mitigation.

ABSTRACT: Drought and heat are major abiotic stresses that reduce crop productivity and weaken global food security, especially given the current and growing impacts of climate change and increases in the occurrence and severity of both stress factors. Plants have developed dynamic responses at the morphological, physiological and biochemical levels allowing them to escape and/or adapt to unfavorable environmental conditions. Nevertheless, even the mildest heat and drought stress negatively affects crop yield. Further, several independent studies have shown that increased temperature and drought can reduce crop yields by as much as 50%. Response to stress is complex and involves several factors including signaling, transcription factors, hormones, and secondary metabolites. The reproductive phase of

SUBMITTER: Lamaoui M 

PROVIDER: S-EPMC5827537 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature