盐、干旱及其复合胁迫对水稻产量和品质形成影响的研究进展OA北大核心CSTPCD

The production of rice in coastal saline-alkali lands is constrained by limited freshwater resources and water infrastructure.The presence of salinity damage and drought,often occurring together,renders rice production in these areas highly susceptible to combined salinity-drought stress,significantly impeding the attainment of high yield and quality in rice in coastal saline-alkali lands.A comprehensive analysis of the impacts of salinity damage,drought,and their combined stresses on rice yield and quality formation,along with their physiological mechanisms,can offer scientific backing for optimizing high-yield and quality rice cultivation in coastal saline-alkali lands.This article presents an overview of the effects of salinity damage,drought,and their combined stresses on the growth,development,yield formation,and grain quality of rice.The mechanisms underlying their influence on rice yield and quality formation are elucidated,focusing on osmotic regulation,ion balance,photosynthetic functions,antioxidant enzyme systems,endogenous hormones,key enzyme activities related to sucrose-starch metabolism,and molecular mechanisms.Recommendations are provided for the selection of salinity-and drought-tolerant varieties,as well as cultivation practices to mitigate salinity and drought stress in rice.Lastly,suggestions are proposed for further research on salinity and drought stress in rice.