干旱胁迫对水稻农艺特性和产量的影响综述

Review on the effects of drought stress on agronomic characteristics and grain yield of rice

随着全球气候的变化,可利用淡水资源的减少,干旱胁迫对水稻产业发展的制约愈发严重,干旱导致水稻减产成为影响水稻生产的重要环境因子。综述了干旱胁迫对水稻农艺特性(生育期、分蘖动态、株高、叶面积指数、干物质积累与分配)以及产量的影响,通过合理灌溉,提高水稻水分利用效率,为水稻抗旱栽培调控途径和抗旱育种提供理论参考。

With the global climate change and the reduction of available fresh water resources,drought stress significantly reduces rice yield and severely restricts the development of the rice industry. Drought stress has become an important environmental factor affecting rice production. This article reviews the effects of drought stress on rice agronomic characteristics(growth period,tiller dynamics,plant height,leaf area index,dry matter accumulation and distribution)and yield. Through rational irrigation,the water use efficiency of rice is improved,which provides theoretical reference for rice drought-resistant cultivation and regulation methods and drought-resistant breeding.