高温胁迫影响玉米生长发育的生理机制研究进展

Research Advancements of Effect of High Temperature Stress on Growth and Development of Maize

温度是影响玉米生长和发育最重要的生态因素之一。近年来,玉米生育期间高温天气发生频率增加、持续时间增长,对作物生长发育及产量的影响日趋严重,已经引起科研工作者的关注。研究高温胁迫对玉米生长发育及产量形成影响的生理生化机理并制定防御措施,对玉米高产稳产具有重要意义。本文综述高温胁迫对玉米根系、叶片、雌雄穗发育、子粒灌浆、抗氧化系统、内源激素含量及平衡等6个方面的影响,为深入了解高温胁迫限制玉米生长发育的机理、制定应对高温胁迫的预防措施提供参考。

Temperature is one of the most important ecological factors which affect the growth and development of maize.In recent years,the frequency of high-temperature weather during crop growth has increased,and its duration has prolonged.The effects of high-temperature stress on crop growth and yield formation have become increasingly serious and have attracted the attention of researchers.It is important to study the mechanism of high-temperature stress on maize damage and to develop defense measures for the stability of corn production.This differentiation of expounds the effects of high-temperature stress on maize roots,leaves,male and female ear development,grain filling,antioxidant system and endogenous hormone content and balance,for the understanding of the mechanism of high temperature stress limiting maize growth and development,and provide a reference for the prevention measures against high temperature stress.