摘要
根系不仅是植物吸收、运输水分和养分的主要器官,还进行着许多复杂的生物化学反应,合成多种生物活性物质来调节植物的生长发育。根系还可以感受、识别根区的逆境信号,并向地上部转导,从而遥控地上部的生长发育。温度是影响根系生理功能的重要因素,而且植物对根区温度比地上部温度更敏感。根区温度对作物的生长和生理代谢影响很大,综述了不同根区温度对作物的生长、光合作用、产量及水分、矿质离子和激素代谢等的影响,并提出了一些存在的问题。
Root system is main organ of absorbing and transporting water and nutrient in plant,also,many complex biochemical reactions take place and many bioactive substances,which regulate growth and development of plant,are synthesized in it.In addition,root system can sense and identify stress codes of root zone and translocate and guide to above ground to remote control growth and development of plant.Temperature is an important factor that affects the physiological function of root system.Plant is more susceptible to root zone temperature than to that of above ground.The root zone temperature has a great effect on growth and physiological metabolism of crop.This review has stated about the effects of different root zone temperature on growth,photosynthesis,yield,metabolisms of water,mineral ions and hormones of crop,as well as raises some problems existed.
出处
《天津农学院学报》
CAS
2003年第2期32-36,共5页
Journal of Tianjin Agricultural University
关键词
根区温度
作物
生长
生理
root zone temperature
crop
growth
physiology
