杜仲扦插枝条在不同干旱处理下的生理活性研究  

The Physiology of Eucommia ulmoides Oliv Cutting under Different Drought Treatment

作　　者：王晓辉[1] 李广德[2] 沈繁宜[1] 

机构地区：[1]北京林业大学理学院,北京100083 [2]北京林业大学省部共建森林培育与保护教育部重点实验室,北京100083

出　　处：《现代农业科学》2008年第2期24-26,共3页

基　　金：国家自然科学基金资助项目(30270343)

摘　　要：对杜仲扦插枝条进行干旱胁迫和在不同干旱条件下复水,观察扦插枝条的生长情况,测定相应生理指标变化。结果发现:遭受干旱胁迫逐渐萎蔫至死亡的扦插枝条,与水分相关的参量—枝条水势和蒸腾速率—呈现出突变,其突变的发生与枝条的永久萎蔫成对应关系。Through using water stress treatment and rewatering under different drought conditions to Eucommia ulmoides Oliv cutting. observed the growth and study the physiology change of the cuttings under different soil drought. The results showed that： suffered from drought stress and died away at last, the cutting＇ s water potential and transpiration rate had break change which had corresponding relationship with permanent wilting.

关 键 词：水分运输 植物永久萎蔫 复水 干旱胁迫 杜仲扦插枝条 

分 类 号：S792.990[农业科学—林木遗传育种]