摘要
刺槐(Robinia pseudoacacia L.)种子经250 ppm多效唑(MET)浸种处理,可提高刺槐幼苗的耐盐性,表现在提高幼苗的相对含水量,减少质膜透性和对生长的抑制。在盐胁迫下,经MET浸种过的刺槐幼苗与对照幼苗均能提高植物体内游离脯氨酸的含量。但腐胺含量且随MET浸种处理而降低,表明腐胺的积累与幼苗的水分状况密切相关。
An improved salt tolerance black locust (Robinia pseudoacacia L. ) seedlings can be obtained after seed soakes in 250 ppm multi-effect triazole(MET),through which plant growth is inhibited, relative water content (RWC) of plants is increased ,and permeability of plasmic membrane is reduced. The contents of the free prolines in the seedlings under the saline stress of the black locust through the treatment either the seeds being soaked in MET or in water may be increased . However, the content of putrescine of black locust seedlings after seed soaked in MET was re-dued under stress,showing the accumulation of putrescine was related to water state of plants
基金
国家自然科学基金资助项目
关键词
多效唑
刺槐
幼苗
耐盐性
Seed of Robinia pseudoacacia
Multi-effects triazole
Saline stress
Putrescine
