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Effects of Soil Water Stress on Protein Metabolism and Changes of Endogenous Hormones Contents of Barley Flag Leaf

YAN Jie et al(College of Life Sciences,Shihezi University,Shihezi,Xinjiang 832003)  
Under culturing method in proof-rainfall-trough,the effect of soil water stress on protein metabolism and changes of endogenous hormones contents of barley flag leaf after anthesis was studied.The results showed that soil water stress affected the protein metabolism of flag leaf obviously. The content of soluble protein was higher in water stressed leaves than that in leaves.Meanwhile,protease activity was enhanced by water stress,but also its change tendency varied.It showed close relationship that under soil water stress,the iPA content of flag leaf decreased and the ABA content increased rapidily,which accelerated senescence of flag leaf.
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