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chu cao ji dui zhi wu guang he zuo yong he xi fei neng li ying xiang chu tan
Pages: 47-49+68
Year: Issue:  2
Journal: Rural Eco-Environment

Keyword:  pesticidephotosynthesis32P absorption.;
Abstract: The effect of three herbicides on plant physiology is investigated using32P,14C isotope methods. The results show that tin early time after herbicides application, all of the three herbicides affect cotton absorbing 32 P. Sethoxydim inhibites32 P, absorption, fluazifop-butyl stumilates 32P absorptionand quizalofop - ethyl has almost no effect on32P absorption. The influence on soybean is less than that on cotton. Three herbicides are all photosynthetic inhibitors,the sequence of their effects is : fluaxifop - hutylsethoxydim quizalofop - ethyl. One week after herbicides application,the photosynthesis ability of soybean and cotton are gradually restored, sethoxydim and fluazifop - butyl can simulate the32P absorption ability of cotton and soybean,however ,auizalofop-ethyl has little effect on32P absorption ability.
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