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Bulletin of Botanical Research ›› 2003, Vol. 23 ›› Issue (3): 285-289.

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EFFECT OF DIFFERENT LIGHT INTENSITY ON THE LEAF COLD RESISTENCE ABILITIES OF TAXUS MEDIA CV.HICKSII

LU Zhan-Gen1, ZHOU Wen-Jie1, ZHAO Chang-Qiong2, TAN Feng3   

  1. 1. Biological Department, Hengshui Teacher College, Hengshui 053000;
    2. Department of Life Science, Fuling Teacher College, Chongqing 408003;
    3. School of Life Science, Southwest China Normal University, Chongqing 400715
  • Received:2002-01-21 Online:2003-09-15 Published:2016-06-14

Abstract: The influence of different light intensity on the leaf cold resistance abilities of Taxus media cv.Hicksii was studied by the method of physiology biochemistry from the follow physiologic indexes:the semilethal low temperature (LT50), the contents of free water and bound water, osmoregulation matter and endogenous hormone. The results showed consistent, the leaf cold resistance abilities were ascertained from big to small as follows:natural light; one-layer shade; two-layer shade. It also indicated that it was better to evaluate the leaf cold resistance abilities by combining the several indexes.

Key words: Taxus media cv.Hicksii, light intensity, cold resistance, physiologic index