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不同光强对曼地亚红豆杉抗寒性的影响
引用本文:芦站根,周文杰,赵昌琼,谈锋. 不同光强对曼地亚红豆杉抗寒性的影响[J]. 植物研究, 2003, 23(3): 285-289
作者姓名:芦站根  周文杰  赵昌琼  谈锋
作者单位:1. 河北省衡水师专生物系, 衡水 053000;
2. 涪陵师范学院生命科学系, 重庆 408003;
3. 西南师范大学生命科学院, 重庆 400715
基金项目:重庆市科技攻关项目资助 ( 2 0 0 0 -6222),国家“863计划”项目资助 ( 2 0 0 2AA2 12 191)
摘    要:用生理生化的方法从低温半致死温度、自由水、束缚水含量、渗透调节物质含量及内源激素含量等生理指标研究了不同光强对曼地亚红豆杉(Taxus media cv. Hicksii)抗寒性的影响,各项所得结果趋于一致,确定了曼地亚红豆杉抗寒性的大小顺序为:自然光、一层遮荫、二层遮荫。同时也表明将这几项指标结合起来评定植物的抗寒性大小效果较好。

关 键 词:曼地亚红豆杉  光强  抗寒性  生理指标  
收稿时间:2002-01-21
修稿时间:2002-01-21

EFFECT OF DIFFERENT LIGHT INTENSITY ON THE LEAF COLD RESISTENCE ABILITIES OF TAXUS MEDIA CV.HICKSII
LU Zhan-Gen ZHOU Wen-Jie ZHAO Chang-Qiong TAN Feng. EFFECT OF DIFFERENT LIGHT INTENSITY ON THE LEAF COLD RESISTENCE ABILITIES OF TAXUS MEDIA CV.HICKSII[J]. Bulletin of Botanical Research, 2003, 23(3): 285-289
Authors:LU Zhan-Gen ZHOU Wen-Jie ZHAO Chang-Qiong TAN Feng
Affiliation: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
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 (LT 50),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.
Keywords:Taxus media cv.Hicksii  light intensity  cold resistance  physiologic index
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