| 盐胁迫下树木的K+和Na+含量变化特点及其耐盐性 |
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| 引用本文： | 詹亚光,陈全涉,苑盛华,刘关君,刘桂丰,杨传平. 盐胁迫下树木的K+和Na+含量变化特点及其耐盐性[J]. 东北林业大学学报, 1999, 27(1): 24-27 |
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| 作者姓名： | 詹亚光 陈全涉 苑盛华 刘关君 刘桂丰 杨传平 |
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| 作者单位： | 东北林业大学,哈尔滨,150040,黑龙江省伊春市营林局,北京市林业局 |
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| 基金项目： | 教育部优秀青年教师资助计划;; |
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| 摘 要： | 通过几种主要造林树种在盐胁迫下体内Na+和K+含量变化的分析,对树木耐盐性及其机理进行了讨论.结果表明:不同树种的Na+和K+含量及在盐胁迫下的变化动态存在明显差异,说明其耐盐机制不同,树木的Na+和K+的质量比值,随NaCl的质量浓度的增加而上升、其上升幅度在耐盐性强的白榆中较小;在盐胁迫下,适当地增加Ca2+,可维持树木体内较低的Na+和K+的质量比,从而提高树木耐盐性.
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| 关 键 词： | 树木 耐盐性 无机离子 |
| 修稿时间： | 1998-07-29 |
K+ and Na+ Content Change in Trees under Salt Stress and Tree Salt Tolerence |
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| Zhan Yaguang,Chen Quanshe,Yuan Shenghua,Liu Guanjun,Liu Guifeng,Yang Chuanping. K+ and Na+ Content Change in Trees under Salt Stress and Tree Salt Tolerence[J]. Journal of Northeast Forestry University, 1999, 27(1): 24-27 |
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| Authors: | Zhan Yaguang Chen Quanshe Yuan Shenghua Liu Guanjun Liu Guifeng Yang Chuanping |
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| Abstract: | By analysing the Na + and K + content in tree and their changes and distribution under salt stress, the salt-resistant mechanism was discussed. The results show that there is a significant difference inNa + and K +content among tree species, which indicates their difference in salt tolerance and salt-resistant mechanism. Na +/K + of trees goes up with the salinity increasing in media, but the increasing of Na +/K + is lower in tolerate species than in intolerate ones. It is found that adding calciferous salt to media is effetive for trees to decrease Na +/K + in bodies and increase salt tolerance. |
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| Keywords: | Tree Salt tolerance Inorganic ions |
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