| 氯化钠处理下绒毛白蜡种苗的耐盐性 |
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| 引用本文： | 吴永波,薛建辉,李火根. 氯化钠处理下绒毛白蜡种苗的耐盐性[J]. 南京林业大学学报(自然科学版), 2000, 24(5): 37-40 |
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| 作者姓名： | 吴永波 薛建辉 李火根 |
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| 作者单位： | 南京林业大学森林资源与环境学院,江苏,南京,210037 |
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| 基金项目： | 国家“九五”攻关子专题“沿海护林植物材料选育与栽培技术体系”研究内容!( 96-0 0 7-0 3 -0 7) |
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| 摘 要： | 通过种子萌发试验和幼苗盆栽试验，对不同浓度氯化钠处理下白蜡种子发芽质量指标和幼苗的钠钾含量、游离脯氨酸含量及存活率进行了测定分析。结果表明：（１）随着盐分浓度的提高，划种子的发芽率、发芽势、发芽指数、活力指数均下降。（２）不同浓度盐处理之间幼苗叶片的游离脯氨酸含量变化明显。（３）随着盐分浓度的提高，Ｎａ＾＋浓度升高，Ｎａ＾＋／Ｋ＾＋比上升。幼苗存活率逐渐下降。
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| 关 键 词： | 氯化钠 绒毛白蜡 游离脯氨酸 荫芽指标 耐盐性 |
A Study on Salt-resistance of Fraxinus velutina under Different NaCl Concentrations |
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| WU Yong-bo,XUE Jian-hui,LI Huo-gen. A Study on Salt-resistance of Fraxinus velutina under Different NaCl Concentrations[J]. Journal of Nanjing Forestry University(Natural Sciences ), 2000, 24(5): 37-40 |
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| Authors: | WU Yong-bo XUE Jian-hui LI Huo-gen |
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| Abstract: | In this paper, authors have investigated the changes of physiologcal indexes of Fraxinus velutina under various NaCl concentrations. The results are as follows:(1)The absolute germination percentage, germination viability, germination index and vitality index decrease with salt concentrations increased.(2) Free proline contents of the leaves of seedling leaves under different salt concentrations increase compared with the control, and the variations among them are noticeable.(3) With NaCl concentrations increased, the contents of Na and the ratio Na /K of leaves increase, But the survival rates of seedlings decrease. |
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| Keywords: | NaCl Fraxinus velutina Free proline Qualitative index of seed germination Na~ /K~ |
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