| 盐碱胁迫对苗期紫花苜蓿生理特性的影响 |
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| 引用本文： | 张永锋,梁正伟,隋丽,崔彦如.盐碱胁迫对苗期紫花苜蓿生理特性的影响[J].草业学报,2009,18(4):230-235. |
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| 作者姓名： | 张永锋 梁正伟 隋丽 崔彦如 |
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| 作者单位： | 1.中国科学院东北地理与农业生态研究所, 吉林 长春 130012; 2.吉林省农业科学院, 吉林 长春 130124; 3.中国科学院研究生院, 北京 100039 |
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| 摘 要： | 以紫花苜蓿公农1号为试验材料,研究了在不同浓度的盐碱胁迫下,苗期紫花苜蓿生理生化特性指标(可溶性糖、脯氨酸、束缚水和自由水、叶片持水力)的变化情况。结果表明,随着盐碱胁迫浓度的增大,公农1号中可溶性糖和脯氨酸的含量均有一定的上升趋势,最大值分别达到87.16%和753.49 μg/g;束缚水与自由水比率随着盐碱浓度的增加逐渐增大,经盐碱处理7 d后,束缚水/自由水达到0.94;而随着盐碱胁迫浓度的增大,离体叶片持水力下降了12%~48%。
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| 关 键 词： | 紫花苜蓿 盐碱胁迫 生理特性 |
| 收稿时间： | 1900-01-01; |
Effect on physiological characteristic of Medicago sativa under saline-alkali stress at seeding stage |
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| ZHANG Yong-feng,LIANG Zheng-wei,SUI Li,CUI Yan-ru.Effect on physiological characteristic of Medicago sativa under saline-alkali stress at seeding stage[J].Acta Prataculturae Sinica,2009,18(4):230-235. |
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| Authors: | ZHANG Yong-feng LIANG Zheng-wei SUI Li CUI Yan-ru |
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| Institution: | 1.Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun 130012, China; 2.Jilin Academy of Agricultural Sciences, Changchun 130124, China; 3.Graduate School of Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | Under different saline-alkali stress, the physiological biochemistry response of Medicago sativa Gongnong No.1 leaves were studied. The content of soluble sugar and proline were increased with saline-alkali concentration increasing, could be up to 87.16% and 753.49 μg/g respectively; The rate of bound water increases gradually when increasing saline-alkali concentration, but the rate of free water had no remarkable change, the rate of bound water/free water was 0.94; Water retaining capacity of isolated leaves decreased 12%-48%, when increasing saline-alkali concentration. |
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| Keywords: | Medicago sativa saline-alkali stress physiological characteristic |
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