盐碱胁迫对苗期紫花苜蓿生理特性的影响

草业学报 ›› 2009, Vol. 18 ›› Issue (4): 230-235.

盐碱胁迫对苗期紫花苜蓿生理特性的影响

张永锋^1,2,3,梁正伟¹,隋丽²,崔彦如²

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

收稿日期:2009-03-23 出版日期:2009-08-20 发布日期:2009-08-20
作者简介:张永锋(1965-),男,吉林榆树人,研究员。E-mail: nkyzhyf@126.com

Effect on physiological characteristic of Medicago sativa under saline-alkali stress at seeding stage

ZHANG Yong-feng^1,2,3, LIANG Zheng-wei¹, SUI Li², CUI Yan-ru²

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

Received:2009-03-23 Online:2009-08-20 Published:2009-08-20

摘要/Abstract

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%。

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.

中图分类号:

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.

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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