草地学报

›› 1998, Vol. 6 ›› Issue (1): 20-25.DOI: 10.11733/j.issn.1007-0435.1998.01.003

• 研究论文 • 上一篇    下一篇

在NaCl胁迫下羊草幼苗生理反应及外源钙的缓解效应

王萍1, 周天2   

  1. 1. 东北师范大学国家草地生态工程实验室, 长春 130024;
    2. 长春师范学院生物系, 长春 130032
  • 出版日期:1998-02-15 发布日期:1998-02-15

A Study of one Responses of the Seedling of Leymus chinensis and Ca2+ Action Under Different Treatments of NaCl

Wang Ping1, Zhou Tian2   

  1. Institute of Grassland Science, Northeast Normal University, Changchun 130024
  • Online:1998-02-15 Published:1998-02-15

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摘要： 在不同浓度NaCl营养液模拟的土壤盐化胁迫条件下,研究盐分对羊草的生理和代谢反应,结果表明,羊草对Na+胁迫的适应方式以耐胁性为主,通过吸收无机离子和积累脯氨酸进行渗透调节。在Na+胁迫基础上进行钙处理,结果表明外源钙对Na+危害有-定的缓解效应。可为今后治理盐碱化草场提供新的途径。

关键词: NaCl胁迫, 渗透调节, 钙处理, 羊草幼苗

Abstract: The physiological responses of the leaves of bo chinensis under NaCl+ stress andmitigating action of Ca to NaCl stass were studied.The asults show tha L.chinensis adopted to salin-ization drinly by toleance to Na+ as increase of Na+ as increase of proline for permeability regulation.Under salt stress condition, the external souroe of Ca2+ could increase of chlorophyle content of the leavesand incna of photosyntheisis, which mitigated Na+ stress.

Key words: NaCl stress, Permeability, Ca2+ treatmeat