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植物研究 ›› 2002, Vol. 22 ›› Issue (1): 37-41.

• 论文 • 上一篇    下一篇

NaCl胁迫对耐旱性不同的小麦生长及溶质含量的影响

张海燕   

  1. 山西师范大学生物系, 临汾 041004
  • 收稿日期:2001-02-16 出版日期:2002-03-15 发布日期:2016-06-14
  • 作者简介:张海燕(1971-),女,讲师,主要从事植物抗性生理研究。

EFFECTS OF NaCl STRESSON GROWTH AND CONTENT OF SEVERAL SOLUTES OF WHEAT CULTIVARS WITH DIFFERENT DROUGHT-TOLERANCE

ZHANG Hai-yan   

  1. Depar tment of Biology, Shanxi Teachers' University, Linfen 041004
  • Received:2001-02-16 Online:2002-03-15 Published:2016-06-14

摘要: 用不同浓度NaCl溶液处理耐旱性不同的两个小麦品种(鲁麦14和晋旱47),研究了NaCl胁迫对幼苗生长及几种溶质含量的影响。结果表明:NaCl处理引起小麦幼苗株高及根长度下降,旱敏感品种鲁麦14比耐旱品种晋旱47下降幅度大。同时晋旱47的Na+含量增加较缓慢,根部及地上部均表现出较强的拒Na+特性,无明显拒Cl-性;脯氨酸和氨态氮含量增加,NO3-含量下降平缓,根部K+含量保持相对稳定。说明晋旱47的抗盐能力远远大于鲁麦14。

关键词: 小麦, NaCl胁迫, 离子含量, 耐旱性, 耐盐性

Abstract: Two wheat cultivars(Lumai-14 and Jinhan-47) with different drought-tolerance were treated with NaCl solutions. Effects of NaCl stress on growth and content of several solutes of seedlings were studied. Results showed that NaCl treatment caused a decrease in length of shoots and roots of wheat seedlings, and the degree of decrease was higher in drought-tolerance cultivar(Jinhan 47) than in drought-sensitive one(Lumai-14). Na+ contents increased slowly and Na+-exclusion capability in shoots and roots of Jinhan-47 was stronger than that of Lumai-14. Furthermore, higher proline and aminonitrogen contents, a smaller decrease in NO3- contents and a relative stability of K+ contents in roots of Jinhan-47 were found. These suggests that salt-tolerant ability of Jinhan-47 is much stronger than Lumai-14.

Key words: Wheat, NaCl treatment, ionic content, drought-tolerance, salt tolerance