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应用生态学报 ›› 2000, Vol. ›› Issue (6): 889-892.

• 研究论文 • 上一篇    下一篇

外施Ca2+、ABA及H3PO4对盐碱胁迫的缓解效应

颜宏1, 石德成1, 尹尚军2, 赵伟3   

  1. 1. 东北师范大学生命科学学院, 长春130024;
    2. 浙江农业技术师范专科学校, 宁波315101;
    3. 长春飞行学院, 长春130022
  • 收稿日期:1998-03-31 修回日期:2000-06-26
  • 通讯作者: 颜宏,女,1972年生,硕士,讲师,主要从事植物生理生态研究,发表论文4篇.
  • 基金资助:
    国家自然科学基金资助项目(39670083).

Effects of Ca2+,ABA and H3PO4 on relaxing stress of Na2CO3 and NaCl

YAN Hong1, SHI Decheng1   

  1. Northeast Normal University, Changchun 130024
  • Received:1998-03-31 Revised:2000-06-26

摘要: 分别对300mmol·L-1NaCl和100mmol·L-1Na2CO3盐碱胁迫下的羊草苗进行以不同方式施加Ca2+、ABA和H3PO4等缓解胁迫处理.结果表明,外施Ca2+、ABA和H3PO4明显缓解了盐碱对羊草生长的抑制作用.叶面喷施效果好于根部处理;施用Ca(NO3)2效果好于施用CaCl2效果;混合施用CaCl2和ABA的效果比单独施用ABA或CaCl2的效果好.

关键词: 羊草, 盐胁迫, 碱胁迫, 胁迫缓解, Ca2+, 脱落酸(ABA), 脯氨酸(Pro)

Abstract: Two groups of Aneurolepidium chinense seedlings were stressed by 300mmol稬-1 NaCl and 100mmol稬-1 Na2CO3,respectively and the effect of ABA,Ca2+ and H3PO4 on relaxing their stress was studied.The results show that external Ca2+,ABA and H3PO4 could obviously mitigat the inhibitory effect of NaCl and NaCO3 on seedling growth. In the treatment of Na2CO3,praying it on leaves had a better effect than root irrigating,while in the treatment of NaCl,there was no significant difference.The effect of Ca(NO3)2 was much better than that of CaCl2,and of mingling CaCl2 and ABA had a much better effect than CaCl2 or ABA alone.

Key words: Aneurolepidium chinense, Saline stress, Alkaline stress, Stress mitigation, Calcium, Abscise acid, Proline