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林业科学 ›› 2008, Vol. 44 ›› Issue (9): 157-161.doi: 10.11707/j.1001-7488.20080928

• 论文 • 上一篇    下一篇

盐碱胁迫下合欢种子的抗逆萌发生理

张大鹏 曹帮华 贾波 唐全   

  1. 山东农业大学林学院,泰安271000
  • 收稿日期:2007-08-16 修回日期:1900-01-01 出版日期:2008-09-25 发布日期:2008-09-25
  • 通讯作者: 曹帮华

Germination and Physiological Response of Albizia julibrissin Seeds under Alkali-Salt Stress

Zhang Dapeng,Cao Banghua,Jia Bo,Tang Quan   

  1. Forestry College,Shandong Agriculture University Tai'an 271000
  • Received:2007-08-16 Revised:1900-01-01 Online:2008-09-25 Published:2008-09-25

关键词: 合欢, 盐碱胁迫, 种子萌发, 酶活性

Abstract: A neutral salt(NaCl) solution and various mixed salt(NaCl,Na2SO4,NaHCO3,Na2CO3 in different proportions) solutions with different pH values were used to imbibe Albizia julibrissin seeds to simulate alkali-salt stresses.Results indicated that there were significantly negative correlations between germination rate,germination energy,germination index and vigor index of the stressed seeds and the salt concentrations.With the increasing of salt concentrations,the activities of SOD,POD and CAT displyed a mold of increasing at beginning and then decreasing.The mixed salts exerted stronger stress on young seedlings than the neutral salt.It was found that there was an obvious synergism between salt stress and pH stress and the mixed salts were more harmful than neutral salt to the seed germination and the seedlings of Albizia julibrissin.

Key words: Albizia julibrissin, alkali-salt stress, seed germination, enzymatic activity