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应用生态学报 ›› 1997, Vol. 8 ›› Issue (4): 439-444.

• 研究论文 • 上一篇    下一篇

Se和环境中富里酸对小麦种子发芽的影响及其生理特性

徐云, 王子健, 王文华, 彭安   

  1. 中国科学院生态环境研究中心, 北京 100085
  • 收稿日期:1995-03-24 修回日期:1995-08-21 出版日期:1997-07-25 发布日期:1997-07-25
  • 基金资助:

    国家自然科学基金

Effect of selenium and fulvic acid on seed germination of wheat and its physiological properties

Xu Yun, Wang Zijian, Wang Wenhua, Peng An   

  1. State Key Laboratory of Environmeatal Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Academia Sinica, Beijing 100085
  • Received:1995-03-24 Revised:1995-08-21 Online:1997-07-25 Published:1997-07-25

摘要: 利用种子发芽实验研究了亚硒酸钠(Na2SeO3)和从土壤中提取的富里酸(Fulvicacid,FA)对小麦种子发芽和生长的影响,以及FA对亚硒酸钠毒性的抑制作用.结果表明.FA和低浓度Na2SeO3对种子发芽及发芽后的生长有促进作用,高浓度Na2SeO3明显降低种子发芽率、种子活力、α-淀粉酶活性及幼苗的生长,FA对亚硒酸钠的毒性有一定的抑制作用.

关键词: 冬小麦, 富里酸, 硒, 种子发芽, 果实品质, 吸收, 15N-尿素, 损失, 供氮水平, 苹果, 利用

Abstract: The effect of selenite and soil-extracted fulvic acid (FA) on seed germination of wheat and its growth and that of FA on inhibiting the toxicity of selenite are studied by ed germination test. The results show that FAand low concentration Na2SeO3 can promote the seed germination of wheat and its seedling growth, while high concentration of selenite reduces the germination rate of seed. its vigor and α-arnylase activity, and the growth of seedling markedly. FA has a definite effect on the inhibition of selenium toxicity.

Key words: Wheat, Fulvic acid, Selenium, Seed germination, fruit quality, apple, utilization, absorption, 15N-urea, loss, nitrogen level