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应用生态学报 ›› 1999, Vol. 10 ›› Issue (6): 661-664.

• 研究论文 • 上一篇    下一篇

杉木自毒作用的研究

林思祖1, 黄世国1, 曹光球1, 黄志群2   

  1. 1. 福建林学院杉木研究中心, 南平353001;
    2. 中国科学院沈阳应用生态研究所, 沈阳110015
  • 收稿日期:1998-05-15 修回日期:1999-06-18 出版日期:1999-11-25 发布日期:1999-11-25
  • 通讯作者: 林思祖,男,46岁,教授,在职博士,主要从事森林生态学研究,发表论文50余篇.E-mail:Linsizu@21CN.com E-mail:Linsizu@21CN.com
  • 基金资助:

    福建省自然科学基金(97-Z-219).

Autointoxication of Chinese fir

Lin Sizu1, Huang Shiguo1, Cao Guangqiu1, Huang Zhiqun2   

  1. 1. Center of Chinese Fir Research, Fujian Foresty College, Nanping 353001;
    2. Institute of Applied Ecology, Academia Sinica, Shenyang 110015
  • Received:1998-05-15 Revised:1999-06-18 Online:1999-11-25 Published:1999-11-25

摘要: 对杉木自毒作用研究表明,杉木纯林中的土壤、枯落叶、半分解枯落叶和杉木鲜叶、枝条、树皮、树根的水浸液及其添加乙烯吡咯啉酮k30(PVP)的溶液对杉木种子、空心菜种子和萝卜种子的萌发均有影响。所有水浸液均表现出高浓度下抑制种子萌发,随着浓度降低,抑制作用减弱、消失,甚至转变为促进作用的规律;其中根和鲜叶水浸液抑制作用最强,但水浸液添加PVP后抑制作用明显减弱,且在低浓度时表现出促进作用。

关键词: 杉木, 自毒作用, 发芽试验, 播期, 品质, 内蒙古西部荒漠区, 棉花, 养分吸收利用, 产量

Abstract: Studies on the autointoxication of Chinese fir show that the aqueous extracts of surface soil, leaf litter, half decaying leaf litter, fresh leaf, branch, bark and root in pure Chinese fir plantation and their polyvinyl pyrrolidone k30 (PVP) solutions affected the seed germination of Chinese fir, Raphanus sativous and water convolvulus. At high concentration of aqueous extracts, seed germination was significantly inhibited, while with decreasing concentration, the inhibitory effects got weaker, disappeared and even turned into stimulating effects. The aqueous extracts added PVPsignificantly weakened the inhibitory effect, and exhibited enhancement effect at low concentration.

Key words: Chinese fir, Autointoxication, Germination experiment, cotton, sowing date, yield, uptake and utilization of nutrient, fiber quality, Inner Mongolia west desert area