欢迎访问《生态学杂志》官方网站,今天是 分享到:

生态学杂志 ›› 2003, Vol. ›› Issue (5): 66-69.

• 博士论坛 • 上一篇    下一篇

不同pH的酚酸溶液对杉木及萝卜幼苗生长的影响

黄志群1, 汪思龙1, 何宗明2   

  1. 1. 中国科学院沈阳应用生态研究所, 沈阳, 110016;
    2. 福建农林大学福建杉木研究中心, 南平, 353001
  • 收稿日期:2002-04-15 修回日期:2002-05-20 出版日期:2003-05-10
  • 基金资助:
    中国科学院知识创新工程资助项目(KZCX2-406)

Effects of phenolics solution with different pH on the growth of Cunninghamia lanceolata and Raphanus sativus seedlings

HUANG Zhiqun1, WANG Silong1, HE Zongmin 2   

  1. 1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
    2. Centre of Fujian Chinese Fir Research, Fujian Agricultural and Forestry Universersity, Nanping 353001, China
  • Received:2002-04-15 Revised:2002-05-20 Online:2003-05-10

摘要: 通过四因素五水平的二次回归正交旋转试验设计,研究pH值、肉桂酸、对羟基苯甲酸、香草醛四个因素对杉木和萝卜幼苗生长的影响.结果表明,杉木幼苗的鲜重生长随酚酸溶液的pH值的增大而增加,而随肉桂酸、对羟基苯甲酸和香草醛浓度的增大而减小.比较3种不同酚类物质对杉木幼苗生长的影响,肉桂酸对杉木幼苗生长的影响>对羟基苯甲酸>香草醛,且pH值与肉桂酸之间;肉桂酸与香草醛之间;对羟基苯甲酸与香草醛之间的交互作用都达到显著水平.萝卜幼苗生长对不同pH的酚酸溶液的反应与杉木幼苗相类似,随酚酸溶液的pH值的增大而增加,而随肉桂酸、对羟基苯甲酸和香草醛浓度的增大而减小.但对羟基苯甲酸对萝卜幼苗生长的影响>肉桂酸>香草醛,酚酸溶液的pH值与所有3种酚酸之间的交互作用都达到显著水平;肉桂酸与香草醛的交互作用对萝卜幼苗生长的影响也达到F0.01水平显著.

关键词: 流域, 湿地景观, 破碎化过程

Abstract: Using rotational quadratic regression design,effects of pH,cinnamic acid,p-hydrobenzoic,and vallic acids on the growth of Cunninghamia lanceolata and Raphanus sativus seedlings were examined. Results showed that the growth of C. lanceolata seedlings decreased as the pH value of solutions decreased,while the growth of C. lanctolata seedlings increased as the concentration of cinnamic acid,p-hydrobenzoic,and vallic acids in solutions decreased. As far as the effects of phenolics on the growth of C. lanctolata seedlings are concerned,cinnamic acid was the most obvious,p-hydrobenzoic acid was less,and vallic acid was the least. Significant interaction was observed between the pH value and cinnamic acid,and between cinnamic acid and vallic acid,and between p-hydrobenzoic acid and vallic acid. The effects on the growth of R. sativus seedlings were similar to the C. lanctolata seedlings. However,the effect of p-hydrobenzoic acid on the growth of R. sativus seedlings was the most oboious,cinnamic acid was less,and vallic acid was the least. Significant interaction was detected between pH and all three phenolics,and between cinnamic acid and vallic acid when the target plant was R. sativus seedlings.

Key words: Watershed, Wetland landscape, Fragmentation process

中图分类号: