几种化感物质替代物间的互作效应分析

应用生态学报 ›› 2005, Vol. 16 ›› Issue (5): 890-894.

几种化感物质替代物间的互作效应分析

何华勤, 沈荔花, 宋碧清, 郭玉春, 梁义元, 梁康迳, 林文雄

福建农林大学生命科学学院, 农药与化学生物学教育部重点实验室, 福州 350002

收稿日期:2004-11-15 修回日期:2005-01-25 出版日期:2005-05-15 发布日期:2005-05-15
通讯作者: 林文雄,E-mail:zjwxlin@pub5.fz.fj.cn
基金资助:
国家自然科学基金项目(30200170、30471028)和福建省科学技术重大资助项目(2002F012、2004NZ01-4).

Interactive effects between allelochemical substitutes

Key Laboratory of Pesticide and Chemical Biology of Education Ministry, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China

Received:2004-11-15 Revised:2005-01-25 Online:2005-05-15 Published:2005-05-15

摘要/Abstract

摘要： 运用正交旋转回归试验设计分析5种常见的化感物质替代物水杨酸、对羟基苯甲酸、肉桂酸、香草酸和阿魏酸间对稗草根长的互作效应,以探明化感物质抑草作用机理.结果表明,水杨酸和对羟基苯甲酸、水杨酸和肉桂酸间增效或拮抗的互作效应与各因子在化合物中浓度水平密切相关.水杨酸在浓度<0.14mmol·L^-1时,对对羟基苯甲酸表现为增效作用;当浓度>0.14mmol·L^-1时,则表现为拮抗作用.而对羟基苯甲酸在浓度为0.425mmol·L^-1时,对水杨酸表现为拮抗作用.在所考察的浓度范围内,水杨酸对肉桂酸都具有拮抗作用,而肉桂酸在浓度为0.14mmol·L^-1时对水杨酸表现出拮抗作用.在所考察的浓度范围中,香草酸与肉桂酸的作用效果都是增效的.

关键词: 化感物质, 替代物, 互作效应, 增效, 拮抗

Abstract: In order to understand the allelopathic mechanisms of rice on weed,the allelochemical substitutes salicylic acid,p-hydroxybenzonic acid,cinnamic acid,vanillic acid and ferulic acid were used in an orthogonally gyrating regression experiment to study their interactive effects on the growth of barnyardgrass.The results indicated that whether the interactive effects between two substitutes,e.g.,between salicylic and cinnamic acid or between salicylic and p-hydrobanzonic acid,were synergistic or antagonistic depended on the concentrations of each substitutes in the mixture.In the mixture of salicylic acid and p-hydrobanzonic acid,the effect of salicylic acid was synergistic at <0.14 mmol稬^-1 but antagonistic at >0.14 mmol稬^-1,while p-hydrobanzonic acid showed an antagonistic effect at >0.425 mmol稬^-1.Salicylic acid at all test concentrations exhibited antagonism to cinnamic acid,while cinnamic acid had a synergistic at <0.14 mmol稬^-1,but an antagonistic effect at >0.14 mmol稬^-1 on alicylic acid.The interactive effects between cinnamic and ferulic acid were all synergistic at test concentrations.

Key words: Allelochemical, Substitute, Interactive effect, Synergistic, Antagonistic

中图分类号:

Q946

何华勤, 沈荔花, 宋碧清, 郭玉春, 梁义元, 梁康迳, 林文雄. 几种化感物质替代物间的互作效应分析[J]. 应用生态学报, 2005, 16(5): 890-894.

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