欢迎访问《应用生态学报》官方网站,今天是 分享到:

应用生态学报 ›› 2004, Vol. ›› Issue (12): 2342-2346.

• 研究论文 • 上一篇    下一篇

酚酸类物质的抑草效应分析

何华勤, 梁义元, 贾小丽, 宋碧清, 郭玉春, 梁康迳, 林文雄   

  1. 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:2004-07-30 修回日期:2004-10-21
  • 通讯作者: 林文雄
  • 基金资助:
    国家自然科学基金项目(30200170,30471028);福建省自然科学基金重大项目(2002F012);福建省自然科学基金资助项目(B0310011)

Weed-suppressive effect of phenolic acids

HE Huaqin, LIANG Yiyuan, JIA Xiaoli, SONG Biqing, GUO Yuchun, LIANG Kangjing, LIN Wenxiong   

  1. Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
  • Received:2004-07-30 Revised:2004-10-21

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、香草酸和阿魏酸对田间伴生杂草稗草的抑制效应.结果表明,肉桂酸对稗草根长抑制率的影响最显著,其关系函数的二次项系数为-6.18,达极显著水平.水杨酸、对羟基苯甲酸和阿魏酸对稗草根长的抑制效应趋势与肉桂酸相同,效应曲线均为“∩”形抛物线;而香草酸的效应曲线则为“∪”形抛物线.当水杨酸、对羟基苯甲酸、肉桂酸、香草酸和阿魏酸浓度水平分别为0.06、0.60、0.24、0.02和0.02mmol·L-1时,混合物对稗草根长的抑制率最大,达到78.65%.

关键词: 化感物质, 酚酸, 抑草效应, 正交旋转回归设计

Abstract: Allelochemical substitutions salicylic acid,p-hydroxybenzonic acid,cinnamic acid,vanillic acid and ferulic acid were tested in a gyrating regression experiment to study the weed-suppressive effect of phenolic acids on the root growth of barnyardgrass.The results showed that cinnamic acid had a significant inhibitory effect,its square item regression coefficient being -6.18; salicylic acid,p-hydroxybenzonic acid and ferulic acid had the same trend of weed-suppressive potential as cinnamic acid,while vanillic acid had a different weed-suppressive effect from the others.The inhibition rate (IR) on the root growth of barnyardgrass reached its highest level (78.5%) when 0.06 mmol稬-1 salicylic acid,0.60 mmol稬-1 p-hydrobenzonic acid,0.24 mmol稬-1 cinnamic acid,0.02 mmol稬-1 vannillic acid and 0.02 mmol稬-1 ferullic acid were mixed together to apply.

Key words: Allelochemical, Phenolic acids, Weed-suppressive effect, Orthogonally gyral regression design

中图分类号: