湖南农业大学学报（自然科学版）2011，Vol.37Issue(6)：624-626,3.DOI:10.3724/SP.J.1238.2011.00624
胜红蓟和三叶鬼针草的自化感作用
Self-allelopathy of aquatic extracts from different parts of Ageratum conyzoides and Bidens pilosa
摘要
Abstract
Filter paper method using petri dishes was applied to determine the self-allelopathy of Ageratum conyzoides L. And Bidens pilosa L. Effects of aquatic extracts from roots, stems and leaves of each plant were tested under concentrations of 0, 0.10, 0.25 and 0.50 g/mL on seedling root length, height and fresh weight of their own plant. The result showed both plants exhibited self-allelopathy: aqueous extracts showed obvious inhibition on seedling root length, the inhibition effects increased with increasing concentration of the aqueous extracts; showed double effects on the height of the seedling, which promoted seedling height in low concentration but inhibited in high concentration; and showed marked inhibition on fresh weight under higher concentrations.关键词
胜红蓟/三叶鬼针草/自化感作用Key words
Ageratum conyzoides L./ Bidens pilosa L/ self-allelopathy分类
农业科技引用本文复制引用
江贵波,黄丹莹,黄兰妹,林国威..胜红蓟和三叶鬼针草的自化感作用[J].湖南农业大学学报（自然科学版）,2011,37(6):624-626,3.基金项目
广东省教育科研"十一·五"规划项目(2010tjk335) （2010tjk335）
揭阳职业技术学院项目(JYCKY1004) （JYCKY1004）
