原产地和入侵地飞机草化感作用比较  

Comparison of the Allelopathic Effects Between Native and Invasive Chromolaena odorata

作　　者：王锐[1] 陈曦[1] 丁国华[1] 

机构地区：[1]哈尔滨师范大学生命科学与技术学院,黑龙江省高等院校植物学重点实验室,黑龙江哈尔滨150025

出　　处：《北方园艺》2013年第10期66-69,共4页Northern Horticulture

基　　金：国家自然科学基金重点资助项目(30830027);黑龙江省高校科技创新团队研究计划资助项目(KJTD-2011-2);哈尔滨师范大学科技发展预研资助项目

摘　　要：利用培养皿滤纸法研究了来自原产地(墨西哥)和入侵地(西双版纳)的飞机草叶片的水浸提液对紫羊茅、紫花苜蓿、黑麦草和甘蓝4种受体植物种子萌发的化感效应。结果表明:飞机草叶片水浸提液对4种受体植物均有化感作用,但作用程度(敏感指数)因受体植物不同而不同,表现为紫花苜蓿>紫羊茅>黑麦草>甘蓝,且差异显著。不同浓度水浸提液的化感作用强度不同,总体呈现浓度越高化感作用越强。比较2种生态型飞机草的化感效应,显示二者之间差异不显著,说明化感作用在飞机草入侵时可能不是其主要效力。The allelopathy of two kinds of Chromolaena odorata blade aqueous extracts on seeds germination of Festuca rubra ,Medicago sativa, Lolium perenne and Brassica oleracea were investigated by means of petri dishes and filter papers. One of those two kinds Chrornolaena odorata comes from original country （Mexico） and the other comes from invaded area （Sipsongpanna）. The results showed that the allelopathy of blade aqueous extracts were different among those tested plants, with Medicago sativa being the most effected, Festuca rubra being more effected than Lolium perenne and Brassica oleracea being the least effected. It also showed that the concentrations of aqueous extracts were proportional to the strength of allelopathy. By comparing the allelopathy of original with invasion, it found that there was no significant difference between those two kinds Chrornolaena odorata, which indicated that the allelopathy wouldn＇ t play an important role in fragrant eupatorium herb＇s invasion.

关 键 词：飞机草 化感作用 种子萌发 入侵 

分 类 号：S451[农业科学—植物保护]