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外来入侵植物银胶菊水提物对三叶鬼针草和茶条木种子萌发的化感作用 被引量:21

Allelopathic effects of Parthenium hysterophorun aqueous extract on germination of Bidens pilosa and Delavaya toxocarpa
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摘要 以伴生草本植物三叶鬼针草和能源木本植物茶条木为受试植物,初步研究了外来入侵植物银胶菊根、茎、花水浸提液对二者种子萌发的化感效应。根据发芽率、化感效应敏感指数、发芽速率可以看出,银胶菊不同部位的浸提液在不同浓度下对三叶鬼针草的种子萌发的影响力不同;而对茶条木种子萌发无明显的作用。为选择适宜植物,生物替代防治银胶菊提供依据。 The seeds of accompanied species Bidens pilosa and energy plant Delavaya toxocarpa were treated with the aqueous extracts of root,stem and flower of Parthenium hysterophorus.The germination rate,index of allelopathic effect and germination speed of seeds were measured.The results showed that aqueous extracts from three parts of P.hysterophorus had different effects on the seed germination of B.pilosa under different concentrations,while that didn't work on D.toxocarpa.This experiment will provide reference basis for choosing feasible plant to against P.hysterophorus by biological control strategy.
出处 《广西植物》 CAS CSCD 北大核心 2008年第4期534-538,共5页 Guihaia
基金 中国科学院“西部之光”人才培养计划项目([2005]404) 广西科学基金(0575116) 广西科技攻关项目(0719005) 广西青年基金(0728077)~~
关键词 银胶菊 化感作用 种子萌发 三叶鬼针草 茶条木 Parthenium hysterophorus allelopathy seed germination Bidens pilosa Delavaya toxocarpa
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参考文献19

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