%0 Journal Article
%T Allelopathic effects of invasive weed Solidago canadensis on native plants<br>外来杂草加拿大一枝黄花对入侵地植物的化感效应
%A MEI Lingxiao
%A CHEN Xin
%A TANG Jianjun
%A <br>梅玲笑
%A 陈欣
%A 唐建军
%J 应用生态学报
%D 2005
%I 
%X With growth chamber method, this paper studied the allelopathic potential of invasive weed Solidago canadensis on native plant species. Different concentration S. canadensis root and rhizome extracts were examined, and the test plants were Trifolium repens, Trifolium pretense, Medicago lupulina, Lolium perenne, Suaeda glauca, Plantago virginica, Kummerowia stipulacea, Festuca arundinacea, Ageratum conyzoides, Portulaca oleracea, and Amaranthus spinosus. The results showed that the allelopathic inhibitory effect of the extracts from both S. canadensis root and rhizome was enhanced with increasing concentration, and rhizome extracts had a higher effect than root extracts. At the lowest concentration (1:60), root extract had little effect on the seed germination and seedling growth of T. repens, but rhizome extract could inhibit the germination of all test plants though the inhibitory effect varied with different species. The inhibition was the greatest for grass, followed by forb and legume. 1:60 (m:m) rhizome extract had similar effects on seed germination and radicel growth, but for outgrowth, the extract could inhibit Kummerowia stipulacea, Amaranthus spinosus and Festuca arundinacea, had no significant impact on Lolium perenne, Plantago virginica, Ageratum conyzoides, Portulaca oleracea and Amaranthus spinosus, and stimulated Trifolium repens, Trifolium pretense and Medicago lupulina.
%K Solidago canadensis
%K Allelopathic effects
%K Extract
%K Bioassay<br>一枝黄花
%K 化感作用
%K 浸提液
%K 生物测定
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=254940DB9D75938E&yid=2DD7160C83D0ACED&vid=7801E6FC5AE9020C&iid=59906B3B2830C2C5&sid=449C92630EF78424&eid=E65CF17C571E9149&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=41&reference_num=19