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《Acta Botanica Boreali-Occidentalia Sinica》 2009-01
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Allelopathic Effect of Water Extracts from the Different Organizations of Alternanthera philoxeroides on Germination and Seedling Growth of Lolium perenne

ZHANG Zhen1,XU Li2,MA Yan-ting1,LI Juan1(1 College of Resources and Environment,Anhui Agricultural University,Hefei 230036,China;2 College of Plant Protection,Anhui Agricultural University,Hefei 230036,China)  
Indoor petri dish bioassay was adopted to study allelopathic function of the different organizations of Alternanthera philoxeroides.The results showed that the water extracts of the host plant inhibited the germination and final percent germination of Lolium perenne.The extract also inhibited the growth of the latter roots and stem.Some physiological and biochemical indexes of treated L.perenne indicated that the extract of the host plant by water increased the relative conductivity,and remarkably reduced the content of chlorophyll.Morever,the inhibition of allelopathy from underground organizations was stronger than that from aboveground parts at the same concentration.
【Fund】: 安徽农业大学校长青年基金(2007qnr08);; 安徽农业大学引进和稳定人才基金(20061201);; 安徽省农产品安全重点实验室2007年度开放基金(Las200701);; 安徽省2009年高校优秀青年人才基金项目(自然科学)
【CateGory Index】: S451
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