Allelopathic Effects of Eupatorium adenophorum Spreng on Six Species of Leguminosae

The aim of this study was to determine the effect of aqueous leaf extract from E.adenophorum on seed germination and seedling growth and explore the mechanism of allelopathy of E.adenophorum Spreng.A bioassay method was used to detect seed germination and seedlings growth of six species belonged to the Leguminosae after treated with different concentration aqueous leaf extract of E.adenophorum.The results indicated that aqueous leaf extracts of E.adenophorum had very different impacts on germination rate and seedling growth for different species tested in this study.Vigna radiata,Pisum sativum and Glycine max were sensitive to the allelopathy of E.adenophorum,while Phaseolus vulgaris was not.