Title: Allelopathy of Root Exudates of Onobrychis viciaefolia on 7 Kinds of Weed
Abstract: [Objective] The aim was to provided the theoretical basis for further study on allelopathy of Onobrychis viciaefolia.[Method] The root exudates of O.viciaefolia were extracted with tissue culture techniques,and the effects of root exudates with different concn.(0(CK),12.5,25,50,100 mg/ml)on seed germination and seedling growth of Amaranthus retroflexus L.,Setaria viridis (L.) Beauv.,Avena fatua L.,Solanum nigrum,Imperata cylindrica(L.) Beauv.,Chenopodium album and Echinochloa crusgalli(L.) Beauv.were studied.[Result] The root exudates of O.viciaefolia had inhibition on seed germination and seedling growth of 7 kinds of weed,and the higher the treatment concn.was the stronger the inhibition was,when the treatment concn.of root exudates was 100 mg/ml,the germination rate of C.album.A.retroflexus,A.fatua were only 6.6%,10% and 10% resp.and the germination indexes of A.retroflexus,A.fatua.,S.nigrum and E.crusgalli were all lower than 1.The inhibition of root exudates of O.viciaefolia on seed germination of C.album was the biggest,the inhibition rate reached 91.9%,the inhibition rates of root exudates on seed germination of S.nigrum,I.cylindrical and S.viridis were all lower.[Conclusion] The allelopathy of root exudates of O.viciaefolia on different weeds was different.
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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Cited By Count: 2
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