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cje ›› 2004, Vol. ›› Issue (3): 128-130.

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Preliminary study on allelopathic potential of alfalfa (Madicago sadiva L.)

ZHU Xiaohong1,2, WANG Peng1, LIANG Wenju1, JIANG Yong1, ZANG Shuliang2   

  1. 1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
    2. College of Chemistry and Chemical Engineering, Liaoning University, Shenyang 110036, China
  • Received:2003-10-20 Revised:2004-01-13 Online:2004-06-10

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Abstract: The allelopathic potential of alfalfa (Madicago sadiva L.) was preliminarily studied by using the bioassay and GC/MS.The results showed that the germination of maize,wheat and soybean were significantly inhibited by aqueous and 95% ethanol extracts from alfalfa.Further isolation of alfalfa extracts was carried out with column chromatography.Inhibition of the isolated fractions differed from that of the extracts.Allelochemicals of alfalfa on maize germination were low polarity,while allelochemicals of alfalfa on wheat germination were both low and high polarity.The potential allelochemicals of alfalfa were phenolics and saponins identified with GC/MS.

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