Research on Herbicide Activity and Active Constituent of the Methanolic Extract of Clausena lansium(Lour.) Skeels
[Aims] To study on the herbicide activity and active constituent of the methanolic extract of Clausena lansium(Lour.) SkeeJs. [Methods] By separating with silica column chromatography and TLC methods, guided by bioassay of herbicidal activity. [Results] Bioassay revealed that the leaf of C. lansium(Loiu.) Skeels was very excellent against E. crusgalli (L.) Beauv., two constituents were isolated from C. lansium, they were identified as anisolactone and 2',3'-epoxyanisolactone by spectroscopic methods. Bioassay results revealed that at the concentration of 80 mg/L, the inhibition rate of 2',3'-epoxyanisolactone against root growth, shoot growth and fresh weight of E. crusgalli (L.) Beauv were 96.00, 84.71 and 89.85% respectively. [Conclusions] The methanolic extract of C. lansium(Lour.)Skeels has good effect on E. crusgalli (L.).
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万方数据
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