Stems and leaves and roots of two varieties including the Zana and GN-18 vitis vinifera L. plantet as donor materials be used to extract compounds with the method of extraction. Allelochemicals in the aqueous extracts of stems and leaves were analysed by gas chromatography-mass spectrometry (GC/MS). By using Raphanus sativus L.、Lactuca sativa L.、Brassica campestris L. as receptor, the allelopathy and allelopathic mechanism of different concentrations aqueous extracts of two varieties were studied by...