1College of Environment and Plant Protection，Hainan University，Haikou 570228，Hainan，China；2Institute of Environment and Plant Protection，Chinese Academy of Tropical Agricultural Sciences，Haikou 571101，Hainan，China；3Hainan Entry-Exit Inspection and Quarantine Bureau，Haikou 570311，Hainan，China；4Hainan Meteorological Bureau，Haikou 570203，Hainan，China
With 8 kinds of common cultivation of vegetables in Hainan as receiver plants，indoor bioassay method was used to study the allelopathy of aqueous extracts of Momordica charantia leaves and stems．The results showed that the aqueous extracts of M. charantia leaves and stems to 8 kinds of receiver plants seed germination and seedling growth were the allelopathic effect of a certain，but the way and strength of allelopathy among species and indexes were significantly different．Integrated allelopathic effects of the average size were order to Capsicum annuum ＞ Cucumis sativus ＞ Vigna unguiculata ＞ Phaseolus vulgaris ＞ Raphanussativus ＞Lycopersicon esculentum var. cerasiforme ＞ Daucus carota ＞ Lycopersicon esculentum．The research results provided theoretical and experimental basis for the establishment of a reasonable cultivationsystem．
