A preliminary study was made on the allelopathy of liquid extract of Allium
ascalonicum L.to Lactuca sativa L.,Brassica chinensis L.,Raphanus sativus L.and Cucumis
sativus L.The results showed that the extract from Allium ascalonicum L.had some inhibit
effect on the germination of seed of Lactuca sativa L.and Raphanus sativus L.,had little
inhibit effect on the germination of seed of Brassica chinensis L.and Cucumis sativus L.The
results showed some stimulating effect on the growth of Lactuca sativa L.,Brassica
chinensis L.,Raphanus sativus L.and Cucumis sativus L.,as a whole.