75 bacterial strains were isolated from different types of habitats and after preliminary screening, 12 strains were selected for study. Dilute culture filtrate showed different types of allelopathic effects on the rate of seed germination, and development of radicle and hypocotyl region of six different plant materials viz. Amaranthus sp., Amaranthus gangeticus L., Raphanus sativus L., Vigna mungo (L.) Hepper., Vinga radiata (L.) Wilizek and Lens esculenta Moench. Four bacterial strains (3LF-9, 3BF-2, SN-3 and SHP-4) showed significant inhibitory effect to seed germination of Raphanus...