Study of the Isolation and Antagonistic Effect of Microorganism viz., Trichoderma and Bacillus spp. against Different Isolates of Macrophominaphaseolina [Tassi] Goid. in vitro

摘要

Three fungi and one bacterium viz., T. harzianum, T. viride, T. atroviride and Bacillus sp. isolated from soil Of crop fields were tested in vitro for their antagonistic activity against eight isolates of Macrophominaphaseolina on Czapek's dox agar medium. Inhibition of the mycelium growth (%) of pathogen by T. harzianum, T. viride, T. atroviride and Bacillus sp. varied from 56.53 to 70.87, 53.56 to 64.88, 50.05 to 62.06 and 45.95 to 55.86. T. harzianum inhibited maximum growth of all isolates followed by T. viride, T. atroviride and Bacillus sp. in vitro condition.