The effect of different antagonist ’ viz. Trichoderma viride Pseudomonas fluorescens and
Bacillus substilis were evaluated against different seed borne fungi of rice by dual culture technique. Among
three bio agents Trichoderma viride (42.59 to 73.33%) followed by Bacillus subtilis and Psuedomonas
fluorescens over control. Significant suppression of radial mycelial growth of Drechslera oryzae by Trichoderma
viride, and Trichoderma harzianum in dual culture and Inhibition of Curvularia lunata causing black kernel in
rice with Bacillus subtilis (97.77%) followed by Trichoderma viride (96.44%) and Trichoderma harzianum
(93.50%) in dual culture method.
Key words : Rice, seed borne pathogen, bio agents in vitro.