Abstract

Trichoderma aureoviride restricted the mycelial growth and sclerotial initiation in a virulent isolate of Rhizoctonia solani over culture medium by 52.7 and 95.3% respectively. Microscopic examination of the R. solani mycelium near the inhibition zone revealed that more than 25% of the mycelia were lysed and most of the hyphal tips showed bulb-like terminal enlargements. Pot culture experiments showed that soil amendment with T. aureoviride brought down considerably the incidence and severity of the sheath blight disease in TKM-9 rice.

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