Nav Raj Bhusal¹ , Basistha Acharya² , A.R. Devkota¹

1 Agriculture and Forestry University, Chitwan, Nepal
2 Regional Agriculture Research Station, Nepal Agricultural Research Council, Khajura, Nepalgunj, Nepal
Author    Correspondence author
Field Crop, 2018, Vol. 1, No. 4   
Received: 08 Jun., 2018    Accepted: 28 Jun., 2018    Published: 20 Jul., 2018

This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

An experiment was conducted to evaluate the efficacy of Trichoderma viride in the management of leaf blast of rice under field condition of Pyuthan district in 2017. The experiment was laid out in factorial randomized complete block design with five replications. The treatment consisted of two rice varieties improved Sabitri and a local Radha 7, and two rates of Trichodermaviride (5 ml/lit. and 0 ml/lit.). The leaf blast was scored thrice from 75 to 85 days to sowing at 5 days interval. The disease incidence, severity and AUDPC value were calculated and analyzed by using RSTAT. The variety and Trichoderma viride dose varied significantly for leaf blast incidence, severity and AUDPC, however, the interaction of variety and Trichoderma viride factor varied significantly only in AUDPC value. Disease incidence, severity and AUDPC were less in Sabitri in comparison to Radha 7. The interaction of Sabitri and Trichoderma viride treatment was found best with the mean AUDPC value being the least 3.228. So, the application of Trichoderma viride was found efficient for leaf blast management and it is more effective when applied along with an improved and resistant variety.

Rice blast; Biocontrol; Trichoderma viride; Sabitri; AUDPC