In vitro Evaluation of Fungicides against Bipolaris sorokiniana Causing Spot Blotch of Barley (Hordeum vulgare L.)

An experiment conducted in Plant Pathology Laboratory Narendra Deva University of Agriculture and Technology, Narendra Nagar, Kumarganj, Faizabad (U.P.) during 2015 Efficacy of 15 fungicides ware evaluated at 0.05%, 0.5%, 0.1% and 2% for studying their inhibitory effect on the mycelia growth of Bipolaris sorokiniana by using food poison technique. In present study the data was recorded, the maximum mycelial growth inhibition was recorded in inoculation after 7 days Propiconazole (0.1%) 87.77 %, and Propiconazole (0.05%) 81.57% and radial mycelial growth 11.00 mm and 16.57 mm followed by Hexaconazole (0.2%) and Hexaconazole (0.1 %) 77.98% and 70.37% mycelial growth inhibition and radial mycelial growth 19.81 mm and 26.65 mm. The lowest mycelial growth inhibition was recorded T1 Achook 0.5% and T2 Achook 0.2% 7.75% and 0.78% and radial mycelia growth 83.01 mm and 89.56 mm. The results revealed that inhibition percentages were increase with the increased in concentration of all fungicides used in this study.