Journal of Pure and Applied MicrobiologyVol. 9 No. 4

Impact of Bio-Fertilizers for the Management of Spot Blotch Disease and Growth and Yield Contributing Parameters of Wheat

S. K. Biswas1, Uma Shankar1, Santosh Kumar2, Amarendra Kumar2*, Virendra Kumar1 and Kishan Lal1

1Department of Plant Pathology, C.S. Azad University of Agriculture & Technology, Kanpur-208002, Uttar Pradesh, India. 2Department of Plant Pathology, Bihar Agricultural University, Sabour-813210 (Bhagalpur), Bihar, India.

Received on 05 June 2015 and accepted on 10 August 2015



Seven bio-fertilizers viz., Azotobacter chroococum, PGPR, Trichoderma harzianum, Trichoderma viride, PSB, Rhizobium, carbendazim, were evaluated in management of spot blotch of wheat and its role on growth parameters and yield. The maximum germination was recorded in case of seed treatment with Azotobacter (95 %). Highest shoot length (25.4, 47.9 and 74.4 cm) and root length (8.4, 10.1 and 11.80 cm) and maximum number of tillers (5.8, 6.3 and 7.30/plant) was achieved when wheat seeds were treated with A. chroococcum and soil application with A. chroococcum at 35, 55, 75 days. The highest fresh shoot and root weight was noted in Azotobacter treated plant as seed treatment and soil application with A. chroococum, representing 17.92 gm/shoot and 1.9 gm/root at 90 days age of plant. Seed treatment and soil application with bio-fertilizer of Azotobacter showed the minimum severity of disease with 42.60%. Higher grain (47.62 gm/pot) and straw yield (74.80 gm/pot) was obtained from Azotobacter treated plant.

Keywords : Wheat, bio-fertilizers, spot blotch, management, growth parameters.