Sustainable management of sheath blight in rice (Rhizoctonia solani Kuhn) Kumar N. Kiran1,*, Kumar M.K. Prasanna2, Kumar L. Vijay1, Patel Pooja S.1 1College of Agriculture, (UASB), V.C. Farm, Mandya – 571 405, Karnataka, India 2College of Agriculture, GKVK, UAS, Bengaluru – 560 065, Karnataka, India *e-mail: kiranpathos@gmail.com
Online Published on 11 January, 2024. Abstract A study was done to explore the various strategies to manage the sheath blight of rice. During kharif 2018 and 2019, different treatments viz., foliar and soil application of Trichoderma viride, Pseudomonas fluorescens, mustard, and radish leaf and their combination were applied at 30 and 60 days after transplanting (DAT). The parameters such as disease severity, grain chaffiness, plant height, and yield were evaluated at 45 and 75 DAT and at harvest. Foliar application of propiconazole 25 per cent EC @ 0.1 per cent was most effective (50-75.01%) followed by soil application of mustard leaf @ 5 kg plot−1 before transplanting and foliar application of P. fluorescens @ 5 g l−1, whereas foliar application of T. viride @ 5 g l−1 (9.64% and 46.64%) was least effective. The foliar application of propiconazole 25 per cent EC @ 0.1 per cent recorded the lowest percent of chaffiness (11-15%), the highest yield of 4941.7-4991.7 kg ha−1, whereas the foliar application of T. viride @ 5 g l−1 showed highest percent of chaffiness (28.67-36.67 per cent) with a yield of 3516.7-3475 kg/ha−1. Top Keywords Kharif, Chaffiness, Rice, Sheath blight, Bioagents, Biofumigants. Top |