Efficacy of fungicides against grain discoloration of rice under field conditions Madhusudhan P.*, Paramasiva I., Ch. Sreelakshmi, Harathi P.N., Vineetha U. Department of Plant Pathology, Agricultural Research Station, Acharya N. G. Ranga Agricultural University, Nellore-524003 *E-mail: p.madhusudhan@angrau.ac.in
Online Published on 28 August, 2023. Abstract Grain discoloration of rice is a complex disease occurred due to infection by certain microorganisms, especially fungi on glumes, kernels or both. Different fungicides viz. propiconazole25 eC@ 1ml/l, tebuconazole 25.9% eC@ 1.5 ml/l, isoprothiolane 40eC@1.5ml/l, Kasugamycin3L @2.5 ml/l, isoprothiolane 40 eC @1.5 ml + propiconazole25 eC @ 1ml/l, Kasugamycin 3L@2.5ml + propiconazole25 eC@1ml/l, isoprothiolane 40 eC@ 1.5ml+tebuconazole 25.9% EC@1.5ml/l, Kasugamycin 3L @2.5 ml+ tebuconazole 25.9% EC@1.5ml/l, trifloxystrobin 25%+ tebuconazole 50% WG @0.8 g/l, kresoxin methyl 44.3% eC@ 1ml/l were evaluated against grain discoloration at Agricultural Research Station, Nellore for three consecutive years from 2015-2017 under field conditions. Pooled analysis of three years data revealed that all the fungicides were significantly effective against the grain discoloration with highest grain yield as compared to untreated control. Among them propiconazole 25 eC@1ml/l recorded highly beneficial with B:C of 1.50:1 with 9.5 per cent incidence of the disease and grain yield 5569 kg/ha and is being recommended to farming community to manage the disease. Top Keywords Fungicides, Rice, Grain discoloration, Dirty panicle. Top |