Influence of Soil and Weather Factors on Progression of Paddy Stem Rot Disease under Natural Condition

Author: Gowdar S.B.*, Patil M.B., Gururaj Sunkad, Pramesh D., Masthana Reddy B.G. and Sujay Hurali

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Abstract

ABSTRACT: Rice is a major cereal crop in Karnataka’s Tungabhadra Project, Upper Krishna Project and Cauvery command regions. Stem rot has been intermittent in the TBP and UKP command areas of North eastern Karnataka in recent years, but it can become a significant concern. The present investigation was carried out on influence of weather and soil factors on progression of paddy stem rot disease under natural condition in a fixed plot size (10 m × 10 m) at Agricultural Research Station, Gangavathi, UAS Raichur, over the cropping season (Kharif 2017-18, Rabi/summer 2017-18, and Kharif 2018-19). The observations on per cent stem rot incidence were recorded at weekly interval (SMW - Standard Meteorological Weeks) till harvest on paddy cv. BPT-5204. The progression of paddy stem rot disease throughout the entire crop season (Kharif 2017-18, Rabi/summer 2017-18 and Kharif 2018-19) in the susceptible variety BPT-5204 revealed that the disease started (1.60) during the fifth week (40th SMW)

Keywords

Keywords: Paddy, progression, standard meteorological weeks and stem rot.