Screening of rice varieties for resistance against sheath blight disease caused by Rhizoctonia solani in Konkan region of Maharashtra, India

Abstract

The field experiment was conducted during Kharif, 2024 and Rabi, 2024-25 at Agricultural Research Station, Shirgaon, Dist. Ratnagiri to assess the reactions of thirty-one rice varieties against sheath blight disease under natural epiphytotic conditions. The results revealed that, amongst thirty-one rice varieties screened against sheath blight disease, twenty-one rice varieties were found moderately resistant, ten rice varieties viz., Ratnagiri 5 (52.59% and 47.28%), Ratnagiri 7 (54.07% and 49.34%), Karjat 3 (49.34% and 47.68%), Karjat 4 (50.65% and 46.32%), Karjat 5 (55.27% and 49.94%), Karjat 6 (51.89% and 47.63%), Karjat Shatabdi (58.39% and 52.06%), Panvel 1 (53.17% and 49.44%), Panvel 2 (50.18% and 47.39%), Panvel 3 (52.64% and 49.28%) were found susceptible to sheath blight disease during Kharif, 2024 and Rabi, 2024-25, respectively. However, none of the rice variety exhibited immune, highly resistant, resistant and highly susceptible reaction against sheath blight disease during Kharif, 2024 and Rabi, 2024-25.