PERFORMANCE ASSESSMENT OF SUBMERGENCE TOLERANCE RICE VARIETY IN FLOOD PRONE AREAS OF DIBRUGARH, ASSAM, INDIAD. Sharmah, S. Sarma, S. Bora Saikia, T. Malakar, S. Baruah and S. PaulAbstract A three years field demonstration was conducted under Krishi Vigyan Kendra, Dibrugarh during 2020, 2021 and 2022 in flood prone situation to increase the present low yield of traditional rice variety through adoption of submergence tolerant high yielding rice variety with improved package of practices. The results revealed that rice var. Ranjit Sub 1 yielded maximum average 50.24 qt ha-1 after submergence period of 7 days followed by Jalashree (38.50 qt ha-1), Jalkuwari (38.70 qt ha-1) where as 29.62 qt ha-1 received from traditional rice variety after same submergence period. The variation was also obtained in net income received from Ranjit sub -1 Rs. 21,398/- ha-1 was more as compared to Jalkuwari (Rs.11,060/- ha-1), Jalashree (Rs. 10,850/- ha-1)and traditional rice variety that provides Rs.1,620 ha-1 only. Rice variety Ranjit Sub -1 showed 5.46 qt ha-1, 20.92 qt ha-1 and 9.76% Technology gap, Extension gap and Technology index respectively where as rice variety Jalashree and Jalkuwari showed 6.50 qt ha-1 and 6.30 qt ha-1 and 8.88 qt ha-1 and 9.08qtha-1 and 14.44 % and 14.00% Technology gap, Extension gap and Technology index respectively. From the experiment all the submergence tolerant high yielding rice variety performed better as compared to traditional rice variety and can be the alternative for the rice growers in flood prone areas of the district to decrease their production loss due to flood situation. |