The present study was carried out at five different villages of Tinsukia district of Assam where frontline demonstration of HYV of toria (TS 36) was conducted by KVK, Tinsukia. A total of 55 nos. of FLDs were evaluated to find out the yield gaps between HYV toria variety TS 36 and variety grown by farmers. Yield data of both demonstration and farmers practice were recorded and their yield gap, technology gap, extension gap and technology index were analyzed. Toria yield of variety TS 36 registered 29.9 to 39.33 percent higher over farmer’s variety. On an average technology gap was recorded 1.91 q/ha, while average extension gap was recorded 3.46 q/ha. Average technology index was recorded 15.93 percent.

Keyword: Yield gap; Technology gap; Extension gap; Technology index; Frontline demonstration;