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Potato is one of the basic vegetable of mass consumption in world and become 4th important staple food crop after rice, wheat and maize. Potato is one of the important crops for tribal farmers of Surguja district but farmers use uncertiied seed of potato for cultivation resulting in lower yields. An on farm trial was conducted during rabi season of 2015-16 and 2016-17 at ive farmers' ield. The trial was laid out with three treatments i.e., T1-Farmers' practice (uncertiied potato seed) and T2-Recommonded practice (certiied seed of potato-Kufri khayati) and T3-Recommonded practice (certiied seed of potato-Kufri pukhraj). Yield attributes, yield, gross return and B:C ratio were recorded and found that signiicantly higher yields were obtained under T3 during both the years as compared to farmers' practice.

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Weather parameters play major role in determining the crop growth, development and yield because weather strongly influences the physical expression of genetic potential of the crop. The yield from any given crop or variety depends on the extent to which certain optimum weather conditions like solar radiation, temperature, humidity, rainfall, evaporation and wind speed varies from its optimum conditions. Any significant deviation of these parameters from the optimum value became detrimental for the crop productivity. India occupies third position in area and production of rapeseed-mustard in world. It is the major rabi oilseed crop in Chhattisgarh under irrigated condition in rice based cropping system. It occupies largest area of 140.5 thousands ha production of 62.0 thousand tones and productivity of 441 kg ha -1 , respectively (Hegde, 2005).

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