Potato (Solanum tuberosum L.) is an important winter vegetable crop in central terai. As compared to India (19.0 t/ha), the productivity of this area (16.59 t/ha) is quite low. The major contributing factors of low productivity are lack of high yielding and late blight resistant varieties. Tubers of 16 cultivars; 4 released check cultivars, 12 superior cultivars from Initial Evaluation Trial in the past were planted in Kartik and grown during winter season in BS 2066 and 2067 in RARS Parwanipur in rice-based cropping system. Experiment was laid out in RCBD with four replications. Tubers were planted on ridges in 60x25 cm spacing fertilized with 1000:100:60 kg NPK + 15 ton compost per hectare. Result showed that cv. Andinita (22.64 t/ha) which had significantly higher yield as compared to the rest of the cultivars and having resistant to late-blight disease was selected and recommended for cultivation in central terai. It was followed by CIP 389660.9 (21.25 t/ha) and CIP 388764.26 LB (19.09 t/ha) having fairly resistant to late-blight showed superior performance should be further evaluated in the farmers' field condition. These three cultivars had increased tuber yield by 25.9%, 18.2% and 6.2%, respectively.

Potato (Solanum tuberosum L.) is an important winter vegetable crop in central terai. As compared to India (19.0 t/ha), the productivity of this area (16.59 t/ha) is quite low. The major contributing factors of low productivity are lack of high yielding and late blight resistant varieties. Tubers of 16 cultivars; 4 released check cultivars, 12 superior cultivars from Initial Evaluation Trial in the past were planted in Kartik and grown during winter season in BS 2066 and 2067 in RARS Parwanipur in rice-based cropping system. Experiment was laid out in RCBD with four replications. Tubers were planted on ridges in 60x25 cm spacing fertilized with 1000:100:60 kg NPK + 15 ton compost per hectare. Result showed that cv. Andinita (22.64 t/ha) which had significantly higher yield as compared to the rest of the cultivars and having resistant to late-blight disease was selected and recommended for cultivation in central terai. It was followed by CIP 389660.9 (21.25 t/ha) and CIP 388764.26 LB (19.09 t/ha) having fairly resistant to late-blight showed superior performance should be further evaluated in the farmers' field condition. These three cultivars had increased tuber yield by 25.9%, 18.2% and 6.2%, respectively.