True Potato Seed (TPS): An Alternative Technology for Commercial Cultivation of Potato in Bihar

For standardization of TPS (True Potato Seed) transplanting time, seedling tuber size and fertilizer application the experiments were conducted on experimental research plot of TCA, Dholi along with farmer's field with selected True Potato Seed populations. Total tuber yield (q/ha) varied from 90.50 to 128.00 q/ha. Early transplanting by second week of November was found most suitable for superior TPS transplanting. Application of N-100kg, K2O-100kg and Mustard Cake 10 q per ha in seedling transplanted crop was found most profitable. The seedling survival at harvest in farmer's field varied from 50.00 per cent to 63.00 per cent. The seedling tuber size of 10-20 gram gave equal tuber yield as compared to normal seed potato size (30-40 g). As the tuber yield from TPS seedling transplanted crop is poor in alkaline-saline soils of North Bihar, farmers are very much interested to transplant TPS seedling in small area to get good quality seedling tubers potato for large scale commercial production in future.