Bihar

Bihar is an important potato growing state in eastern India, supported by fertile alluvial soils, relatively mild winter temperatures and extensive irrigation in the agricultural plains. Potato is mainly cultivated as a rabi crop, with planting generally taking place from October to November and harvesting from January to February. The crop fits well into Bihar’s rice–wheat-based farming systems and provides farmers with an important high-value vegetable crop during the winter season. Bihar’s deep alluvial soils are generally productive, although drainage problems, occasional flooding and nutrient deficiencies can affect crop performance.

Potato cultivation is concentrated particularly in the productive agricultural belts of Nalanda, Patna, Vaishali, Samastipur, Muzaffarpur, Saran, Begusarai and surrounding districts. Farmers grow potatoes mainly for the fresh/table market, supplying urban and regional markets across eastern India. The state’s proximity to large consumption centres and its extensive road and market network support movement of harvested potatoes beyond the production areas. Improved varieties developed by ICAR-CPRI have also expanded the range of cultivars suitable for Bihar and other North Indian plains. For example, Kufri Neelkanth is officially listed as suitable for Bihar and similar agro-ecological conditions.

Bihar’s potato sector is increasingly connected with improved seed, varietal diversification, crop protection and post-harvest management. Varieties such as Kufri Pukhraj, Kufri Jyoti, Kufri Bahar and Kufri Chipsona are part of the wider improved potato varietal base used across the Indian plains, while newer cultivars are being developed for table use, processing quality, heat tolerance, disease resistance and storage performance. ICAR-CPRI reports that its varieties occupy more than 90% of India’s potato growing area, reflecting the importance of improved breeding in the development of potato production in states such as Bihar.

The history of organised potato research in Bihar is closely associated with the establishment of the Central Potato Research Institute (CPRI). Potato research in India formally began in 1935 with breeding and seed production stations at Shimla, Kufri and Bhowali. Following the development of a dedicated national research programme, ICAR-CPRI was established in August 1949 at Patna, Bihar, before its headquarters were moved to Shimla in 1956. The Patna location was an important early centre for India's developing potato research programme and reflected the importance of the eastern and North Indian plains for the crop.

After independence, systematic breeding, improved seed production and agronomic research helped transform potato from a relatively traditional crop into an important commercial vegetable in the Indo-Gangetic plains. The development and dissemination of improved varieties enabled potato production to expand under subtropical conditions, including Bihar. Over subsequent decades, Bihar developed a significant fresh market potato sector based on its fertile alluvial plains, winter climate and irrigation resources. The continuing introduction of varieties with improved yield, disease resistance, processing quality and adaptation to different environments has helped maintain the importance of potato in the state's horticultural economy.