Introduction and Characterized of New Potato Variety,Zhongshu 7

To add new potato varieties, and meet the regional ecological diversification requirement and demand of the farmers, in 2007, the Crop Institute of FAAS and Fujian Provincial Seeds Station jointly introduced a new potato variety, Zhongshu 7, developed by the Institute of Vegetables and Flowers of CAAS.After successful multi-plot trials, provincial regional and field tests, it was released by the Fujian provincial authorities in March, 2012.The growth period of Zhongshu 7was approximately 89 days.It had green leaves, purple stems, 6-8tubers per plant, oval-shaped tubers, faint yellow and smooth skin, flesh, shallow eyes, 18.38% dry matter, and appealing eating quality.Its dormancy was approximately 60 days, and the yield was 29 716-32 321kg·hm-2.To achieve high yield, recommendations on cultivation as follow field selection, turn over and ridging, seeds preparation, sowing time, planting density, fertilization, watering, intertillage, disease-and pest-control, and harvesting are included.