Potato Ji Chengshu No. 1

Main characters: erect plant type, medium number of branches, plant height 50~60cm, stem green, strong growth potential: green leaves, medium hairs, large compound leaves. The leaf margin is spreading, the lateral leaflets are 4 pairs, the arrangement is medium, the inflorescence peduncle is green, the peduncle node is colored, the Corolla is light purple, the petal tip is colorless, the Corolla is large, no double petal, purplish red, the tip is pointed, light purple, medium hairy, etc.; the tuber has a long dormant period and is resistant to storage. Late maturity, growth days of about 120 days; excellent steaming quality; processing quality: dry matter 20.2%, starch 12.2% 16.4%, reducing sugar 0.64%, crude protein 1.3%, vitamin C19.6 mg/100g; plants are more resistant to late blight, tuber disease, black shank disease and ring rot, leaf roll virus disease, mosaic virus disease; generally 667 square meters yield is about 2000kg, high yield can reach more than 3000kg.

Suitable planting area: suitable for planting in one-season planting area in North China, mainly distributed in Weichang County, Hebei Province, below 1200 meters above sea level.

Key points of cultivation techniques: the suitable density of this variety is about 3500 plants per 667m2, which can be obtained by picking flowers and buds.