Abstract：Abstract：‘Shishu No.4’is a new colorful table potato variety developed by crossing‘Heimeiren’as female parent and‘D-2-5-3’as male parent through sexual hybridization and systematic selection．It is of early maturity．Its growth period is about 72 days．The plant is about 67 cm in height．It is upright type．The branches are in medium quantity．The tuber is of oval shape with purple-black peel and dark purple pulp．The surface of tuber is smooth．Its bud eye is shallow．The average number of potatoes is 4.5 per plant．The tubers are neat．Its stolon is of medium size．The contents of VC and anthocyanin are 135.62 mg · kg-1，1 559.4 mg · kg-1，respectively．The rate of commercial potatoes is more than 90%．Its yield is about 28.5 t · hm-2．Its resistance to early blight and late blight are stronger in fields than that of the contrast‘Heijin′gang’．It is middle resistant to potato black scurf．It is suitable for planting in the second cropping area of Hebei Province．
