A new yellow-fleshed kiwifruit cultivar Jinshi 4

Abstract: Jinshi 4 is a new yellow-fleshed kiwifruit cultivar selected from crossbreeding. The seedling was derived from a cross between Jinshi 1 and SF0813m in 2009 at Shifang Kiwifruit Base of Sichuan Province. The vine vigor is strong. The new canes have short hairs of medium length. The annual canes are thick and the epidermis is medium coarse and dry. The canes have white short spindle lenticels. The volume of bud socket and bud pore of annual cane is large. There is strong anthocyanin coloring set on the front of the petiole of the young leaf. The tip of the young leaf was tail-shaped and open at the base.The shape of the adult leaf is heart-shaped, the leaf edge is sawtooth-wavy, there is no or very thin fuzz on the front and weak corrugation, the front of the adult leaf is dark green, and the back is light green.The adult leaf is large. Fruit shape is ovate without sepals, the lenticels are moderately prominent, the peel is gray-brown with a moderate amount of short hairs evenly distributed on the surface of the peel,the color is gray-brown, and it is easy to fall off. The average fruit weight is 98.76 g with maximum fruit weight being 150 g. Soluble solids content is 16.1%, dry matter, total sugar and total acid contents are 19.21%, 10.79% and 1.10%, respectively, and vitamin C content is 171.33 mg·100 g-1. Fruit quality is excellent. The fruit development period is 150 d, it matures in late September in Deyang area of Sichuan province and it's a mid-season-mature variety. The inflorescence type belongs to the dichotomous cyme, each inflorescence has 3 flowers, and the bud break and cane growing ability is strong. It is medium-to-high resistant to PSA, and the occurrence of brown spot and scale insects is slight. The resistance and adaptability are strong. The fruit has very long storage-life, and cold storage life is 120-150 days.Suitable cultivation area is relatively extensive with annual average temperature >15 ℃, altitude below1000 meters, slightly acidic soil and well-drained land. It can flower and bear fruit in the third year after establishment with good yield.