Lingling jujube

There is a small amount of cultivation in Taigu, Qingxu, Jiaocheng, Wenshui and other counties.

The botanical characteristics of the tree crown is cylindrical, the tree posture is more upright, slightly more dry, the tree potential is strong, the tree body is tall. The trunk is grayish brown, the skin is longitudinally cracked, the crack is deep, and it is not easy to peel off. The head branch of jujube is brown-red, with an annual growth of 47ml / 85cm, slightly curved internodes, large sparse lenticels and protruding yellowish brown. Date strands grayish brown, conical or long conical. Usually draw raw jujube to hang 1 Mel 5, hang length ll-21.5cm, bear fruit more parts 4 Murray 7 knots. The number of flowers is dense, and each inflorescence has 10 flowers per inflorescence. Jujube hanging has 8-14 leaves, the leaf blade is small and thin, fusiform, 3.2-6.8 cm long, 1.1 mi 2.4 cm wide, apex acuminate, margin serrate shallow, base cuneate, light green, petiole 0.2-0.5 cm long.

Biological characteristics 30-year-old plant stem height 1.45 m, stem circumference 0.85 m, tree height 10.5 m, branch spread 6.2 m 7.4 m. The germination ability of jujube head is strong, and the fruit setting rate is poor in that year. Enter the full fruit period early, high yield, stable yield. The yield of fresh jujube per plant of 30 years old is 40ml 50kg. In the producing area of Jiaocheng, it germinated in mid-April, blossomed in late May, reached full flowering in mid-June, ripened in the first and middle of September, and deciduous in late October.

Economic characters the fruit is small, round, with a vertical diameter of 2.4cm and a transverse diameter of 2.3mi 2.8cm. The average weight of a single fruit is 8.4g and the maximum weight of a single fruit is ll.8 g. The fruit is smooth, thin and crimson. Fruit spot small, conspicuous, pedicel depression shallow and wide, fruit apex retuse. The meat is medium-thick, yellow-white, crisp, sweet, juicy and contains 29.8% soluble solids. The nucleus is small, conical, 1.3--l.8 cm in longitudinal diameter, 0.6m in diameter 0.95cm in horizontal diameter, with an average weight of 0.4g, and the edible part accounts for 95.2% of the fruit weight. The nuclear surface is rough, the groove is shallow, the apex is short and slightly obtuse, and the base is short and obtuse. The kernel content is more than 95%, and the seed kernel is full. The fruit is of high quality. Disadvantages: poor storage capacity, easy to crack fruit in case of rain during maturity.

The main cultivation points of this variety are strong tree potential, tall tree body, strong drought resistance and weak resistance to diseases and insect pests. It is suitable for cultivation in Pingchuan, dry land, sloping land and suburban areas.