Candied jujube

Distribution: A small amount is cultivated in Dongkongguo, Beiwang, Yong'an Village in Linfen City and Taigu County.

Botanical characteristics: The crown is irregular-headed in shape, the tree posture is relatively spreading, the trunk is weak, the tree vigor is weak, and the tree body is small. The main trunk is grayish brown, the bark splits longitudinally, the cracks are medium deep, and little peels off. The jujube head branches are brownish red, with annual growth of about 51 cm, slightly curved internodes, and medium-large, dense, yellowish-brown lenticels. The jujube spurs are grayish brown and conical. Usually 1-5 bearing shoots are produced, 19-30 cm long, with more fruit set at nodes 6-9. The flower quantity is dense, and each inflorescence has 1-9 single flowers. The bearing shoots have 9-17 leaves; the leaves are large and medium thick, long ovate, 5.6-9.1 cm long, 1.8-3.8 cm wide, gradually pointed at the tip, with blunt serrations at the margin, a somewhat rounded base, dark green, and a petiole 0.5-1.2 cm long.

Biological characteristics: A 20-year-old plant has a trunk height of 1.3 m, trunk circumference of 0.54 m, tree height of about 4 m, and branch spread of 4-4.8 m. The sprouting ability of jujube heads is medium, and the fruit set rate in the current year is high. It bears fruit early and is high-yielding and stable-yielding. A 20-year-old single plant produces 30-40 kg of fresh jujubes. In the production area, it sprouts in mid-April, blooms in mid-to-late May, reaches full bloom in early-to-mid June, the fruit ripens in mid-September, and leaves fall in early-to-mid October.

Economic traits: The fruit is small, ovate, 2.4-3.1 cm in longitudinal diameter, 2-2.6 cm in transverse diameter, with an average single fruit weight of 2.3 g and a maximum single fruit weight of 10.6 g. The fruit surface is smooth, the skin is thin and red, the fruit dots are medium-large and conspicuous, the stem cavity is shallow and medium wide, and the fruit apex is slightly sunken. The flesh is white-green, dense and crisp, juicy, and extremely sweet, containing 30.5% soluble solids. The stone is small, spindle-shaped, 1.5-1.9 cm in longitudinal diameter, 0.47-0.72 cm in transverse diameter, with an average weight of 0.25 g, and the edible portion accounts for 96.6% of fruit weight. The stone surface is relatively rough, the grooves are medium deep, the tip is long and pointed, the base is short and blunt, the kernel-bearing rate is 50%, and the kernels are relatively plump. The fruit quality is extremely high. Disadvantages: the fruit is small, preharvest fruit drop is serious, storage and transportation ability is relatively poor, and the fruit easily cracks when it rains during the ripening period.

Cultivation points: This variety has weak tree vigor, a small tree body, weak cold resistance and disease resistance, and relatively strong drought resistance. It is suitable for development in flat plains, dry land, sloping land, and near cities and suburbs.