Qianniushan pomelo (varQianniushanhort). In the middle of the Qing Dynasty, Luo Yanshang, who was an official in the south of the Yangtze River, brought back a pomelo seedling when he returned home and planted it at the foot of Qianniushan Hort at the junction of today's Quhe Township and Wanlin Township. , after the fruit is produced, the flesh becomes crispy and tender, and the taste is sweet, sour and refreshing. Later generations rushed to breed it, forming a certain scale, and named it Morning Bull pomelo. In the early years of the Republic of China, Luo's family shipped the pomelo to Chengdu for trial marketing because the market was booming and the price was high. Because of its delicious taste, people praised it. For a time, the price of pomelo was several times higher than that of other pomelo in Chengdu, reaching a price of 1 silver dollar each, and it was quickly sold out. From then on, Qianniu Mountain pomelo became famous in Sichuan. Since the reform and opening up, the development of Qianniu Mountain pomelo has attracted the attention of the party and government at all levels. All localities have vigorously developed and competed for cultivation. There are currently about 1.5 million pomelo trees in the county, and county-level famous pomelo trees have been built focusing on Quhe Township and Wanlin Township. The production base has cultivated 1.25 million plants, including 650,000 plants in Quhe Township and 600,000 plants in Wanlin Township. The pomelo was rated as the city's high-quality fruit in 1985, 1995 and 1999, and the provincial quality fruit in 1992. In 1994, the "Qianniu Mountain" trademark was officially registered. The county's annual output of Qianniushan pomelo is 14-17 million, with an output value of about 30 million yuan. It is the project with the highest output value in the county's fruit industry, and is also one of the key projects for farmers in our county to increase their income and become rich. _

This pomelo is a perennial evergreen tree with strong vigor and a naturally rounded crown that is relatively open. The branches are thick and upright, mostly oblique in mature and old trees, and the branch thorns are reduced or absent. The leaves are oval, with a gently pointed apex, smooth leaf surface, convex veins, large and thick leaves, blunt serrated leaf margins, small petiole wings, inverted triangle shape, and darker green leaf color. The flowers are arranged in cymes or solitary; the calyx is 4-5 lobed and hairy; the petals are nearly spoon-shaped, recurved when blooming, the stamens are shorter than the petals, and the ovary is spherical. The fruit is pear-shaped or obovate, the base of the fruit pedicle is slightly sunken, with obvious thick radial grooves, and one side of the fruit pedicle is slightly higher. The peel is thick, usually about 1.8cm. After maturity, the exocarp is golden yellow, the oil cells are thick, slightly uneven, and the spongy layer is white. The wall of the cyst valve is thin, white, with 11-13 valves, mostly 12 valves, and is comb-shaped and easy to separate. The juice cells are spindle-shaped, larger, oil-soaked beige, crystal clear. The pulp is crispy, tender and stale, sweet and sour. Generally, a single fruit weighs about 1,000 grams, and the heaviest can reach more than 2,000 grams. It is resistant to storage and transportation. _

According to the 1992 measurement by the Chengdu Institute of Geology of the Ministry of Geology and Mineral Resources, the various physical and chemical indicators of Qianniushan pomelo are as follows: hygroscopic water 24.60, coarse ash 4.10, dry matter 79.54, aluminum 0.004, silicon 0.035, magnesium 0.031, Sulfur 0.07, potassium 1.154, phosphorus 0.147, calcium 0.052, soluble solids 12, monosaccharides 8.48g/100ml, total acid 1.02g/ml, Vc85.18mg/100ml, trace elements manganese 2ppm, copper 1ppm, iron 30ppm, zinc 3ppm. The pomelo has the functions of appetizing and strengthening the spleen, opening the chest and smoothing the flow of energy, sobering up alcohol and refreshing the mind, and nourishing the skin. It is an ideal green health-care fruit for human beings and is also a good gift for guests.