Variety identification number: é—½ Recognition fruit 2009002 Crop Type: Pear Variety Name: Yu Guan Breeding Unit: Institute of Horticulture, Zhejiang Academy of Agricultural Sciences The introduction unit: Fujian Province Planting Technology Extension Station, Jianning County Economic Crop Technology Promotion Station Variety source: Zhushui / Huanghua, imported from Zhejiang in 2001 Characteristics: The tree vigor has strong growth, high germination rate, strong branching ability, prosperous growth, and flower bud formation. Planting in Jianning County, the germination period from late February to early March; early flowering at mid-March; full flowering at the middle and late March, final flowering at the end of March to the end of March; fruit maturity at the middle and late July, deciduous Termination period in early December. Long, medium, and short fruiting branches can bear fruit, and mature trees are dominated by short fruiting branches. The fruit setting rate is high and the yield is good. The fruit is nearly round, with a single fruit weight of 247-307 g; the skin is yellowish-brown and white in flesh; the flesh is crisp and tender; the juice is sweet, and its quality is superior. Sanming City, Fujian Province, agricultural product quality and safety inspection and testing center test: single fruit weight 307 grams, longitudinal diameter 7.88 cm, diameter 8.19 cm, fruit heart diameter 2.91 cm; soluble solids 10.5%, vitamin C2.86 mg / 100 g; total Acid 0.15%. The Jianning County Plant Protection Station from 2005 to 2007 spotted five green pears, such as Luyuan Fruit Industry Co., Ltd., Fruit Tree Demonstration Farm, and Zunchang Pai in Xikou Town and Lixin Town of Jianning County. The main pests and diseases of Yuguan pear were affected. Below the new century, Huanghua and other pests and diseases are similar to the new century and Huanghua. Yield performance: After three years of trials at Sanming and Nanping, the planting of grafted seedlings after 7 years of planting can reach 1292 kg or more. Cultivation Techniques: Select a deep soil layer, fertility in the upper plot to build a garden; plant spacing 4 meters 4-5 meters; pollination varieties to 'Cui crown', 'Xiangxiang' is appropriate, according to 4:1 quincunx configuration; strengthen Water and fertilizer management; pay attention to strengthen the control of growth potential, thinning and fruit thinning, and pest and disease control. The Provincial Crop Variety Approval Committee confirmed the opinion that the jade crown is a species of early-ripening sand pear, which is in the mature period of Jianning in mid-late July; the yield is high; the quality is excellent; field investigations, the occurrence of major pests and diseases are all lower than the new century, yellow flowers. It is suitable for planting in western Yunnan and northern and central high altitude areas. It is appropriate to produce pollination varieties with 'Cuiguan' and 'Xiangxiang' and pay attention to pest control. After verification, it complied with the requirements for the verification and verification of crop varieties in Fujian Province and passed the certification. Oil,High Quality Oil,Oil Details, CN Tropical Food Manufacturing (Ningbo) Co., LTd , https://www.tropical-food.com