Guanxian Yali has a long history and a wide area. It is known as the “Pears of the World”. Guanxian Yali is the “county fruit” of Guan County. It has a cultivation history of more than 1,000 years. It is named after the shape of the handle. It has the characteristics of large, thin skin, small core, tender and crisp meat, rich and sweet juice, rich and smooth fruit surface, correct fruit shape, less stone cells and storage resistance.

Guan County is located in the mid-latitude, with an average annual temperature of 13.3 ° C. The light is sufficient and the four seasons are distinct. As the hometown of Chinese pears and the hometown of Chinese white poplars, afforestation has improved the microclimate and conserved water sources. From late August to mid-September, it is a critical period for the ripening of Yali. At this time, the rainfall is moderate and the sunshine is sufficient. The temperature difference between day and night in September is 10 °C. Sufficient light, large temperature difference is the natural factor that forms the high sugar content of Guanxian Yali; fine pruning, intensive cultivation, and application of organic fertilizer are human factors with high sugar content. In such a suitable growth environment, the pear fruit is fresh, thin, juicy, and sweet. Brand building In the 1970s, Guanxian Yali was sold at home and abroad, and sold domestically to Shanghai, Tianjin, Liaoning, Heilongjiang, Hubei, Hunan, Guangdong, Guangxi and other provinces and cities, and exported to Southeast Asian countries. In 1986, the Guan County People's Government formulated a master plan to expand the area of ​​Yali and establish a Yali base county. In 1987, the first meeting of the 10th People's Congress of Guan County decided to make Guanxian Yali a “county fruit”. In 1988, Guanxian Yali was awarded as a high-quality fruit in Shandong Province. In 1990, it was awarded as a high-quality fruit at the National Agricultural and Sideline Products Expo and won the Silver Award. In 1993, the county government of Guanxian County included the construction of the Yali base as the first “green project” in the “Eighth Five-Year Plan” of the county's national economic development, and established a leading group. The Administrative Office of Liaocheng District of Shandong Province is also extremely concerned about the construction of the Yaxian Pear Base. Reported to the provincial government on the "Report on the Construction of the Luxi Yali Base", the provincial government specially allocated funds to support the establishment of the Yali Non-toxic Seedling Breeding Center in the Tangsi Nursery of Guan County. With the support of provincial and municipal leaders, Guanxian Yali has developed rapidly. In order to meet the high quality and pollution-free requirements of Yali pear in the domestic and foreign markets, Guan County established Red Apple Forestry Co., Ltd. and Shandong Pastoral Fruit Technology Co., Ltd., and adopted the management form of the company plus base and base even farmers, and established a marriage with foreign-funded enterprises. It is an export base for large-scale, high-standard, pre-production, mid-production, and post-production services. It provides unified training for pear farmers, unified management, popularization of pollution-free cultivation techniques, and unified acquisition of products, and extensive management into intensive management and industrialization. The road to standardization has laid the foundation for stabilizing and broadening the domestic and international markets. Guan County also focused on extending the fruit industry chain, built more than 30 constant temperature warehouses and gas storage warehouses, and established a number of fruit processing enterprises led by Nai Lun Juice Company, which promoted the processing value of Yali. In 2003, Guan County was named as “Hometown of Chinese Yali” by the State Forestry Administration and the China Economic Forestry Association. In 2004, “Yellow River Wave” pear passed the certification of pollution-free agricultural products of the Ministry of Agriculture. In May 2006, the General Administration of Quality Supervision, Inspection and Quarantine officially approved the protection of geographical indication products for Guanxian Yali. Knowledge Link Health Care Products Guanxian Yali has excellent physical and chemical quality characteristics. According to the analysis, the edible rate of Guanxian Yali is as high as 90%, the sugar content is 8.06%, the soluble solids is 13.5%, the total acid is 0.08%, the fruit hardness is 7.1kg.f/cm2, and the solid acid ratio is 68.8. Vitamins and trace elements such as calcium, magnesium, phosphorus, iron and zinc. The arsenic, lead, cadmium, mercury and pesticide residues of Guanxian Yali are in line with the requirements of pollution-free food. Chinese medicine believes that pears have the effect of thirst, cough and phlegm, clearing heat and reducing fire, nourishing blood and nourishing muscles, moistening the lungs to dryness, hangover and other effects. The living creatures clear the six scorpions, and the acquaintances nourish the five internal organs. Modern medicine believes that pears also have the effect of lowering blood pressure and clearing heat. People with high blood pressure and heart disease can reduce their condition by eating pears. Pear is rich in sugar and a variety of vitamins, can protect the liver, help digestion, can be used as an auxiliary treatment food for patients with liver disease. The leaves, flowers, roots, etc. of pear and pear trees can also be used for medicinal purposes. According to the "Compendium of Materia Medica", the pear is rich in nutrients and is often eaten. It can clear the stomach and succumb to the spleen and moisten the liver. It is known as the natural "white tiger soup". The heated pear juice can prevent cancer researchers from conducting experiments. The heated pear juice contains a large amount of anticancer substance polyphenols, and the heated white pears are given to the mice injected with carcinogens, and the mice can discharge a large amount of urine in the urine. - Hydrocarbyl scorpion toxin, thereby preventing cancer. Therefore, smokers, those who like to eat smoked foods or baked goods are advised to drink more heated pear juice, which is both nutritious and healthy, and reduces the risk of cancer.

Guanxian Yali quality technical requirements (a) varieties. Pear. (2) Site conditions. The old road of the Yellow River is alluvial sand loam with organic matter content ≥0.7%, pH 7.4 to 7.8, and sufficient water source. (3) Cultivation management. 1. Seedling cultivation: Take Du pear as the rootstock, use the branch buds on the excellent pear tree as the propagation material, and cultivate the high-quality seedlings by grafting. 2. Planting density: ≤55 plants per 667m? (mu). 3. Fertilization: Apply more than 2000kg of organic fertilizer per 667m? (mu) and mix with appropriate fertilizer. 4. Flower and fruit management: pollination during flowering, reasonable load, retain 1 to 3 flowers, and maintain the pear fruit shape. The yield during the fruiting period is controlled below 2500kg/667m? (mu). (4) Harvest period. It is used for long-term storage and harvested about 150 days after the flowering. For short-term storage and direct sales, it can be harvested about 160 days after the flowering. (5) Quality characteristics. 1. Sensory features: small fruit, thin skin and crispy juice, less stone cells, crispy and delicious, with aroma, refreshing after eating, bagging fruit less top rust. 2. Physical and chemical indicators: single fruit weight 180g to 280g, soluble solids ≥12.0%, edible rate more than 90%, fruit hardness 7.0kg?f/cm?.

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Producers within the scope of protection of Guanxian Yali Geographical Indication Products may submit an application for the use of “Special Marks for Geographical Indication Products” to the Quality and Technical Supervision Bureau of Guanxian County of Shandong Province, which shall be approved by the General Administration of Quality Supervision, Inspection and Quarantine.