Duwei Wendan pomelo is one of the four famous fruits in Putian, Fujian Province, China. It is a rare and valuable fruit unique to Duwei Town, Xianyou County. It is a Chinese geographical indication product. The fruit has excellent quality, fragrant smell and tender meat. It has mellow juice, moderate sweetness and sourness, no seeds and few seeds, refreshing fragrance and unique flavor. Wu Dengqing, a member of the county government, and a famous Dan from the Putian Xian Opera Troupe successfully cultivated it. They named it "Wendan pomelo" after their identities. Later, they used high-pressure method to cultivate seedlings and spread them to neighboring villages. In November 1984, when President Xi Jinping inspected Fujian, he tasted it and named it "Duwei Seedless Honey Pomelo". Basic introduction Chinese name: Duwei Wendan pomelo Origin: Duwei Town, Xianyou County, Fujian Province Quality characteristics: fragrant smell, tender meat and mellow juice, seedless and few seeds Geographical indication: General Administration of Quality Supervision, Inspection and Quarantine Approval Number: National Quality Inspection General Administration Announcement No. 53 of 2010 Approval time: May 24, 2010 Origin environment, quality characteristics, variety origin, production status, honorary certification, product quality, scope of protection, use of special marks, quality and technical requirements, origin environment Duwei Town It is located in the hilly area of ??the mid-level mountainous area in the west of Xianyou County, with an area of ??113 square kilometers. The town has 36,000 acres of cultivated land and 100,000 acres of mountainous land. The territory has a subtropical marine monsoon climate, with an average annual temperature of 21°C, annual rainfall of 1600-2000mm, sufficient sunshine, abundant rainfall, and abundant water resources, forming unique natural climate conditions for the production of high-quality fruits, especially Wendan pomelo, and is a natural treasure land for the development of subtropical plants. . Geographically, it is close to the Daiyun Mountains and is surrounded by mountains and a basin. The soil in the mountainous areas within the territory is brick-red red soil and sandy yellow loam, rich in organic matter. It is the most suitable place for the development of green food and is known as the "Hometown of Fruits." Duwei Wendan pomelo base quality characteristics: Duwei Wendan pomelo is one of the four famous fruits in Putian. It is a rare and valuable fruit unique to Duwei Town, Xianyou County. It has excellent fruit quality, fragrant smell, tender meat and mellow juice, moderate sweetness and sourness, and no seeds. Few seeds, fragrant and refreshing, unique flavor. The appearance is like a large weight, with a green and yellow color, and the fruit weighs about 800 grams. It is rich in substances and has high nutritional value and medicinal effects. According to the testing center of Fujian Agriculture and Forestry University and the component analysis of Tianjin Institute of Light Industry, Wendan pomelo contains 18 kinds of beneficial amino acids and 11 kinds of minerals. Tests by the Fujian Institute of Traditional Chinese Medicine have shown that Duwei Wendan pomelo contains naringin, citrin, carotene, vitamin B, niacin, calcium, phosphorus, iron, volatile oil, sugar and insulin, and has anti-inflammatory, cough-relieving, blood pressure lowering, It has the effects of lowering blood sugar and is a delicious fruit that is suitable for both medicine and food. Appearance characteristics of Duwei Wendan pomelo Variety Origin Duwei Wendan pomelo cultivation has a long history. According to legend, in 1833 (the twelfth year of Daoguang reign of the Qing Dynasty), Wu Dengqing, a member of the *** group in Tanbian Village, Duwei Town, Xianyou County, passed the imperial examination. The following year he visited Zhejiang When Jinhuafu and his friends tasted the local pomelo, they felt that the quality was very good. They even asked local friends for pomelo seedlings and brought back a few to plant in the courtyard of their hometown. After several years of careful cultivation, the pomelo trees grew branches The leaves soon bloom and bear fruit. By the end of October, when the grapefruit matures, the green-yellow fruit weighs about 2 pounds. When picked and tasted, it tastes better, but the juice has little residue. The pulp contains many grapefruit seeds and the shape of the fruit is irregular. , Thick skin affects the quality. Wu Dengqing felt that the quality of the pomelo he grew and the pomelo he ate in Jinhua had significantly deteriorated. At a gathering of friends, Wu Juren learned that there was a young woman named Wu Jiemu in Tanbian Village. She was delicate and beautiful, and she was also a famous dancer in the Putian Xian Opera Troupe. When she went out to perform a few years ago, she led A pomelo seedling was planted next to his house and has blossomed and bear fruit. It is of excellent quality and tastes good. The pulp of the pomelo is seedless, juicy and residue-free. However, the fruit is not big, only about half a catty. After Wu Dengqing learned about it, he brought it with him. With their own grapefruits, they visited Wu Jie’s mother’s house. When they tasted each other’s grapefruits, they felt that only by integrating the advantages of both sides could they achieve good quality. The ears were cut off and grafted onto Wu Dengqing's pomelo tree. After careful management, the newly grafted pomelo trees finally bear fruit. When harvested at the end of October, the fruit weighs 1.5-2 pounds, looks like a large weight, has a green and yellow color, and has a high yield. When tasting the inner quality, it has Combining the advantages of both sides, it is fragrant and refreshing, juicy and tender, seedless and residue-free, and fragrant. It is the best pomelo. Wu Juren and Wu Mingdan were very happy to regard it as a rare and rare fruit, and named it "Wendan pomelo". Its metaphorical meaning is that a good pomelo was bred by the people named "Wen" and "Dan", and its name is also elegant and subtle.

After that, they carefully cultivated and continued to breed this excellent variety and gave it to relatives and friends for planting. A few years later, this kind of pomelo was cultivated sporadically in Baoxing, Xincuozi, Chenku and other natural villages in Duwei Town. At that time, because the output of this kind of pomelo was very small, it was mostly used as treasures as gifts to relatives and friends, bosses, distinguished guests, and was even used by local officials as tribute to the court. (Album from Strait Tourism News Network.) 2011 Duwei Wendan Pomelo Opening Ceremony Photo Album Production Situation After the cultivation was successful in the late Qing Dynasty, people used high-pressure method to raise seedlings and spread them to neighboring villages. In 1949, the output of Wendan pomelo in Duwei reached 2,500 kilograms. Because Wendan pomelo has the characteristics of parthenocarpy, the fruit is seedless, crisp and sweet. In November 1984, when President Xi Jinping inspected Fujian, he tasted it and named it "Duwei Seedless Honey Pomelo". In 1980, the county's total planting area was only 198 acres, and its output was only 8 tons. In 1983, it was evaluated as an excellent pomelo variety by the Fujian Provincial Science and Technology Commission. It was also recognized as a top pomelo variety by the Ministry of Agriculture, the Chinese Academy of Sciences, and the Chinese Institute of Botany. In 1992, the planting area of ??Wendan pomelo in the county reached 2,481 acres, with an annual output of 1,050 tons. Longhua, Daji, Laidian, Bangtou, etc. also introduced the species one after another. In 1998, it developed to a scale of more than 10,000 acres, with an output of 6,000 tons and an output value of more than 15 million yuan. In order to better guide the development of Duwei Wendan pomelo, Duwei Town established the Duwei Town Wendan Pomelo Association in 1998, and in 1999 it established Duwei Nong Industrial and Trade Fruit Development Co., Ltd. applied to the Trademark Office of the State Administration for Industry and Commerce to register the geographical indication trademark "Duwei" brand Wendan pomelo, and was approved for use in April 2000, with the registration number 1388985. In 2010, 35,000 acres of Wendan pomelo were planted in Duwei Town, with an annual output of 20,000 tons and an annual output value of 70 million yuan. Duwei fruit farmers are picking Wendan pomelo. Honorary certification. Duwei Wendan pomelo not only has high yield, output value and efficiency, but also has continuously improved product quality, which is definitely recognized by consumers and relevant departments. In 2000, the "Duwei" brand Wendan pomelo was recognized as a "China International Agricultural Expo Famous Brand Product" by the China International Agricultural Expo; in 2002, 2005, and 2008, the "Duwei" brand Wendan pomelo was continuously rated as a "Famous Brand Product" by the People's Government of Fujian Province. "Fujian Famous Brand Product"; in 2002, the "Duwei" brand Wendan pomelo was recognized as a "mark of origin" by the General Administration of Quality Supervision, Inspection and Quarantine of China; in 2002, 2005, and 2008, the "Duwei" brand Wendan pomelo was continuously recognized by the China Green Food Development Center Recognized as "Green Food Class A Certificate"; in 2004, the "Duwei" brand Wendan Pomelo was recognized by the Ministry of Agriculture of China as a "Famous and Excellent Base for South Asian Tropical Crops"; in 2006, the "Duwei" brand Wendan Pomelo was recognized by the Fujian Provincial Famous Trademark Recognition Committee It is a "famous trademark of Fujian Province"; in 2010, the "Duwei" brand Wendan pomelo was recognized as a "geographical indication product protection" by the General Administration of Quality Supervision, Inspection and Quarantine of China. In November 2007, the town was rated as "China's High-Quality Pomelo Base Township" by the China Fruit Circulation Association. Product Quality In 2010, after review and approval by the General Administration of Quality Supervision, Inspection and Quarantine, it was decided to implement national geographical indication product protection for Duwei Wendan pomelo from May 24, 2010 (General Administration Announcement No. 53 of 2010). The protection scope of the Duwei Wendan pomelo geographical indication product is the administrative area under the jurisdiction of two towns, including Duwei Town and Daji Town, Xianyou County, Fujian Province. Producers within the protection scope of Duwei Wendanyou geographical indication products using the special mark may apply to the Quality and Technical Supervision Bureau of Xianyou County, Fujian Province for the use of the "Special Mark for Geographical Indication Products". After review by the Fujian Provincial Bureau of Quality and Technical Supervision, the manufacturer will The General Administration of Quality Supervision, Inspection and Quarantine announced the approval. The statutory testing agency for Duwei Wendan pomelo is designated by the Fujian Provincial Bureau of Quality and Technical Supervision. Quality and technical requirements (1) Variety Wendan pomelo. (2) Site conditions: Soil type red soil, soil layer thickness ≥1m, organic matter content >1.5%, pH value 5.0 to 6.5, groundwater level below 0.8m. (3) Cultivation and management 1. Seedling cultivation: Use sour pomelo as rootstock for grafting and propagation. 2. Colonization: Autumn planting is from October to November, and spring planting is from February to March. The planting density is ≤495 plants/hm2. 3. Plastic pruning: Mainly pruning in winter, supplemented by pruning in summer to ensure ventilation and light transmission of the crown. 4. Fertilization: mainly organic fertilizers, with an annual application of decomposed organic fertilizers ≥ 3000kg/hm2. 5. Environmental and safety requirements: The use of pesticides, chemical fertilizers, etc. must comply with relevant national regulations and must not pollute the environment. (4) Harvesting: Harvest in stages after the peel area has changed color ≥ 3/4, that is, after mid-October.

(5) Quality characteristics 1. Sensory characteristics: The fruit is pear-shaped or tall and oblate, with light yellow skin and waxy flesh, easy peeling and softness, moderate sweetness and sourness, no seeds or few seeds. 2. Physical and chemical indicators: soluble solid content ≥10.0%, total acidity (calculated as citric acid) ≤0.9%, solid-acid ratio ≥11.1, edible rate ≥55.0%, single fruit weight 500g to 1500g. 3. Safety requirements: Product safety indicators must meet relevant national regulations for similar products.