The citrus is mainly a hybrid of orange and orange or orange and pomelo. It is selected by natural or artificial hybridization and has excellent seed properties of various parents. Linyi citrus is a unique single cultivar selected from the introduced Xiangshanhong variety, which has been cultivated for many years and has unique quality.

At present, Linyi Manchu has formed an industrial chain integrating industrial services, production and development, seed supply and distribution services. In terms of industrial service system, the Linyi Manganese Industry Leading Group was established, and the Linyi Manchu Industry Development Office was set up. 15 Linyi Manchu production towns and towns were equipped with a professional technician. In terms of production and development system, the County Agricultural Bureau established a 200-mu Linyi Manchu Production Technology Demonstration Park in Jinjia Village, Chen Erxiang; Hunan Meilin Fruit Industry Co., Ltd. developed a 2000-mu Linyi Manchurian Standardization Production Demonstration Park in Wuli Village, Jiuli Township; The Linyi Manchu Industry Association has established a 300-mu Linyi Manchurian Experience Agriculture Demonstration Park in Lin'an Village, Wangcheng District. In terms of seedling system, the Linde citrus seedlings supply base of Changde City Agricultural Bureau special economic crop original seed field, Hunan Meilin Fruit Industry Co., Ltd., county citrus seedling breeding base, etc., has been formed to ensure the quality and supply of seedlings. In terms of the circulation system, the industrialized operation mode of “company + cooperative (association) + farmers” was adopted, and the circulation service centers such as the county Meilin Fruit Industry Farmers Professional Cooperative, the County Xiangpeng Fruit Industry Cooperative, and the Linyi Manchu Industry Association were formed. It is sold to large and medium-sized cities such as Beijing, Shanghai, Guangzhou and Xi'an, and exported to Russia, Canada and other countries. At the end of 2014, the planting area of ​​Linyi mandarin orange reached 21,000 mu, with an annual output of 25,000 tons of fresh fruit and a production value of more than 90 million yuan. Over the years, Linyi Manchu has been exhibiting and winning many times as a local specialty product: in 2008, it passed the national green product certification; in 2010, it won the first prize of the first Citrus Tasting Orange in Changde City; 2013-2014, It was awarded the “Most Popular Quality Agricultural Products” in the sixth and seventh high-quality agricultural products exhibition fairs in Changde City; in 2014, it won the Gold Award in the Central China (Hunan) International Agricultural Fair. Linyi miscellaneous orange has bright red color, good quality, unique flavor and rich nutrition. Linyi mandarin orange has the characteristics of tangerine and sweet orange. The fruit weight is about 200 grams, the fruit is spheroidal; the skin is smooth and shiny, orange-red; the flesh is orange-red, the meat is crisp, the juice is juicy, the slag is scum, and the scent is refreshing and refreshing. Linyi Manchu is rich in nutrients, moderate in sugar and acid ratio, rich in water-soluble fiber, vitamin C, selenium and zinc. After testing, soluble solid content ≥ 12%, total sugar content ≥ 10%, edible rate ≥ 80%, vitamin C content ≥ 50mg / 100g, selenium ≥ 0.01mg / kg, zinc ≥ 1.5mg / kg, with higher Nutritional value.

Quality technical requirements for Linyi miso citrus 1. Excellent variety of citrus varieties "Xiangshanhong". Second, the site conditions soil type is red loam, pH value 5.0 to 6.5, organic matter content ≥ 2%, soil layer thickness ≥ 100cm, groundwater level ≥ 1m. Third, cultivation management Seedling breeding: The scion is collected from the robust female tree without quarantine pests and diseases, and the rootstock is used as a rootstock for grafting and breeding. 2. The planting density is ≤80 plants per 667 m2. (2) Fertilization: Apply organic fertilizer ≥ 30 tons / hectare per year. (3) Flower and fruit management: leaf to fruit ratio ≥ 50:1. (4) Environmental and safety requirements: The use of pesticides, fertilizers, etc. must comply with relevant national regulations and must not pollute the environment. 4. Harvesting begins when the fruit is colored more than 90% from late November to early December, and harvesting is prohibited in rainy days. V. Quality characteristics 1. Sensory features: fruit-shaped spheroidal, bright color; thin skin, orange-red; fleshy juice more crispy, sweet and refreshing; resistant to storage. 2. Safety and other quality technical requirements: Product safety and other quality technical requirements must comply with relevant national regulations.

Apply to：
Producers within the production area of ​​Linyi County may submit an application to the Quality and Technical Supervision Bureau of Linyi County, Hunan Province for the use of the “Special Mark for Geographical Indication Products”, which shall be reviewed by the Hunan Provincial Bureau of Quality and Technical Supervision and announced to the General Administration of Quality Supervision, Inspection and Quarantine for approval. The testing organization of Linyi Manchu is selected by the Hunan Provincial Bureau of Quality and Technical Supervision in the testing institutions that meet the qualification requirements.