Tongnan Radish

Tongnan Radish

Tongnan Radish is a product with a geographical indication.

　　Tongnan County is one of Chongqing’s four core vegetable production bases, with a long history of radish cultivation. According to the *Tongnan County Agricultural Annals*—Volume 22 of the Local Chronicles Series of Sichuan Province’s Tongnan County—it was introduced by the Sichuan agricultural authorities in 1946 (the 35th year of the Republic of China). The *Tongnan County Agricultural Annals* (1986–2005) records that Tongnan radishes are widely cultivated across the county.

　　Tongnan is a national model county for pollution-free agricultural production. With a long history of radish cultivation, its radishes are prized for their sweet, crisp, tender texture, juicy and easy-to-digest flesh, as well as their large size, white color, and pollution-free quality. Known as "ginseng among vegetables," Tongnan radishes are popular in markets across Beijing, Liaoning, Jilin, Heilongjiang, Sichuan, Guizhou, and Guangxi.

　　It is reported that the geographical indication protection area for "Tongnan Radish" covers 22 towns and streets in the county, including Guilin. Moving forward, all radishes produced within this protected geographical area may use the "Tongnan Radish" public geographical indication label.

　　Geographical Scope

　　The geographical indication protection area for Tongnan Radish includes 22 towns and streets along the Fu and Qiong rivers in Tongnan County: Guilin, Shanghe, Yuxi, Mixin, Shuangjiang, Zitong, Biekou, Chongkan, Baizi, Tai’an, Huayan, Longxing, Guxi, Baolong, Qunli, Xiaodu, Xinsheng, Tangba, Wofo, Wugui, Shouqiao, and Tianjia. This area lies in flatland at elevations between 212 and 450 meters above sea level. It stretches from Shijing Village in Shanghe Town in the east, to Yujian Village in Tai’an Town in the south, to Linjiang Village in Chongkan Town in the west, and to Mixin Town in the north. Its geographical coordinates are 105°31'41″–106°00'20″ east longitude and 29°47'33″–30°26'28″ north latitude. The planting area spans 8,000 hectares, with an annual output of 450,000 tons.

　　Product Quality Characteristics

　　1. Product Quality Features: Tongnan radishes have smooth skin, dense flesh, are crisp and tender, slightly sweet, free of bitterness or hollow cores or blackheart, and emit a rich aroma when cooked. They are tender, easy to digest, moist, and have a sweet aftertaste. 2. Internal Quality Indicators: Tongnan radishes contain over 10% vitamin C, over 0.4% crude protein, and over 2.0% soluble sugar. 3. Product Quality and Safety Standards: The growing environment must comply with the *Pollution-Free Vegetable Growing Environment Conditions* (NY5010), and the product quality must meet the *Pollution-Free Radish* standard.