The origin of the white grape variety is unclear. Supposedly, she was in 1965 from the Dongfeng Farm along with other grape varieties such as French game and Rose Honey in China introduced. According to another hypothesis, it came from the early 19th century from Europe, for which there is no proof. The Chinese ampelographer Qin Sun is an intersection Vitis vinifera x Vitis labrusca, This has not been done yet DNA analysis approved. It may be identical to the US Labrusca strain from Connecticut of the same name that is found in the VIVC catalog when table grape to be led. In the VIVC catalog, by the way, another table grape variety named Kristal (with synonym Crystal) comes from origin South Africa specified.
The early ripening vine (from China) is well resistant to frost and generally against vine diseases. She brings along white wines Foxton (which speaks for Vitis labrusca genes) and rose like Aroma and is also called table grape used. The variety is grown mainly in the southwestern province of Yunnan. In 2010, under the name Crystal cultivated areas in Russia (171 ha), as well as overseas in Chile (2 ha) and Peru (2 ha), but no quantities reported for China (Statistics Kym Anderson ). However, it is unclear which of the possibly different Crystal varieties it is.
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012