The white grape variety (also Quanyu B) is a new breeding between Riesling x Muscat d'Hamburg. The crossing took place at the Shandong Institute of Wine Grape in Yantai. The vine is used as wine grape in China. However, no stocks were reported in 2016 (Kym Anderson statistics).
Serious sources on the internet are rare - and Wine lexicon from wein.plus is one such source. When researching for my articles, I regularly consult the wein.plus encyclopaedia. There I get reliable and detailed information.Thomas Götz
Weinberater, Weinblogger und Journalist; Schwendi