The red grape variety is an interspecific new breeding between Cabernet Sauvignon x unknown resistance partners. Synonyms are Cabernet Noir, VB 91-26-04 and Valentin Blattner VB 91-26-04, with genes from Vitis amurensis and Vitis vinifera. The hybrid was crossed in 1991 by Valentin Blattner, the owner of a vineyard in Soyhières in the canton of Jura in Switzerland. The early-ripening, loose-berry and frost-hardy vine is resistant to both mildew and botrytis, which is why it is considered a PIWI variety. It produces red wines with soft tannins and a wide range of aromas of dark cherries, juniper berries, violets, cloves and pepper. The variety is cultivated by one producer in small quantities in the Swiss canton of St. Gallen (3 ha), Belgium and the Netherlands. In 2016, however, only the stock in Switzerland was reported (statistics Kym Anderson).
There is a vast number of sources on the web where one can acquire knowledge about wine. But none has the scope, timeliness and accuracy of the information in the encyclopaedia at wein.plus. I use it regularly and rely on it.Sigi Hiss
freier Autor und Weinberater (Fine, Vinum u.a.), Bad Krozingen