This autochthonous red grape variety originates from the border region between Italy and Switzerland. Synonyms are Gros Oriou de Nus, Gros Rouge, Gros Vien, Gros Vien de Nus, Orious, Planta di Nus, Plant de Nus and Rouge de Fully. It must not be confused with the Rouge de Fully variety, despite the last synonym. The name derives from the commune of Nus. According to DNA analyses carried out in 2011, the variety originated from a presumably natural cross between Petit Rouge x unknown partner. There are also close relations to the varieties Eyholzer and Rouge du Pays. In Switzerland, the variety is counted among the Old Growths grape variety group. The early-ripening vine is resistant to frost, but susceptible to powdery mildew and botrytis. It produces a colourful red wine that serves as a blending partner in the DOC red wines Valle d'Aosta. The variety is cultivated exclusively in the Italian Aosta Valley in an area between the two municipalities of Avis and Donnaz. In 2016, 9 hectares of vines were reported with a decreasing trend (Kym Anderson).
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2011
Images: M.I.P.A.F - National Vine Certification Service
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