The white grape variety comes from the border area Italy / Switzerland, Synonyms are Blanc de Maurienne (Savoy), Petit Prié Tardif, Regis, Resi, Rèze Blanc, Rèze Blanche, Rèze Jaune, Rèze Vert, Rèze Verte and Rèzi. According to several DNA analysis turned on Parent-offspring relationship to the varieties Arvine. Arvine Grande. Diolle (all three Valais), Cascarolo Bianco (Piedmont), Groppello di Revò and Nosiola (both Trentino) out. According to 2009, DNA analysis is the in Savoy grown variety Blanc de Maurienne identical. A relationship probably also exists to the Piedmontese variety Freisa, This also proves the earlier wide distribution and the high age of the vine. In 2008, a color was mutation found with red berries.
It is one of the oldest varieties in the Alps; she is also in the Swiss Wallis to the grape variety group Old plants counted. Already in 1313 she was together with the varieties Neyrun (?) And Humagne Blanche Documented in the "Directory of Anniviers" under the name "Regy". According to an unverifiable hypothesis, she is a descendant of the Pliny the Elder (23-79) mentioned Uva raetica, from which the famous ancient wine Raeticum was pressed. The medium to late ripening vine is prone to Botrytis, It produces an acidic white wine with aromas of gooseberry and green apple. In Valais, the variety was in the 19th century before the phylloxera still very common. She will be here in Vin of the Glacier (Glacier wine) used. In 2010, however, no stocks were reported (Kym Anderson ).
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012
Pictures: Ursula Bruehl, Doris Schneider, Julius Kühn Institute (JKI)