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Roussette d'Ayze

The white grape variety comes from France, Synonyms are Bonne Roussette d'Ayze, Grosse Roussette, Maclon, Riusse, Riussette. It may not be used with other grape varieties with the name part Roussette be confused. Pierre's guess Galet (1921-2019) that it was an early maturing mutation of the variety Mondeuse Blanche was refuted in 2009. There may be one Parent-offspring relationship with the variety Ondenc, According to in 2013 DNA analysis is a presumably natural cross between Altesse x Gouais Blanc, However, this is based on only 20 DNA markers (see under molecular Genetics ).

The early ripening vine is susceptible to fungal diseases like the wrong ones mildew and Botrytis, It produces acidic white wines that are mainly used in sparkling wine production. The endangered variety is found in the region Savoy grown where they are in the two areas Bugey and Vin de Savoie is allowed. In 2010, only one hectare was shown (Statistics Kym Anderson ).

Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012

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