The white grape variety comes from France, Synonyms are Austenq, Baratszoeloe, Béquin, Blanquette, Dourec, Dourech, Guindolenc, Hamuszoeloe, Irvine's White, Oeil de Tour, Ondain, Ondainc, Ondenc Blanc, Ondent, Ondin, Oundenc, Oundenq, Oustenc, Oustenq, Oustenque, Piquepout de Moiss Plant de Gaillac and Trousseau Gris. Despite apparently suggesting synonyms or morphological No similarities with the varieties Bourboulenc (Ondenc) Mauzac Blanc (Bequin) Piquepoul Blanc or Trousseau Gris (mutation of Trousseau Noir ) can be confused. About the pedigree (parenthood) and possible relationships with the red varieties arrouya noir (Dourec Noir) or Canari Noir (Ondenc Noir) nothing is known. According to in 2009 DNA analysis there may be one Parent-offspring relationship with the variety Roussette d'Ayze, A color mutation with reddish gray berries is Ondenc Gris .
The early ripening, productive vine is susceptible to Botrytis. bunch rot. coulure and both mildews, It produces neutral white wines, which are also suitable for distillation be used. It is permitted in the appellations Bergerac. Bordeaux. Cotes de Duras and Gaillac, The old variety was first mentioned in 1783, and the quality of the grapes was praised. She was in earlier Southwest France widespread and occupied around 1,600 hectares of vineyards at the end of the 1950s. However, the stock has shrunk considerably since then; in 2010 only eight hectares of vineyards were shown in France. It followed in the 19th century Australia, where in 1976 by the French ampelographer Paul Truel (* 1924) was discovered under the names Irvine's White and Sercial. However, no stocks were shown here in 2010 (Kym Anderson ).
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012
Images: Ursula Brühl, Doris Schneider, Julius Kühn Institute (JKI)