The white grape variety probably comes from Italy (or Spain ). Synonyms are Bernarda, Bernarde, Bernardine, Blanc de la Salle, Blanc de Morgex, Blanc du Valdigne, Legiruela (Spain), Plant de la Salle and Prié Blanc. The exact origin is in Italian aosta Valley, where it was first mentioned in 1691. There used to be two varieties, one in the Valdigne area (upper part of the Valle d'Aosta) and one that has since disappeared in the Valpelline area. At the beginning of the 19th century, like some other varieties, it probably came to the Swiss canton via St. Bernhard Wallis which is why she is called Bernarde there. This pass is the connection between the Valais Rhône Valley and the Aosta Valley at 2,469 meters.
Through two in 2010 DNA analysis there was amazing knowledge. In the Spanish province of Ávila ( Castile and Leon ) Local Legiruela variety is identical. And a Parent-offspring relationship there are Spanish varieties Albillo Real. Lairén and Santa Magdalena, as well as the Italian variety Luglienga Bianca (with the synonym Prié Blanc). Through 2005 investigations, a parent-offspring relationship was established with the two Swiss varieties Mayolet and Primetta (Prié Rouge) found. There are also relationships with the varieties through the Mayolet variety Cornalin. Neret di Saint-Vincent and Roussin, In the opinion of the Swiss biologist Dr. José Vouillamoz the two varieties Luglienga Bianca and Prié could be at the top of the family tree of all these varieties. The variety becomes a grape variety group in Switzerland Old plants counted.
The vine ripens very early and is resistant to frost but prone to bunch rot, It produces an acidic, sparkling white wine. The variety is particularly suitable for great heights. It is located in the Aosta Valley at 900 to 1,200 meters above sea level ungrafted grown on low pergolas. Here it is pure in Blanc de Morgex and de La Salle contain. In 2010, 33 hectares of vineyards were reported in Italy, 29 of them in the Aosta Valley and 4 surprisingly in Apulia (Statistics Kym Anderson ). In Switzerland, it is cultivated in the canton of Valais under the names Bernarda and Bernarde on just less than one hectare.
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012
Images: Ursula Brühl, Doris Schneider, Julius Kühn Institute (JKI)