The white grape (also Geisenheim 7815-1) is a new breed between Arnsburger x Seyve-Villard 1-72 ( Rayon d'Or x Bertille Seyve 450). They are genes of Vitis aestivalis. Vitis labrusca. Vitis riparia. Vitis rupestris and Vitis vinifera contain. The intersection of hybrid took place in 1978 in the research institute Geisenheim (Rheingau) by Dr. med. Helmut Becker (1927-1990). The medium maturing vine is resistant to both mildews and Botrytis why she as PIWI Variety applies. It produces acid-stressed, a Pinot Blanc ( Pinot Blanc ) similar white wines. No stocks were reported in 2010 (Kym Anderson ).
Pictures: Ursula Bruehl, Doris Schneider, Julius Kühn Institute (JKI)