The white grape variety (also Geisenheim 9-97) is a new breed between Riesling x Sylvaner what was released by in 2012 DNA analysis has been confirmed. The name honored Count Friedrich Karl Maximilian von Ostein (1735-1809), who had the Ostein Palace and a landscape park built in Geisenheim. Incidentally, the three new varieties are with the same parents Multaner. Oraniensteiner and Rieslaner emerged. The breeding was done by Dr. Heinrich Birk (1898-1973) in 1929 at the research institute Geisenheim in the Rheingau. The variety protection was only granted in 1984. The medium to late ripening, productive vine is resistant to frost, both mildews and Botrytis, It produces fresh, acidic white wines with aromas of currants and lemons. In Germany there is a trial extension. In 2010, only a small crop with one hectare was in New Zealand reported (Statistics Kym Anderson ).
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012
Images: Ursula Brühl, Doris Schneider, Julius Kühn Institute (JKI)