The white grape variety (also Geilweilerhof 33-13-113) is a new variety between(Silvaner x Riesling) x Müller-Thurgau according to DNA analyses published in 2012. The cross was made in 1930 by the breeder Peter Morio (1887-1960) at the Institute for Grapevine Breeding Geilweilerhof in Siebeldingen-Pfalz. The plant variety protection was granted in 1971. By the way, the variety Bacchus was created with the same parents. Optima was a crossbreeding partner in the new breeding of Orion, a vine that ripens very early and is resistant to downy mildew, but sensitive to frost and susceptible to botrytis. It produces yellow-green, low-acid wines with a Riesling like aroma. In 2010, the variety occupied 59 hectares of vineyard area in Germany, with a sharp downward trend. Small stocks can also be found in Austria, England (2 ha) and Canada (6 ha).
Pictures: Ursula Brühl, Doris Schneider, Julius Kühn Institute (JKI)