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About Optima
Optima is a white wine grape that was created by viticulturalist Peter Morio at the Geilweilerhof Institute for Grape Breeding in the Palatinate in 1930. Morio crossed a Riesling x Silvaner cross with Müller-Thurgau. The Riesling x Silvaner is sometimes mentioned as Rieslaner, but more often just as "a Riesling x Silvaner". Due to the random element of genetic recombination involved in sexual reproduction of plants, no two crosses of the same parent grape varieties will be identical, so there is a difference between the Riesling x Silvaner cross Rieslaner, and each other such cross.
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