The white grape is a new breed between Tramín Cervený ( Gewurztraminer ) x Veltlínske Červené ( Red Veltliner ). Synonyms are Ryvola (was first name) and TCVCB 15/4. The crossing took place in 1958 in Slovakia (then Czechoslovakia) by Dorata Pospisilova and Ondrej Korpas. The variety protection was granted in 1998. By the way, with the same parents is also the new breed Hetera emerged. The medium to late-ripening, high-yielding vine is resistant to frost and wrong mildew but prone to Botrytis, It produces full-bodied, alcoholic, aromatic White wines with flowery Aromas. She will be in the Slovakia (133 ha) and in Czech Republic (19 ha) cultivated. In 2010, she finished a total of 152 hectares of vineyards (Kym Anderson ).
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012