The white grape variety is an interspecific new breed between Riesling x Roucaneuf, Synonyms are Risus, Risys and Rysus. They are genes from Vitis berlandieri. Vitis labrusca. Vitis lincecumii. Vitis rupestris and Vitis vinifera contain. The crossing of the hybrid took place in the Ukraine by the breeder P. Golodriga. The medium to late ripening, productive vine is resistant to frost to minus 26 ° Celsius and fungal diseases, It produces Riesling-like white wines, which are also for the distillation be used. The variety is in Russia grown in the Rostov and Krasnador areas. In 2010, 115 hectares were designated here.
Source: Wine Grapes / J. Robinson, J. Harding, J. Vouillamoz / Penguin Books Ltd. 2012