This white grape variety is a new cross between Yulski Biser (Pearl of Csaba x Muscat d'Hamburg) x Pannonia Kincse. Synonyms are JBPK 13/37 and Kraus 6/6. The cross was made in 1970 in what was then Czechoslovakia by the breeder Dorata Pospisilova. It is used as table grape. No stocks were reported in 2016 (Kym Anderson).
Pictures: Ursula Brühl, Doris Schneider, Julius Kühn-Institut (JKI)
Serious sources on the internet are rare - and Wine lexicon from wein.plus is one such source. When researching for my articles, I regularly consult the wein.plus encyclopaedia. There I get reliable and detailed information.
Thomas Götz
Weinberater, Weinblogger und Journalist; Schwendi