The red grape variety (also GM 6494-5) is a new breeding between Zarya Severa x St. Laurent. Synonyms are Ambros Rot, Geisenheim 6494-5 and GM 6494-5, and genes of Vitis amurensis and Vitis vinifera are included. Although it is clearly a hybrid from a botanical point of view, it is not considered as such. Strictly speaking, these are prohibited within the EU for quality wines and local wines. In 2003, a study was carried out on behalf of the European Commission to establish criteria for the assessment of "hybrid or non-hybrid". The variety was classified as a "non-hybrid" among several other new breeds with amurensis genes carried out in Germany. The basic crossing of the underlying variety was already done in 1964 by the breeder Vilém Kraus (1924-2013) in the former Czechoslovakia. This breeder later offered some vine seeds to Dr. Helmut Becker (1927-1990) in Geisenheim, who recognized the importance of the breeding material. From this seedling population, which was then called GM 6494, the seedling 6494-5 was selected due to its performance and later propagated under the variety name Rondo as an independent grape variety. Plant variety protection was granted in 1997. The variety was a cross-breeding partner for the new varieties Allegro and Prior.
![]()
The wein.plus encyclopaedia is a comprehensive, well-researched reference work. Available anytime and anywhere, it has become an indispensable part of teaching, used by students and myself alike. Highly recommended!
Dominik Trick
Technischer Lehrer, staatl. geprüfter Sommelier, Hotelfachschule Heidelberg