Synonym (also Valentin Blattner 11-11-89-12) for the grape variety Riesel; see there.
The white grape variety is an interspecific new breeding between Cabernet Sauvignon x unknown resistance partners. Synonyms are VB 11-11-89-12 and Valentin Blattner 11-11-89-12. It contains genes from Vitis amurensis and Vitis vinifera. The...
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Technischer Lehrer, staatl. geprüfter Sommelier, Hotelfachschule Heidelberg