Sheegene-20
ActiveVitis vinifera L. · Common grape vine
TIMOTHY SHEEHAN
10 August 2026
The variety has dark berries and is known by the synonyms Gymza or Kadarka. Clusters are medium or large, cylindrical-conical in shape, often winged, and of medium density. Berries are medium-sized, nearly spherical, dark blue in color, covered with abundant waxy bloom, and have thin, fragile skin.
Vines have medium to strong vigor and are characterized by high yield and fruitfulness. The variety tolerates drought and heat well, however, it is sensitive to winter frosts and susceptible to Botrytis cinerea. If excessively overloaded with yield, product quality in terms of sugar content and extractability decreases.
Gamza belongs to wine varieties and is used for the production of red table wines. Under optimal conditions, wines are characterized by a ruby color and aromas of cherry, raspberry, black pepper, and spices.
1 jurisdiction
Green indicates countries where the variety is listed in the national catalogue and its seeds are authorized for sale. Expired registrations are marked separately: the variety was previously admitted, but sale is no longer permitted.
The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ 4051355
Records are sourced from official registry publications. Data sources and legal status
The directory replicates the primary source. If an entry differs from the official publication, please specify the discrepancy and provide a link if possible. Corrections are added to the moderation queue.
This is a directory, not an official registry: data is based on public disclosures and may have changed. More about sources
Same species
Vitis vinifera L. · Common grape vine
TIMOTHY SHEEHAN
Vitis vinifera L. · Common grape vine
TIMOTHY SHEEHAN
Vitis vinifera L. · Common grape vine
Timothy P Sheehan, Sheehan Genetics LLC
Vitis vinifera L. · Common grape vine
Institut National de la Recherche Agronomique (FR)/Sicarex Beaujolais (FR)
Vitis vinifera L. · Common grape vine
Vitis vinifera L. · Common grape vine
Zdravko Nakov
Nearby in the species list GALZARÍ, Gamaret N, Gamay, Gamay de Bouze, Gamay de Chaudenay, Gamay Fréaux, GAMAY NOIR, Gaminot, Gaminot N, Gamza, Gamza N5, Ganson, Garant, Garantos, Garbesso, Garganega, GARNACHA BLANCA, GARNACHA PELUDA, GARNACHA ROJA, GARNACHA TINTA