RS-9
ActiveVitis L. · Grapevine
UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER
10 August 2026
The variety is early, ripening at the end of August and accumulating a high level of sugar by September. The plant has medium vigor and loose foliage. The designation GK71 refers to the clone of the variety obtained during breeding work.
The grape demonstrates excellent resistance to gray mold, which allows it to be used for the production of late-harvest dessert wines. Resistance to downy mildew and powdery mildew is rated as medium. The fruits are distinguished by a spicy, muscat aroma and harmonious acidity.
Agricultural practice requires pruning to a long fruit cane due to the low productivity of the lower buds. For training systems, a fan system or high-stem systems are recommended.
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.
№ 319973
Records are sourced from official registry publications. Data sources and legal status
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Same species
Vitis L. · Grapevine
UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER
Vitis L. · Grapevine
UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER
Vitis L. · Grapevine
David W.Cain
Vitis L. · Grapevine
Vitis L. · Grapevine
Vitis L. · Grapevine
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Nearby in the species list Negrette N, Negretto N., NEGRO AMARO, Negro Amaro Cannellino, Negro Amaro Cannellino N., Negro amaro N., Negro Amaro Precoce N., Negru aromat, Negru de Drăgăşani, Nektár, Nemadex, Nemadex Alain Bouquet, Ner d'ala N., Nerello cappuccio N., Nerello Mantellato, Nerello mascalese N., Neretta cuneese N., Neretto di Bairo N., Nero, Nero amaro