RS-9
ActiveVitis L. · Grapevine
UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER
10 August 2026
The variety was obtained by complex crossing of genetic material from Vitis berlandieri, Vitis labrusca, Vitis lincecumii, Vitis rupestris, and Vitis vinifera species. The flower is hermaphroditic. The leaf is rounded, five-lobed, slightly dissected, with sparse pubescence on the underside; the petiole sinus is closed with an elliptical opening.
Clusters are medium-sized, cylindrical, elongated. Berries are small, round, dark blue, almost black in color, covered with a thick bloom. The variety possesses resistance to oidium and grey mold, while slight susceptibility to bunch stem necrosis and flower drop is noted.
The pulp and juice of the berries are intensely colored dark violet, which allows the grape to be used as a teinturier. The primary purpose is the production of red wines with deep color and structure, as well as use in blends.
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.
№ Piroso*DE 767
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
Nearby in the species list Piros chasselas, Piros chasselas Bb.61/1, Piros Chasselas K.18, Piros chasselas Kt.15, Piros tramini, Piros tramini Bb.47/1, Piros Tramini Bb.48/1, Piros tramini Kt.2, Piros tramini P.13, Piros veltelini, Pizzutello bianco B., Pizzutello Negro, Plajka, Planinka, Plant de Brunel N, Plant droit N, Plant Medoc, Planta Fina de Pedralba, Planta Mula, Planta Nova