RS-9
ActiveVitis L. · Grapevine
UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER
10 August 2026
The variety is the result of a natural cross between the variety Ferral and an unknown parent. In agronomy, the variety is known for its sensitivity to frost, susceptibility to downy mildew and powdery mildew, as well as a tendency for flower/fruit drop. At the same time, the plant tolerates hot climatic conditions well.
The berries of the variety have a thick skin. Despite the potential ability to produce intensely colored wines with good structure, the variety is used primarily as a table grape and has no industrial importance in winemaking. The variety is known under a multitude of synonyms, including Imperial and Napoleon.
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.
№ Don Mariano N.*IT 1
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 Doçal T, Doce T, Dolcetto N., Dolciame B., Dolčin, Dolga petla, Domiat, Domina, Dominga, Don Mariano, Don tilia, Dona Ana B, Doña Blanca, Dona Branca, Dona Branca B, Dona Joaquina B, Doña Maria, Dona Maria B, Donaris, Donatus KL01