RS-9
ActiveVitis L. · Grapevine
UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER
10 August 2026
The variety is widely cultivated in the Canary Islands, and its origin is linked to the Portuguese regions of Douro and Dão. The plant is characterized by moderate growth vigor and a relatively small amount of leaves.
In winemaking, the variety is valued for its contribution to the elegance and longevity of wines, especially in the creation of blends and port wines. Scientific studies record the variety's adaptive mechanisms to environmental stress factors, such as heat stress and soil salinity, through a specific salicylic acid accumulation response.
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.
№ Castellana negra*ES x
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 Cascade ISK, Cascal B, Casculho T, Casetta N., Castália B, Castañal, Castelã T, Castelão Branco B, Castelão T, Castelino T, Castellum, Castellum P.1, Castelo Branco B, Casteloa T, Castets N, Castiglione N., Catalanesca bianca B., Catalanesca N., Catanese nero N., Catarratto