RS-9
ActiveVitis L. · Grapevine
UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER
10 August 2026
The variety is the result of a natural crossing of Blaue Zimmettraube and Grüner Sylvaner. The plant is characterized by weak to moderate shoot vigor and high productivity, reaching 160–200 hectoliters per hectare.
The variety is sensitive to frost and prone to flower abortion. Wines produced from these grapes are characterized by a moderate to low alcohol and tannin content, as well as a fresh fruity aroma with notes of raspberry and red berries.
3 jurisdictions
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.
№ Modrý Portugal
№ Blauer Portugieser*DE 765
№ Portoghese N.
№ Portugais bleu N
№ Portugalka
№ H2053
№ VIN037
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 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 Blauburger, Blauburger E.2, Blauburger E.93, Blauburgunder, Blauburgunder*, Blaue Zimmettraube, Blauer Burgunder, Blauer Frühburgunder, Blauer Limberger, Blauer Portogieser, Blauer Silvaner, Blauer Spätburgunder, Blauer Trollinger, Blauer Wildbacher, Blauer Zweigelt, Blaufränkisch, Bljuzgavac, BLOMG05, BLOMG08, Blue Spirit