RS-9
ActiveVitis L. · Grapevine
UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER
Variety description
10 August 2026
The variety is a sultana, characterized by a hermaphroditic flower and vigorous vine growth. The ripening period is approximately 150–160 days, with the harvest maturing in late September or October. The clusters are conical in shape and of medium density, with an average weight of 700–800 g, reaching up to 2 kg under favorable conditions.
The berries are large, oval-shaped, ranging from dark-purple to almost black in color, with firm, crisp flesh and thin, durable skin. The variety belongs to the second class of seedlessness. It has moderate winter hardiness down to -19…-21 °C and low resistance to downy mildew and powdery mildew, while being resistant to gray mold.
The variety is responsive to agrotechnical practices such as girdling and gibberellin treatment to increase berry size. Moderate vine load and short pruning to 2–3 buds are recommended, especially in regions with high cumulative active temperatures.
Sources5
- Loading…
Countries of admission
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.
Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified. This section will be available upon verification.
Variety in registries Regions of admission, rights holders, and status of plant breeders' rights
Parties
- Applicant
- U.S.D.A. (US) 5 Submitted the application to the register
- Rights holder
- U.S.D.A. (US) 5 Holds the rights to the variety
- Maintainer
- U.S.D.A. (US) 5 Responsible for variety maintenance
Admission to trade
The variety is listed in the national registry — its seeds are authorized for sale in this country.
-
QZ European Union Active
№ Autumn Royal*FR
-
ZA South Africa Active
№ 2001/5368
- Application
- 22 August 2001
- Registration
- 6 March 2003
Records are sourced from official registry publications. Data sources and legal status
Found an error in the record?
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
Other varieties: Grapevine
RS-3
ActiveVitis L. · Grapevine
UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER
IFG Thirty Six
ActiveVitis L. · Grapevine
David W.Cain
Autum Seedless
ActiveVitis L. · Grapevine
Autumn King
ActiveVitis L. · Grapevine
VI¥A DEL DEPARTAMENTO DE AGRICULTURA DE LOS EEUU DE ACA. EN EL SERVICIO DE INV. AGRICOLA
Autumn Royal N.
ActiveVitis L. · Grapevine
Nearby in the species list Augusta, Aurana, Aurelius, Auriu de Ştefăneşti, Aurora, Aurora ISK, Autrichien, Autum black, Autum Seedless, Autumn King, Autumn Royal N., Autumn Seedless B., Auxerrois, Auxerrois B, Avana' N., Avanti, Avarengo N., Avesso B, Avgoulato B, Avgoustiatis N