RS-9
ActiveVitis L. · Grapevine
UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER
Variety description
10 August 2026
The variety has a medium ripening period and vigorous vines. Genetically, it is a descendant of Pinot noir, originating from a natural cross. The name of the variety is associated with the feast of Saint Lawrence, when the berries begin to change color.
The plant is sensitive to weather conditions, particularly during the flowering period, which makes it prone to flower abortion. Frost resistance reaches -20 °C. The variety is susceptible to major fungal diseases of grapes, such as downy mildew and Botrytis.
The berries are dark blue, round or oval in shape, and possess a thick skin and juicy flesh with highly pigmented juice. Wines made from this grape are characterized by aromas of cherry, spices, and wild berries, and have aging potential. The variety is actively used as a parent form for breeding new hybrids.
Sources8
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Countries of admission
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.
Also known as
breeder code Vavřinecké
A single variety may be registered in different countries under different names. All records are consolidated into one profile based on the breeder's code—an internal number that is identical for the variety across all registries.
- Saint - laurent primary SI
- Saint Laurent CZ, QZ, SI
The primary name shown is the one under which the variety is registered in the largest number of jurisdictions. Search finds the variety by any of its names.
Variety in registries Regions of admission, rights holders, and status of plant breeders' rights
Parties
- Applicant
- Šlechtitelská stanice vinařská, s.r.o. (CZ) 52 Submitted the application to the register
- Maintainer
- Vinofrukt, a.s. (CZ)/Šlechtitelská stanice vinařská Velké Pavlovice, a.s. (CZ)/Ing. Alois Tománek (CZ)/VÚRV Praha-Ruzyně, Výzkumná stanice vinařská (CZ)/AMPELOS, ŠLECHTITELSKÁ STANICE VINAŘSKÁ ZNOJMO, s.r.o. (CZ) 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
№ Šentlovrenka
-
SI Slovenia Protection expired
№ VIN056
- Terminated
- 1 January 2005
-
QZ European Union Active
№ Svätovavrinecké
-
CZ Czechia Active
№ H8033
- Application
- 1 January 1941
- Registration
- 5 May 1941
-
SI Slovenia Active
№ VIN058
- Application
- 11 November 2004
- Registration
- 31 December 1989
Records are sourced from official registry publications. Data sources and legal status
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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
Saint Côme B
ActiveVitis L. · Grapevine
Saint Emillion
ActiveVitis L. · Grapevine
Saint Laurent N.
ActiveVitis L. · Grapevine
Nearby in the species list S. Martino N., S. Michele N., Sabrilong, Sabro, Sachara, Sacra Bianca, Sacy B, Sagrantino N., Saint Côme B, Saint Emillion, Saint Laurent N., Saint-Macaire N, Saint Martin, Saint-Pierre doré B, Sakeiko, Samarrinho B, Samso, Sanforte N., Sangiovese, Sangiovese N.