Lactuca sativaL.Lettuce· Vegetables· bred by Rijk Zwaan Zaadteelt en Zaadhandel B.V.
also searched as: коверус
Variety description
10 August 2026
The plant forms a stable semi-heading cylindrical core with strong, dense leaf veins, which facilitates packaging. The variety is intended for early harvest and is recommended primarily for cultivation during the cool season.
The variety possesses high resistance to downy mildew races 29–40EU, lettuce aphid, and internal necrosis. It shows resistance to tip burn and bolting. The genetic Knox technology slows the browning and pinking of sap at leaf cuts, extending the shelf life of the produce.
The variety is universal and suitable for sale on the fresh market, industrial processing in salad mixes, and use in the food service sector.
Sources3
Loading…
Countries of admission
2 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.
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data for which we do not publish: their registry licenses have not yet been verified.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
Breeder
Rijk Zwaan Zaadteelt en Zaadhandel B.V.Developed the variety
Applicant
Rijk Zwaan Zaadteelt en Zaadhandel B.V.Submitted the application to the register
Rights holder
Rijk Zwaan Zaadteelt en Zaadhandel B.V.Holds the rights to the variety
Maintainer
Rijk Zwaan Zaadteelt en Zaadhandel B.V.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
№ 301373
Registration
24 May 2024
NL
Netherlands
Active
№ SLA4902
Application
13 January 2023
Registration
24 May 2024
Registry
Number
Application
Registration
Terminated
Status
QZ
European Union
301373
—
24 May 2024
—
Active
NL
Netherlands
SLA4902
13 January 2023
24 May 2024
—
Active
Plant breeders' rights
The right is granted for a limited term: propagation of the variety requires a license from the rights holder.
Netherlands№ SLA4902
Active
Application filed
13 January 2023
Registered
24 May 2024
Currently active
indefinite in the register
More 2 records
protections in other jurisdictions are shown on the map above.
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