Lactuca sativaL.Lettuce· Vegetables· bred by Rijk Zwaan Zaadteelt en Zaadhandel B.V.
also searched as: стронекс
Variety description
10 August 2026
The variety belongs to the "red crispy" type and has an upright habit with a rosette located high above the soil. The "one-cut-ready" principle ensures the rosette breaks down into many small leaves, while Knox technology slows down oxidative processes at the cut sites, extending the shelf life of the produce.
The plant develops vigorously and is suitable for cultivation in protected and open ground, as well as in hydroponic systems. The variety has high resistance to downy mildew, lettuce root aphid, and Nasanovia aphid, as well as intermediate resistance to lettuce mosaic virus. Slow bolting allows for harvesting throughout the year.
Sources5
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 2
jurisdictions,
data for which we do not publish: their registry licenses have not yet been verified.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
№ 274354
Registration
28 February 2022
NL
Netherlands
Active
№ SLA4541
Application
5 November 2020
Registration
28 February 2022
Registry
Number
Application
Registration
Terminated
Status
QZ
European Union
274354
—
28 February 2022
—
Active
NL
Netherlands
SLA4541
5 November 2020
28 February 2022
—
Active
Plant breeders' rights
The right is granted for a limited term: propagation of the variety requires a license from the rights holder.
Netherlands№ SLA4541
Active
Application filed
5 November 2020
Registered
28 February 2022
Currently active
indefinite in the register
More 3 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