Lactuca sativaL.Lettuce· Vegetables· bred by Rijk Zwaan Zaadteelt en Zaadhandel B.V.
also searched as: туккадона
Variety description
10 August 2026
The variety forms a large, dense leaf rosette with an average head weight of about 500 g. The maturation period is 55–60 days. The plant possesses the Knox genetic trait, which naturally slows down the browning of leaves at the cut, increasing shelf life.
The plant is intended for open field cultivation and is suitable for growing during the spring, summer, and autumn periods. The variety shows high resistance to downy mildew, lettuce aphid, mosaic virus, and tip burn. It is distinguished by plasticity under stress conditions and resistance to bolting.
The recommended planting density when grown for heads is 8–10 plants per 1 m², and for lettuce hearts — 13–14 plants per 1 m². The produce is suitable for both fresh market sale and industrial processing.
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 3
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data for which we do not publish: their registry licenses have not yet been verified.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
№ 274628
Registration
27 November 2017
NL
Netherlands
Active
№ SLA3614
Application
22 December 2015
Registration
27 November 2017
Registry
Number
Application
Registration
Terminated
Status
QZ
European Union
274628
—
27 November 2017
—
Active
NL
Netherlands
SLA3614
22 December 2015
27 November 2017
—
Active
Plant breeders' rights
The right is granted for a limited term: propagation of the variety requires a license from the rights holder.
Netherlands№ SLA3614
Active
Application filed
22 December 2015
Registered
27 November 2017
Currently active
indefinite in the register
More 5 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