Lactuca sativaL.Lettuce· Vegetables· bred by Rijk Zwaan Zaadteelt en Zaadhandel B.V.
also searched as: мелитона
Variety description
10 August 2026
The plant is of the open-head Romaine lettuce type, medium to large in size, with contrasting light green and dark green leaf coloration. The central leaf vein is dense and firm.
The variety possesses the Knox genetic trait, which slows down the browning of cuts after harvest, thereby extending shelf life. Intended for open field cultivation during spring and autumn periods, primarily in regions with a temperate climate.
Possesses high resistance to downy mildew (races Bl:29-40EU), Fusarium wilt (Fol:1), and lettuce aphid (Nr:0), as well as moderate resistance to lettuce mosaic virus (LMV:1).
Sources5
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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data for which we do not publish: their registry licenses have not yet been verified.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
№ 272961
Registration
29 July 2020
NL
Netherlands
Active
№ SLA4179
Application
31 January 2019
Registration
29 July 2020
GB
United Kingdom
Active
№ 19/646
Application
4 December 2020
Registration
31 March 2025
Registry
Number
Application
Registration
Terminated
Status
QZ
European Union
272961
—
29 July 2020
—
Active
NL
Netherlands
SLA4179
31 January 2019
29 July 2020
—
Active
GB
United Kingdom
19/646
4 December 2020
31 March 2025
—
Active
Plant breeders' rights
The right is granted for a limited term: propagation of the variety requires a license from the rights holder.
Netherlands№ SLA4179
Active
Application filed
31 January 2019
Registered
29 July 2020
Currently active
indefinite in the register
More 3 records
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