Lactuca sativaL.Lettuce· Vegetables· bred by Rijk Zwaan Zaadteelt en Zaadhandel B.V.
also searched as: хаппинас
Variety description
10 August 2026
The variety forms medium to large, flat-round heads with a reliable closed base. The plant is intended for cultivation during the late spring, summer, and autumn periods in open field conditions.
A distinctive feature of the variety is the Knox technology, which slows down the process of leaf browning and pinking after harvest, extending the shelf life of the produce. Due to this property, the variety is in demand in the retail and processing segments.
The variety possesses high resistance to biotypes 0 and 1 of the lettuce aphid (Nasonovia ribis-nigri). This makes it suitable for use in organic farming, where the application of chemical plant protection products is limited.
Sources4
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Countries of admission
1 jurisdiction
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data for which we do not publish: their registry licenses have not yet been verified.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
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.
NL
Netherlands
Application submitted
№ SLA5279
Application
21 May 2025
GB
United Kingdom
Application submitted
№ 19/1235
Application
16 January 2026
Registry
Number
Application
Registration
Terminated
Status
NL
Netherlands
SLA5279
21 May 2025
—
—
Application submitted
GB
United Kingdom
19/1235
16 January 2026
—
—
Application submitted
Plant breeders' rights
The right is granted for a limited term: propagation of the variety requires a license from the rights holder.
Netherlands№ SLA5279
Application submitted
Application filed
21 May 2025
Registered
—
Currently active
indefinite in the register
More 2 records
protections in other jurisdictions are shown on the map above.
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