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Casonas

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Lactuca sativa L. Lettuce · Vegetables · bred by Rijk Zwaan Zaadteelt en Zaadhandel B.V.

also searched as: касонас

Variety description

10 August 2026

The plant possesses a closed base of the head and high resistance to downy mildew (races Bl:29-41EU), Fusarium wilt (race Fol:4), and lettuce aphid (race Nr:0). The variety shows resistance to physiological disorders such as internal necrosis and rib browning.

The variety is intended for sale in the fresh produce market. Breeding number of the sample 45-IC1268 RZ.

Sources3
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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.

active no record

Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified.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.

  • NL Netherlands Active

    № SLA5184

    Application
    13 November 2024
    Registration
    16 March 2026
  • GB United Kingdom Application submitted

    № 19/1201

    Application
    26 November 2025

Plant breeders' rights

The right is granted for a limited term: propagation of the variety requires a license from the rights holder.

Netherlands № SLA5184
Active
  1. Application filed 13 November 2024
  2. Registered 16 March 2026
  3. Currently active indefinite in the register

More 2 records protections in other jurisdictions are shown on the map above.

Records are sourced from official registry publications. Data sources and legal status

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This is a directory, not an official registry: data is based on public disclosures and may have changed. More about sources

Same species

Other varieties: Lettuce

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Lactuca sativa L. · Lettuce

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14 records

El Sol

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Nunhems, NL

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12 records

Lactuca sativa L. · Lettuce

SYNGENTA SEEDS B.V.

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8 records

Casino

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Syngenta Crop Protection AG

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2 records

Casius

Terminated

Lactuca sativa L. · Lettuce

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
3 records

Casparo

Terminated

Lactuca sativa L. · Lettuce

NL
2 records

Nearby in the species list Casarca, Casares, Casaverde, Cascabel, Cascade, Casemiro, Casey, Casimir, Casino, Casius, Casparo, Caspian, Cassandra, Cassenas, Cassidy, Cassini, Cassiopea, Cassita, Castalia, Castellana

Discussion: Casonas

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