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Constance

Terminated

Lactuca sativa L. Lettuce · Vegetables · bred by Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)

also searched as: констанке

Variety description

10 August 2026

The variety forms a medium-sized head with a flat, broad base. Leaves are characterized by a bright, shiny red color.

The plant possesses high plasticity and resistance to bolting, which allows for an extended harvest period. The variety shows resistance to powdery mildew, downy mildew (races 1–16, 19, 21, 23), internal necrosis, and lettuce aphid.

Intended for cultivation in open field and protected cultivation, suitable for fresh market sales and processing. Recommended planting density in greenhouses is 13–16 plants per 1 m².

Sources4
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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.

terminated no record

Variety in registries Regions of admission, rights holders, and status of plant breeders' rights

Parties

Breeder
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL) 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 Z.Z. B.V. 220 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 Terminated

    № 271133

    Registration
    10 August 2004
    Terminated
    30 June 2020
  • FR France Terminated

    № 1010933

    Application
    1 August 2002
    Registration
    1 January 2004
    Terminated
    31 December 2017
  • ES Spain Withdrawn

    № 20020418

    Application
    18 November 2002
    Terminated
    20 December 2004

Plant breeders' rights

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

France № 18344
Terminated
  1. Application filed 2 January 2003
  2. Registered 26 January 2006
  3. Entry closed 6 December 2006

More 1 record 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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El Sol

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Lactuca sativa L. · Lettuce

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Lactuca sativa L. · Lettuce

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Lactuca sativa L. · Lettuce

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Lactuca sativa L. · Lettuce

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
5 records

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RAMIRO ARNEDO, S.A.

ES
1 record

Nearby in the species list Conegliano bruna, Conegliano rossa, Conexion, Congareed, Congas, Connect, Conny, Conquest, Conquibus, Consonas, CONSTANTINA, Constanza, Constellation, Constitucion, Content, Contention, Contrai, Conturo, Conversion, Cook

Discussion: Constance

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