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Rex

Active

Lactuca sativa L. Lettuce · Vegetables

also searched as: рекс

Variety description

10 August 2026

The Rex RZ variety, known under number 42-06, is a representative of the butterhead lettuce type. The plant forms medium or large-sized heads.

The variety is intended for cultivation in protected ground during the summer period, and is also suitable for growing in the winter and spring periods under tropical climate conditions. It possesses high resistance to tip burn and a slowed bolting process, which allows for an extended harvest period.

Sources4
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Countries of admission

4 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.

QZ

active terminated no record

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

Parties

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.

  • HR Croatia Terminated

    № 1004956

    Terminated
    27 November 2007
  • QZ European Union Active

    № 273816

  • NL Netherlands Active

    № SLA903/6415

    Application
    3 October 1989
  • CZ Czechia Active

    № 1916

    Application
    22 December 1993
    Registration
    19 April 1996
  • CZ Czechia Active

    № 3063

    Application
    3 January 1996
    Registration
    10 March 1998

Plant breeders' rights

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

Netherlands № SLA903
Protection expired
  1. Application filed 5 October 1990
  2. Registered 13 April 1993
  3. Entry closed 13 April 2018

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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Nearby in the species list Resonia, Respons, Restore, Retorio, Reunion, Revanie, Revenge, Reverte, Revolution, Revue, Rexado, Rexina, Rhénania, Rheinia, Rhénania, Rhodenas, Riana, Riant, Rianxo, RIAZOR

Discussion: Rex

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