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Challenge

Active

Lactuca sativa L. Lettuce · Vegetables · bred by Zaadunie B.V.

also searched as: чалленге

Variety description

10 August 2026

Challenge variety belongs to the Iceberg type and forms dense oblate heads weighing 400 grams or more. The plant leaves are bright green, blistered, with a wavy edge; the rosette reaches 30–40 centimeters in diameter. The leaves have a juicy and crispy texture.

The plant is resistant to bolting, high temperatures, lettuce mosaic virus, and downy mildew. The variety is intended for cultivation in the open field during the summer period and is suitable for staggered production. Sources mention it as an F1 hybrid with maturity terms ranging from 41 to 70 days.

Sources7
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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Variety registered as early as 3 jurisdictions, data for which we do not publish: their registry licenses have not yet been verified.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
Zaadunie B.V. Developed the variety
Applicant
Zaadunie B.V. Submitted the application to the register
Rights holder
Syngenta Crop Protection AG 10 404 Holds the rights to the variety
Maintainer
SYNGENTA UK Ltd 731 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

    № 270987

  • NL Netherlands Active

    № SLA959/7593

    Application
    6 November 1991
  • CZ Czechia Protection expired

    № 6645

    Application
    4 January 2002
    Registration
    25 March 2004
    Terminated
    25 March 2014
  • RU Russian Federation Active

    № 43684

    Application
    21 November 2005
    Registration
    22 January 2007
  • GB United Kingdom Active

    № 91/10461

    Application
    3 August 2018
    Registration
    30 September 2018
  • GB United Kingdom Active

    № 19/11320

    Application
    6 September 2018
    Registration
    31 October 2018

Plant breeders' rights

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

Netherlands № SLA959
Terminated
  1. Application filed 7 November 1991
  2. Registered 10 February 1994
  3. Entry closed 20 May 1997

More 4 records protections in other jurisdictions are shown on the map above.

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

Found an error in the record?

The directory replicates the primary source. If an entry differs from the official publication, please specify the discrepancy and provide a link if possible. Corrections are added to the moderation queue.

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

All 8 226 varieties of species

Lactuca sativa L. · Lettuce

SVS Holland B.V.

DK ES FR IT
14 records

El Sol

Active

Lactuca sativa L. · Lettuce

Nunhems, NL

NL
12 records

Lactuca sativa L. · Lettuce

SYNGENTA SEEDS B.V.

ES
8 records

Chagall

Protection expired

Lactuca sativa L. · Lettuce

NL
3 records

Chakra

Withdrawn

Lactuca sativa L. · Lettuce

Syngenta Crop Protection AG

NL
3 records

Chalmers

Active

Lactuca sativa L. · Lettuce

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
7 records

Nearby in the species list Cetero, Cevedale, Ceylina, Cézaros, Cha Cha Cha, Chabi, Chaca, Chaconera, Chagall, Chakra, Chalmers, Chambel, Chambery, Chamonix, Chamotte, Champion, Champollion, Chancellor, Chandler, Chandor

Discussion: Challenge

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