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Extemp

Active

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

also searched as: екстемп

Variety description

10 August 2026

The variety forms a large, spherical, semi-upright rosette 15–20 cm in height and up to 20 cm in diameter. The leaves are intensely green, glossy, highly dissected, with a wavy edge, and possess a tender, crisp texture. The rosette weight is 120–200 g, and the growing period is 40–42 days.

The plant is characterized by high heat tolerance and resistance to bolting and leaf necrosis. It possesses high resistance to downy mildew (Bl:16-32, 34, 36EU) and currant-lettuce aphid (Nr:0), as well as intermediate resistance to lettuce mosaic virus (LMV:1).

The leaves separate easily during harvesting, which is convenient for mechanized processing and the creation of salad mixes. The variety retains freshness during packaging and is intended for cultivation in the open field, film greenhouses, and using nutrient film technique (NFT) hydroponics.

Sources8
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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.

QZ

active no record

Variety registered as early as 2 jurisdictions, data for which we do not publish: their registry licenses have not yet been verified.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
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.

  • QZ European Union Active

    № 271600

    Registration
    30 March 2017
  • NL Netherlands Active

    № SLA3510

    Application
    20 February 2015
    Registration
    30 March 2017
  • RU Russian Federation Active

    № 70290

    Application
    3 November 2016
    Registration
    23 March 2018
  • GB United Kingdom Active

    № 19/17409

    Application
    22 January 2019
    Registration
    28 February 2019

Plant breeders' rights

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

Netherlands № SLA3510
Active
  1. Application filed 20 February 2015
  2. Registered 30 March 2017
  3. Currently active indefinite in the register

More 3 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

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Nearby in the species list Expedition, Experience, Expertise, Explore, Expo, Exponent, Expresse, Expression, Exquise, Extase, Extender, Extensa, Extol, Extranet, Extratos, Extremo, Exupery, Exvano, Exwatch, Exwink

Discussion: Extemp

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