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Sesam

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

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Variety description

10 August 2026

The variety was used as a recurrent parent in the breeding of other lettuce lines possessing resistance to various factors. In 1995 scientific research, the variety was mentioned in the context of physiological experiments with red-leaved forms.

The plant belongs to a type of lettuce that does not form a head. Under certain lighting conditions, the leaves of the variety are characterized by a high level of chlorophyll content. In modern commercial catalogs, the variety is not presented as a current product for mass cultivation.

Sources5
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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.

terminated 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Variety registered as early as 2 jurisdictions, data for which we do not publish: their registry licenses have not yet been verified.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 BV (NL) Developed the variety
Applicant
TOTAL AGRO S.A. 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 Terminated

    № 274176

  • NL Netherlands Terminated

    № SLA864/6334

    Application
    7 August 1989
    Terminated
    23 May 2013
  • FR France Terminated

    № 0063144

    Application
    1 December 1989
    Registration
    1 January 1993
    Terminated
    18 July 2001
  • NL Netherlands Withdrawn

    № 6743

    Application
    15 March 1990
    Terminated
    20 November 1991
  • SK Slovak Republic Protection expired

    № 2592

    Application
    3 December 1991
    Registration
    23 March 1994
    Terminated
    31 December 2004
  • CZ Czechia Terminated

    № 815

    Application
    6 January 1992
    Registration
    12 May 1994
    Terminated
    18 March 2005
  • AR Argentina Active

    № 005546

    Application
    2 December 1997
    Registration
    17 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 № SLA864
Terminated
  1. Application filed 10 January 1990
  2. Registered 5 November 1992
  3. Entry closed 7 February 1997

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

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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El Sol

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Nunhems, NL

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Servatio

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Enza Zaden Beheer B.V.

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4 records

Nearby in the species list Sergeant, Sergios, Sernio, Serpico, Serrana, Serrina, Sertaneja, Serval, Servatio, Servis, Sesmaria, Session, Sesty, Set, SETTER, Seurat, Sevenole, Severa, Séverine, Severo

Discussion: Sesam

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