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Roset

Protection expired

Lactuca sativa L. Lettuce · Vegetables

also searched as: росет

Variety description

10 August 2026

Roset is a mid-early leaf lettuce of the Batavia type, which is also classified as the Reddish Fire type. The plant forms a large rosette of firm, highly curly light-red leaves. The average weight of one rosette is about 400 grams.

The variety possesses resistance to bolting. It is suitable for harvesting both as individual young leaves at the baby leaf stage and as whole formed rosettes. The produce is intended for fresh consumption and is often used in salad mixes.

The variety is intended for all-season cultivation, with spring and autumn being the main periods for cultivation in the open field.

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.

terminated no record

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

Parties

Applicant
SEMO a.s. (CZ) 527 Submitted the application to the register
Maintainer
SEMO a.s. (CZ) 527 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

    № 273928

    Registration
    29 January 2002
    Terminated
    30 June 2025
  • NL Netherlands Withdrawn

    № 70

    Application
    1 January 1972
    Terminated
    8 December 1976
  • CZ Czechia Protection expired

    № 5372

    Application
    18 November 1999
    Registration
    29 January 2002
    Terminated
    29 January 2022

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

Rosental

Terminated

Lactuca sativa L. · Lettuce

NL
2 records

Roseole

Withdrawn

Lactuca sativa L. · Lettuce

Syngenta Seeds B.V.

NL
2 records

Rosetta

Terminated

Lactuca sativa L. · Lettuce

Nunza BV (NL)

FR NL
4 records

Nearby in the species list Rosario, Rosaura, Roscoe, Rosela, Roselee, Roselita, Rosemarry, Rosemoor, Rosental, Roseole, Rosetta, Rosfol, Rosgem, Rosha, Rosinal, Rosinski, Rosita, Rosnella, Rosny, Rosplus

Discussion: Roset

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