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Tetra

Protection expired

Trifolium hybridum L. Alsike clover · Agricultural · bred by W WEIBULL

also searched as: тетра

Variety description

10 August 2026

The variety is tetraploid. It is characterized by larger leaves and flowers compared to diploid forms. The plant possesses good establishment and growth vigor comparable to the 'Aurora' variety, however, its flowering and maturity occur 3–5 days later.

The crop is used for the establishment of sown meadows and pastures. Tetraploid forms are distinguished by increased vegetative mass, which ensures high productivity in forage production. Although alsike clover is a perennial plant, in agricultural practice it is often used as a biennial.

Sources2
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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Variety registered as early as 2 jurisdictions, data for which we do not publish: their registry licenses have not yet been verified.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
W WEIBULL 141 Developed the variety
Applicant
Svalöf Weibull AB Submitted the application to the register
Maintainer
Svalöf Weibull AB Responsible for variety maintenance

Admission to trade

The variety is listed in the national registry — its seeds are authorized for sale in this country.

  • GB United Kingdom Terminated

    № 50/3

    Terminated
    30 November 1998
  • QZ European Union Terminated

    № 208900

  • SE Sweden Terminated

    № GAR 5

    Application
    1 April 1952
    Registration
    1 July 1952
    Terminated
    9 January 1998
  • NO Norway Terminated

    № A033

    Application
    1 January 1975
    Registration
    1 January 1975
    Terminated
    14 August 2001
  • EE Estonia Protection expired

    № 7

    Application
    4 April 1989
    Registration
    1 January 1981
    Terminated
    18 May 2000

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: Alsike clover

All 54 varieties of species

Lomiai

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Trifolium hybridum L. · Alsike clover

ROSEFIELD FARM

AT DE FR LT
10 records

Dawn

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Trifolium hybridum L. · Alsike clover

PENDING

FR HR SI
7 records

Ermo

Active

Trifolium hybridum L. · Alsike clover

DLF Seeds A/S

CZ EE PL
5 records

Trifolium hybridum L. · Alsike clover

Instytut silskoho hospodarstva Karpatskoho rehionu Natsionalnoi akademii ahrarnykh nauk Ukrainy

UA
2 records

Stena

Terminated

Trifolium hybridum L. · Alsike clover

Hagberg, Arne

SE
2 records

Trifolium hybridum L. · Alsike clover

CZ SK
4 records

Nearby in the species list Poliai, Pooderský, Priekulu tetraploids, Prydnistrovska, Sara-Kaja potatis, Savola, Stebnychanka, Stena, Táborský, Talent, Tibor, Tigea, Tiphon, Trend, Viliia, Zorza

Discussion: Tetra

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