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Birko

Protection expired

Zea mays L. subsp. mays (Maize Group) Maize · Agricultural · bred by RAGT 2n

also searched as: бирко

Variety description

10 August 2026

The hybrid is included in descriptive lists of maize varieties. According to data from German variety lists, the plant is classified as early-maturing.

Detailed morphological and agronomic characteristics of the variety are absent in open publications. Given the period of the hybrid's mention in official lists (mid-2000s – 2010s), the variety may not be part of current commercial product lines.

Sources5
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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Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified.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
RAGT 2n 2 621 Developed the variety
Applicant
RAGT Semences Polska sp. z o.o. Submitted the application to the register
Maintainer
RAGT 2n (FR) 2 157 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

    № 234688

  • CZ Czechia Protection expired

    № 4533

    Application
    19 January 1998
    Registration
    9 April 2001
    Terminated
    9 April 2011
  • PL Poland Terminated

    № R R3391

    Application
    31 December 1998
    Registration
    26 February 2001
    Terminated
    27 April 2011
  • CH Switzerland Terminated

    № CV 99-01246

    Application
    16 February 1999
    Registration
    15 June 2002
    Terminated
    30 November 2011

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

Found an error in the record?

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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

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Pioneer Hi-Bred International Inc (US)

FR
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Nearby in the species list Bijou, Bikini, Bilbao, Bilda, Bilizi, Biotop, Birch, BIRD, Birdi CS, Birdy, Birma, BIS 34, Bisca, Bise, BISERAC KOŠTARAČKI, Biskup, Bison, Bixxas, Bixxio, Bixxou

Discussion: Birko

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