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MEF5303

Active

Zea mays L. Maize · Agricultural · bred by William Bourdoncle

also searched as: меф5303

Variety description

10 August 2026

The MEF5303 object is an internal designation for genetic material, rather than a commercial variety or hybrid intended for mass agricultural production.

There are no morphological descriptions, data on disease resistance, or quality indicators characteristic of maize varieties in open publications or registers.

Sources2
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Countries of admission

1 jurisdiction

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Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified.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
William Bourdoncle 19 Developed the variety
Applicant
Monsanto Technology LLC 9 024 Submitted the application to the register
Rights holder
Monsanto Technology LLC 9 024 Holds the rights to the variety

Admission to trade

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

  • UA Ukraine Terminated

    № 09004657

    Application
    1 December 2009
    Registration
    22 November 2010
    Terminated
    12 September 2025

Plant breeders' rights

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

Ukraine № 09004657
Terminated
  1. Application filed 1 December 2009
  2. Registered 12 May 2015
  3. Entry closed 12 September 2025

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

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MEF5298

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MEF5298MS

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MEF6376

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Nearby in the species list MEF3944, MEF4010, MEF4011, MEF4016, MEF4505, MEF4507, MEF4511, MEF5096, MEF5298, MEF5298MS, MEF6376, Megalena, Megalitic, Megalito, Megalo, Megalodon, Meghan, MEK0976, MEK1761, MEK2967

Discussion: MEF5303

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