P 9578
ActiveZea mays L. · Maize
Pioneer Overseas Cor, USA
Zea mays L. Maize · Agricultural · bred by William Bourdoncle
also searched as: меф5303
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.
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.
Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified.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.
The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ 09004657
The right is granted for a limited term: propagation of the variety requires a license from the rights holder.
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
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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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