P 9578
ActiveZea mays L. · Maize
Pioneer Overseas Cor, USA
Zea mays L. Maize · Agricultural · bred by Chepolkina Tetiana Fedorivna
also searched as: ор 28а
10 August 2026
The hybrid belongs to the mid-early maturity group with an FAO rating of 260–270. The plant has high growth and a semi-erect leaf type. The grain type varies from flint-dent to dent.
The crop demonstrates high resistance to lodging, increased resistance to diseases, and good drought tolerance. The primary purpose of the hybrid is grain and silage production.
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.
breeder code OR-28A
A single variety may be registered in different countries under different names. All records are consolidated into one profile based on the breeder's code—an internal number that is identical for the variety across all registries.
The primary name shown is the one under which the variety is registered in the largest number of jurisdictions. Search finds the variety by any of its names.
The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ 21909012
The right is granted for a limited term: propagation of the variety requires a license from the rights holder.
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
Same species
Zea mays L. · Maize
Pioneer Overseas Cor, USA
Zea mays L. · Maize
Pioneer Overseas Corporation, USA
Zea mays L. · Maize
PIONEER| Pioneer Hi-Bred Services GmbH
Zea mays L. · Maize
Merien, Patrick
Zea mays L. · Maize
Chepolkina Tetiana Fedorivna
Zea mays L. · Maize
Chepolkina Tetiana Fedorivna
Nearby in the species list Optiks, Optima, Optimer, Optimis, Optymum, Opus, Opytop, Oq 414, OQ 603, OR-26A, OR-32A, Oracio, Oracio (R), Oracle, Oran, Orange, Orangis, Oranje, Orava, Orazio VSM