P 9578
ActiveZea mays L. · Maize
Pioneer Overseas Cor, USA
10 August 2026
The PHT 77 line is breeding material. It is distinguished by later development stages compared to the PHJ89 line and requires a higher number of heat units for silking.
Morphologically, the plant is characterized by red cobs and a dark green color of the fresh husk. The leaves have a small angle of attachment to the stem, while longitudinal wrinkles and marginal undulations on them are absent or weakly expressed.
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.
Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified.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.
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 right is granted for a limited term: propagation of the variety requires a license from the rights holder.
More 1 record protections in other jurisdictions are shown on the map above.
Records are sourced from official registry publications. Data sources and legal status
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Nearby in the species list Phrba, Phrca, Phrce, Phrdw, PHRE 1, PHRF-5, Phrho, Phrjb, PHRO3, PHT 57, Pht11, Pht11*Phr61, Pht6v1, PHTA 8, PHTD 5, Phtfe, PHTM 9, Phtm2, PHTW 6, Phv13