P 9578
ActiveZea mays L. · Maize
Pioneer Overseas Cor, USA
Zea mays L. Maize · Agricultural · bred by PIONEER HI-BRED INTERNATIONAL
also searched as: ф1во
10 August 2026
The line is a breeding material obtained through repeated self-pollination and selection to fix specific traits. It is not intended for direct use in commercial sowing and is used primarily to produce hybrids, such as the PH55C/PH1WO combination.
Hybrids created using this line are characterized by increased resistance to root lodging and stalk breakage. Also noted are the prolonged retention of green leaf color at the end of the growing season, reduced grain moisture at harvest, and high grain test weight.
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.
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 PH1V92, Ph1v93, Ph1vkk, Ph1vtj, PH1VVD, Ph1vy6, Ph1w0n, PH1w2, PH1W4R, PH1W5N, Ph2047, Ph20a, PH20DD, Ph20dt, Ph21b, PH21T, PH224, Ph23yw, Ph24d, Ph24e