P 9578
ActiveZea mays L. · Maize
Pioneer Overseas Cor, USA
Zea mays L. Maize · Agricultural · bred by Saaten Union Romania, RO
also searched as: сум 305
10 August 2026
The hybrid belongs to the FAO 370 maturity group with a growing season of 120 to 125 days. The plant features vigorous development and a well-developed leaf canopy, characterized by medium height and medium-high ear placement.
The variety has high resistance to stalk breakage and lodging. It exhibits tolerance to drought, heat, and low spring temperatures, as well as good resistance to common smut and stalk Fusarium. The hybrid is characterized by a pronounced “stay green” effect and a high rate of grain moisture loss.
Intended for intensive cultivation technologies in regions with a sum of active temperatures from 1200°C. The recommended planting density is 55,000–65,000 seeds per hectare for dryland farming and 65,000–70,000 seeds per hectare under irrigation.
3 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Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified.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.
breeder code SUM305
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.
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The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ 014274_A 014274
№ 13009216
№ 320-04-1748/2014-11
The right is granted for a limited term: propagation of the variety requires a license from the rights holder.
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Nearby in the species list SUM 0243, SUM 0246, SUM 0307, SUM 0307/ZUM 0307, SUM 1052, SUM 1088, SUM 1093, SUM 1467, SUM 1802, SUM 1884, SUM 330, SUM 405, SUM 420, SUM 490, SUM1187, SUM1783, SUM1786, SUM402, Sumania, Sumaris