P 9578
ActiveZea mays L. · Maize
Pioneer Overseas Cor, USA
10 August 2026
The hybrid belongs to the mid-late maturity group with an FAO index of 390–410. The plant is characterized by high stature. The ear forms 16–18 rows of kernels with 32–36 grains per row; the thousand kernel weight is 350–370 g.
The variety possesses a pronounced stay-green effect, which ensures high silage quality. The product is distinguished by high starch content, good fiber digestibility, and high energy value.
The hybrid exhibits good resistance to lodging and drought. It possesses tolerance to the main crop diseases, including Helminthosporium leaf blight and Fusarium of plants and ears.
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.
The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ 024496_A 024496
№ 2025009090
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 MAS 37H, MAS 38 D, MAS 387L, MAS 39 T, MAS 39L, MAS 39WX, MAS 40 F, MAS 40017, MAS 400D, MAS 406T, MAS 40CR, MAS 41758, MAS 41B, MAS 41WX, MAS 431B, MAS 43CR, MAS 43P, MAS 440D, MAS 443D, MAS 44A