PR 63 A 90
ActiveHelianthus annuus L. · Sunflower
Soper, John
Helianthus annuus L. Sunflower · Agricultural · bred by PIONEER OVERSEAS CORPORATION US
also searched as: пр 64 г 20
10 August 2026
The hybrid is a simple linoleic type of sunflower. The plants have a strong stem, a powerful root system, and a semi-inclined convex head, which promotes better seed retention. Depending on growing conditions, plant height varies from medium to high.
The variety possesses lodging resistance and exhibits tolerance to a complex of diseases, including new races of downy mildew. The thousand kernel weight can reach 65 grams. The hybrid is characterized by self-pollination capacity and adaptability to various climatic conditions.
5 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.
breeder code xf4637
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.
№ 217362
№ 011638_A 011638
№ 1021769
№ 21035
№ 309682
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
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Pioneer Overseas Corporation US (USA)
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Nearby in the species list PR 63 A 86, PR 63 A 90, PR 63 G 40, PR 63 G 50, PR 63 K 83, PR 6338, PR 63A51, PR 64 A 15, PR 64 A 63, PR 64 A 89, PR 64 H45, PR 64A83, PR 64G43, PR 64H51, PR 64H61, PR 64K20, PR 98-27RN, PR ST 28 B, PR351DMROR, PR353DMROR