PR 63 A 90
ActiveHelianthus annuus L. · Sunflower
Soper, John
Helianthus annuus L. Sunflower · Agricultural · bred by PIONEER HI-BRED INTERNATIONAL
also searched as: пр64а71
10 August 2026
The hybrid is characterized by a medium stem height and a strong root system, ensuring lodging resistance. The head is directed downwards or semi-directed downwards; the seeds have good retention, which minimizes shattering. Oil content in seeds is high.
The plant possesses good drought tolerance and tolerance to broomrape (Orobanche cumana), including aggressive races. In scientific research, the hybrid is often used as a reference standard when studying ecological plasticity and mechanisms of resistance to parasitic diseases.
4 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Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified.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.
The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ 217345
№ 008825_A 008825
№ 462/1
№ 0281838
№ 281838
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
The directory replicates the primary source. If an entry differs from the official publication, please specify the discrepancy and provide a link if possible. Corrections are added to the moderation queue.
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Nearby in the species list Pr64a31, PR64A32, PR64A34, PR64A35, Pr64a36, PR64A44, PR64A52, PR64A58, PR64A62, Pr64a64, Pr64a72, PR64A75, PR64A78, Pr64a82, PR64A85, PR64A88, PR64A94, PR64A95, PR64A97, PR64B24