PR 63 A 90
ActiveHelianthus annuus L. · Sunflower
Soper, John
Helianthus annuus L. Sunflower · Agricultural · bred by E.SCHWARTZ
also searched as: 64а52
10 August 2026
The hybrid represents an oilseed sunflower line. In agronomic studies of the early 2000s, it demonstrated high seed yield and oil content metrics under various environmental conditions.
This hybrid has been repeatedly used as a model specimen in experimental work, including studies on the effect of sowing dates on crop productivity and bird damage.
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 variety is listed in the national registry — its seeds are authorized for sale in this country.
№ 19960235
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.
This is a directory, not an official registry: data is based on public disclosures and may have changed. More about sources
Same species
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MIHSAN Ltd - Sofia (BG)
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NORTHRUP KING
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INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Nearby in the species list 6115 A, 6127 A, 61F32R, 63 G 13, 6388 A, 639 R, 63G13is, 64 A, 64 B, 64 PROV., 65-01, 65342, 654R, 656A, 659R, 669 R, 67, 67K23R, 67X08R, 68Y10R