PR 63 A 90
ActiveHelianthus annuus L. · Sunflower
Soper, John
10 August 2026
The hybrid is characterized by a plant height of 170 to 180 cm. The plant head is semi-convex in shape, reaches 18–20 cm in diameter, and is half-inclined.
Seed oil content is 45–48% with a thousand kernel weight of 60–65 g. The yield potential of the hybrid reaches 4.2 t/ha.
The plant is resistant to major sunflower diseases and lodging. The recommended plant density at the time of harvest is 35–40 thousand plants per hectare under insufficient moisture and 50–55 thousand plants per hectare under sufficient moisture.
2 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.
№ 17039080
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
Helianthus annuus L. · Sunflower
Soper, John
Helianthus annuus L. · Sunflower
Revol Benoit
Helianthus annuus L. · Sunflower
Oliv"ie Ladsus
Helianthus annuus L. · Sunflower
MAS SEEDS
Helianthus annuus L. · Sunflower
Kashtanov Oleksandr Serhiiovych
Helianthus annuus L. · Sunflower
Kopylov Serhii Ihorovych
Nearby in the species list Porthos CLP, PORTIL, PORTIL XF4221, PORTORIQUE CLP, Portos, Poseidon, Postolianskyi, Postup, Potter CLP, Potuzhnyi, PP 01, PP 02, PP 03, PP 04, PP 05, PR 56, PR 62 A 91, PR 63 A 86, PR 63 A 90, PR 63 G 40