PR 63 A 90
ActiveHelianthus annuus L. · Sunflower
Soper, John
Helianthus annuus L. Sunflower · Agricultural · bred by Kotai Csaba, Dr. Janos Matuz,
also searched as: су кларисса
10 August 2026
The vegetation period of the hybrid is from 100 to 115 days. Plant height varies within the range of 140–170 cm. The hybrid is adapted for use with the Clearfield protection system, which provides resistance to specific herbicides.
The plant possesses high resistance to Phomopsis, white rot, Sclerotinia, rust, and downy mildew. The yield potential reaches 55 c/ha, seed oil content is 50–55%.
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.
№ 217690
№ A15222
№ 08017084
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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Nearby in the species list STR584, Straik, Strato, Stratus, Strial, Stripy I, Stromboli, Struma, Styl, SU AB 4, SU Inessa, SU RF 1 SP, SU RF 1ST, SU Rf 252, SU Rf 49, SU -RF- 55, SU RO 16-1 SU, SU RO 16-2 ORO, SU RO 16-2 SU, SU RO 17-2 SU