PR 63 A 90
ActiveHelianthus annuus L. · Sunflower
Soper, John
Helianthus annuus L. Sunflower · Agricultural · bred by Seedtec International Inc (US)
also searched as: стр456
10 August 2026
The hybrid is early-maturing with a vegetation period of 105–110 days. The plant reaches a height of 160–170 cm. It is intended for use with the Express technology and is resistant to tribenuron-methyl based herbicides.
The variety possesses high resistance to phomopsis, phoma leaf spot, rust, downy mildew, white rot, and gray rot. It is resistant to seven races of broomrape (A-G). The lodging resistance score is 8 out of 10. The oil content in the seeds reaches 50–52%.
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 right is granted for a limited term: propagation of the variety requires a license from the rights holder.
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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
Seedtec International Inc (US)
Helianthus annuus L. · Sunflower
Seedtec International Inc (US)
Helianthus annuus L. · Sunflower
Seedtec International Inc (US)
Nearby in the species list STR 540, STR 550, STR 552, STR 563, STR205, STR209, STR226, STR239, STR255, STR454, STR513, STR517, STR551, STR584, Straik, Strato, Stratus, Strial, Stripy I, Stromboli