PR 63 A 90
ActiveHelianthus annuus L. · Sunflower
Soper, John
Helianthus annuus L. Sunflower · Agricultural · bred by Parii Anna Fedorivna, Parii Myroslav Fedorovych, Parii IAroslav Fedorovych, Parii Fedir Mykytovych,
also searched as: сониачнии настрии
10 August 2026
The hybrid has a vegetation period of 98–103 days, with the period from emergence to flowering being about 55 days. Plants reach a height of 170–180 cm, the head is convex, semi-pendant, with a diameter of 22–24 cm. Oil content in seeds is 50–52%, husk content is 20–21%.
The crop possesses high resistance to rust, lodging, and shattering, as well as moderate or high resistance to Phoma, Phomopsis, downy mildew, gray mold, and white rot. Resistant to broomrape races A, B, C, D, E. Distinguished by rapid development in the initial stages of vegetation.
Recommended plant density before harvest in the forest-steppe zone is 60–65 thousand plants per hectare, and in the steppe zone — 55–60 thousand plants per hectare. Under conditions of insufficient moisture, the seeding rate is recommended to be reduced to 45–50 thousand plants per hectare.
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.
№ 04017011
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