PR 63 A 90
ActiveHelianthus annuus L. · Sunflower
Soper, John
Helianthus annuus L. Sunflower · Agricultural · bred by Ragt 2n, F
also searched as: ргт воллкано клп
10 August 2026
The hybrid belongs to the high-oleic oilseed crop type. The cultivation technology involves the use of the Clearfield Plus system, which ensures resistance to imazamox-based herbicides. The maturity group ranges from medium-early to medium-late depending on the region; the growing season is from 97 to 120 days.
The plant reaches a height of about 160 cm, there is no branching, leaf color is green, and flowers are yellow. Seed oil content reaches 52%, oleic acid content is up to 90%, and the thousand kernel weight is about 58.1 g. The average yield in field trials was recorded at 23.7 c/ha.
The hybrid is characterized by excellent resistance to lodging and high tolerance to stem infections such as Sclerotinia and Phoma. Tolerance to downy mildew and moderate resistance to broomrape and head rot are also noted.
4 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.
Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified. This section will be available upon verification.
The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ 217597
№ 017800_A 017800
№ 16039054
№ 320-04-1943/2019-11
The right is granted for a limited term: propagation of the variety requires a license from the rights holder.
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Nearby in the species list RGT Scandolla, RGT Sillviano, RGT Sittingbull, RGT Stanlley, RGT Tallisman, RGT Tivolli CLP, RGT Vallencia CLP, RGT Vallkyrie, RGT Villa, RGT Vivallto, RGT Volluto, RGT Vuellta, RGT Williams, RGT Willkinson, RGT Wollf, RH-5077, RH 528, RH 552, RH 588, RH-NK