PR 63 A 90
ActiveHelianthus annuus L. · Sunflower
Soper, John
Helianthus annuus L. Sunflower · Agricultural · bred by RUP «POLESSKIJ INSTITUT RASTENIEVODSTVA» LUGANSKIJ INSTITUT SELEKCZII I TEXNOLOGIJ
also searched as: степок
10 August 2026
The variety is a three-way early-maturing hybrid suitable for cultivation in regions with a risk of precipitation during the harvest period. Plant height is 130–140 cm. Harvesting takes place from the end of July to August.
The plant features a semi-pendulous head position, which, combined with rapid seed moisture loss, reduces the risk of white and gray rot, as moisture does not accumulate on the back of the head. The variety is intended for use as an oilseed crop.
As of 2024, it is noted that the hybrid was lost after 2014 due to the loss of parental lines, and work is currently underway to restore it.
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.
Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified.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.
№ 04017071
№ 2006257
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 Starliner, Starsol, Starsun 20, Starsun 31, Status, STD 9 A, Stelantis SU, Stelaris CLP, Stella RM, Stelvio, Stepovyi, STH-12003, STH 12004, STH-12005, STH-13004, STH-13006, STH-14002, STH-14004, STH-16002, STH-16003