PR 63 A 90
ActiveHelianthus annuus L. · Sunflower
Soper, John
Helianthus annuus L. Sunflower · Agricultural · bred by Riabchun Viktor Kuzmych, Kryvoruchko Tetiana Mykolaivna, Leonova Nina Mykolaivna, Syvenko Valentyna Ivanivna, Kolomatska Valeriia Pavlivna, Makliak Kateryna Mykolaivna, Kyrychenko Viktor Vasylovych,
also searched as: сх 51 а
10 August 2026
The breeding line Skh 51 A is used in specialized sunflower breeding programs. This material serves as a parental form for developing hybrid combinations.
The primary economic trait of the line is a consistently high thousand kernel weight, which makes it a sought-after source of large seed size in breeding work, including work focused on cold tolerance.
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.
№ 12017196
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
The directory replicates the primary source. If an entry differs from the official publication, please specify the discrepancy and provide a link if possible. Corrections are added to the moderation queue.
This is a directory, not an official registry: data is based on public disclosures and may have changed. More about sources
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Nearby in the species list SKh 2314, SKh 2321, SKh 2365, SKh 2563, Skh 4021 A, SKh 4211, SKh 4343, SKh 4478, Skh 503 A, SKh 5055, SKh 5220, SKh 5326, Skh 588 A, Skh 66 A, SKh 6763, SKh 7153, Skh 772 A, SKh 808 A, Skh 808 A kh Kh 1002 B, Skh 809 A