PR 63 A 90
ActiveHelianthus annuus L. · Sunflower
Soper, John
Helianthus annuus L. Sunflower · Agricultural · bred by NORTHRUP KING Co (US)
also searched as: сф 549
10 August 2026
The SF 549 F1 hybrid is classified as early-maturing. Official documents confirm the registration of this hybrid, however, detailed information on its agronomic characteristics, including plant height, lodging resistance, and disease resistance, is absent.
Publicly available publications lack information regarding the connection of this hybrid to the Northrup King Co. company. When searching for data by the code SF 549, it should be noted that similar designations may be encountered in the context of other agricultural crops, such as kenaf.
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.
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
Same species
Helianthus annuus L. · Sunflower
Soper, John
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Revol Benoit
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Oliv"ie Ladsus
Helianthus annuus L. · Sunflower
Steve Thompson
Helianthus annuus L. · Sunflower
NORTHRUP KING Co (US)
Helianthus annuus L. · Sunflower
NOVARTIS SEEDS
Nearby in the species list SF 038, SF 0618 JOA, SF 1625, SF 1625 75 GG, SF 187, SF 2615 MA, SF 2615 MIA, SF 2615 MJA, SF 270, SF 548, Sf 558, SF 559, SF 562, SF 563, Sf 564, SF 6803IMO/A, SF 9074 MA, SF Acteon, SF Ankena, SF Naxos