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Sirena (MS)

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Helianthus annuus L. Sunflower · Agricultural · bred by David Morgford

also searched as: сирена мс

Variety description

10 August 2026

The hybrid is characterized by a convex head shape, which fully droops in the ripening phase. The oil content in the seeds varies from 45–46% to 52%.

The plant possesses high plasticity, stress tolerance, and the ability to withstand drought conditions. The recommended plant density at the time of harvest is from 50–55 to 62 thousand plants per hectare, while the hybrid reacts negatively to crop thickening.

Sources6
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Countries of admission

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.

active no record

Variety in registries Regions of admission, rights holders, and status of plant breeders' rights

Parties

Breeder
David Morgford 1 Developed the variety
Applicant
May Agro Tohumculuk Sanayi ve Ticaret A.S. 72 Submitted the application to the register
Rights holder
May Agro Tohumculuk Sanayi ve Ticaret A.S. 72 Holds the rights to the variety

Admission to trade

The variety is listed in the national registry — its seeds are authorized for sale in this country.

  • UA Ukraine Active

    № 04017022

    Application
    11 February 2004

Plant breeders' rights

The right is granted for a limited term: propagation of the variety requires a license from the rights holder.

Ukraine № 04017022
Protection expired
  1. Application filed 11 February 2004
  2. Registered
  3. Currently active indefinite in the register

Records are sourced from official registry publications. Data sources and legal status

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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 SILF2523A, Sillouet, Silva, Silvia, Simcon, Simirasol, Simitli CLP, Simson, Siou, Sirena, Sirio, Sirmione, Sirocco, Siuzhet, Siver, /SK-843/, SKA1067, Skarb, SKB 1094, SKB 1124

Discussion: Sirena (MS)

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