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SY Theos

Active

Helianthus annuus L. Sunflower · Agricultural · bred by Syngenta Crop Protection,CH

also searched as: си теос

Variety description

10 August 2026

The vegetation period of the hybrid is 110–120 days. Plant height varies from 150 to 190 cm depending on moisture availability conditions. Oil content in seeds reaches 51–53%, and the plant is characterized by lodging resistance.

The hybrid exhibits tolerance to downy mildew, phoma, phomopsis, and white rot. It is suitable for cultivation in various climatic zones; it is recommended to maintain a sowing density of 40 to 55 thousand plants per hectare depending on the moisture level.

Sources8
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Countries of admission

5 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.

QM QZ

active no record

Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified.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.

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

Parties

Breeder
Syngenta Crop Protection, CH 72 Developed the variety
Applicant
Syngenta Slovakia s.r.o.,SK 2 Submitted the application to the register
Rights holder
Syngenta Crop Protection AG 10 404 Holds the rights to the variety
Maintainer
Syngenta France SAS, F 25 Responsible for variety maintenance

Admission to trade

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

  • QZ European Union Active

    № 292413

  • UA Ukraine Active

    № 20039107

    Application
    16 December 2020
    Registration
    31 December 2022
  • SK Slovak Republic Active

    № 221R216

    Application
    10 February 2021
    Registration
    23 March 2023
  • IT Italy Active

    № 023092_A 023092

    Application
    13 January 2022
    Registration
    19 January 2024
  • RS Serbia Active

    № 320-04-01704/2023-11

    Application
    31 January 2023
    Registration
    10 February 2025

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

Found an error in the record?

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 SY Slovan, SY Sonora, SY Spartacus, SY Stabilo, SY Starter, SY Strato CLP, SY Subtil, SY Sultan, SY Tabasco, SY Terano AR, SY Valeo, SY Vertuo, SY Vigoria, SY Virtuoso, SY Vivacio, SY Vivaldi, SY Voltima, SY Vortex AR, SY Vostok AR, Sydney

Discussion: SY Theos

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