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RW 666

Active

Helianthus annuus L. Sunflower · Agricultural · bred by NOVARTIS SEEDS

also searched as: рв 666

Variety description

10 August 2026

RW 666 is genetic material used by breeders to study trait variability, inheritance of quantitative characteristics, and evaluation of drought tolerance. The line is used in crossing experiments to create hybrids.

Open sources lack descriptions of morphological traits or detailed agronomic characteristics, such as plant height, maturity group, or disease resistance, as the object is not intended for commercial sowing.

Sources4
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Countries of admission

6 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

active terminated no record

Also known as

breeder code RW666

A single variety may be registered in different countries under different names. All records are consolidated into one profile based on the breeder's code—an internal number that is identical for the variety across all registries.

  • RW 666 primary BG, FR, HU, QZ
  • RW666 ES, QM, QZ, UA

The primary name shown is the one under which the variety is registered in the largest number of jurisdictions. Search finds the variety by any of its names.

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

Parties

Breeder
NOVARTIS SEEDS AG 1 120 Developed the variety
Applicant
Syngenta Participations AG 2 266 Submitted the application to the register
Rights holder
Syngenta Participations AG 2 266 Holds the rights to the variety
Maintainer
Dobroudja Agricultural Institute 210 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 Terminated

    № 217612

    Registration
    18 February 2005
    Terminated
    8 October 2019
  • BG Bulgaria Active

    № 1261/77

    Application
    18 February 2005
    Registration
    18 February 2005
  • UA Ukraine Active

    № 09017018

    Application
    22 January 2009

Plant breeders' rights

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

France № 9488
Terminated
  1. Application filed 9 April 1990
  2. Registered 22 February 1994
  3. Entry closed 1 March 1999

More 4 records protections in other jurisdictions are shown on the map above.

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

Same species

Other varieties: Sunflower

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RW 659

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Helianthus annuus L. · Sunflower

NORTHRUP KING Co (US)

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4 records

RW 663

Terminated

Helianthus annuus L. · Sunflower

NORTHRUP KING Co (US)

FR
1 record

Helianthus annuus L. · Sunflower

UA
4 records

Nearby in the species list Rustica 170, Rustica 172, Rustica 223 SU, Rustiflor, RW 16 M, RW 648, RW 651, RW 655, RW 659, RW 663, RW 666 RM 1, RW66613, RW66655, RW66663, RW66681, RW666IMI, RXA PES 26 1Rf, Ryhasol, Rytchi, S 11/19

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