Iridon

Protection expired

Chrysanthemum L. Chrysanthemum · Ornamentals · bred by WILLIAM E DUFFETT

also searched as: иридон

Variety description

10 August 2026

The variety belongs to the large-flowered chrysanthemum group. It is a standard object for scientific research, including work on genetic transformation for the development of shoot regeneration protocols and the introduction of target genes.

Under experimental conditions, the variety is used to study the influence of genetic engineering on plant architecture, specifically on height and branching. Agronomic studies are also conducted to examine the effect of various nitrogen and potassium concentrations on growth parameters, flower diameter, and product quality in interior conditions.

Sources7

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Countries of admission

3 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.

IS FI NO SE EE IE GB DK LV LT NL DE PL BY PT ES FR BE CZ SK UA RU LU CH AT HU MD IT SI HR RS RO MT GR BG CY

terminated no record

Variety registered as early as 2 jurisdictions, data for which we do not publish: their registry licenses have not yet been verified.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: WILLIAM E. DUFFETT 76 Developed the variety
Applicant: YODER BROTHERS INC. 645 Submitted the application to the register
Rights holder: Yoder Brothers, Inc.|Barberton, OH (U.S. corp.) Holds the rights to the variety

Plant breeders' rights

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

United Kingdom № 15/2085

Terminated

Application filed —
Registered —
Entry closed 19 May 1995

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

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Breeder

WILLIAM E DUFFETT

breeder code IRIDON

All 76 varieties of company

Registry records

Total records: 5
Jurisdictions shown: 3
Not yet disclosed: 2
First registration: 1988

Same species