Gran-Tetra

Terminated

Lolium multiflorum Lam. Italian ryegrass · Agricultural · bred by GUERRESI SEMENTI S.R.L.

also searched as: гран тетра

Variety description

10 August 2026

The variety is tetraploid (4n). Tetraploid forms of ryegrass are characterized by larger seeds, a well-developed root system, and increased productivity compared to diploid varieties.

The variety is intended for use in agricultural production as a forage crop. Specific agronomic indicators, data on disease resistance, and lodging resistance are not available in open sources.

Sources4

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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.

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

Also known as

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.

Gran-Tetra primary IT
Gran Tetra QM

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: GUERRESI SEMENTI S.R.L. 21 Developed the variety
Applicant: GUERRESI SEMENTI S.R.L. 21 Submitted the application to the register
Maintainer: GUERRESI SEMENTI S.R.L. 21 Responsible for variety maintenance

Admission to trade

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

IT Italy Terminated

№ 003910_A 003910

Application

2 July 2005

Registration

19 April 1994

Terminated

7 March 2005

Registry	Number	Application	Registration	Terminated	Status
IT Italy	003910_A 003910	2 July 2005	19 April 1994	7 March 2005	Terminated

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

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Breeder

GUERRESI SEMENTI S.R.L. All 21 varieties of company

Registry records

Total records: 2
Jurisdictions shown: 1
First registration: 1994

Same species