Stamford

Protection expired

Allium cepa L. var. cepa Onion · Vegetables · bred by Syngenta Seeds B.V.

also searched as: стамфорд

Variety description

10 August 2026

The Stamford variety is classified as a hybrid. In available open sources, the fact of its inclusion in registers of vegetable crop varieties is confirmed.

In agronomic research, this hybrid was used as an object of field trials for assessing productivity and studying the impact of fertilizers on the crop.

Sources4

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

Parties

Breeder: Syngenta Seeds B.V. Developed the variety
Applicant: Syngenta Seeds B.V. (NL) Submitted the application to the register
Maintainer: Syngenta Seeds B.V. (NL) 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

№ 250362
NL Netherlands Terminated

№ UIG590/9757

Application

19 December 1995

Registration

4 September 1997

Terminated

23 December 2021
CZ Czechia Protection expired

№ 5579

Application

29 December 1999

Registration

29 January 2002

Terminated

29 January 2012
PL Poland Terminated

№ R W2732

Application

30 December 2000

Registration

23 January 2003

Terminated

24 February 2006

Registry	Number	Application	Registration	Terminated	Status
QZ European Union	250362	—	—	—	Terminated
NL Netherlands	UIG590/9757	19 December 1995	4 September 1997	23 December 2021	Terminated
CZ Czechia	5579	29 December 1999	29 January 2002	29 January 2012	Protection expired
PL Poland	R W2732	30 December 2000	23 January 2003	24 February 2006	Terminated

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

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