Progres

Terminated

Valerianella locusta (L.) Laterr. Corn salad · Vegetables · bred by ZWAAN MARTEN| Marten Zwaan

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Variety description

10 August 2026

The variety is used in UPOV documentation as a standard for describing morphological characteristics, in particular, demonstrating a very high degree of intensity of the onset of flowering. By leaf morphology type, it belongs to the group of short-leaf varieties.

In agronomic studies, the variety is considered as an object of comparative phytopathological observations when studying susceptibility to downy mildew. Intended for cultivation as a leafy salad crop, suitable for cultivation under plastic covers.

Sources6

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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: ZWAAN MARTEN| Marten Zwaan 5 Developed the variety
Applicant: ZWAAN SAMENZUCHT| Rijk Zwaan Welver GmbH Gemuesezuechtung & Saatguthandel 13 Submitted the application to the register
Rights holder: ZWAAN SAMENZUCHT| Rijk Zwaan Welver GmbH Gemuesezuechtung & Saatguthandel 13 Holds the rights to the variety
Maintainer: Rijk Zwaan Zaadteelt en Zaadhandel B.V. 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

№ 288961

Terminated

22 December 2008
NL Netherlands Terminated

№ VDS17/5201

Application

19 February 1987

Registration

29 July 1988

Terminated

22 December 2008
FR France Terminated

№ 0063139

Application

1 December 1989

Registration

1 January 1992

Terminated

1 January 1997

Registry	Number	Application	Registration	Terminated	Status
QZ European Union	288961	—	—	22 December 2008	Terminated
NL Netherlands	VDS17/5201	19 February 1987	29 July 1988	22 December 2008	Terminated
FR France	0063139	1 December 1989	1 January 1992	1 January 1997	Terminated

Plant breeders' rights

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

Germany № SAF 00019

Terminated

Application filed 21 June 1990
Registered 7 September 1992
Entry closed 19 December 2003

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

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Breeder

ZWAAN MARTEN| Marten Zwaan

breeder code PROGRES

All 5 varieties of company

Registry records

Total records: 4
Jurisdictions shown: 3
First registration: 1988

Same species