Skip to content

Stemster

Active

Solanum tuberosum L. Potato · Agricultural · bred by Dunnet, J.

also searched as: стемстер

Variety description

10 August 2026

The Stemster variety is a plant with a height from 0.5 to 1 meter with high growth vigor and rapid emergence. Tubers have an elongated-oval shape, red skin color, and pale yellow flesh.

The plant possesses high adaptability and tolerates drought and heat well. The variety shows resistance to potato cyst nematode (PCN Ro1) and potato virus Y.

The dry matter content in the tubers is 18–20%. The variety belongs to cooking type B, is characterized by slight disintegration during cooking, and is suitable for boiling, frying, baking, and making mashed potatoes. The tubers have good keeping quality.

Sources7
  • Loading…

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.

QZ

active terminated no record

Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified.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
Dunnet, J. 4 Developed the variety
Applicant
Germicopa SAS, FR 38 Submitted the application to the register
Rights holder
Caithness Potato Breeders Ltd. 43 Holds the rights to the variety
Maintainer
J & E SMILLIE (MONTROSE) LTD 16 Responsible for variety maintenance

Admission to trade

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

  • GB United Kingdom Active

    № 4/296

    Registration
    19 August 1986
  • QZ European Union Active

    № 248542

  • SK Slovak Republic Protection expired

    № 195R248

    Application
    10 February 1995
    Registration
    24 March 1998
    Terminated
    31 December 2008
  • FR France Active

    № 4065626

    Application
    22 October 2018
    Registration
    1 January 2019

Plant breeders' rights

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

United Kingdom № 4/296
Protection expired
  1. Application filed
  2. Registered
  3. Entry closed 18 August 2016

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: Potato

All 4 994 varieties of species

SANTE'

Active

Solanum tuberosum L. · Potato

VEREDELINGSBEDRIJF VV

BG CZ EE HR HU IE +7
25 records

VR 808

Active

Solanum tuberosum L. · Potato

VAN RIJN-KWS B.V.

NL PL UA
25 records

Solanum tuberosum L. · Potato

Z.P.C. /F.G. VAN DER ZEE /G. VAN DER ZEE /P.J. VAN DER ZEE

BE CZ DE ES FR HR +5
23 records

Stegna

Withdrawn

Solanum tuberosum L. · Potato

Pomorsko Mazurska Hodowla Ziemniaka Sp.z o.o. z siedziba w Strzekecinie

PL
1 record

Stella

Active

Solanum tuberosum L. · Potato

SAKA RAGIS PFLANZE.

ES FR
4 records

Stena

Active

Solanum tuberosum L. · Potato

Germicopa Breeding

NL
1 record

Nearby in the species list Starne, Starsky, Starter, Stasia, Stayer, Stefanie, Stefano, Steffi, Stegna, Stella, Stena, Stepaniia, Stereden, Stetos, Stiletto, Stina, Stirling, Stobrawa, Stokrotka, Storm

Discussion: Stemster

0 messages

Growing experience and notes on the entry. Comments are not part of the reference data and are not verified against primary sources.

Comments are open to signed-in readers. Sign in · Sign up