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Variety description

10 August 2026

The Colt rootstock is a hybrid of sweet cherry and Prunus pseudocerasus. The plant is characterized as a semi-dwarf or medium-vigor rootstock, providing good anchorage for trees, which allows them to be grown without permanent support.

Trees on this rootstock typically reach a height of 4–5 meters. Colt possesses good resistance to bacterial canker, Phytophthora root rot, and rodent damage; however, it shows sensitivity to drought and susceptibility to bacterial root rot.

This rootstock is distinguished by good compatibility with most sweet cherry varieties and contributes to the production of high-quality fruit. There is no information regarding the existence of a plum variety with this name; the designation refers exclusively to stone fruit rootstocks.

Sources5
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Countries of admission

5 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Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified.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

Admission to trade

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

  • HU Hungary Active

    № 277228

    Registration
    12 December 2006
  • NL Netherlands Active

    № KRS4

    Registration
    30 September 2012
  • SK Slovak Republic Terminated

    № 192R001

    Application
    1 January 1992
    Registration
    26 March 1996
    Terminated
    17 September 2014

Plant breeders' rights

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

Netherlands № KRS4
Protection expired
  1. Application filed 24 July 1975
  2. Registered 22 February 1979
  3. Entry closed 23 February 2009

More 2 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: Plum

All 216 varieties of species

Gi 148/1

Active

Prunus L. · Plum

PROF. DR. WERNER GRUPPE & PROF. DR. HANNA SCHMIDT

HU NL
13 records

Gi 14813

Active

Prunus L. · Plum

Sabine Franken-Bembenek

DE
10 records

Gi 31817

Active

Prunus L. · Plum

Sabine Franken-Bembenek

DE
11 records

Clare

Active

Prunus L. · Plum

Amy IEZZONI

1 record

Comet

Active

Prunus L. · Plum

PRESSLER H.R.R.

3 records

Nearby in the species list C.679 mirobalán, CAB_6P, Camil, CANINO, Carmen, Cass, Cepe, CHANTURGUE, Clare, Clare County, Comet, CORAL_ROJO, DAMAS DE TOULOUSE 1869, Damil, Del Rey sun, DHPRS 2, Dhypres, Dhypres 6, Docera 6, DOSPINA 235

Discussion: Colt

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