Kalipso

Active

Prunus domestica L. European plum · Fruit crops · bred by Instytut Ogrodnictwa - Państwowy Instytut Badawczy

also searched as: калипсо

Variety description

10 August 2026

The tree has moderate to vigorous growth and forms a compact, medium-dense canopy with upward-growing shoots. It enters into fruiting 3–4 years after planting. The variety shows good winter hardiness, resistance to Monilinia under standard protection, and tolerance to Plum pox virus.

Fruits are medium-sized, weighing 30–50 g, with an elliptical or broadly oval shape. The skin is dark blue, often covered with a bluish waxy bloom. The flesh is yellow-green or orange-yellow, firm, juicy, and has an easily removable stone. The fruits are not prone to dropping and remain on the branches for a long time after ripening.

The variety ripens in late July or early August. The question of self-fertility remains debatable, so to obtain a bountiful harvest, it is recommended to plant pollinator varieties such as 'Jojo', 'Węgierka Dąbrowicka', 'Cacanska Rana', or 'Emper'. The produce is suitable for both fresh consumption and processing.

Sources6

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Countries of admission

2 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

active no record

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

Parties

Breeder: Instytut Ogrodnictwa - Państwowy Instytut Badawczy 468 Developed the variety
Rights holder: Instytut Ogrodnictwa - Państwowy Instytut Badawczy 468 Holds the rights to the variety
Maintainer: Instytut Ogrodnictwa - Państwowy Instytut Badawczy 468 Responsible for variety maintenance

Admission to trade

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

PL Poland Active

№ R S778

Application

19 December 2002

Registration

23 January 2009

Registry	Number	Application	Registration	Terminated	Status
PL Poland	R S778	19 December 2002	23 January 2009	—	Active

Plant breeders' rights

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

Poland № O S155

Active

Application filed 19 December 2002
Registered 26 January 2009
Currently active indefinite in the register

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

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Breeder

Instytut Ogrodnictwa - Państwowy Instytut Badawczy

breeder code SL 1 (D1-IV-163)

All 468 varieties of company

Registry records

Total records: 4
Jurisdictions shown: 2
First registration: 2009

Same species