Katja ISK

Active

Malus domestica (Suckow) Borkh. Apple · Fruit crops · bred by Instytut Ogrodnictwa - Państwowy Instytut Badawczy

also searched as: катйа иск

Variety description

10 August 2026

The tree is medium-sized, about 4 meters tall, with a broad-rounded or broad-pyramidal crown of medium density. The variety is precocious, enters fruiting in the third year, and possesses stable and rapidly increasing yield.

Fruits are of medium size, weighing from 119 to 170 g, round-conical in shape with firm, shiny skin. The ground color is yellow-green with an intense bright red blush; the flesh is creamy and juicy.

Harvest maturity occurs in mid-to-late August. The fruits have good transportability and can be stored in cool conditions for up to 1–2 months. The variety is characterized by high resistance to scab and powdery mildew; winter hardiness reaches -30 °C.

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Countries of admission

1 jurisdiction

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
Applicant: Instytut Ogrodnictwa - Państwowy Instytut Badawczy 468 Submitted the application to the register
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

№ SR S263

Application

21 March 1991

Registration

29 March 1995

Registry	Number	Application	Registration	Terminated	Status
PL Poland	SR S263	21 March 1991	29 March 1995	—	Active

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

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Breeder

Instytut Ogrodnictwa - Państwowy Instytut Badawczy

breeder code Katja ISK

All 468 varieties of company

Registry records

Total records: 1
Jurisdictions shown: 1
First registration: 1995

Same species