Dumka

Active

Lactuca sativa L. var. capitata L. Head lettuce · Vegetables · bred by Przedsiębiorstwo Nasiennictwa Ogrodniczego i Szkółkarstwa Spółka Akcyjna w upadłości likwidacyjnej \Instytut Ogrodnictwa - Państwowy Instytut Badawczy

also searched as: думка

Variety description

10 August 2026

Mid-season variety with a vegetation period of 50 to 70 days. Forms regular round heads weighing 400–500 g. Leaves are broad, elliptical, moderately blistered, with very slightly wavy edges and a whitish-yellow-green color.

The variety possesses resistance to 4 races of downy mildew. It tolerates high temperatures well and does not enter the bolting phase for a long time. Intended for spring and early summer harvesting.

For open field cultivation, a planting scheme of 25x30 cm is recommended with a seeding rate of 0.3–0.5 kg/ha. Sowing is carried out in the second to third ten-day period of March, transplanting into the soil in the second to third ten-day period of April, and harvesting from the third ten-day period of May to the second ten-day period of June.

Sources5

Loading…

The list of sources is loaded via script—please enable JavaScript.

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: Przedsiębiorstwo Nasiennictwa Ogrodniczego i Szkółkarstwa Spółka Akcyjna w upadłości likwidacyjnej \Instytut Ogrodnictwa - Państwowy Instytut Badawczy 24 Developed the variety
Applicant: Przedsiębiorstwo Nasiennictwa Ogrodniczego i Szkółkarstwa Spółka Akcyjna w upadłości likwidacyjnej \Instytut Ogrodnictwa - Państwowy Instytut Badawczy 24 Submitted the application to the register
Rights holder: Przedsiębiorstwo Nasiennictwa Ogrodniczego i Szkółkarstwa Spółka Akcyjna w upadłości likwidacyjnej \Instytut Ogrodnictwa - Państwowy Instytut Badawczy 24 Holds the rights to the variety
Maintainer: Przedsiębiorstwo Nasiennictwa Ogrodniczego i Szkółkarstwa w Ożarowie Mazowieckim Spółka z o.o. 181 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 W2391

Application

13 December 1999

Registration

2 January 2002

Registry	Number	Application	Registration	Terminated	Status
PL Poland	R W2391	13 December 1999	2 January 2002	—	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 W184

Terminated

Application filed 31 January 2003
Registered 30 May 2003
Entry closed 19 June 2013

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