Meesterproef

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Lactuca sativa L. Lettuce · Vegetables

also searched as: мистерпроеф

Variety description

10 August 2026

The variety is officially classified in international and regional catalogs as a synonym for the variety Majska kraljica, also known by the names May King, Maikönig and Reina de Mayo. It belongs to the Butterkopf/Butterhead type and forms a head.

The plant is early-ripening and is intended primarily for the spring growing season in open field or protected cultivation conditions.

Sources7

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Countries of admission

3 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

application terminated no record

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

Parties

Applicant: SEMENARNA LJUBLJANA, D.O.O. 170 Submitted the application to the register
Maintainer: SEMENARNA LJUBLJANA, D.O.O. 170 Responsible for variety maintenance

Admission to trade

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

HR Croatia Protection expired

№ 1006199

Terminated

30 June 2013
QZ European Union Active

№ 272504
SI Slovenia Application submitted

№ LAC025

Application

23 January 2025

Registry	Number	Application	Registration	Terminated	Status
HR Croatia	1006199	—	—	30 June 2013	Protection expired
QZ European Union	272504	—	—	—	Active
SI Slovenia	LAC025	23 January 2025	—	—	Application submitted

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

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Same species

Other varieties: Lettuce

All 8 226 varieties of species

FRILL ICE

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Lactuca sativa L. · Lettuce

SVS Holland B.V.

DK ES FR IT

14 records

El Sol

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Lactuca sativa L. · Lettuce

Nunhems, NL

12 records

Ice Agata

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Lactuca sativa L. · Lettuce

SYNGENTA SEEDS B.V.

8 records

Medoc

Terminated

Lactuca sativa L. · Lettuce

1 record

Medusa

Terminated

Lactuca sativa L. · Lettuce

Panora s.p.a.

2 records

Megara

Terminated

Lactuca sativa L. · Lettuce

Seminis Vegetable Seeds

3 records

Nearby in the species list Mecana, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Medea, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Medeo, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Medimo, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Medita, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Meditation, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Mediterra, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">MEDITERRANEO, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Medoc, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Medusa, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Megara, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Meghan, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Megis, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Meglion, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Mehari, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Meikoningin, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Melanie, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Melati, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Melba, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Melbourne

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