Calca

Terminated

Oryza sativa L. Rice · Agricultural · bred by Semillas Certificadas Castells S.L.

also searched as: калка

Variety description

10 August 2026

The Calca variety is a registered rice variety whose breeding and production are associated with the Ebro River delta in Spain. The primary use of the variety in agronomic documentation is its role as a standard when evaluating specific morphological characteristics, in particular the intensity of lemma tip coloration.

In official testing protocols, the variety is characterized by a very strong expression of certain morphological parameters. Detailed agronomic data, such as maturity dates, plant height, or yield indicators, are not presented in open sources.

Sources5

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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

terminated no record

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

Parties

Breeder: SEMILLAS CERTIFICADAS CASTELLS, S.L. 105 Developed the variety
Applicant: SEMILLAS CERTIFICADAS CASTELLS, S.L. 105 Submitted the application to the register
Rights holder: SEMILLAS CERTIFICADAS CASTELLS, S.L. 105 Holds the rights to the variety
Maintainer: SEMILLAS CERTIFICADAS CASTELLS, S.L. 105 Responsible for variety maintenance

Admission to trade

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

QZ European Union Terminated

№ 224640

Terminated

25 April 2008
ES Spain Terminated

№ 19920387

Application

30 December 1992

Registration

25 May 1995

Terminated

25 April 2008

Registry	Number	Application	Registration	Terminated	Status
QZ European Union	224640	—	—	25 April 2008	Terminated
ES Spain	19920387	30 December 1992	25 May 1995	25 April 2008	Terminated

Plant breeders' rights

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

Spain № 19963969

Withdrawn

Application filed 12 April 1996
Registered —
Entry closed 7 May 2002

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

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This is a directory, not an official registry: data is based on public disclosures and may have changed. More about sources

Breeder

Semillas Certificadas Castells S.L. All 105 varieties of company

Registry records

Total records: 3
Jurisdictions shown: 1
First registration: 1995

Same species

Other varieties: Rice

All 1 415 varieties of species

QM 1003

Active

Oryza sativa L. · Rice

MARTINS, LUIS FERNANDO RAJ, YOG SOLIS, RENANDO ROCHA, MILTON BORIN, REGIS

9 records

Sirio CL

Active

Oryza sativa L. · Rice

Sardo Piemontese Sementi Soc. Coop. Società Agricola

6 records

Osmancik-97

Active

Oryza sativa L. · Rice

NECMI BESER, HALIL SUREK

BG UA

6 records

Cagliostro

Active

Oryza sativa L. · Rice

LUGANO LEONARDO SRL

2 records

Cala

Active

Oryza sativa L. · Rice

Texas Agricultural Experiment Station/ USDA-ARS

4 records

Calendal

Terminated

Oryza sativa L. · Rice

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

3 records

Nearby in the species list BTS2, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Bueno, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Bulgarka, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">BURANA, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Burma, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">BVT01, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Caban, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Cadet, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Cagliostro, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Cala, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Calendal, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Calipso, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Calliope, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Cambon, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Camilla, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Cammeo, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Campanar Pv, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Canal, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">Candido CL, class="text-ink hover:text-field underline underline-offset-2 decoration-rule hover:decoration-field transition-colors">CANELA

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