Skip to content

Variety description

10 August 2026

The "Diadema F1" sweet corn belongs to the "baby corn" type. The growing season is 52–55 days. The plant forms 1–2 branched cobs weighing 200–300 g, with a length of 18–20 cm and a diameter of 10–15 cm. The variety possesses high resistance to diseases and stress conditions and requires spatial isolation from other corn types.

The "Diadema" grain hybrid is mid-season (FAO 320–340) and is a three-way cross hybrid. The grain is flint-dent. The hybrid is characterized by high initial growth vigor, tolerance to diseases, and rapid moisture loss with a yield potential of up to 145 c/ha. It is intended for cultivation for grain and silage.

Sources6
  • Loading…

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.

application no record

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

Admission to trade

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

  • UA Ukraine Application submitted

    № 15644001

    Application
    6 November 2015

Plant breeders' rights

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

Ukraine № 15644001
Application submitted
  1. Application filed 6 November 2015
  2. Registered
  3. Currently active indefinite in the register

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

Other varieties: Maize

All 37 291 varieties of species

P 9578

Active

Zea mays L. · Maize

Pioneer Overseas Cor, USA

AT BG HU RO SI SK +1
15 records

P 9074

Active

Zea mays L. · Maize

Pioneer Overseas Corporation, USA

AT BG DE RO SI SK +1
19 records

Zea mays L. · Maize

PIONEER| Pioneer Hi-Bred Services GmbH

AT BE DE LT SI SK
13 records

Diada M

Terminated

Zea mays L. · Maize

Stupa Leonid IAkovych, Piliuhin Anatolii Saveliiovych, Sokolov V'iacheslav Mykhailovych, Bielousov Anatolii Oleksandrovych,

UA
2 records

Diadek

Terminated

Zea mays L. · Maize

Dekalb Genetics Corporation

IT
2 records

Dialekt

Withdrawn

Zea mays L. · Maize

MULLER| J.P. Muller c/o Maiszuchtstation Ciba-Geigy Semences

DE
2 records

Nearby in the species list DI6114D, DI6116A, DI6119A, DI6119B, DI8110A, DI8114B, DI8115A, Diablo, Diada M, Diadek, Dialekt, Dialog, Dialogo, Dialoh, DIALOH 300, Diamant, Diamantino, Dian, Diana 180 SV, Diantus

Discussion: Diadema

0 messages

Growing experience and notes on the entry. Comments are not part of the reference data and are not verified against primary sources.

Comments are open to signed-in readers. Sign in · Sign up