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Harmonium

Active

Zea mays L. Maize · Agricultural · bred by Joel Roucolle

also searched as: хармониум

Variety description

10 August 2026

The hybrid belongs to the mid-ripening group with an FAO 380 rating and dent grain type. The plant reaches a height of 250–256 cm, with the ear attachment height being about 107 cm. The ear contains 16–18 rows of kernels with 32 kernels in each, the thousand kernel weight is about 360 g.

The plant possesses high resistance to lodging and tolerance to ear and stalk Fusarium, Helminthosporium leaf blight, common smut and head smut. The hybrid is characterized by high early growth vigor, as well as resistance to drought and high temperatures during the flowering period.

Recommended for cultivation in the Forest-Steppe and Steppe zones. The recommended plant density at harvest ranges from 55–60 thousand plants per hectare under insufficient moisture to 60–70 thousand plants per hectare under sufficient moisture.

Sources6
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Countries of admission

2 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.

QM

terminated no record

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

Parties

Breeder
Joel Roucolle 67 Developed the variety
Applicant
MONSANTO TECHNOLOGY LLC 9 024 Submitted the application to the register
Rights holder
MONSANTO TECHNOLOGY LLC 9 024 Holds the rights to the variety
Maintainer
Bayer Seeds SAS 1 108 Responsible for variety maintenance

Admission to trade

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

  • UA Ukraine Terminated

    № 14009160

    Application
    25 November 2014
    Registration
    24 March 2017
    Terminated
    12 September 2025

Plant breeders' rights

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

Ukraine № 14009160
Terminated
  1. Application filed 25 November 2014
  2. Registered 14 December 2017
  3. Entry closed 12 September 2025

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

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Nearby in the species list HAPI, Happi CS, HARALD, Harant, Harantiia MV, Hardemaryn 185 SV, Hardi, Hardware, Haris NS, Harmonie, Harmony, Harpun, Harry Bt, Hart, Hartford, Haruka, Harvard, Harvest, Harvestero, Hasco

Discussion: Harmonium

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