R400MR

Active

Zea mays L. subsp. mays (Popcorn Group) Popcorn · Agricultural · bred by CROOKHAM COMPANY

also searched as: р400мр

Variety description

10 August 2026

The ripening period of the hybrid varies from 95 to 110 days. Plants reach a height of 1.8–2.1 meters, have a strong single stem and broad dark green leaves.

The grain is characterized by a bright orange color and an expansion ratio of about 34 units. Upon popping, about 80% of the grains acquire a spherical or mushroom shape, which makes them convenient for applying caramel coatings.

The variety has high resistance to common rust, helminthosporium leaf spot, gray leaf spot, and lodging. It shows intermediate resistance to bacterial wilt.

Sources8

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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

active no record

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

Parties

Breeder: Crookham Company Inc. 88 Developed the variety
Applicant: Crookham Company Inc. 88 Submitted the application to the register
Maintainer: Crookham Company Inc. 88 Responsible for variety maintenance

Admission to trade

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

NL Netherlands Active

№ MAS2392

Application

27 September 2019

Registration

25 October 2019

Registry	Number	Application	Registration	Terminated	Status
NL Netherlands	MAS2392	27 September 2019	25 October 2019	—	Active

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

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Breeder

CROOKHAM COMPANY

breeder code R400MR

All 88 varieties of company

Registry records

Total records: 1
Jurisdictions shown: 1
First registration: 2019

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