Northern Xtra Sweet

Terminated

Zea mays L. subsp. mays (Sweet Corn Group) Sweet corn · Agricultural · bred by Illinois Foundation Seeds

also searched as: нортерн кстра свит

Variety description

10 August 2026

The variety belongs to the sh2 supersweet corn group. The maturation period is 63–71 days, plant height reaches 1.5 meters. Ears 20–23 cm long contain 14–16 rows of kernels. Plants possess vigorous growth and good ear protection by the husk.

The variety is adapted to cultivation in cool soil conditions, however, it requires mandatory spatial or temporal isolation from other types of corn to prevent cross-pollination. May show susceptibility to common rust and Helminthosporium leaf blight.

Sources7

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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: Illinois Foundation Seeds 147 Developed the variety
Applicant: Wing Seed 198 Submitted the application to the register
Maintainer: Wing Seed 198 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

№ 289502

Registration

28 February 2013

Terminated

13 December 2022
NL Netherlands Terminated

№ MAS1622/3938

Application

23 February 1984

Terminated

13 December 2022
NL Netherlands Terminated

№ MAS1622

Application

22 February 2012

Registration

28 February 2013

Terminated

13 December 2022

Registry	Number	Application	Registration	Terminated	Status
QZ European Union	289502	—	28 February 2013	13 December 2022	Terminated
NL Netherlands	MAS1622/3938	23 February 1984	—	13 December 2022	Terminated
NL Netherlands	MAS1622	22 February 2012	28 February 2013	13 December 2022	Terminated

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

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Breeder

Illinois Foundation Seeds

breeder code Candle

All 147 varieties of company

Registry records

Total records: 3
Jurisdictions shown: 1
First registration: 2013

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