Rubra

Active

Juglans regia L. Persian walnut · Fruit crops

also searched as: рубра

Variety description

10 August 2026

The tree reaches a height of 18–25 meters and possesses a loose, umbrella-shaped crown. The leaves are odd-pinnate, 20–40 cm long, and consist of 5–7 leaflets. The fruits are spherical in shape with a diameter of 3.5–5 cm. The primary distinguishing feature is the blood-red or mottled coloration of the shell and the dull pinkish-red color of the kernel skin.

In agronomic literature, Rubra is more often considered a historical designation for a group of plants with red pigment rather than a single commercial cultivar with regulated yield or winter hardiness indicators. In terms of productivity and fruit size, such forms are often inferior to standard industrial cultivars.

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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

Maintainer: Information not available - Contact NL authorities 2 164 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 Terminated

№ WNT77

Registration

30 September 2012
NL Netherlands Active

№ WNT00077

Registration

30 September 2012

Registry	Number	Application	Registration	Terminated	Status
NL Netherlands	WNT77	—	30 September 2012	—	Terminated
NL Netherlands	WNT00077	—	30 September 2012	—	Active

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

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