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Pyrodwarf

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Pyrus L. Pear · Fruit crops · bred by HELMUTH JACOB_

also searched as: пиродварф

Variety description

10 August 2026

The rootstock was developed at the Geisenheim Research Center. It possesses excellent compatibility with most pear varieties, making it an alternative to seedling rootstocks and quince, especially in conditions where quince shows incompatibility or tolerates soil characteristics poorly.

Trees on this rootstock enter into fruiting in the 2–4th year after planting. The rootstock is characterized by resistance to waterlogging, high carbonate content in the soil, and iron chlorosis. It demonstrates good winter hardiness and moderate resistance to fire blight.

The growth vigor of grafted trees is about 50–70% of the size of trees on seedling rootstocks; however, depending on growing conditions and the scion, the rootstock can perform as a medium-sized one.

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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.

active no record

Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified. This section will be available upon verification.

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

Parties

Breeder
HELMUTH JACOB_ 1 Developed the variety
Applicant
Hochschule Geisenheim Institut für Obstbau Submitted the application to the register
Rights holder
Hochschule Geisenheim Institut für Obstbau Holds the rights to the variety

Plant breeders' rights

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

Germany № BIU 00005
Active
  1. Application filed 14 September 1993
  2. Registered 18 December 1997
  3. Currently active indefinite in the register

More 1 record protections in other jurisdictions are shown on the map above.

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

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Nearby in the species list Kirchensaller Mostbirne ISK, KIRSCHENSALLER, Kyklop, Lombacad, Manon, Mlečnica, Novi, OLD HOME, PremP009, Premp52, Pyroplus, PYRUS_COMMUNIS, Red Druz, RNA 0801, Roberto, Royal Forelle, Schöne Helene, sjemenjak kruške, Superbia, Superior

Discussion: Pyrodwarf

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