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G 814

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Malus domestica x Malus robusta Apple · Ornamentals · bred by Herbert Aldwinckle^^^Gennaro Fazio^^^James Cummins^^^Terence L. Robinson

also searched as: г 814

Variety description

10 August 2026

The G.814 rootstock was developed as a specialized component for improving apple tree root systems. It is classified as dwarf, while providing control over tree vigor, and is characterized by good winter hardiness, as well as the ability to promote early fruiting of grafted cultivars.

The plant exhibits high resistance to powdery mildew, crown rot (Phytophthora), and fire blight, and also possesses tolerance to apple replant disease. At the same time, the rootstock is susceptible to woolly apple aphid and apple stem grooving virus, the use of scionwood infected with which may reduce tree vigor.

G.814 is recommended for establishing high-density orchards and is suitable for weak-growing apple cultivars. Its application influences the mineral composition of the fruit, in particular, calcium levels, although as a rootstock it does not directly determine the consumer quality of the fruit itself.

Sources8
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Also known as

breeder code g.814

A single variety may be registered in different countries under different names. All records are consolidated into one profile based on the breeder's code—an internal number that is identical for the variety across all registries.

  • G 814 primary QZ
  • G.814 US

The primary name shown is the one under which the variety is registered in the largest number of jurisdictions. Search finds the variety by any of its names.

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

Plant breeders' rights

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

United States of America № 14120454_2
Active
  1. Application filed 20 May 2014
  2. Registered 7 February 2017
  3. Currently active indefinite in the register

More 2 records 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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Same species

Other varieties: Apple

All 5 varieties of species

G.890

Active

Malus domestica x Malus robusta · Apple

Terence Robinson, James Cummins, Herbert Sanders A.

4 records

G.484

Active

Malus domestica x Malus robusta · Apple

Gennaro Fazio^^^James Cummins^^^Herbert Aldwinckle^^^Terence L. Robinson

2 records

G.66

Active

Malus domestica x Malus robusta · Apple

Gennaro Fazio^^^Herbert Aldwinckle^^^Terence L. Robinson^^^James Cummins

2 records

G.257

Active

Malus domestica x Malus robusta · Apple

Gennaro Fazio^^^James Cummins^^^Herbert Aldwinckle^^^Terence L. Robinson

2 records

Nearby in the species list G.257, G.484, G.66, G.890

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