G.890
ActiveMalus domestica x Malus robusta · Apple
Terence Robinson, James Cummins, Herbert Sanders A.
G.66
ActiveMalus domestica x Malus robusta Apple · Ornamentals · bred by Gennaro Fazio^^^Herbert Aldwinckle^^^Terence L. Robinson^^^James Cummins
also searched as: г 66
Variety description
10 August 2026
The rootstock belongs to the semi-dwarf group and, in terms of vigor, occupies an intermediate position between M.26 and M.7. It possesses high productivity and ensures good compatibility with various scions. It has a strong graft union and promotes quality fruit development, maintaining a balance of potassium and calcium in the tissues.
The plant was bred for commercial and orchard cultivation as a resistant rootstock. Its use allows for tree size control while providing protection against critical diseases such as fire blight and root rots, making it suitable for use in intensive orchards.
Sources5
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Also known as
breeder code g.66
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.66 primary US
- G 66 QZ
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
Parties
- Breeder
- Gennaro Fazio^^^Herbert Aldwinckle^^^Terence L. Robinson^^^James Cummins 1 Developed the variety
- Applicant
- Fazio Gennaro,Robinson Terence Lee,Aldwinckle Herbert Sanders,Cummins James N. 2 Submitted the application to the register
- Rights holder
- Cornell University,The United States of America, as Represented by the Secretary of Agriculture 9 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.
United States of America
№ 17589341
Active
- Application filed 31 January 2022
- Registered 6 June 2023
- 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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Same species
Other varieties: Apple
G.484
ActiveMalus domestica x Malus robusta · Apple
Gennaro Fazio^^^James Cummins^^^Herbert Aldwinckle^^^Terence L. Robinson
G.257
ActiveMalus domestica x Malus robusta · Apple
Gennaro Fazio^^^James Cummins^^^Herbert Aldwinckle^^^Terence L. Robinson
G 814
ActiveMalus domestica x Malus robusta · Apple
Herbert Aldwinckle^^^Gennaro Fazio^^^James Cummins^^^Terence L. Robinson