← hazelnut
rights unknown
Yamhill
A named hazelnut cultivar.
The record
- Parentage
- not recorded
- Origin
- Oregon State University hazelnut breeding program · Corvallis, Oregon · released January 2008
- Rights
- rights unknown — No plant patent found in the sources consulted. An Oregon State account of its patented hazelnut releases names ‘Wepster’, ‘McDonald’ and ‘York’, and does not name ‘Yamhill’ — which is an absence, not a release statement.
- Also known as
- OSU 542.102
- Kernel
- Small, with few defects; suited to the kernel market rather than in-shell
- Yield
- Marketable yields exceeding ‘Barcelona’ from a smaller tree
- Harvest
- About 10 to 15 days ahead of ‘Barcelona’
- Blight
- Complete resistance at release, from the ‘Gasaway’ gene; reported infected by the strains found from 2023
- Pollination
- Compatible pollinizers include ‘Gamma’, ‘Delta’, ‘Epsilon’ and ‘Zeta’
Description
The kernel-market counterpart to ‘Jefferson’, and the earlier release of the two. The tree is smaller than ‘Barcelona’ and out-yields it on marketable weight, which is the combination that lets an orchard raise density.
Its pedigree is not recorded here. The release literature is cited below and states the parentage in a pedigree figure the sources consulted did not reproduce in text; rather than guess at parents, the field is left empty.
Where to find it
No source recorded. That does not mean the cultivar is unavailable, only that this record does not yet name a nursery carrying it. Point us at one and it goes in.