The hazelnut cultivar (variety) developed at Oregon State, named 'McDonald', is from a cross of 'Tonda Pacifica' and 'Santiam'.
Tree Vigor and Growth Habit
McDonald will produce trees that are 70% of Barcelona. Trees will have moderate spreading similar to Lewis and 'Jefferson'.
'McDonald' is resistant to Eastern Filbert Blight but some strikes have been noted in test orchards. 'McDonald' is also resistant to bud mites and has a low incidence of kernel mold.
'McDonald' layers well and produces liners that are well rooted similar to 'Jeffersn'.
'McDonald' has excellent texture and flavor, small kernel size, and kernel quality. Well suited for the blanched kernel market, chocolate products, and baked goods. 'Webster' and York can be used for pollinizers.