Hazelnuts Oregon
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Types of Hazelnut Trees
Jefferson
Released 2009 as Barc replacement. Nut Maturity with Barc. Nut yield higher than Barc. Tree shape more upright than Barc. Fewer defects but more mold than Barc. Bacterial blight susceptible — spray copper. Very late flower, very late pollen needed. Recommend 20% Felix, 20% Eta, 60% Theta Incompatibility alleles -1 3
Jefferson 1, 3 3.7 45 Round Medium 4–5 76–84 3.0
Theta
Conveniently sized for ease of harvesting, resistant to Filbert. Blight and tolerant of harsh conditions. The Theta seems to have it all. Covering the tree are thick, green cabbage-like leaves. Aside from the numerous qualities of the tree itself, the hazelnuts are some of the best we've seen. Gorgeous, glistening, copper-colored hazelnuts abound. Created to produce high yields, the Theta's nuts fill their husks in great numbers. What's more, the Theta's flowers will pollinate and help increase production in your Jefferson Filbert trees as well.
Theta 5, 15 2.3 50 Round Small 2.5 85–93 2.5
Sacajawea
Released in February 2006. Compared to ‘Barcelona,’ ‘Sacajawea’ is a slightly smaller tree but has a higher yield efficiency, a higher percent kernel, fewer kernel defects, and smaller nuts.
Nuts mature and fall free of the husk 10 to 15 days before ‘Barcelona.’ Trees of ‘Sacajawea’ were tested in outdoor exposure trials and expressed a level of quantitative resistance to eastern filbert blight (EFB) similar to the highly resistant ‘Tonda di Giffoni.’ This cultivar does not carry complete resistance to EFB.
Sacajawea*^ 1, 22 2.8 48–50 Round Small 2.5–3.5 84 1
McDonald
Released 2014. Incompatibility alleles 2 15. For blanched kernel market. Excellent kenel quality, good blanching. High nut yield, 52% Kernel. Early maturity, moderately vigorous tree, grower friendly. Under high disease pressure, shows several cankers, few pustules, some with spores. Recommend fungicides by infected orchards.
PollyO
Released in 2010. High yields in trials. Excellent blanching. Outstanding kernel texture and flavor. Early nut maturity. High percent kernel (07.1%) Blanching. Up-right growth habit, vigorous Early flowering, early bud break. Incompatibiliry Alleles. 2 10
Wepster
Released in 2014. For blanched kernel market. High nut yields’ Good blanching and flavor. Cross compatible with McDonald. Vigorous and highly productive tree. Mature before Barcelona. Shells are greenish at maturity. Free husking. Few Defects. Alternative or replacement for Yamhill Incompatibility Alleles 1 2
Yamhill
Released in 2008 ‘Gasaway’ gene for EFB resistance, but drop starts early, last nuts fall with Barcelona. High nut yield per tree (110% of Barc) Short tree with spreading canopy. High percent kernel (49%) Nuts small, suitable for kernel market. Kernels attractive, little fiver, partial blanch. Very few defects, very low mold. Early mid-season flowering. Growth habit is low and wide. Incompatibility Alleles 8 26
Yamhill 8, 26 2.3 49 Round Small 4.4–5.0 75–91 2.5
Felix
The Felix varieties are highly resistant to Eastern Filbert Blight, and moderately hearty trees. They grow between 8’-12’ and the smaller nuts will be ready to harvest around mid-September.
Felix 15, 21 2.5 50 Round Small 1.8 95 3
York
Productive of average sized nuts of good kernel quality with few defects. York Hazelnut tree is fairly compact and is an excellent mid season pollen producer over a long period and is compatible with all other listed varieties. Named after York of Lewis and Clark fame. New OSU release with complete resistance to Eastern Filbert Blight disease.
York, a variety with the same pollen shed timing as the Daviana, and the EFB resistance gene.
York 2, 21 2.8 44 Round Small 4.4–4.8 81–84 3
Gamma
The Gamma Filbert Tree is completely resistant to Eastern Filbert Blight and is an excellent pollinizer for Jefferson and other varieties. Pollen is shed mid-season and lasts for a short duration. Nuts are medium-sized and mature just before Barcelona. Gamma should not be relied on as your only pollinizer as its flowering time is so short.
Gamma 2, 10 2.5 52 Round Small 6.0 80 3