‘Dorris’ is a new hazelnut (Corylus avellana L.) cultivar for the blanched kernel and in-shell markets. It was released by the Oregon Agricultural Experiment Station in Feb. 2011. It combines high resistance to eastern filbert blight (EFB) caused by the fungus Anisogramma anomala (Peck) E. Müller and bud mites (primarily Phytoptus avellanae Nal.) with high nut yield, medium nut size, attractive nuts and kernels, and excellent kernel flavor. Compared with the standard ‘Barcelona’, ‘Dorris’ has smaller trees, similar yields per tree, higher nut yield efficiency, and similar nut maturity. Most of the pellicle is removed from ‘Dorris’ kernels by dry heat, giving an attractive white kernel. Also, kernel texture and flavor are excellent, making them suitable for many end uses, although they are larger than ideal for the kernel market. Large nuts of ‘Dorris’ are also suited to the in-shell market. ‘Dorris’ is recommended for Oregon's Willamette Valley and other areas with a similar climate.
MehlenbacherS.A.BrownR.N.DavisJ.W.ChenH.BassilN.V.SmithD.C.KubisiakT.L.2004RAPD markers linked to eastern filbert blight resistance in Corylus avellanaTheor. Appl. Genet.108651656
SathuvalliV.R.MehlenbacherS.A.SmithD.C.2010Response of hazelnut accessions to greenhouse inoculation with Anisogramma anomalaHortScience4511161119