ADVANCED SELECTION AND CULTIVAR PERFORMANCE OF HAZELNUT TRIALS PLANTED IN 1994 AND 1998 AT OREGON STATE UNIVERSITY

R.L. McCluskey, A.N. Azarenko, S.A. Mehlenbacher, D.C. Smith
Hazelnut selections from the Oregon State University breeding program are evaluated in replicated yield trials prior to cultivar release. New trials of ‘advanced selections’ have been established every one to two years since 1990. Plantings established in 1994 and 1998 are discussed in this paper. The 1994 trial contained ten selections plus ‘Barcelona’, ‘Casina’, ‘Negret’, ‘Segorbe’, and ‘Willamette’. Data were collected on tree size, nut and kernel yield and quality from 1996-2000. Three selections had cumulative nut and kernel yields greater than ‘Willamette’, the highest yielding of the named cultivars. Several selections had kernel quality comparable to ‘Negret’, however all selections in this trial were susceptible to eastern filbert blight (EFB) and the planting was removed after the seventh leaf. The 1998 trial initially included ‘Barcelona’, ‘Lewis’, and 10 EFB-resistant selections. Of these ten, OSU 510.041 was released as the pollinizer ‘Delta’ and three selections continue to be evaluated. Three years of yield and kernel data are presented here. Kernels are small and the trees are less precocious than in previous trials.
McCluskey, R.L., Azarenko, A.N., Mehlenbacher, S.A. and Smith, D.C. (2005). ADVANCED SELECTION AND CULTIVAR PERFORMANCE OF HAZELNUT TRIALS PLANTED IN 1994 AND 1998 AT OREGON STATE UNIVERSITY. Acta Hortic. 686, 71-78
DOI: 10.17660/ActaHortic.2005.686.7
https://doi.org/10.17660/ActaHortic.2005.686.7
Corylus avellana, filbert, yield efficiency, nut breeding
English

Acta Horticulturae