ISHS Acta Horticulturae 556: V International Congress on Hazelnut
PERFORMANCE OF 17 HAZELNUT SELECTIONS FROM FOUR DIFFERENT BREEDING PROGRAMS IN TARRAGONA (SPAIN) |
| Authors: | M. Rovira, J. Tous |
| Keywords: | breeding, selection, hazelnut, Corylus avellana, filbert |
| DOI: | 10.17660/ActaHortic.2001.556.23 |
| Abstract:
The performance of several hazelnut selections from four different breeding programs, [eight selections from INRA-Bordeaux (France), four selections from OSU-Oregon (USA), four selections from IRTA-Mas Bové (Spain) and one selection from Universitŕ di Torino (Italy)] were studied for five years (1995-1999) in a collection at IRTA-Mas Bové (Spain). Genotypes suited to two types of kernel markets, processing and direct consumption, were included. Data were collected and analysed on flowering, leaf emergence, nut maturity, sensitivity to Phytoptus avellanae Nal. and nut characteristics (nut and kernel weight, kernel percent, size, frequency of blanks and doubles, brown spots in kernel cavity and blanching). Differences in the characteristics among the genotypes were detected. Some INRA selections were outstanding for their nut and kernel size and weight, with no blanks or doubles. However, their kernel quality was low due to a higher percentage of brown spots in the kernel cavity than in other selections. Two selections from Oregon (OSU 243.002 and OSU 225.077) were the most productive, followed by two INRA selections (N-549 and N-508). Selections from Mas Bové were the latest to ripen, together with N-497 and N-473 from INRA. Three selections, H-302-35 from INRA, OSU 225.077 and AA-43 from Mas Bové, appear not to be susceptible to Phytoptus avellanae. These new genotypes were compared with the important cultivars, ‘Negret’, ‘Pauetet’ and ‘Tonda di Giffoni’, that are grown in Tarragona. | |
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