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Characterization of olive germplasm by chemical oil components and morphological descriptors in Basilicata region (Italy)

Published online by Cambridge University Press:  29 May 2012

V. Alba ,
V. Bisignano ,
A. Rotundo ,
G. B. Polignano  and
E. Alba
V. Alba
Affiliation:
Department of Agro-Forestry and Environmental Biology and Chemistry, Section of Genetics and Breeding, University of Bari, Bari, Italy
V. Bisignano
Affiliation:
Institute of Plant Genetics, C. N. R., Via Amendola 165/A, 70126Bari, Italy
A. Rotundo
Affiliation:
Department of Plant Production, University of Basilicata, Potenza, Italy
G. B. Polignano*
Affiliation:
Institute of Plant Genetics, C. N. R., Via Amendola 165/A, 70126Bari, Italy
E. Alba
Affiliation:
Department of Biology, Plant protection and Agroforestry Biotechnology, University of Basilicata, Potenza, Italy
*
*Corresponding author. E-mail: giambattista.polignano@igv.cnr.it
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Abstract

In this paper, we describe variations among autochthonous olive cultivars from five different areas in Basilicata (Southern Italy) classified according to 33 chemical oil components and morphological traits. While all examined descriptors show no significant differences among cultivars, means and coefficients of variations have been highlighted. Principal component analysis has then been used to reduce the number of descriptors. Cultivars have been classified by cluster analysis into three groups. Following a discussion of cultivar group similarities, results suggest that an ‘a priori’ classification of cultivars according to growing area does not strictly correspond to phenotypic grouping. From the spatial distribution of cultivars, however, it has been possible to identify ‘superior’ genotypes in terms of olive oil composition.

Keywords

chemical oil componentsdiversityOlea europaea L.olive cultivarsmorphological traits
Type
Research Article
Information
Plant Genetic Resources , Volume 10 , Issue 2 , August 2012 , pp. 145 - 151
Copyright
Copyright © NIAB 2012

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