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Artículo

Contrasting patterns of fatty acid composition and oil accumulation during fruit growth in several olive varieties and locations in a non-Mediterranean region

Rondanini, Deborah PaolaIcon ; Castro, Diego NicolasIcon ; Searles, Peter StoughtonIcon ; Rousseaux, Maria CeciliaIcon
Fecha de publicación: 01/2014
Editorial: Elsevier Science
Revista: European Journal of Agronomy
ISSN: 1161-0301
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Horticultura, Viticultura

Resumen

Olive growing has expanded considerably in the last few decades outside of the Mediterranean Basin to non-traditional regions in the Southern Hemisphere. When growing olive genotypes (i.e., varieties) outside of their area of origin, the importance of environmental factors such as temperature and genotype × environment interactions in determining olive oil production and oil quality has been suggested. In several Mediterranean varieties and one South American variety, we assessed the dynamics of fruit growth and oil accumulation along with the evolution of fatty acid composition at multiple locations over two growing seasons. Oleic acid content (%), the principal fatty acid present in olive oil, showed four contrasting patterns during fruit growth when modeled against thermal time from flowering using linear and bilinear regressions: (1) a sharp linear decrease for the varieties ?Arauco? and ?Arbequina?; (2) a plateau followed by a late linear decrease of moderate slope for ?Barnea? and ?Manzanilla Fina?; (3) a slow linear decrease for ?Frantoio?; and (4) no decrease in ?Coratina?. Linoleic acid (%) showed linear increases in ?Arauco? and ?Arbequina? that appear to be inversely related to the decreases in oleic acid, while bilinear patterns were found for many other varieties. Both the rates of fruit growth and of oil accumulation were more important in determining maximum fruit dry weight and oil concentration (%), respectively, than duration when expressed on a thermal time basis. Temperature during oil synthesis was negatively related to final oil concentration. Experiments under controlled conditions would greatly contribute to our understanding of how fruit growth as well as oil quantity and quality are influenced by environmental factors.
Palabras clave: Fatty Acid , Fruit Growth , Olea Europaea L. , Oil Concentration , Temperature , Virgin Olive Oil
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)
Identificadores
URI: http://hdl.handle.net/11336/12100
URL: http://www.sciencedirect.com/science/article/pii/S1161030113001135
DOI: http://dx.doi.org/10.1016/j.eja.2013.09.002
Colecciones
Articulos(CRILAR)
Articulos de CENTRO REGIONAL DE INV. CIENTIFICAS Y TRANSFERENCIA TECNOLOGICA DE ANILLACO
Articulos(OCA PQUE. CENTENARIO)
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA PQUE. CENTENARIO
Citación
Rondanini, Deborah Paola; Castro, Diego Nicolas; Searles, Peter Stoughton; Rousseaux, Maria Cecilia; Contrasting patterns of fatty acid composition and oil accumulation during fruit growth in several olive varieties and locations in a non-Mediterranean region; Elsevier Science; European Journal of Agronomy; 52; Part B; 1-2014; 237-246
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