Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/45224
COMPARTIR / EXPORTAR:
logo share SHARE logo core CORE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE

Invitar a revisión por pares abierta
Título

Assessment of tolerance to NaCl salinity of five olive cultivars, based on growth characteristics and Na+ and Cl− exclusion mechanisms

AutorKchaoub, Haifa; Larbi, Ajmi CSIC; Gargouri, Kamel; Chaïeb, Mohamed; Morales Iribas, Fermín CSIC ORCID; Msallem, Monji
Palabras claveIon exclusion
Ion toxicity
Olea europea
Salinity tolerance
Fecha de publicaciónabr-2010
EditorElsevier
CitaciónKachaou H, Larbi A, Gargouri K, Chaieb M, Morales F, Msallem M. Assessment of tolerance to NaCl salinity of five olive cultivars, based on growth characteristics and Na+ and Cl− exclusion mechanisms.Scientia Horticulturae 124 (3): 306–315 (2010)
ResumenChanges caused by NaCl-induced salinity on several growth parameters and ions accumulation have been measured in five olive (Olea europaea L.) cultivars (‘Chemlali’, ‘Chetoui’, ‘Koroneiki’, ‘Arbequina I18’, and ‘Arbosana I43’) growing in a greenhouse in nutrient solution pot experiment. One-year-old plants were transplanted to sand–perlite (1:1) culture, and were irrigated with half-strength Hoagland nutrient solution containing NaCl at various levels (0.5, 50, 100 and 200 mM). Salinity induced significant decrease in growth parameters, but to a different extent in each cultivar. Leaf growth and total leaf area per plant were significantly affected by all salinity treatments in all studied cultivars, being ‘Arbequina I18’ the most sensitive cultivar. Leaf drop phenomenon was observed from 60 days after salt application at high salinity treatments, mainly in Arbequina I18. Contrary to leaf area, leaf thickness increased progressively during the experiment. ‘Chemlali’ developed thicker leaves at the two highest salinity treatments when compared to the other cultivars. Na+ and Cl− concentrations were higher in roots than in shoots and leaves in most of the cultivars investigated. The effectiveness of Na+ exclusion mechanism in the roots differed significantly among studied cultivars, working effectively in ‘Chemlali’ (by inhibiting translocation of Na+ to the aerial part) and being much less efficient in ‘Arbequina I18’. Furthermore, leaf abscission can be considered as an additional tolerance mechanism of olive cultivars allowing the elimination of leaves that had accumulated Na+ and Cl− ions. Tolerance to salinity stress was as follows: ‘Chemlali’ > ‘Chetoui’ > ‘Arbosana I43’ > ‘Koroneiki’ > ‘Arbequina I18’. This order of salt tolerance was indicated by lower reduction in plant growth parameters (shoot elongation, trunk diameter, total plant dry weight, internodes length, and total leaf area), the increase of leaf thickness, and by the effectiveness of the exclusion mechanism of Na+ and Cl− in the root system.
Descripción10 Pags., 2 Tabls., 6 Figs.
Versión del editorhttp://dx.doi.org/10.1016/j.scienta.2010.01.007
URIhttp://hdl.handle.net/10261/45224
DOI10.1016/j.scienta.2010.01.007
ISSN0304-4238
Aparece en las colecciones: (EEAD) Artículos

Ficheros en este ítem:
Fichero Descripción Tamaño Formato
mod vers.aut pend.pdf20,83 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo

CORE Recommender

SCOPUSTM   
Citations

73
checked on 14-mar-2024

WEB OF SCIENCETM
Citations

64
checked on 22-feb-2024

Page view(s)

554
checked on 18-mar-2024

Download(s)

291
checked on 18-mar-2024

Google ScholarTM

Check

Altmetric

Altmetric


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.