Response of two olive cultivars to salt stress and potassium supplement

dc.contributor.author	Chartzoulakis, K	en
dc.contributor.author	Psarras, G	en
dc.contributor.author	Vemmos, S	en
dc.contributor.author	Loupassaki, M	en
dc.contributor.author	Bertaki, M	en
dc.date.accessioned	2014-06-06T06:47:13Z
dc.date.available	2014-06-06T06:47:13Z
dc.date.issued	2006	en
dc.identifier.issn	01904167	en
dc.identifier.uri	http://dx.doi.org/10.1080/01904160600932682	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/3460
dc.subject	Carbohydrates	en
dc.subject	Olive	en
dc.subject	Photosynthesis	en
dc.subject	Potassium	en
dc.subject	Salinity	en
dc.subject	Water relations	en
dc.subject.other	Olea europaea	en
dc.title	Response of two olive cultivars to salt stress and potassium supplement	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/01904160600932682	en
heal.publicationDate	2006	en
heal.abstract	The effects of saline water containing 0, 50, 100, and 150 mM sodium chloride (NaCl), and 100 mM NaCl + 100 mM potassium (K) on photosynthesis, water relations, and ion and carbohydrate content of olive (Olea europaea L.) cultivars 'Koroneiki' and 'Mastoidis' were studied on five-year-old trees. Salinity increased sodium (Na+) and chloride (Cl-) in tissues of both cultivars, but more so in 'Koroneiki' than in 'Mastoidis.' Salt-toxicity symptoms were observed at 100 and 150 mM, but not in plants receiving extra K. In salt-stressed plants, leaf water potential declined, whereas turgor potential remained positive due to a rapid decrease in osmotic potential. Salinity increased mannitol content up to 41.3% in 'Mastoidis' and 15.8% in 'Koroneiki', but reduced starch content in leaves. Photosynthetic rates fell significantly with increasing salinity in both cultivars, but more so in 'Koroneiki' than in 'Mastoidis'. Potassium supplements reduced the concentration of Na+ and increased the concentrations of K+ in leaves, but decreased photosynthesis. Copyright © Taylor & Francis Group, LLC.	en
heal.journalName	Journal of Plant Nutrition	en
dc.identifier.issue	11	en
dc.identifier.volume	29	en
dc.identifier.doi	10.1080/01904160600932682	en
dc.identifier.spage	2063	en
dc.identifier.epage	2078	en