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dc.contributor.authorBattie-Laclau, Patricia-
dc.contributor.authorLaclau, Jean-Paul-
dc.contributor.authorPiccolo, Marisa de Cassia-
dc.contributor.authorArenque, Bruna Cersózimo-
dc.contributor.authorBeri, Constance-
dc.contributor.authorMietton, Lauriane-
dc.contributor.authorMuniz, Marta R. Almeida-
dc.contributor.authorJordan-Meille, Lionel-
dc.contributor.authorBuckeridge, Marcos Silveira-
dc.contributor.authorNouvellon, Yann-
dc.contributor.authorRanger, Jacques-
dc.contributor.authorBouillet, Jean-Pierre-
dc.identifier.citationPlant and Soil, v. 371, n. 1-2, p. 19-35, 2013.-
dc.description.abstractBackground and Aims: Recent studies showed a positive tree response to Na addition in K-depleted tropical soils. Our study aimed to gain insight into the effects of K and Na fertilizations on leaf area components for a widely planted tree species. Methods: Leaf expansion rates, as well as nutrient, polyol and soluble sugar concentrations, were measured from emergence to abscission of tagged leaves in 1-year-old Eucalyptus grandis plantations. Leaf cell size and water status parameters were compared 1 and 2 months after leaf emergence in plots with KCl application (+K), NaCl application (+Na) and control plots (C). Results: K and Na applications enhanced tree leaf area by increasing both leaf longevity and the mean area of individual leaves. Higher cell turgor in treatments +K and +Na than in the C treatment resulting from higher concentrations of osmotica contributed to increasing both palisade cell diameters and the size of fully expanded leaves. Conclusions: Intermediate total tree leaf area in treatment +Na compared to treatments C and +K might result from the capacity of Na to substitute K in osmoregulatory functions, whereas it seemed unable to accomplish other important K functions that contribute to delaying leaf senescence. © 2013 Springer Science+Business Media Dordrecht.en
dc.subjectCell size-
dc.subjectCell turgor-
dc.subjectLeaf area-
dc.subjectLeaf lifespan-
dc.subjectLeaf longevity-
dc.subjectOsmotic potential-
dc.subjectSoluble sugars-
dc.titleInfluence of potassium and sodium nutrition on leaf area components in Eucalyptus grandis treesen
dc.contributor.institutionUniversidade de São Paulo (USP)-
dc.contributor.institutionCIRAD, UMR Eco at Sols-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionEcole Supérieure d'Agriculture d'Angers-
dc.contributor.institutionUniversité de Bordeaux, UMR 1220 TCEM-
dc.contributor.institutionINRA, UR Biogéochimie des Ecosystèmes Forestiers-
dc.description.affiliationUniversidade de São Paulo, CENA, 13400-970 Piracicaba, SP-
dc.description.affiliationCIRAD, UMR Eco at Sols, 2 place Viala, 34060 Montpellier-
dc.description.affiliationUNESP, Natural Resources Department, Botucatu, SP, 18610-307-
dc.description.affiliationEcology Department, IB Universidade de São Paulo, 05508-900 São Paulo, SP-
dc.description.affiliationEcole Supérieure d'Agriculture d'Angers, 49 007 Angers Cedex 01-
dc.description.affiliationAgroParisTech, 16 rue Claude Bernard, 75231 Paris Cedex 05-
dc.description.affiliationESALQ, Biological Science Department Universidade de São Paulo, 13418-900 Piracicaba, SP-
dc.description.affiliationUniversité de Bordeaux, UMR 1220 TCEM, 33140 Villenave d'Ornon-
dc.description.affiliationAtmospheric Science Department, IAG, CEP Universidade de São Paulo, 05508-900 São Paulo, SP-
dc.description.affiliationINRA, UR Biogéochimie des Ecosystèmes Forestiers, 54280 Champenoux-
dc.description.affiliationForest Science Department Universidade de São Paulo, ESALQ, 13418-900 Piracicaba, SP-
dc.description.affiliationUnespUNESP, Natural Resources Department, Botucatu, SP, 18610-307-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofPlant and Soil-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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