Influence of potassium and sodium nutrition on leaf area components in Eucalyptus grandis trees

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorBattie-Laclau, Patricia
dc.creatorLaclau, Jean-Paul
dc.creatorPiccolo, Marisa de Cassia
dc.creatorArenque, Bruna Cersózimo
dc.creatorBeri, Constance
dc.creatorMietton, Lauriane
dc.creatorMuniz, Marta R. Almeida
dc.creatorJordan-Meille, Lionel
dc.creatorBuckeridge, Marcos Silveira
dc.creatorNouvellon, Yann
dc.creatorRanger, Jacques
dc.creatorBouillet, Jean-Pierre
dc.date2014-05-27T11:30:46Z
dc.date2016-10-25T18:54:34Z
dc.date2014-05-27T11:30:46Z
dc.date2016-10-25T18:54:34Z
dc.date2013-10-01
dc.date.accessioned2017-04-06T02:40:17Z
dc.date.available2017-04-06T02:40:17Z
dc.identifierPlant and Soil, v. 371, n. 1-2, p. 19-35, 2013.
dc.identifier0032-079X
dc.identifierhttp://hdl.handle.net/11449/76689
dc.identifierhttp://acervodigital.unesp.br/handle/11449/76689
dc.identifier10.1007/s11104-013-1663-7
dc.identifierWOS:000324882500003
dc.identifier2-s2.0-84884816917
dc.identifierhttp://dx.doi.org/10.1007/s11104-013-1663-7
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/897380
dc.descriptionBackground 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.
dc.languageeng
dc.relationPlant and Soil
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCell size
dc.subjectCell turgor
dc.subjectExpansion
dc.subjectK
dc.subjectLeaf area
dc.subjectLeaf lifespan
dc.subjectLeaf longevity
dc.subjectNa
dc.subjectNutrient
dc.subjectOsmotic potential
dc.subjectSoluble sugars
dc.titleInfluence of potassium and sodium nutrition on leaf area components in Eucalyptus grandis trees
dc.typeOtro


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