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Discriminant analysis in the selection of groups of peach cultivars

dc.contributor.authorMelo, G. W.
dc.contributor.authorRozane, D. E. [UNESP]
dc.contributor.authorBrunetto, G.
dc.contributor.authorLattuada, D. S.
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionFederal University of Santa Maria
dc.contributor.institutionResearch Center Celeste Gobbato
dc.date.accessioned2022-04-28T19:26:53Z
dc.date.available2022-04-28T19:26:53Z
dc.date.issued2018-10-31
dc.description.abstractBrazil ranks 14th in the world in terms of peach and nectarine production. Of the nearly 211,000 tons total output, the state of Rio Grande do Sul produces 60% of the national production, while southern Brazil accounts for 75%. This indicates that adequate parameters are required to manage the nutritional status of all fruit trees, of which the peach tree is an important component, as well as the performance of long-term experiments under field conditions in several, but often restricted, numbers of cultivars. The nutritional parameters that have been established as adequate can be applied to other cultivars which reveal similar nutritional contents and equivalent demands. Besides productivity, 12 elements (N, P, K, Ca, Mg, S, Cu, Fe, Mn, Zn, Al and Na) were analyzed in leaf tissue samples in 144 commercially cultivated peach orchards in South Rio Grande do Sul, specifically the cultivars of Chimarrita, Chiripá, Delanona, Eragil, Fascínio, Kampai, Pialo, PS10711, PS-Tardia and São Barbosa. Group analysis employing the Wilks’ Lambda test (F=9.29; p<0.01) revealed differences among the groups. Nutrients like Cu, Zn, K, Mg, Ca and N were found to most significantly influence growth and formed the three main axes for distinguishing among the groups, whereas nutrients like S, P and Mn, showed the least contribution. The nutritional profiles of the peach cultivars can be categorized in homogeneous groups to benefit from the fertilizer trials. Cluster analysis can be instrumental in the diagnosis and nutrient management of peach trees.en
dc.description.affiliationEmpresa Brasileira de Pesquisa Agropecuária
dc.description.affiliationUniversidade Estadual Paulista “Júlio de Mesquita Filho”
dc.description.affiliationFederal University of Santa Maria
dc.description.affiliationResearch Center Celeste Gobbato
dc.description.affiliationUnespUniversidade Estadual Paulista “Júlio de Mesquita Filho”
dc.format.extent335-342
dc.identifierhttp://dx.doi.org/10.17660/ActaHortic.2018.1217.42
dc.identifier.citationActa Horticulturae, v. 1217, p. 335-342.
dc.identifier.doi10.17660/ActaHortic.2018.1217.42
dc.identifier.issn2406-6168
dc.identifier.issn0567-7572
dc.identifier.scopus2-s2.0-85057775082
dc.identifier.urihttp://hdl.handle.net/11449/221221
dc.language.isoeng
dc.relation.ispartofActa Horticulturae
dc.sourceScopus
dc.subjectCompositional nutrient
dc.subjectFruit
dc.subjectNutrition
dc.subjectPrunus persica
dc.titleDiscriminant analysis in the selection of groups of peach cultivarsen
dc.typeArtigo
dspace.entity.typePublication

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