Minimizing inter-genotypic competition effects to predict genetic values and selection in forestry genetic tests

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorPavan, Bruno Ettore
dc.creatorPaula, Rinaldo César de
dc.creatorPerecin, Dilermando
dc.creatorCandido, Liliam Silvia
dc.creatorScarpinati, Edimar Aparecido
dc.date2014-05-20T13:13:31Z
dc.date2014-05-20T13:13:31Z
dc.date2011-12-01
dc.date.accessioned2017-04-05T19:22:07Z
dc.date.available2017-04-05T19:22:07Z
dc.identifierScientia Agricola. São Paulo - Escola Superior de Agricultura Luiz de Queiroz, v. 68, n. 6, p. 671-678, 2011.
dc.identifier0103-9016
dc.identifierhttp://hdl.handle.net/11449/1282
dc.identifier10.1590/S0103-90162011000600011
dc.identifierS0103-90162011000600011
dc.identifierWOS:000298334200011
dc.identifierS0103-90162011000600011.pdf
dc.identifierhttp://dx.doi.org/10.1590/S0103-90162011000600011
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/851335
dc.descriptionThe effect of competition is an important source of variation in breeding experiments. This study aimed to compare the selection of plants of open-pollinated families of Eucalyptus with and without the use of competition covariables. Genetic values were determined for each family and tree and for the traits height, diameter at breast height and timber volume in a randomized block design, resulting in the variance components, genetic parameters, selection gains, effective size and selection coincidence, with and without the use of covariables. Intergenotypic competition is an important factor of environmental variation. The use of competition covariables generally reduces the estimates of variance components and influences genetic gains in the studied traits. Intergenotypic competition biases the selection of open-pollinated eucalypt progenies, and can result in an erroneous choice of superior genotypes; the inclusion of covariables in the model reduces this influence.
dc.languageeng
dc.publisherUniversidade de São Paulo (USP), Escola Superior de Agricultura Luiz de Queiroz (ESALQ)
dc.relationScientia Agricola
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectEucalyptus spp
dc.subjectcovariable analysis
dc.subjectselection gains
dc.titleMinimizing inter-genotypic competition effects to predict genetic values and selection in forestry genetic tests
dc.typeOtro


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