Experimental alternatives for evaluation of progenies and clones in eucalyptus breeding programs
Autor(a) principal: | |
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Data de Publicação: | 2003 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Árvore (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622003000400002 |
Resumo: | The feasibility of using augmented block designs and spatial analysis methods for early stage selection in eucalyptus breeding programs was tested. A total of 113 half-sib progenies of Eucalyptus urophylla and eight clones were evaluated in an 11 x 11 triple lattice experiment at two locations: Posto da Mata (Bahia, Brazil) and São Mateus (Minas Gerais, Brazil). Four checks were randomly allocated within each block. Plots consisted of 15 m long rows containing 6 plants spaced 3 m apart. The girth at breast height (cm/plant) was evaluated at 19 and 26 months of age. Variance analyses were performed according to the following methods: lattice design, randomized complete block design, augmented block design, Papadakis method, moving means method, and check plots. Comparisons among different methods were based on the magnitude of experimental errors and precision of the estimates of genetic and phenotypic parameters. General results indicated that augmented block design is useful to evaluate progenies and clones in early selection in eucalyptus breeding programs using moderate and low selection intensities. However, this design is not suitable for estimating genetic and phenotypic parameters due to its low precision. Check plots, nearest neighbour, Papadakis (1937), and moving means methods were efficient in removing the heterogeneity within blocks. These efficiencies were compared to that in lattice analysis for estimation of genetic and phenotypic parameters. |
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Experimental alternatives for evaluation of progenies and clones in eucalyptus breeding programsEucalyptus urophyllaaugmented blocklatticerandomized complete blocknearest neighbourPapadakismoving meanscheck plotsgenetic and phenotypic parametersThe feasibility of using augmented block designs and spatial analysis methods for early stage selection in eucalyptus breeding programs was tested. A total of 113 half-sib progenies of Eucalyptus urophylla and eight clones were evaluated in an 11 x 11 triple lattice experiment at two locations: Posto da Mata (Bahia, Brazil) and São Mateus (Minas Gerais, Brazil). Four checks were randomly allocated within each block. Plots consisted of 15 m long rows containing 6 plants spaced 3 m apart. The girth at breast height (cm/plant) was evaluated at 19 and 26 months of age. Variance analyses were performed according to the following methods: lattice design, randomized complete block design, augmented block design, Papadakis method, moving means method, and check plots. Comparisons among different methods were based on the magnitude of experimental errors and precision of the estimates of genetic and phenotypic parameters. General results indicated that augmented block design is useful to evaluate progenies and clones in early selection in eucalyptus breeding programs using moderate and low selection intensities. However, this design is not suitable for estimating genetic and phenotypic parameters due to its low precision. Check plots, nearest neighbour, Papadakis (1937), and moving means methods were efficient in removing the heterogeneity within blocks. These efficiencies were compared to that in lattice analysis for estimation of genetic and phenotypic parameters.Sociedade de Investigações Florestais2003-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622003000400002Revista Árvore v.27 n.4 2003reponame:Revista Árvore (Online)instname:Universidade Federal de Viçosa (UFV)instacron:SIF10.1590/S0100-67622003000400002info:eu-repo/semantics/openAccessSouza,Elaine Aparecida deGeraldi,Isaias OlívioRamalho,Magno Antonio PattoBertolucci,Fernando de Lelis Garciaeng2003-12-23T00:00:00Zoai:scielo:S0100-67622003000400002Revistahttp://www.scielo.br/revistas/rarv/iaboutj.htmPUBhttps://old.scielo.br/oai/scielo-oai.php||r.arvore@ufv.br1806-90880100-6762opendoar:2003-12-23T00:00Revista Árvore (Online) - Universidade Federal de Viçosa (UFV)false |
dc.title.none.fl_str_mv |
Experimental alternatives for evaluation of progenies and clones in eucalyptus breeding programs |
title |
Experimental alternatives for evaluation of progenies and clones in eucalyptus breeding programs |
spellingShingle |
Experimental alternatives for evaluation of progenies and clones in eucalyptus breeding programs Souza,Elaine Aparecida de Eucalyptus urophylla augmented block lattice randomized complete block nearest neighbour Papadakis moving means check plots genetic and phenotypic parameters |
title_short |
Experimental alternatives for evaluation of progenies and clones in eucalyptus breeding programs |
title_full |
Experimental alternatives for evaluation of progenies and clones in eucalyptus breeding programs |
title_fullStr |
Experimental alternatives for evaluation of progenies and clones in eucalyptus breeding programs |
title_full_unstemmed |
Experimental alternatives for evaluation of progenies and clones in eucalyptus breeding programs |
title_sort |
Experimental alternatives for evaluation of progenies and clones in eucalyptus breeding programs |
author |
Souza,Elaine Aparecida de |
author_facet |
Souza,Elaine Aparecida de Geraldi,Isaias Olívio Ramalho,Magno Antonio Patto Bertolucci,Fernando de Lelis Garcia |
author_role |
author |
author2 |
Geraldi,Isaias Olívio Ramalho,Magno Antonio Patto Bertolucci,Fernando de Lelis Garcia |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Souza,Elaine Aparecida de Geraldi,Isaias Olívio Ramalho,Magno Antonio Patto Bertolucci,Fernando de Lelis Garcia |
dc.subject.por.fl_str_mv |
Eucalyptus urophylla augmented block lattice randomized complete block nearest neighbour Papadakis moving means check plots genetic and phenotypic parameters |
topic |
Eucalyptus urophylla augmented block lattice randomized complete block nearest neighbour Papadakis moving means check plots genetic and phenotypic parameters |
description |
The feasibility of using augmented block designs and spatial analysis methods for early stage selection in eucalyptus breeding programs was tested. A total of 113 half-sib progenies of Eucalyptus urophylla and eight clones were evaluated in an 11 x 11 triple lattice experiment at two locations: Posto da Mata (Bahia, Brazil) and São Mateus (Minas Gerais, Brazil). Four checks were randomly allocated within each block. Plots consisted of 15 m long rows containing 6 plants spaced 3 m apart. The girth at breast height (cm/plant) was evaluated at 19 and 26 months of age. Variance analyses were performed according to the following methods: lattice design, randomized complete block design, augmented block design, Papadakis method, moving means method, and check plots. Comparisons among different methods were based on the magnitude of experimental errors and precision of the estimates of genetic and phenotypic parameters. General results indicated that augmented block design is useful to evaluate progenies and clones in early selection in eucalyptus breeding programs using moderate and low selection intensities. However, this design is not suitable for estimating genetic and phenotypic parameters due to its low precision. Check plots, nearest neighbour, Papadakis (1937), and moving means methods were efficient in removing the heterogeneity within blocks. These efficiencies were compared to that in lattice analysis for estimation of genetic and phenotypic parameters. |
publishDate |
2003 |
dc.date.none.fl_str_mv |
2003-08-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622003000400002 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622003000400002 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0100-67622003000400002 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade de Investigações Florestais |
publisher.none.fl_str_mv |
Sociedade de Investigações Florestais |
dc.source.none.fl_str_mv |
Revista Árvore v.27 n.4 2003 reponame:Revista Árvore (Online) instname:Universidade Federal de Viçosa (UFV) instacron:SIF |
instname_str |
Universidade Federal de Viçosa (UFV) |
instacron_str |
SIF |
institution |
SIF |
reponame_str |
Revista Árvore (Online) |
collection |
Revista Árvore (Online) |
repository.name.fl_str_mv |
Revista Árvore (Online) - Universidade Federal de Viçosa (UFV) |
repository.mail.fl_str_mv |
||r.arvore@ufv.br |
_version_ |
1750317995592253440 |