Efeito do desbaste seletivo sobre a divergência genética em progênies de Pinus caribaea Morelet var. bahamensis

Detalhes bibliográficos
Autor(a) principal: Missio, Robson Fernando
Data de Publicação: 2007
Outros Autores: De Moraes, Mario Luiz Teixeira [UNESP], Dos Santos Dias, Luiz Antonio
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://www.ipef.br/publicacoes/scientia/nr73/cap03.pdf
http://hdl.handle.net/11449/69568
Resumo: The objective of this work was to study the effect of selective thinning on the genetic divergence in progenies of Pinus caribaea var. bahamensis, aiming to identify the most productive and divergent progenies for the use of improvement program. The test of progenies containing 119 progenies and two commercial controls were planted in March 1990, using 11 × 11 square lattice design, sextuple, partially balanced, disposed in lineal plots with six trees in the spacing of 3,0 × 3,0m. 13 years after planting thinning was realized (selection for DBH), with 50% selection intensity based on Multi-effect index, leaving three trees per plot in all the experiment. The evaluations were done at four situations: A (before the thinning); B (thinned trees); C (remaining trees after thinning) and D (one year after thinning). The analyzed traits were: height, diameter at breast height (DBH), volume, form of stem and wood density. The genetic divergence among the progenies was studied with aid of the canonical variables and of clustering of Tocher method, using the generalized distance matrix of Mahalanobis (D2) as estimate of the genetic similarity. The progenies were grouped in four groups in situation A, fourteen in the situation B, two in the situation C and three in the situation D. The selective thinning of the trees within of the progenies caused a change in the genetic divergence among the progenies, genetically homogenizing the progenies, as demonstrated by the generalized distances of Mahalanobis, clustering of Tocher' and canonical variables methods. The thinning made possible a high uniformity in respect to the relative contribution of the traits for the total genetic divergence. The techniques of clustering were efficient to identify groups of divergent progenies for the use hybridization and little divergent progenies for the use in backcross program.
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spelling Efeito do desbaste seletivo sobre a divergência genética em progênies de Pinus caribaea Morelet var. bahamensisEffect of selective thinning on the genetic divergence in Pinus caribaea Morelet var. bahamensis progeniesCanonical variablesGeneral distance of Mahalanobis'Genetic similarityTocher' clusteringForestryHomogenization methodNumerical methodsWoodPlants (botany)HomogenizationPinus CaribaeaProgenyThinningTreesVariablesThe objective of this work was to study the effect of selective thinning on the genetic divergence in progenies of Pinus caribaea var. bahamensis, aiming to identify the most productive and divergent progenies for the use of improvement program. The test of progenies containing 119 progenies and two commercial controls were planted in March 1990, using 11 × 11 square lattice design, sextuple, partially balanced, disposed in lineal plots with six trees in the spacing of 3,0 × 3,0m. 13 years after planting thinning was realized (selection for DBH), with 50% selection intensity based on Multi-effect index, leaving three trees per plot in all the experiment. The evaluations were done at four situations: A (before the thinning); B (thinned trees); C (remaining trees after thinning) and D (one year after thinning). The analyzed traits were: height, diameter at breast height (DBH), volume, form of stem and wood density. The genetic divergence among the progenies was studied with aid of the canonical variables and of clustering of Tocher method, using the generalized distance matrix of Mahalanobis (D2) as estimate of the genetic similarity. The progenies were grouped in four groups in situation A, fourteen in the situation B, two in the situation C and three in the situation D. The selective thinning of the trees within of the progenies caused a change in the genetic divergence among the progenies, genetically homogenizing the progenies, as demonstrated by the generalized distances of Mahalanobis, clustering of Tocher' and canonical variables methods. The thinning made possible a high uniformity in respect to the relative contribution of the traits for the total genetic divergence. The techniques of clustering were efficient to identify groups of divergent progenies for the use hybridization and little divergent progenies for the use in backcross program.Genética e Melhoramento Universidade Federal de Viçosa, Viçosa, MG - 36570-000Departamento de Fitotecnia, Tecnologia de Alimentes e Sócio- economia Faculdade de Engenharia Universidade Estadual Paulista, Caixa Postal 31, Ilha Solteira, SP - 15385-000Departamento de Fitotecnia Universidade Federal de Viçosa, Viçosa, MG - 36570-000Departamento de Fitotecnia, Tecnologia de Alimentes e Sócio- economia Faculdade de Engenharia Universidade Estadual Paulista, Caixa Postal 31, Ilha Solteira, SP - 15385-000Universidade Federal de Viçosa (UFV)Universidade Estadual Paulista (Unesp)Missio, Robson FernandoDe Moraes, Mario Luiz Teixeira [UNESP]Dos Santos Dias, Luiz Antonio2014-05-27T11:22:25Z2014-05-27T11:22:25Z2007-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article27-36application/pdfhttp://www.ipef.br/publicacoes/scientia/nr73/cap03.pdfScientia Forestalis/Forest Sciences, n. 73, p. 27-36, 2007.1413-9324http://hdl.handle.net/11449/695682-s2.0-342471405522-s2.0-34247140552.pdf9339164677717394Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporScientia Forestalis/Forest Sciences0.5000,495info:eu-repo/semantics/openAccess2024-01-18T06:32:50Zoai:repositorio.unesp.br:11449/69568Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-01-18T06:32:50Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Efeito do desbaste seletivo sobre a divergência genética em progênies de Pinus caribaea Morelet var. bahamensis
Effect of selective thinning on the genetic divergence in Pinus caribaea Morelet var. bahamensis progenies
title Efeito do desbaste seletivo sobre a divergência genética em progênies de Pinus caribaea Morelet var. bahamensis
spellingShingle Efeito do desbaste seletivo sobre a divergência genética em progênies de Pinus caribaea Morelet var. bahamensis
Missio, Robson Fernando
Canonical variables
General distance of Mahalanobis'
Genetic similarity
Tocher' clustering
Forestry
Homogenization method
Numerical methods
Wood
Plants (botany)
Homogenization
Pinus Caribaea
Progeny
Thinning
Trees
Variables
title_short Efeito do desbaste seletivo sobre a divergência genética em progênies de Pinus caribaea Morelet var. bahamensis
title_full Efeito do desbaste seletivo sobre a divergência genética em progênies de Pinus caribaea Morelet var. bahamensis
title_fullStr Efeito do desbaste seletivo sobre a divergência genética em progênies de Pinus caribaea Morelet var. bahamensis
title_full_unstemmed Efeito do desbaste seletivo sobre a divergência genética em progênies de Pinus caribaea Morelet var. bahamensis
title_sort Efeito do desbaste seletivo sobre a divergência genética em progênies de Pinus caribaea Morelet var. bahamensis
author Missio, Robson Fernando
author_facet Missio, Robson Fernando
De Moraes, Mario Luiz Teixeira [UNESP]
Dos Santos Dias, Luiz Antonio
author_role author
author2 De Moraes, Mario Luiz Teixeira [UNESP]
Dos Santos Dias, Luiz Antonio
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Federal de Viçosa (UFV)
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Missio, Robson Fernando
De Moraes, Mario Luiz Teixeira [UNESP]
Dos Santos Dias, Luiz Antonio
dc.subject.por.fl_str_mv Canonical variables
General distance of Mahalanobis'
Genetic similarity
Tocher' clustering
Forestry
Homogenization method
Numerical methods
Wood
Plants (botany)
Homogenization
Pinus Caribaea
Progeny
Thinning
Trees
Variables
topic Canonical variables
General distance of Mahalanobis'
Genetic similarity
Tocher' clustering
Forestry
Homogenization method
Numerical methods
Wood
Plants (botany)
Homogenization
Pinus Caribaea
Progeny
Thinning
Trees
Variables
description The objective of this work was to study the effect of selective thinning on the genetic divergence in progenies of Pinus caribaea var. bahamensis, aiming to identify the most productive and divergent progenies for the use of improvement program. The test of progenies containing 119 progenies and two commercial controls were planted in March 1990, using 11 × 11 square lattice design, sextuple, partially balanced, disposed in lineal plots with six trees in the spacing of 3,0 × 3,0m. 13 years after planting thinning was realized (selection for DBH), with 50% selection intensity based on Multi-effect index, leaving three trees per plot in all the experiment. The evaluations were done at four situations: A (before the thinning); B (thinned trees); C (remaining trees after thinning) and D (one year after thinning). The analyzed traits were: height, diameter at breast height (DBH), volume, form of stem and wood density. The genetic divergence among the progenies was studied with aid of the canonical variables and of clustering of Tocher method, using the generalized distance matrix of Mahalanobis (D2) as estimate of the genetic similarity. The progenies were grouped in four groups in situation A, fourteen in the situation B, two in the situation C and three in the situation D. The selective thinning of the trees within of the progenies caused a change in the genetic divergence among the progenies, genetically homogenizing the progenies, as demonstrated by the generalized distances of Mahalanobis, clustering of Tocher' and canonical variables methods. The thinning made possible a high uniformity in respect to the relative contribution of the traits for the total genetic divergence. The techniques of clustering were efficient to identify groups of divergent progenies for the use hybridization and little divergent progenies for the use in backcross program.
publishDate 2007
dc.date.none.fl_str_mv 2007-03-01
2014-05-27T11:22:25Z
2014-05-27T11:22:25Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.ipef.br/publicacoes/scientia/nr73/cap03.pdf
Scientia Forestalis/Forest Sciences, n. 73, p. 27-36, 2007.
1413-9324
http://hdl.handle.net/11449/69568
2-s2.0-34247140552
2-s2.0-34247140552.pdf
9339164677717394
url http://www.ipef.br/publicacoes/scientia/nr73/cap03.pdf
http://hdl.handle.net/11449/69568
identifier_str_mv Scientia Forestalis/Forest Sciences, n. 73, p. 27-36, 2007.
1413-9324
2-s2.0-34247140552
2-s2.0-34247140552.pdf
9339164677717394
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Scientia Forestalis/Forest Sciences
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0,495
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 27-36
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
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