Efeito do desbaste seletivo sobre a divergência genética em progênies de Pinus caribaea Morelet var. bahamensis
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , |
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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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/openAccess2024-07-05T19:08:59Zoai:repositorio.unesp.br:11449/69568Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:22:31.758070Repositório 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 0.500 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) |
repository.mail.fl_str_mv |
|
_version_ |
1808129513354166272 |