Genetic Gain for Wood Volume in Progeny Trial of Grevílea (Breeding Cycle 2) in Avaré, State of São Paulo

Detalhes bibliográficos
Autor(a) principal: Martins, Emerson Gonçalves
Data de Publicação: 2011
Outros Autores: Neves, Edinelson José Maciel, Sturion, José Alfredo, Aoki, Hideyo
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Florestal Brasileira (Online)
Texto Completo: https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/217
Resumo: Twenty and twenty three seed provenances of Grevillea robusta A. Cunn. were imported from Australia, in 1993 and 1994, respectively, by Embrapa Florestas. This genetic germoplasm was utilized for starting a breeding program in the states of Paraná, São Paulo and Mato Grosso do Sul. In 2002, twenty eight genotypes were selected in the Presidente Castelo Branco-PR district whose seeds were utilized for the installing second generation progenies test in Avaré-SP. Randomized blocks was the statistical design utilized, with linear plots of five plants, adjusted in a compass 3m x 3m, with 8 replications. Total height, DBH (diameter at the height of breast) were the characteristics considered in the volume evaluations. Estimation of variance components, genetic parameters selection and genetic was made by SELEGEN/REML/BLUP - model 1. The conclusions obtained were: a) genetic gains were superior of 85%, remaining 227 genotypes (18% from the total amount of trees) in the Seed Orchard; b) selecting the best 50 genotypes, the genetic gain would be superior from 185%, and c) the installation of clonal orchard with the selected genotypes would lead a better spatial distribution of the clones, what wouldn’t happen in seed production areas originated of progenies installed in a randomized blocks design. 
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spelling Genetic Gain for Wood Volume in Progeny Trial of Grevílea (Breeding Cycle 2) in Avaré, State of São PauloGanho Genético no Volume de Madeira de Progênies de Grevílea de Segunda Geração na Região de Avaré, São PauloGrevillea robustagrevíleapomar de sementesprocedênciasprogênies.Grevillea robustagrevíleaseed orchardprovenancesprogeniesBrazil.Twenty and twenty three seed provenances of Grevillea robusta A. Cunn. were imported from Australia, in 1993 and 1994, respectively, by Embrapa Florestas. This genetic germoplasm was utilized for starting a breeding program in the states of Paraná, São Paulo and Mato Grosso do Sul. In 2002, twenty eight genotypes were selected in the Presidente Castelo Branco-PR district whose seeds were utilized for the installing second generation progenies test in Avaré-SP. Randomized blocks was the statistical design utilized, with linear plots of five plants, adjusted in a compass 3m x 3m, with 8 replications. Total height, DBH (diameter at the height of breast) were the characteristics considered in the volume evaluations. Estimation of variance components, genetic parameters selection and genetic was made by SELEGEN/REML/BLUP - model 1. The conclusions obtained were: a) genetic gains were superior of 85%, remaining 227 genotypes (18% from the total amount of trees) in the Seed Orchard; b) selecting the best 50 genotypes, the genetic gain would be superior from 185%, and c) the installation of clonal orchard with the selected genotypes would lead a better spatial distribution of the clones, what wouldn’t happen in seed production areas originated of progenies installed in a randomized blocks design. A Embrapa Florestas importou da Austrália, em 1993, sementes de 20 procedências de grevílea (Grevillea robusta A. CUNN.) e, em 1994, 126 progênies oriundas de 23 procedências, daquele país. Com o material, foi desenvolvido um programa de melhoramento nos estados do Paraná, São Paulo e Mato Grosso do Sul. Em 2002, foram selecionadas 28 matrizes na área de produção de sementes de Presidente Castelo Branco, PR. Após a produção das mudas, as mesmas foram plantadas em agosto de 2003 no Município de Avaré,  SP, em um teste de segunda geração. O teste foi instalado em blocos ao acaso,  com parcelas lineares de cinco plantas, espaçamento de 3 m x 3 m e oito repetições. A partir de medições da altura total e DAP (diâmetro na altura do peito) no terceiro ano, calculou-se o volume cilíndrico de madeira com casca das plantas mensuradas e estimaram-se os componentes de variância e parâmetros genéticos pelo modelo 1 do SELEGEN – REML / BLUP para fins de seleção. As conclusões obtidas foram as seguintes: a) na transformação do teste em Pomar de Sementes por Mudas (PSM), o ganho genético em volume cilíndrico de madeira com casca é superior a 85 %, utilizando-se os 227 melhores indivíduos, com os maiores valores para volume que correspondem aproximadamente a 18 % do total testado, em relação à média do experimento; b) a seleção dos 50 melhores indivíduos com o propósito de instalar um pomar clonal de sementes proporciona um ganho genético superior a 185 % para volume cilíndrico de madeira com casca, e c) a instalação de um pomar clonal a partir dos indivíduos selecionados pode proporcionar melhor distribuição espacial dos clones, que pode favorecer a polinização em comparação com uma PSM oriunda de progênies instaladas no delineamento de blocos ao acaso. Embrapa Florestas2011-03-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/217Pesquisa Florestal Brasileira; n. 52 (2006): jan./jun.; 119Pesquisa Florestal Brasileira; No. 52 (2006): jan./jun.; 1191983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/217/168Martins, Emerson GonçalvesNeves, Edinelson José MacielSturion, José AlfredoAoki, Hideyoinfo:eu-repo/semantics/openAccess2021-03-19T21:48:10Zoai:pfb.cnpf.embrapa.br/pfb:article/217Revistahttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/PUBhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/oaipfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br1983-26051809-3647opendoar:2021-03-19T21:48:10Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Genetic Gain for Wood Volume in Progeny Trial of Grevílea (Breeding Cycle 2) in Avaré, State of São Paulo
Ganho Genético no Volume de Madeira de Progênies de Grevílea de Segunda Geração na Região de Avaré, São Paulo
title Genetic Gain for Wood Volume in Progeny Trial of Grevílea (Breeding Cycle 2) in Avaré, State of São Paulo
spellingShingle Genetic Gain for Wood Volume in Progeny Trial of Grevílea (Breeding Cycle 2) in Avaré, State of São Paulo
Martins, Emerson Gonçalves
Grevillea robusta
grevílea
pomar de sementes
procedências
progênies.
Grevillea robusta
grevílea
seed orchard
provenances
progenies
Brazil.
title_short Genetic Gain for Wood Volume in Progeny Trial of Grevílea (Breeding Cycle 2) in Avaré, State of São Paulo
title_full Genetic Gain for Wood Volume in Progeny Trial of Grevílea (Breeding Cycle 2) in Avaré, State of São Paulo
title_fullStr Genetic Gain for Wood Volume in Progeny Trial of Grevílea (Breeding Cycle 2) in Avaré, State of São Paulo
title_full_unstemmed Genetic Gain for Wood Volume in Progeny Trial of Grevílea (Breeding Cycle 2) in Avaré, State of São Paulo
title_sort Genetic Gain for Wood Volume in Progeny Trial of Grevílea (Breeding Cycle 2) in Avaré, State of São Paulo
author Martins, Emerson Gonçalves
author_facet Martins, Emerson Gonçalves
Neves, Edinelson José Maciel
Sturion, José Alfredo
Aoki, Hideyo
author_role author
author2 Neves, Edinelson José Maciel
Sturion, José Alfredo
Aoki, Hideyo
author2_role author
author
author
dc.contributor.author.fl_str_mv Martins, Emerson Gonçalves
Neves, Edinelson José Maciel
Sturion, José Alfredo
Aoki, Hideyo
dc.subject.por.fl_str_mv Grevillea robusta
grevílea
pomar de sementes
procedências
progênies.
Grevillea robusta
grevílea
seed orchard
provenances
progenies
Brazil.
topic Grevillea robusta
grevílea
pomar de sementes
procedências
progênies.
Grevillea robusta
grevílea
seed orchard
provenances
progenies
Brazil.
description Twenty and twenty three seed provenances of Grevillea robusta A. Cunn. were imported from Australia, in 1993 and 1994, respectively, by Embrapa Florestas. This genetic germoplasm was utilized for starting a breeding program in the states of Paraná, São Paulo and Mato Grosso do Sul. In 2002, twenty eight genotypes were selected in the Presidente Castelo Branco-PR district whose seeds were utilized for the installing second generation progenies test in Avaré-SP. Randomized blocks was the statistical design utilized, with linear plots of five plants, adjusted in a compass 3m x 3m, with 8 replications. Total height, DBH (diameter at the height of breast) were the characteristics considered in the volume evaluations. Estimation of variance components, genetic parameters selection and genetic was made by SELEGEN/REML/BLUP - model 1. The conclusions obtained were: a) genetic gains were superior of 85%, remaining 227 genotypes (18% from the total amount of trees) in the Seed Orchard; b) selecting the best 50 genotypes, the genetic gain would be superior from 185%, and c) the installation of clonal orchard with the selected genotypes would lead a better spatial distribution of the clones, what wouldn’t happen in seed production areas originated of progenies installed in a randomized blocks design. 
publishDate 2011
dc.date.none.fl_str_mv 2011-03-08
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/217
url https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/217
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/217/168
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Embrapa Florestas
publisher.none.fl_str_mv Embrapa Florestas
dc.source.none.fl_str_mv Pesquisa Florestal Brasileira; n. 52 (2006): jan./jun.; 119
Pesquisa Florestal Brasileira; No. 52 (2006): jan./jun.; 119
1983-2605
1809-3647
reponame:Pesquisa Florestal Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Florestal Brasileira (Online)
collection Pesquisa Florestal Brasileira (Online)
repository.name.fl_str_mv Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br
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