Genetic Gain for Wood Volume in Progeny Trial of Grevílea (Breeding Cycle 2) in Avaré, State of São Paulo
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , |
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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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 |
_version_ |
1783370932650246144 |