Pre-breeding of Imbuya Populations

Detalhes bibliográficos
Autor(a) principal: Kalil, Antonio Nascim
Data de Publicação: 2010
Outros Autores: Lopes, Alexandre Jacobus, Marzollo, Luiz Gustavo, Bortoleto, André Santos, Hirano, Elcio, Sturion, José Alfredo
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/56
Resumo: Imbuya (Ocotea porosa Nees et Martius ex. Nees, Lauraceae) is a species under extinction of the Mixed Ombrophylous Forest, whose wood owns high economic value. The objective of this work was to discuss precocious individual genetic selection utilizying Selegen REML/BLUP software in germoplasm of Colombo, PR, Canoinhas and Caçador, SC, populations. Results showed that 1182 selected genotypes (42,9 %) were from Colombo, 1004 (36,4 %) genotypes were from Canoinhas and 572 (20,7 %) from Caçador, totalyzing 2758 selected genotypes. Estimates of variance components showed that additive genetic variance within provenances (Va=6,62) is higher than variance among provenances (Vproc.=1,33), indicating the possibility of predominance of alogamy in the studied populations. Individual heritability in narrow sense in the block (h2a), that is, from additive effects,was 0.29 ± 0.04. Individual genetic variance coefficient (CVgi) was 18,72. Ranking of 50 superior genotypes showed a genetic gain from 5.66 cm to 8.72 cm, with estimates of averages in the next  generation varying from 19.04 cm to 22.45 cm (increment ranging from 41.9 % to 63.46 %). Colombo provenance contributed with 56 % of 50 superior genotypes, Canoinhas with 40 % and Caçador with 4%.
id EMBRAPA-5_9f5b0fb3ac1071d45a7f94416b1cdc94
oai_identifier_str oai:pfb.cnpf.embrapa.br/pfb:article/56
network_acronym_str EMBRAPA-5
network_name_str Pesquisa Florestal Brasileira (Online)
repository_id_str
spelling Pre-breeding of Imbuya PopulationsPré-melhoramento de Populações de ImbuiaProcedênciaprogênieganho genético.Provenanceprogeniegenetic gain.Imbuya (Ocotea porosa Nees et Martius ex. Nees, Lauraceae) is a species under extinction of the Mixed Ombrophylous Forest, whose wood owns high economic value. The objective of this work was to discuss precocious individual genetic selection utilizying Selegen REML/BLUP software in germoplasm of Colombo, PR, Canoinhas and Caçador, SC, populations. Results showed that 1182 selected genotypes (42,9 %) were from Colombo, 1004 (36,4 %) genotypes were from Canoinhas and 572 (20,7 %) from Caçador, totalyzing 2758 selected genotypes. Estimates of variance components showed that additive genetic variance within provenances (Va=6,62) is higher than variance among provenances (Vproc.=1,33), indicating the possibility of predominance of alogamy in the studied populations. Individual heritability in narrow sense in the block (h2a), that is, from additive effects,was 0.29 ± 0.04. Individual genetic variance coefficient (CVgi) was 18,72. Ranking of 50 superior genotypes showed a genetic gain from 5.66 cm to 8.72 cm, with estimates of averages in the next  generation varying from 19.04 cm to 22.45 cm (increment ranging from 41.9 % to 63.46 %). Colombo provenance contributed with 56 % of 50 superior genotypes, Canoinhas with 40 % and Caçador with 4%.A imbuia (Ocotea porosa) é uma espécie em extinção da Floresta Ombrófila Mista, cuja madeira possui altovalor econômico. O objetivo deste trabalho foi efetuar a seleção genética precoce individual por meio do programaSelegen REML/BLUP em germoplasma oriundo das populações de Colombo, PR, Canoinhas e Caçador, SC. Osresultados mostraram que, de um total de 4.888 genótipos, 1.182 genótipos selecionados (42,9 %) eram de Colombo,1.004 (36,4 %) de Canoinhas e 572 (20,7 %) de Caçador, num total de 2.758 genótipos selecionados. As estimativasdos componentes de variância obtidas para altura de mudas mostraram que a variância genética aditiva dentro deprocedências (Va=6,62) é maior que a variância entre procedências (Vproc.=1,33), indicando a possibilidade depredominância de alogamia nas populações estudadas. A herdabilidade individual no sentido restrito no bloco (h2a),ou seja, dos efeitos aditivos, foi de 0,29 ± 04. O coeficiente de variação genético individual (Cvgi %) foi de 18,72 %. Aclassificação dos 50 melhores genótipos mostrou ganho de 5,66 cm a 8,72 cm, com estimativa de médias da geraçãoseguinte variando de 19,04 cm a 22,45 cm (de 41,19 % a 63,46 % de superioridade). A procedência Colombo contribuiucom 56 % dos 50 melhores genótipos, Canoinhas com 40 % e Caçador com apenas 4 %.Embrapa Florestas2010-03-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/56Pesquisa Florestal Brasileira; n. 57 (2008): jul./dez.; 61Pesquisa Florestal Brasileira; No. 57 (2008): jul./dez.; 611983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/56/57Kalil, Antonio NascimLopes, Alexandre JacobusMarzollo, Luiz GustavoBortoleto, André SantosHirano, ElcioSturion, José Alfredoinfo:eu-repo/semantics/openAccess2017-04-28T14:07:37Zoai:pfb.cnpf.embrapa.br/pfb:article/56Revistahttps://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:2017-04-28T14:07:37Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Pre-breeding of Imbuya Populations
Pré-melhoramento de Populações de Imbuia
title Pre-breeding of Imbuya Populations
spellingShingle Pre-breeding of Imbuya Populations
Kalil, Antonio Nascim
Procedência
progênie
ganho genético.
Provenance
progenie
genetic gain.
title_short Pre-breeding of Imbuya Populations
title_full Pre-breeding of Imbuya Populations
title_fullStr Pre-breeding of Imbuya Populations
title_full_unstemmed Pre-breeding of Imbuya Populations
title_sort Pre-breeding of Imbuya Populations
author Kalil, Antonio Nascim
author_facet Kalil, Antonio Nascim
Lopes, Alexandre Jacobus
Marzollo, Luiz Gustavo
Bortoleto, André Santos
Hirano, Elcio
Sturion, José Alfredo
author_role author
author2 Lopes, Alexandre Jacobus
Marzollo, Luiz Gustavo
Bortoleto, André Santos
Hirano, Elcio
Sturion, José Alfredo
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Kalil, Antonio Nascim
Lopes, Alexandre Jacobus
Marzollo, Luiz Gustavo
Bortoleto, André Santos
Hirano, Elcio
Sturion, José Alfredo
dc.subject.por.fl_str_mv Procedência
progênie
ganho genético.
Provenance
progenie
genetic gain.
topic Procedência
progênie
ganho genético.
Provenance
progenie
genetic gain.
description Imbuya (Ocotea porosa Nees et Martius ex. Nees, Lauraceae) is a species under extinction of the Mixed Ombrophylous Forest, whose wood owns high economic value. The objective of this work was to discuss precocious individual genetic selection utilizying Selegen REML/BLUP software in germoplasm of Colombo, PR, Canoinhas and Caçador, SC, populations. Results showed that 1182 selected genotypes (42,9 %) were from Colombo, 1004 (36,4 %) genotypes were from Canoinhas and 572 (20,7 %) from Caçador, totalyzing 2758 selected genotypes. Estimates of variance components showed that additive genetic variance within provenances (Va=6,62) is higher than variance among provenances (Vproc.=1,33), indicating the possibility of predominance of alogamy in the studied populations. Individual heritability in narrow sense in the block (h2a), that is, from additive effects,was 0.29 ± 0.04. Individual genetic variance coefficient (CVgi) was 18,72. Ranking of 50 superior genotypes showed a genetic gain from 5.66 cm to 8.72 cm, with estimates of averages in the next  generation varying from 19.04 cm to 22.45 cm (increment ranging from 41.9 % to 63.46 %). Colombo provenance contributed with 56 % of 50 superior genotypes, Canoinhas with 40 % and Caçador with 4%.
publishDate 2010
dc.date.none.fl_str_mv 2010-03-22
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/56
url https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/56
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/56/57
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. 57 (2008): jul./dez.; 61
Pesquisa Florestal Brasileira; No. 57 (2008): jul./dez.; 61
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_ 1783370931882688512

Registros relacionados