Estimation of genetic parameters and repeatability coefficients of forage characters in elephant-grass (Pennisetun purpureum Schum.) clones - DOI: 10.4025/actasciagron.v26i4.1823

Detalhes bibliográficos
Autor(a) principal: Daher, Rogério Figueiredo
Data de Publicação: 2008
Outros Autores: Maldonado, Hernan, Pereira, Antonio Vander, Amaral Junior, Antonio Teixeira do, Pereira, Messias Gonzaga, Ferreira, Claudia Fortes, Ramos, Semiramis Rabelo Ramalho, Tardin, Flavio Dessaune, Silva, Marlon Peres da
Tipo de documento: Artigo
Idioma: por
Título da fonte: Acta Scientiarum. Agronomy (Online)
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1823
Resumo: Seventeen clones of elephant-grass were evaluated in a randomized block experimental design using split-plots, with 4 replications, from February/95 to December/97, resulting in 12 cuts (as environments), in the municipality of Campos dos Goytacazes, Rio de Janeiro, Brazil. The aim of this study was to obtain estimates of genetic parameters and repeatability coefficients of the following variables: dry matter production (DMP), height (H), stem diameter (SD) and number of tillers per meter (TN). The genotypic determination coefficient (H2) values varied from 33,49% (DMP) to 84,34% (H). Nine, five, three and two measures for the traits DMP, H, SD and TN, respectively, were enough to predict the real value of genotypes, for a coefficient of determination of 80%
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spelling Estimation of genetic parameters and repeatability coefficients of forage characters in elephant-grass (Pennisetun purpureum Schum.) clones - DOI: 10.4025/actasciagron.v26i4.1823Estimativas de parâmetros genéticos e de coeficientes de repetibilidade de caracteres forrageiros em clones de capim-elefante (Pennisetum purpureum Schum.)capim-elefanteclonescoeficientes de repetibilidadeparâmetros genéticosprodução de matéria seca5.00.00.00-4 Ciências AgráriasSeventeen clones of elephant-grass were evaluated in a randomized block experimental design using split-plots, with 4 replications, from February/95 to December/97, resulting in 12 cuts (as environments), in the municipality of Campos dos Goytacazes, Rio de Janeiro, Brazil. The aim of this study was to obtain estimates of genetic parameters and repeatability coefficients of the following variables: dry matter production (DMP), height (H), stem diameter (SD) and number of tillers per meter (TN). The genotypic determination coefficient (H2) values varied from 33,49% (DMP) to 84,34% (H). Nine, five, three and two measures for the traits DMP, H, SD and TN, respectively, were enough to predict the real value of genotypes, for a coefficient of determination of 80%Avaliaram-se dezessete clones de capim-elefante (Pennisetum purpureum Schum.) num delineamento em blocos ao acaso, no esquema de parcelas subdivididas, com 4 repetições, de fevereiro de 1995 a dezembro de 1997, totalizando 12 cortes (medidas repetidas no tempo), no município de Campos dos Goytacazes, RJ. Objetivou-se obter estimativas de parâmetros genéticos e de coeficientes de repetibilidade das variáveis produção de matéria seca (PMS), altura média das plantas (ALT), diâmetro médio do colmo (DC) e número de perfilhos por metro linear (NP). Os valores de coeficiente de determinação genotípica (H2) variaram amplamente, desde 33,49% para PMS até 84,34% para ALT. Devem ser realizadas, pelo menos, nove, cinco, três e duas medições considerando as características PMS, ALT, DC e NP, respectivamente, para predizer o valor real dos genótipos, com base no coeficiente de determinação preestabelecido de 80%Universidade Estadual de Maringá2008-04-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/182310.4025/actasciagron.v26i4.1823Acta Scientiarum. Agronomy; Vol 26 No 4 (2004); 483-490Acta Scientiarum. Agronomy; v. 26 n. 4 (2004); 483-4901807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1823/1266Daher, Rogério FigueiredoMaldonado, HernanPereira, Antonio VanderAmaral Junior, Antonio Teixeira doPereira, Messias GonzagaFerreira, Claudia FortesRamos, Semiramis Rabelo RamalhoTardin, Flavio DessauneSilva, Marlon Peres dainfo:eu-repo/semantics/openAccess2022-11-23T18:37:32Zoai:periodicos.uem.br/ojs:article/1823Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2022-11-23T18:37:32Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Estimation of genetic parameters and repeatability coefficients of forage characters in elephant-grass (Pennisetun purpureum Schum.) clones - DOI: 10.4025/actasciagron.v26i4.1823
Estimativas de parâmetros genéticos e de coeficientes de repetibilidade de caracteres forrageiros em clones de capim-elefante (Pennisetum purpureum Schum.)
title Estimation of genetic parameters and repeatability coefficients of forage characters in elephant-grass (Pennisetun purpureum Schum.) clones - DOI: 10.4025/actasciagron.v26i4.1823
spellingShingle Estimation of genetic parameters and repeatability coefficients of forage characters in elephant-grass (Pennisetun purpureum Schum.) clones - DOI: 10.4025/actasciagron.v26i4.1823
Daher, Rogério Figueiredo
capim-elefante
clones
coeficientes de repetibilidade
parâmetros genéticos
produção de matéria seca
5.00.00.00-4 Ciências Agrárias
title_short Estimation of genetic parameters and repeatability coefficients of forage characters in elephant-grass (Pennisetun purpureum Schum.) clones - DOI: 10.4025/actasciagron.v26i4.1823
title_full Estimation of genetic parameters and repeatability coefficients of forage characters in elephant-grass (Pennisetun purpureum Schum.) clones - DOI: 10.4025/actasciagron.v26i4.1823
title_fullStr Estimation of genetic parameters and repeatability coefficients of forage characters in elephant-grass (Pennisetun purpureum Schum.) clones - DOI: 10.4025/actasciagron.v26i4.1823
title_full_unstemmed Estimation of genetic parameters and repeatability coefficients of forage characters in elephant-grass (Pennisetun purpureum Schum.) clones - DOI: 10.4025/actasciagron.v26i4.1823
title_sort Estimation of genetic parameters and repeatability coefficients of forage characters in elephant-grass (Pennisetun purpureum Schum.) clones - DOI: 10.4025/actasciagron.v26i4.1823
author Daher, Rogério Figueiredo
author_facet Daher, Rogério Figueiredo
Maldonado, Hernan
Pereira, Antonio Vander
Amaral Junior, Antonio Teixeira do
Pereira, Messias Gonzaga
Ferreira, Claudia Fortes
Ramos, Semiramis Rabelo Ramalho
Tardin, Flavio Dessaune
Silva, Marlon Peres da
author_role author
author2 Maldonado, Hernan
Pereira, Antonio Vander
Amaral Junior, Antonio Teixeira do
Pereira, Messias Gonzaga
Ferreira, Claudia Fortes
Ramos, Semiramis Rabelo Ramalho
Tardin, Flavio Dessaune
Silva, Marlon Peres da
author2_role author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Daher, Rogério Figueiredo
Maldonado, Hernan
Pereira, Antonio Vander
Amaral Junior, Antonio Teixeira do
Pereira, Messias Gonzaga
Ferreira, Claudia Fortes
Ramos, Semiramis Rabelo Ramalho
Tardin, Flavio Dessaune
Silva, Marlon Peres da
dc.subject.por.fl_str_mv capim-elefante
clones
coeficientes de repetibilidade
parâmetros genéticos
produção de matéria seca
5.00.00.00-4 Ciências Agrárias
topic capim-elefante
clones
coeficientes de repetibilidade
parâmetros genéticos
produção de matéria seca
5.00.00.00-4 Ciências Agrárias
description Seventeen clones of elephant-grass were evaluated in a randomized block experimental design using split-plots, with 4 replications, from February/95 to December/97, resulting in 12 cuts (as environments), in the municipality of Campos dos Goytacazes, Rio de Janeiro, Brazil. The aim of this study was to obtain estimates of genetic parameters and repeatability coefficients of the following variables: dry matter production (DMP), height (H), stem diameter (SD) and number of tillers per meter (TN). The genotypic determination coefficient (H2) values varied from 33,49% (DMP) to 84,34% (H). Nine, five, three and two measures for the traits DMP, H, SD and TN, respectively, were enough to predict the real value of genotypes, for a coefficient of determination of 80%
publishDate 2008
dc.date.none.fl_str_mv 2008-04-11
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 http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1823
10.4025/actasciagron.v26i4.1823
url http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1823
identifier_str_mv 10.4025/actasciagron.v26i4.1823
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1823/1266
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 Universidade Estadual de Maringá
publisher.none.fl_str_mv Universidade Estadual de Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Agronomy; Vol 26 No 4 (2004); 483-490
Acta Scientiarum. Agronomy; v. 26 n. 4 (2004); 483-490
1807-8621
1679-9275
reponame:Acta Scientiarum. Agronomy (Online)
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
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reponame_str Acta Scientiarum. Agronomy (Online)
collection Acta Scientiarum. Agronomy (Online)
repository.name.fl_str_mv Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br
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