Growth of signalgrass influenced by shading levels and season of the year

Detalhes bibliográficos
Autor(a) principal: Paciullo, Domingos Sávio Campos
Data de Publicação: 2008
Outros Autores: Campos, Núbia Ribeiro, Gomide, Carlos Augusto Miranda, Castro, Carlos Renato Tavares de, Tavela, Roberto César, Rossiello, Roberto Oscar Pereyra
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/511
Resumo: The objective of this work was to evaluate, in different seasons of the year, the morphogenetic and structural traits and dry matter production of Brachiaria decumbens Stapf., established under three shading conditions: exclusive B. decumbens pasture, area distant 12 m from trees, and area under trees cultivated with Eucalyptus grandis mixed with leguminous trees (0, 18 and 50% shading level, respectively). The experimental design was the randomized blocks, in a split plot array in time, with four replications. Shade caused an increase of leaf and stem elongation rates. Shading levels have not influenced leaf appearance rates and leaf number per tiller. Morphogenetic and structural traits and herbage production rates reduced during winter, independently of shading level. Signalgrass presents phenotypical plasticity and responded to seasonal climatic variations and shade conditions; therefore, it has a good potential to be used in silvipastural systems.
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spelling Growth of signalgrass influenced by shading levels and season of the yearCrescimento de capim-braquiária influenciado pelo grau de sombreamento e pela estação do anoBrachiaria decumbens; morphogenesis; tillering; silvopastoral system; leaf elongation rate; leaf appearance rateBrachiaria decumbens; morfogênese; perfilhamento; sistema silvipastoril; taxa de alongamento de folhas; taxa de aparecimento de folhasThe objective of this work was to evaluate, in different seasons of the year, the morphogenetic and structural traits and dry matter production of Brachiaria decumbens Stapf., established under three shading conditions: exclusive B. decumbens pasture, area distant 12 m from trees, and area under trees cultivated with Eucalyptus grandis mixed with leguminous trees (0, 18 and 50% shading level, respectively). The experimental design was the randomized blocks, in a split plot array in time, with four replications. Shade caused an increase of leaf and stem elongation rates. Shading levels have not influenced leaf appearance rates and leaf number per tiller. Morphogenetic and structural traits and herbage production rates reduced during winter, independently of shading level. Signalgrass presents phenotypical plasticity and responded to seasonal climatic variations and shade conditions; therefore, it has a good potential to be used in silvipastural systems.O objetivo deste trabalho foi avaliar, nas diferentes estações do ano, as características morfogênicas e estruturais e a produção de matéria seca de Brachiaria decumbens Stapf., cultivada em três graus de sombreamento: área de pastagem exclusivamente com B. decumbens, área próxima ao bosque e área com bosque de Eucalyptus grandis consorciado com leguminosas arbóreas (0, 18 e 50% de sombreamento, respectivamente). O delineamento experimental foi o de blocos ao acaso, com arranjo em parcelas subdivididas no tempo, com quatro repetições. O sombreamento induziu à elevação das taxas de alongamento de folhas e colmos. A taxa de aparecimento de folhas e o número de folhas vivas por perfilho não foram influenciados pelos graus de sombreamento. Em geral, no inverno houve redução nos valores das variáveis morfogenéticas e estruturais do dossel, assim como das taxas de produção de forragem, independentemente do sombreamento. A braquiária apresenta plasticidade fenotípica, em resposta às variações climáticas sazonais e aos níveis de sombreamento ambiental, o que confere a essa espécie elevado potencial para uso em sistemas silvipastoris.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraFAPEMIGPaciullo, Domingos Sávio CamposCampos, Núbia RibeiroGomide, Carlos Augusto MirandaCastro, Carlos Renato Tavares deTavela, Roberto CésarRossiello, Roberto Oscar Pereyra2008-10-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/511Pesquisa Agropecuaria Brasileira; v.43, n.7, jul. 2008; 917-923Pesquisa Agropecuária Brasileira; v.43, n.7, jul. 2008; 917-9231678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/511/5479https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/511/344info:eu-repo/semantics/openAccess2014-06-27T17:29:04Zoai:ojs.seer.sct.embrapa.br:article/511Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-06-27T17:29:04Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Growth of signalgrass influenced by shading levels and season of the year
Crescimento de capim-braquiária influenciado pelo grau de sombreamento e pela estação do ano
title Growth of signalgrass influenced by shading levels and season of the year
spellingShingle Growth of signalgrass influenced by shading levels and season of the year
Paciullo, Domingos Sávio Campos
Brachiaria decumbens; morphogenesis; tillering; silvopastoral system; leaf elongation rate; leaf appearance rate
Brachiaria decumbens; morfogênese; perfilhamento; sistema silvipastoril; taxa de alongamento de folhas; taxa de aparecimento de folhas
title_short Growth of signalgrass influenced by shading levels and season of the year
title_full Growth of signalgrass influenced by shading levels and season of the year
title_fullStr Growth of signalgrass influenced by shading levels and season of the year
title_full_unstemmed Growth of signalgrass influenced by shading levels and season of the year
title_sort Growth of signalgrass influenced by shading levels and season of the year
author Paciullo, Domingos Sávio Campos
author_facet Paciullo, Domingos Sávio Campos
Campos, Núbia Ribeiro
Gomide, Carlos Augusto Miranda
Castro, Carlos Renato Tavares de
Tavela, Roberto César
Rossiello, Roberto Oscar Pereyra
author_role author
author2 Campos, Núbia Ribeiro
Gomide, Carlos Augusto Miranda
Castro, Carlos Renato Tavares de
Tavela, Roberto César
Rossiello, Roberto Oscar Pereyra
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv
FAPEMIG
dc.contributor.author.fl_str_mv Paciullo, Domingos Sávio Campos
Campos, Núbia Ribeiro
Gomide, Carlos Augusto Miranda
Castro, Carlos Renato Tavares de
Tavela, Roberto César
Rossiello, Roberto Oscar Pereyra
dc.subject.por.fl_str_mv Brachiaria decumbens; morphogenesis; tillering; silvopastoral system; leaf elongation rate; leaf appearance rate
Brachiaria decumbens; morfogênese; perfilhamento; sistema silvipastoril; taxa de alongamento de folhas; taxa de aparecimento de folhas
topic Brachiaria decumbens; morphogenesis; tillering; silvopastoral system; leaf elongation rate; leaf appearance rate
Brachiaria decumbens; morfogênese; perfilhamento; sistema silvipastoril; taxa de alongamento de folhas; taxa de aparecimento de folhas
description The objective of this work was to evaluate, in different seasons of the year, the morphogenetic and structural traits and dry matter production of Brachiaria decumbens Stapf., established under three shading conditions: exclusive B. decumbens pasture, area distant 12 m from trees, and area under trees cultivated with Eucalyptus grandis mixed with leguminous trees (0, 18 and 50% shading level, respectively). The experimental design was the randomized blocks, in a split plot array in time, with four replications. Shade caused an increase of leaf and stem elongation rates. Shading levels have not influenced leaf appearance rates and leaf number per tiller. Morphogenetic and structural traits and herbage production rates reduced during winter, independently of shading level. Signalgrass presents phenotypical plasticity and responded to seasonal climatic variations and shade conditions; therefore, it has a good potential to be used in silvipastural systems.
publishDate 2008
dc.date.none.fl_str_mv 2008-10-28
dc.type.none.fl_str_mv
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://seer.sct.embrapa.br/index.php/pab/article/view/511
url https://seer.sct.embrapa.br/index.php/pab/article/view/511
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/511/5479
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/511/344
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 Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.43, n.7, jul. 2008; 917-923
Pesquisa Agropecuária Brasileira; v.43, n.7, jul. 2008; 917-923
1678-3921
0100-104x
reponame:Pesquisa Agropecuária 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 Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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