Morphophysiology and nutritive value of signalgrass in silvipastoral system with different tree arrangements
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/13210 |
Resumo: | The study was carried out with the aim to evaluate the effect of different special arrangements in forage yield, nutritive value and structure of the understory of signalgrass (Brachiaria decumbens) in silvipastoral system with different regrowth times. The design was in complete randomized block with tree replicates in a factorial scheme with split-plots 2 × 2 × 5 consisting two spatial arrangements [Double lines 9 × (2 × 2m) and simple lines (9 × 2m)] in two sampling places (in the middle of the intercropping and under the three canopy) in the plot and five regrowth times (35, 42, 49, 56 e 63 days) in the split-plot. It was used a silvipastoral system established since June, 2008 in degraded pasture with signalgrass predominance. The pasture was homogenized by grazing at 15 cm from the soil level. Were evaluated the dry matter yield leaf:stem ratio, light interception and leaf area index. In addition were evaluated the nutritive value characteristics dry matter content, neutral and acid detergent fiber, crude protein and lignin. The photosynthetic active radiation was monitored. The use of simple or double lines did not influence the leaf area index, light interception and dry mass yield. The leaf:stem ratio was influenced by the sampling place only in the double line arrangement. The neutral detergent fiber was substantially high in the double line arrangement. Therefore, the use of double lines reduces the photosynthetic active radiation amount incident in the understory, but does not reduce the forage yield in relation to simple line arrangements. These results indicate the use of double lines arrangement may allow the harvest of more threes without reduce the pasture production. |
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Morphophysiology and nutritive value of signalgrass in silvipastoral system with different tree arrangementsMorfofisiologia e valor nutritivo do capim-braquiária em sistema silvipastoril com diferentes arranjos espaciaisBrachiaria decumbensEucalyptusLight interceptionPastureSpacingShading.Brachiaria decumbensEspaçamentoEucaliptoInterceptação luminosaPastagemSombreamento.Pastagem e ForragiculturaThe study was carried out with the aim to evaluate the effect of different special arrangements in forage yield, nutritive value and structure of the understory of signalgrass (Brachiaria decumbens) in silvipastoral system with different regrowth times. The design was in complete randomized block with tree replicates in a factorial scheme with split-plots 2 × 2 × 5 consisting two spatial arrangements [Double lines 9 × (2 × 2m) and simple lines (9 × 2m)] in two sampling places (in the middle of the intercropping and under the three canopy) in the plot and five regrowth times (35, 42, 49, 56 e 63 days) in the split-plot. It was used a silvipastoral system established since June, 2008 in degraded pasture with signalgrass predominance. The pasture was homogenized by grazing at 15 cm from the soil level. Were evaluated the dry matter yield leaf:stem ratio, light interception and leaf area index. In addition were evaluated the nutritive value characteristics dry matter content, neutral and acid detergent fiber, crude protein and lignin. The photosynthetic active radiation was monitored. The use of simple or double lines did not influence the leaf area index, light interception and dry mass yield. The leaf:stem ratio was influenced by the sampling place only in the double line arrangement. The neutral detergent fiber was substantially high in the double line arrangement. Therefore, the use of double lines reduces the photosynthetic active radiation amount incident in the understory, but does not reduce the forage yield in relation to simple line arrangements. These results indicate the use of double lines arrangement may allow the harvest of more threes without reduce the pasture production.Objetivou-se com este trabalho avaliar o efeito dos arranjos espaciais no valor nutritivo, produtividade e estrutura do sub-bosque de capim-braquiária em sistema silvipastoril com diferentes tempos de rebrotação (35, 42, 49, 56 e 63). O delineamento foi em blocos casualizados com três repetições em esquema fatorial com parcelas subdivididas 2 × 2 × 5, onde avaliaram-se dois arranjos espaciais [linhas duplas 9 × (2 × 2m) e linha simples (9 × 2m)] e dois locais de amostragem (no centro da entrelinha e sob a copa das árvores) na parcela e cinco tempos de rebrotação (35, 42, 49, 56 e 63 dias) nas subparcelas. Utilizou-se sistema silvipastoril implantado em junho de 2008, em área de pastagem degradada com predominância de Brachiaria decumbens. O pasto foi uniformizado a 15 cm do nível do solo por meio de pastejo. Foram avaliadas a produção de massa seca, relação lâmina colmo, interceptação luminosa e índice de área foliar. Além destas avaliaram-se também as características de valor nutritivo teor de matéria seca, fibra em detergente neutro e ácido, proteína bruta e lignina. Foi realizado o monitoramento da radiação fotossinteticamente utilizando o ceptômetro. O uso de arranjos com linhas simples ou duplas não influenciou o índice de área foliar, a interceptação luminosa e a produção de massa seca. A relação lâmina:colmo foi influenciada pelo local de amostragem somente no arranjo duplo. Os teores de fibra em detergente neutro foram substancialmente maiores no arranjo duplo. Portanto, o uso de linhas duplas de eucalipto implica em redução na quantidade de radiação incidente no sub-bosque, mas não implica em redução da produtividade do pasto em relação ao arranjo simples. Estes resultados indicam que o uso de arranjos duplos pode permitir a colheita de maior quantidade de árvores sem prejudicar a produtividade do pasto.UEL2014-06-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/1321010.5433/1679-0359.2014v35n3p1487Semina: Ciências Agrárias; Vol. 35 No. 3 (2014); 1487-1500Semina: Ciências Agrárias; v. 35 n. 3 (2014); 1487-15001679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/13210/pdf_344Copyright (c) 2014 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessCoelho, Joysiene SanguineteAraújo, Saulo Alberto do CarmoViana, Maria Celuta MachadoVillela, Severino Delmar JunqueiraFreire, Francisco MorelBraz, Thiago Gomes dos Santos2023-01-16T15:18:10Zoai:ojs.pkp.sfu.ca:article/13210Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2023-01-16T15:18:10Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Morphophysiology and nutritive value of signalgrass in silvipastoral system with different tree arrangements Morfofisiologia e valor nutritivo do capim-braquiária em sistema silvipastoril com diferentes arranjos espaciais |
title |
Morphophysiology and nutritive value of signalgrass in silvipastoral system with different tree arrangements |
spellingShingle |
Morphophysiology and nutritive value of signalgrass in silvipastoral system with different tree arrangements Coelho, Joysiene Sanguinete Brachiaria decumbens Eucalyptus Light interception Pasture Spacing Shading. Brachiaria decumbens Espaçamento Eucalipto Interceptação luminosa Pastagem Sombreamento. Pastagem e Forragicultura |
title_short |
Morphophysiology and nutritive value of signalgrass in silvipastoral system with different tree arrangements |
title_full |
Morphophysiology and nutritive value of signalgrass in silvipastoral system with different tree arrangements |
title_fullStr |
Morphophysiology and nutritive value of signalgrass in silvipastoral system with different tree arrangements |
title_full_unstemmed |
Morphophysiology and nutritive value of signalgrass in silvipastoral system with different tree arrangements |
title_sort |
Morphophysiology and nutritive value of signalgrass in silvipastoral system with different tree arrangements |
author |
Coelho, Joysiene Sanguinete |
author_facet |
Coelho, Joysiene Sanguinete Araújo, Saulo Alberto do Carmo Viana, Maria Celuta Machado Villela, Severino Delmar Junqueira Freire, Francisco Morel Braz, Thiago Gomes dos Santos |
author_role |
author |
author2 |
Araújo, Saulo Alberto do Carmo Viana, Maria Celuta Machado Villela, Severino Delmar Junqueira Freire, Francisco Morel Braz, Thiago Gomes dos Santos |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Coelho, Joysiene Sanguinete Araújo, Saulo Alberto do Carmo Viana, Maria Celuta Machado Villela, Severino Delmar Junqueira Freire, Francisco Morel Braz, Thiago Gomes dos Santos |
dc.subject.por.fl_str_mv |
Brachiaria decumbens Eucalyptus Light interception Pasture Spacing Shading. Brachiaria decumbens Espaçamento Eucalipto Interceptação luminosa Pastagem Sombreamento. Pastagem e Forragicultura |
topic |
Brachiaria decumbens Eucalyptus Light interception Pasture Spacing Shading. Brachiaria decumbens Espaçamento Eucalipto Interceptação luminosa Pastagem Sombreamento. Pastagem e Forragicultura |
description |
The study was carried out with the aim to evaluate the effect of different special arrangements in forage yield, nutritive value and structure of the understory of signalgrass (Brachiaria decumbens) in silvipastoral system with different regrowth times. The design was in complete randomized block with tree replicates in a factorial scheme with split-plots 2 × 2 × 5 consisting two spatial arrangements [Double lines 9 × (2 × 2m) and simple lines (9 × 2m)] in two sampling places (in the middle of the intercropping and under the three canopy) in the plot and five regrowth times (35, 42, 49, 56 e 63 days) in the split-plot. It was used a silvipastoral system established since June, 2008 in degraded pasture with signalgrass predominance. The pasture was homogenized by grazing at 15 cm from the soil level. Were evaluated the dry matter yield leaf:stem ratio, light interception and leaf area index. In addition were evaluated the nutritive value characteristics dry matter content, neutral and acid detergent fiber, crude protein and lignin. The photosynthetic active radiation was monitored. The use of simple or double lines did not influence the leaf area index, light interception and dry mass yield. The leaf:stem ratio was influenced by the sampling place only in the double line arrangement. The neutral detergent fiber was substantially high in the double line arrangement. Therefore, the use of double lines reduces the photosynthetic active radiation amount incident in the understory, but does not reduce the forage yield in relation to simple line arrangements. These results indicate the use of double lines arrangement may allow the harvest of more threes without reduce the pasture production. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-06-25 |
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://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/13210 10.5433/1679-0359.2014v35n3p1487 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/13210 |
identifier_str_mv |
10.5433/1679-0359.2014v35n3p1487 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/13210/pdf_344 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2014 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2014 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 35 No. 3 (2014); 1487-1500 Semina: Ciências Agrárias; v. 35 n. 3 (2014); 1487-1500 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306068311932928 |