Morphogenetic and structural characteristics of guinea grass tillers at different ages under intermittent stocking
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Zootecnia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000700005 |
Resumo: | The objective of this research was to assess morphogenetic and structural characteristics of tillers of guinea grass cv. Tanzania at different ages. The pastures of guinea grass were managed in six pasture conditions related to the combination of three frequencies (90, 95, and 99% light interception) and two post-grazing heights (25 and 50 cm). In these six pastures conditions, three tiller ages were evaluated (young, mature, and old). The design was of completely randomized block with three replications. Young tillers exhibited higher leaf appearance rate and leaf elongation rate and, consequently, higher final leaf length and number of live leaves than mature and old tillers, regardless of the pasture condition. On pastures managed with 90 or 95% light interception associated with a post-grazing height of 25 cm, old tillers presented longer leaf lifespan than young and mature ones. There is a progressive reduction in the vigor of growth of pastures of guinea grass cv. Tanzania with advancing tiller age. |
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Morphogenetic and structural characteristics of guinea grass tillers at different ages under intermittent stockinggrazing managementlight interceptionPanicum maximumsward heightThe objective of this research was to assess morphogenetic and structural characteristics of tillers of guinea grass cv. Tanzania at different ages. The pastures of guinea grass were managed in six pasture conditions related to the combination of three frequencies (90, 95, and 99% light interception) and two post-grazing heights (25 and 50 cm). In these six pastures conditions, three tiller ages were evaluated (young, mature, and old). The design was of completely randomized block with three replications. Young tillers exhibited higher leaf appearance rate and leaf elongation rate and, consequently, higher final leaf length and number of live leaves than mature and old tillers, regardless of the pasture condition. On pastures managed with 90 or 95% light interception associated with a post-grazing height of 25 cm, old tillers presented longer leaf lifespan than young and mature ones. There is a progressive reduction in the vigor of growth of pastures of guinea grass cv. Tanzania with advancing tiller age.Sociedade Brasileira de Zootecnia2012-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000700005Revista Brasileira de Zootecnia v.41 n.7 2012reponame:Revista Brasileira de Zootecnia (Online)instname:Sociedade Brasileira de Zootecnia (SBZ)instacron:SBZ10.1590/S1516-35982012000700005info:eu-repo/semantics/openAccessBarbosa,Rodrigo AmorimNascimento Júnior,Domicio doVilela,Hélio HenriqueSousa,Braulio Maia de LanaSilva,Sila Carneiro daEuclides,Valéria Pacheco BatistaSilveira,Márcia Cristina Teixeira daeng2012-07-30T00:00:00Zoai:scielo:S1516-35982012000700005Revistahttps://www.rbz.org.br/pt-br/https://old.scielo.br/oai/scielo-oai.php||bz@sbz.org.br|| secretariarbz@sbz.org.br1806-92901516-3598opendoar:2012-07-30T00:00Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)false |
dc.title.none.fl_str_mv |
Morphogenetic and structural characteristics of guinea grass tillers at different ages under intermittent stocking |
title |
Morphogenetic and structural characteristics of guinea grass tillers at different ages under intermittent stocking |
spellingShingle |
Morphogenetic and structural characteristics of guinea grass tillers at different ages under intermittent stocking Barbosa,Rodrigo Amorim grazing management light interception Panicum maximum sward height |
title_short |
Morphogenetic and structural characteristics of guinea grass tillers at different ages under intermittent stocking |
title_full |
Morphogenetic and structural characteristics of guinea grass tillers at different ages under intermittent stocking |
title_fullStr |
Morphogenetic and structural characteristics of guinea grass tillers at different ages under intermittent stocking |
title_full_unstemmed |
Morphogenetic and structural characteristics of guinea grass tillers at different ages under intermittent stocking |
title_sort |
Morphogenetic and structural characteristics of guinea grass tillers at different ages under intermittent stocking |
author |
Barbosa,Rodrigo Amorim |
author_facet |
Barbosa,Rodrigo Amorim Nascimento Júnior,Domicio do Vilela,Hélio Henrique Sousa,Braulio Maia de Lana Silva,Sila Carneiro da Euclides,Valéria Pacheco Batista Silveira,Márcia Cristina Teixeira da |
author_role |
author |
author2 |
Nascimento Júnior,Domicio do Vilela,Hélio Henrique Sousa,Braulio Maia de Lana Silva,Sila Carneiro da Euclides,Valéria Pacheco Batista Silveira,Márcia Cristina Teixeira da |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Barbosa,Rodrigo Amorim Nascimento Júnior,Domicio do Vilela,Hélio Henrique Sousa,Braulio Maia de Lana Silva,Sila Carneiro da Euclides,Valéria Pacheco Batista Silveira,Márcia Cristina Teixeira da |
dc.subject.por.fl_str_mv |
grazing management light interception Panicum maximum sward height |
topic |
grazing management light interception Panicum maximum sward height |
description |
The objective of this research was to assess morphogenetic and structural characteristics of tillers of guinea grass cv. Tanzania at different ages. The pastures of guinea grass were managed in six pasture conditions related to the combination of three frequencies (90, 95, and 99% light interception) and two post-grazing heights (25 and 50 cm). In these six pastures conditions, three tiller ages were evaluated (young, mature, and old). The design was of completely randomized block with three replications. Young tillers exhibited higher leaf appearance rate and leaf elongation rate and, consequently, higher final leaf length and number of live leaves than mature and old tillers, regardless of the pasture condition. On pastures managed with 90 or 95% light interception associated with a post-grazing height of 25 cm, old tillers presented longer leaf lifespan than young and mature ones. There is a progressive reduction in the vigor of growth of pastures of guinea grass cv. Tanzania with advancing tiller age. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-07-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000700005 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000700005 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1516-35982012000700005 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Zootecnia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Zootecnia |
dc.source.none.fl_str_mv |
Revista Brasileira de Zootecnia v.41 n.7 2012 reponame:Revista Brasileira de Zootecnia (Online) instname:Sociedade Brasileira de Zootecnia (SBZ) instacron:SBZ |
instname_str |
Sociedade Brasileira de Zootecnia (SBZ) |
instacron_str |
SBZ |
institution |
SBZ |
reponame_str |
Revista Brasileira de Zootecnia (Online) |
collection |
Revista Brasileira de Zootecnia (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ) |
repository.mail.fl_str_mv |
||bz@sbz.org.br|| secretariarbz@sbz.org.br |
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1750318149991923712 |