Morphogenetic and structural characteristics of guinea grass tillers at different ages under intermittent stocking

Detalhes bibliográficos
Autor(a) principal: Barbosa,Rodrigo Amorim
Data de Publicação: 2012
Outros Autores: 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
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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spelling 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
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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)
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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)
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