NITROGEN FERTILIZATION IN MASSAIGRASS: PRODUCTION AND MORPHOGENESIS

Detalhes bibliográficos
Autor(a) principal: Martuscello, Janaina Azevedo
Data de Publicação: 2015
Outros Autores: da Silva, Luciana Pontes, Cunha, Daniel de Noronnha Figueiredo Vieira da, Batista, Ana Catharina dos Santos, Braz, Thiago Gomes dos Santos, Ferreira, Paulo Sérgio
Tipo de documento: Artigo
Idioma: por
Título da fonte: Ciência animal brasileira (Online)
Texto Completo: https://revistas.ufg.br/vet/article/view/18730
Resumo: The objective of this study was to evaluate the morphogenetic and structural characteristics, as well as the biomass of Panicum maximum cv. Massai plants under nitrogen levels. The experiment was conducted in a randomized block design with four treatments (0, 80, 160 and 240 kg N/ha) and four replications in plots of 4 m2. The nitrogen was applied according to the treatments. Massaigrass plants responded linear and positively to N fertilization with a significant increase in the rates of elongation, appearance and senescence of leaves, stem elongation, and number of live leaves per tiller and the final length of the blade. On the other hand, the nitrogen decreased the phyllochron and leaf life span of the massaigrass, indicating a direct effect of nitrogen flow in the tissues. There was positive and linear effect of N fertilization on total dry matter of leaf and stem, but there was no effect on dry matter of dead material. Nitrogen fertilization influences tillering, morphogenesis and biomass production in massaigrass plants.Keywords: fertilization; nitrogen; Panicum maximum.
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spelling NITROGEN FERTILIZATION IN MASSAIGRASS: PRODUCTION AND MORPHOGENESISADUBAÇÃO NITROGENADA EM CAPIM-MASSAI: MORFOGÊNESE E PRODUÇÃOForrageFertilizaçãoNitrogênioPanicum maximumThe objective of this study was to evaluate the morphogenetic and structural characteristics, as well as the biomass of Panicum maximum cv. Massai plants under nitrogen levels. The experiment was conducted in a randomized block design with four treatments (0, 80, 160 and 240 kg N/ha) and four replications in plots of 4 m2. The nitrogen was applied according to the treatments. Massaigrass plants responded linear and positively to N fertilization with a significant increase in the rates of elongation, appearance and senescence of leaves, stem elongation, and number of live leaves per tiller and the final length of the blade. On the other hand, the nitrogen decreased the phyllochron and leaf life span of the massaigrass, indicating a direct effect of nitrogen flow in the tissues. There was positive and linear effect of N fertilization on total dry matter of leaf and stem, but there was no effect on dry matter of dead material. Nitrogen fertilization influences tillering, morphogenesis and biomass production in massaigrass plants.Keywords: fertilization; nitrogen; Panicum maximum.Objetivou-se avaliar as características morfogênicas e estruturais bem como a produção de biomassa de plantas de Panicum maximum cv. Massai sob doses de nitrogênio. O experimento foi instalado em delineamento de blocos casualizados com quatro tratamentos (0, 80, 160 e 240 kg de N/ha) e quatro repetições, em parcelas de 4 m2. A adubação nitrogenada foi aplicada parceladamente, de acordo como os tratamentos. Plantas de capim-massai responderam linear e positivamente à adubação nitrogenada com aumento significativo nas taxas de alongamento, aparecimento e senescência de folhas e alongamento de colmo bem como no número de folhas vivas por perfilhos e no comprimento final da lâmina. Por outro lado, a adubação nitrogenada diminui o filocrono e a duração de vida das folhas em capim-massai, o que indica efeito direto do nitrogênio no fluxo de tecidos. Observou-se efeito linear e positivo da adubação nitrogenada para massa seca total, de folhas e de colmos, não tendo sido observado efeito para massa seca de material morto. A adubação nitrogenda influencia o perfilhamento, a morfogênese e a produção de biomassa em plantas de capim-massai.Palavras-chave: Fertilização; Nitrogênio; Panicum maximum. Universidade Federal de Goiás2015-01-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionResearchAvaliado por paresPesquisa Científicaapplication/pdftext/htmlhttps://revistas.ufg.br/vet/article/view/1873010.1590/cab.v16i1.18730Brazilian Animal Science/ Ciência Animal Brasileira; Vol. 16 No. 1 (2015); 1-13Ciência Animal Brasileira / Brazilian Animal Science; v. 16 n. 1 (2015); 1-131809-68911518-2797reponame:Ciência animal brasileira (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/vet/article/view/18730/17845https://revistas.ufg.br/vet/article/view/18730/17848Martuscello, Janaina Azevedoda Silva, Luciana PontesCunha, Daniel de Noronnha Figueiredo Vieira daBatista, Ana Catharina dos SantosBraz, Thiago Gomes dos SantosFerreira, Paulo Sérgioinfo:eu-repo/semantics/openAccess2015-01-31T19:28:08Zoai:ojs.revistas.ufg.br:article/18730Revistahttps://revistas.ufg.br/vetPUBhttps://revistas.ufg.br/vet/oai||revistacab@gmail.com1809-68911518-2797opendoar:2015-01-31T19:28:08Ciência animal brasileira (Online) - Universidade Federal de Goiás (UFG)false
dc.title.none.fl_str_mv NITROGEN FERTILIZATION IN MASSAIGRASS: PRODUCTION AND MORPHOGENESIS
ADUBAÇÃO NITROGENADA EM CAPIM-MASSAI: MORFOGÊNESE E PRODUÇÃO
title NITROGEN FERTILIZATION IN MASSAIGRASS: PRODUCTION AND MORPHOGENESIS
spellingShingle NITROGEN FERTILIZATION IN MASSAIGRASS: PRODUCTION AND MORPHOGENESIS
Martuscello, Janaina Azevedo
Forrage
Fertilização
Nitrogênio
Panicum maximum
title_short NITROGEN FERTILIZATION IN MASSAIGRASS: PRODUCTION AND MORPHOGENESIS
title_full NITROGEN FERTILIZATION IN MASSAIGRASS: PRODUCTION AND MORPHOGENESIS
title_fullStr NITROGEN FERTILIZATION IN MASSAIGRASS: PRODUCTION AND MORPHOGENESIS
title_full_unstemmed NITROGEN FERTILIZATION IN MASSAIGRASS: PRODUCTION AND MORPHOGENESIS
title_sort NITROGEN FERTILIZATION IN MASSAIGRASS: PRODUCTION AND MORPHOGENESIS
author Martuscello, Janaina Azevedo
author_facet Martuscello, Janaina Azevedo
da Silva, Luciana Pontes
Cunha, Daniel de Noronnha Figueiredo Vieira da
Batista, Ana Catharina dos Santos
Braz, Thiago Gomes dos Santos
Ferreira, Paulo Sérgio
author_role author
author2 da Silva, Luciana Pontes
Cunha, Daniel de Noronnha Figueiredo Vieira da
Batista, Ana Catharina dos Santos
Braz, Thiago Gomes dos Santos
Ferreira, Paulo Sérgio
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Martuscello, Janaina Azevedo
da Silva, Luciana Pontes
Cunha, Daniel de Noronnha Figueiredo Vieira da
Batista, Ana Catharina dos Santos
Braz, Thiago Gomes dos Santos
Ferreira, Paulo Sérgio
dc.subject.por.fl_str_mv Forrage
Fertilização
Nitrogênio
Panicum maximum
topic Forrage
Fertilização
Nitrogênio
Panicum maximum
description The objective of this study was to evaluate the morphogenetic and structural characteristics, as well as the biomass of Panicum maximum cv. Massai plants under nitrogen levels. The experiment was conducted in a randomized block design with four treatments (0, 80, 160 and 240 kg N/ha) and four replications in plots of 4 m2. The nitrogen was applied according to the treatments. Massaigrass plants responded linear and positively to N fertilization with a significant increase in the rates of elongation, appearance and senescence of leaves, stem elongation, and number of live leaves per tiller and the final length of the blade. On the other hand, the nitrogen decreased the phyllochron and leaf life span of the massaigrass, indicating a direct effect of nitrogen flow in the tissues. There was positive and linear effect of N fertilization on total dry matter of leaf and stem, but there was no effect on dry matter of dead material. Nitrogen fertilization influences tillering, morphogenesis and biomass production in massaigrass plants.Keywords: fertilization; nitrogen; Panicum maximum.
publishDate 2015
dc.date.none.fl_str_mv 2015-01-31
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Research
Avaliado por pares
Pesquisa Científica
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/vet/article/view/18730
10.1590/cab.v16i1.18730
url https://revistas.ufg.br/vet/article/view/18730
identifier_str_mv 10.1590/cab.v16i1.18730
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufg.br/vet/article/view/18730/17845
https://revistas.ufg.br/vet/article/view/18730/17848
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
text/html
dc.publisher.none.fl_str_mv Universidade Federal de Goiás
publisher.none.fl_str_mv Universidade Federal de Goiás
dc.source.none.fl_str_mv Brazilian Animal Science/ Ciência Animal Brasileira; Vol. 16 No. 1 (2015); 1-13
Ciência Animal Brasileira / Brazilian Animal Science; v. 16 n. 1 (2015); 1-13
1809-6891
1518-2797
reponame:Ciência animal brasileira (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Ciência animal brasileira (Online)
collection Ciência animal brasileira (Online)
repository.name.fl_str_mv Ciência animal brasileira (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv ||revistacab@gmail.com
_version_ 1789440220998926336

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