Nitrogen efficiency indexes for evaluating nitrogen uptake and use in ornamental bromeliad’s root system and tank

Detalhes bibliográficos
Autor(a) principal: Silva, Karina Gonçalves da
Data de Publicação: 2018
Outros Autores: Ferreira, Mauricio Lamano, Silva, Emerson Alves da, Kanashiro, Shoey, Camargo, Plinio Barbosa, Tavares, Armando Reis
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/24924
Resumo: The objective of this work was to evaluate if nitrogen use efficiency (NUE) indexes can elucidate functional differences in nutrient uptake between the root system and tank of epiphytic bromeliads. The bromeliads Guzmania lingulata and Vriesea 'Harmony' received fertilizers in their tanks or through their roots using modified Hoagland & Arnon solution, with 0.00, 2.62, or 5.34 mmol L-1 nitrogen, as urea. After 90 days, nitrogen contents in leaves and plant biomass were evaluated, and NUE indexes were calculated. Guzmania lingulata and V. 'Harmony' fertilized in their tanks with 5.34 mmol L-1 had the highest averages of nitrogen uptake efficiency and recovery efficiency; those fertilized with 2.62 mmol L-1 through their roots showed the highest averages of NUE, nitrogen utilization efficiency, nitrogen physiological efficiency, and biomass conversion efficiency. The NUE indexes, besides being an effective tool to assess the nutritional status of ornamental bromeliads, reveal that the root system of epiphytic bromeliads is functional for nitrogen uptake and use.
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spelling Nitrogen efficiency indexes for evaluating nitrogen uptake and use in ornamental bromeliad’s root system and tankÍndices de eficiência do nitrogênio para avaliação da absorção e da utilização de nitrogênio no sistema radicular e no tanque de bromélias ornamentaisGuzmania lingulata; Vriesea; Bromeliaceae; nutritional efficiency index; plant nutrition; root functionalityGuzmania lingulata; Vriesea; Bromeliaceae; índice de eficiência nutricional; nutrição de plantas; funcionalidade das raízesThe objective of this work was to evaluate if nitrogen use efficiency (NUE) indexes can elucidate functional differences in nutrient uptake between the root system and tank of epiphytic bromeliads. The bromeliads Guzmania lingulata and Vriesea 'Harmony' received fertilizers in their tanks or through their roots using modified Hoagland & Arnon solution, with 0.00, 2.62, or 5.34 mmol L-1 nitrogen, as urea. After 90 days, nitrogen contents in leaves and plant biomass were evaluated, and NUE indexes were calculated. Guzmania lingulata and V. 'Harmony' fertilized in their tanks with 5.34 mmol L-1 had the highest averages of nitrogen uptake efficiency and recovery efficiency; those fertilized with 2.62 mmol L-1 through their roots showed the highest averages of NUE, nitrogen utilization efficiency, nitrogen physiological efficiency, and biomass conversion efficiency. The NUE indexes, besides being an effective tool to assess the nutritional status of ornamental bromeliads, reveal that the root system of epiphytic bromeliads is functional for nitrogen uptake and use.O objetivo deste trabalho foi avaliar se os índices de eficiência de uso do nitrogênio (EUN) podem elucidar diferenças funcionais na absorção de nutrientes entre o sistema radicular e o tanque de bromélias epifíticas. As bromélias Guzmania lingulata e Vriesea 'Harmony' receberam fertilizantes nos seus tanques ou pelas raízes com solução de Hoagland & Arnon modificada, com 0,00, 2,62 ou 5,34 mmol L-1 de nitrogênio na forma de ureia. Após 90 dias, o conteúdo de nitrogênio nas folhas e a biomassa das plantas foram avaliados, e os índices de EUN calculados. Guzmania lingulata e V. 'Harmony' adubadas no tanque com 5,34 mmol L-1 apresentaram maiores médias de eficiência de absorção de nitrogênio e de eficiência de recuperação; as adubadas nas raízes, com 2,62 mmol L-1, apresentaram as maiores médias de EUN, eficiência de utilização de nitrogênio, eficiência fisiológica de nitrogênio e índice de eficiência de conversão de biomassa. Os índices de EUN, além de serem importantes ferramentas para avaliação do status nutricional das bromélias, revelam que o sistema radicular das bromélias epífitas é funcional para absorção e utilização de nitrogênio.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), for support (project number 455929/2014-9) and productivity grant (number 306140/2012-8)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Capes)Silva, Karina Gonçalves daFerreira, Mauricio LamanoSilva, Emerson Alves daKanashiro, ShoeyCamargo, Plinio BarbosaTavares, Armando Reis2018-08-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/24924Pesquisa Agropecuaria Brasileira; v.53, n.6, jun. 2018; 703-709Pesquisa Agropecuária Brasileira; v.53, n.6, jun. 2018; 703-7091678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/24924/14191https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/24924/16752Direitos autorais 2018 Pesquisa Agropecuária Brasileirainfo:eu-repo/semantics/openAccess2018-08-23T17:20:07Zoai:ojs.seer.sct.embrapa.br:article/24924Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2018-08-23T17:20:07Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Nitrogen efficiency indexes for evaluating nitrogen uptake and use in ornamental bromeliad’s root system and tank
Índices de eficiência do nitrogênio para avaliação da absorção e da utilização de nitrogênio no sistema radicular e no tanque de bromélias ornamentais
title Nitrogen efficiency indexes for evaluating nitrogen uptake and use in ornamental bromeliad’s root system and tank
spellingShingle Nitrogen efficiency indexes for evaluating nitrogen uptake and use in ornamental bromeliad’s root system and tank
Silva, Karina Gonçalves da
Guzmania lingulata; Vriesea; Bromeliaceae; nutritional efficiency index; plant nutrition; root functionality
Guzmania lingulata; Vriesea; Bromeliaceae; índice de eficiência nutricional; nutrição de plantas; funcionalidade das raízes
title_short Nitrogen efficiency indexes for evaluating nitrogen uptake and use in ornamental bromeliad’s root system and tank
title_full Nitrogen efficiency indexes for evaluating nitrogen uptake and use in ornamental bromeliad’s root system and tank
title_fullStr Nitrogen efficiency indexes for evaluating nitrogen uptake and use in ornamental bromeliad’s root system and tank
title_full_unstemmed Nitrogen efficiency indexes for evaluating nitrogen uptake and use in ornamental bromeliad’s root system and tank
title_sort Nitrogen efficiency indexes for evaluating nitrogen uptake and use in ornamental bromeliad’s root system and tank
author Silva, Karina Gonçalves da
author_facet Silva, Karina Gonçalves da
Ferreira, Mauricio Lamano
Silva, Emerson Alves da
Kanashiro, Shoey
Camargo, Plinio Barbosa
Tavares, Armando Reis
author_role author
author2 Ferreira, Mauricio Lamano
Silva, Emerson Alves da
Kanashiro, Shoey
Camargo, Plinio Barbosa
Tavares, Armando Reis
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), for support (project number 455929/2014-9) and productivity grant (number 306140/2012-8)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Capes)
dc.contributor.author.fl_str_mv Silva, Karina Gonçalves da
Ferreira, Mauricio Lamano
Silva, Emerson Alves da
Kanashiro, Shoey
Camargo, Plinio Barbosa
Tavares, Armando Reis
dc.subject.por.fl_str_mv Guzmania lingulata; Vriesea; Bromeliaceae; nutritional efficiency index; plant nutrition; root functionality
Guzmania lingulata; Vriesea; Bromeliaceae; índice de eficiência nutricional; nutrição de plantas; funcionalidade das raízes
topic Guzmania lingulata; Vriesea; Bromeliaceae; nutritional efficiency index; plant nutrition; root functionality
Guzmania lingulata; Vriesea; Bromeliaceae; índice de eficiência nutricional; nutrição de plantas; funcionalidade das raízes
description The objective of this work was to evaluate if nitrogen use efficiency (NUE) indexes can elucidate functional differences in nutrient uptake between the root system and tank of epiphytic bromeliads. The bromeliads Guzmania lingulata and Vriesea 'Harmony' received fertilizers in their tanks or through their roots using modified Hoagland & Arnon solution, with 0.00, 2.62, or 5.34 mmol L-1 nitrogen, as urea. After 90 days, nitrogen contents in leaves and plant biomass were evaluated, and NUE indexes were calculated. Guzmania lingulata and V. 'Harmony' fertilized in their tanks with 5.34 mmol L-1 had the highest averages of nitrogen uptake efficiency and recovery efficiency; those fertilized with 2.62 mmol L-1 through their roots showed the highest averages of NUE, nitrogen utilization efficiency, nitrogen physiological efficiency, and biomass conversion efficiency. The NUE indexes, besides being an effective tool to assess the nutritional status of ornamental bromeliads, reveal that the root system of epiphytic bromeliads is functional for nitrogen uptake and use.
publishDate 2018
dc.date.none.fl_str_mv 2018-08-23
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/24924
url https://seer.sct.embrapa.br/index.php/pab/article/view/24924
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/24924/14191
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/24924/16752
dc.rights.driver.fl_str_mv Direitos autorais 2018 Pesquisa Agropecuária Brasileira
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Direitos autorais 2018 Pesquisa Agropecuária Brasileira
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.53, n.6, jun. 2018; 703-709
Pesquisa Agropecuária Brasileira; v.53, n.6, jun. 2018; 703-709
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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