Cardinal temperatures for the leaf development of Corymbia citriodora and Eucalyptus urophylla seedlings

Detalhes bibliográficos
Autor(a) principal: Freitas, Cleverson Henrique de
Data de Publicação: 2017
Outros Autores: Martins, Fabrina Bolzan, Abreu, Marcel Carvalho
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/23446
Resumo: The objective of this work was to estimate cardinal temperatures and phyllochron for the leaf development of the eucalyptus species Corymbia citriodora and Eucalyptus urophylla, in the seedling phase. A field experiment was carried out in a completely randomized design, in a 2x11 factorial arrangement, with the two eucalyptus species, 11 sowing dates, and five replicates, in the municipality of Itajubá, in the state of Minas Gerais, Brazil. The cardinal temperatures – base, optimum, and maximum – for leaf development were, respectively, 8.7, 17.1, and 41.3°C, for C. citriodora, and 11.5, 17.1, and 40.5°C for E. urophylla. The phyllochron of C. citriodora was 62.95°C day per leaf, and that of E. urophylla was 46.03°C day per leaf, which indicates that E. urophylla requires less energy accumulation than C. citriodora for leaf emission in the main stem.
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spelling Cardinal temperatures for the leaf development of Corymbia citriodora and Eucalyptus urophylla seedlingsTemperaturas cardinais para o desenvolvimento foliar de mudas de Corymbia citriodora e Eucalyptus urophyllaair temperature; leaf emission rate; phyllochron; seedling quality; thermal requirementtemperatura do ar; taxa de emissão foliar; filocrono; qualidade de mudas; necessidade térmicaThe objective of this work was to estimate cardinal temperatures and phyllochron for the leaf development of the eucalyptus species Corymbia citriodora and Eucalyptus urophylla, in the seedling phase. A field experiment was carried out in a completely randomized design, in a 2x11 factorial arrangement, with the two eucalyptus species, 11 sowing dates, and five replicates, in the municipality of Itajubá, in the state of Minas Gerais, Brazil. The cardinal temperatures – base, optimum, and maximum – for leaf development were, respectively, 8.7, 17.1, and 41.3°C, for C. citriodora, and 11.5, 17.1, and 40.5°C for E. urophylla. The phyllochron of C. citriodora was 62.95°C day per leaf, and that of E. urophylla was 46.03°C day per leaf, which indicates that E. urophylla requires less energy accumulation than C. citriodora for leaf emission in the main stem.O objetivo deste trabalho foi estimar as temperaturas cardinais e o filocrono para o desenvolvimento foliar das espécies de eucalipto Corymbia citriodora e Eucalyptus urophylla, durante a fase de muda. Um experimento de campo foi realizado em delineamento inteiramente casualizado, em arranjo fatorial 2x11, com as duas espécies de eucalipto, 11 épocas de semeadura e cinco repetições, em Itajubá, MG. As temperaturas cardinais – basal inferior, ótima e basal superior – para o desenvolvimento foliar foram, respectivamente, 8,7, 17,1 e 41,3°C, para C. citriodora, e 11,5, 17,1 e 40,5°C, para E. urophylla. O filocrono de C.citriodora foi de 62,95°C dia por folha, e o de E. urophylla, de 46,03°C dia por folha, o que é indício de que E. urophylla necessita de menor acúmulo energético do que C. citriodora para a emissão de folhas na haste principal.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (Capes, process No. 1115820)Freitas, Cleverson Henrique deMartins, Fabrina BolzanAbreu, Marcel Carvalho2017-06-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/23446Pesquisa Agropecuaria Brasileira; v.52, n.5, maio 2017; 283-292Pesquisa Agropecuária Brasileira; v.52, n.5, maio 2017; 283-2921678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/23446/13757https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/23446/15408Direitos autorais 2017 Pesquisa Agropecuária Brasileirainfo:eu-repo/semantics/openAccess2017-06-22T19:52:08Zoai:ojs.seer.sct.embrapa.br:article/23446Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2017-06-22T19:52:08Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Cardinal temperatures for the leaf development of Corymbia citriodora and Eucalyptus urophylla seedlings
Temperaturas cardinais para o desenvolvimento foliar de mudas de Corymbia citriodora e Eucalyptus urophylla
title Cardinal temperatures for the leaf development of Corymbia citriodora and Eucalyptus urophylla seedlings
spellingShingle Cardinal temperatures for the leaf development of Corymbia citriodora and Eucalyptus urophylla seedlings
Freitas, Cleverson Henrique de
air temperature; leaf emission rate; phyllochron; seedling quality; thermal requirement
temperatura do ar; taxa de emissão foliar; filocrono; qualidade de mudas; necessidade térmica
title_short Cardinal temperatures for the leaf development of Corymbia citriodora and Eucalyptus urophylla seedlings
title_full Cardinal temperatures for the leaf development of Corymbia citriodora and Eucalyptus urophylla seedlings
title_fullStr Cardinal temperatures for the leaf development of Corymbia citriodora and Eucalyptus urophylla seedlings
title_full_unstemmed Cardinal temperatures for the leaf development of Corymbia citriodora and Eucalyptus urophylla seedlings
title_sort Cardinal temperatures for the leaf development of Corymbia citriodora and Eucalyptus urophylla seedlings
author Freitas, Cleverson Henrique de
author_facet Freitas, Cleverson Henrique de
Martins, Fabrina Bolzan
Abreu, Marcel Carvalho
author_role author
author2 Martins, Fabrina Bolzan
Abreu, Marcel Carvalho
author2_role author
author
dc.contributor.none.fl_str_mv
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Capes, process No. 1115820)
dc.contributor.author.fl_str_mv Freitas, Cleverson Henrique de
Martins, Fabrina Bolzan
Abreu, Marcel Carvalho
dc.subject.por.fl_str_mv air temperature; leaf emission rate; phyllochron; seedling quality; thermal requirement
temperatura do ar; taxa de emissão foliar; filocrono; qualidade de mudas; necessidade térmica
topic air temperature; leaf emission rate; phyllochron; seedling quality; thermal requirement
temperatura do ar; taxa de emissão foliar; filocrono; qualidade de mudas; necessidade térmica
description The objective of this work was to estimate cardinal temperatures and phyllochron for the leaf development of the eucalyptus species Corymbia citriodora and Eucalyptus urophylla, in the seedling phase. A field experiment was carried out in a completely randomized design, in a 2x11 factorial arrangement, with the two eucalyptus species, 11 sowing dates, and five replicates, in the municipality of Itajubá, in the state of Minas Gerais, Brazil. The cardinal temperatures – base, optimum, and maximum – for leaf development were, respectively, 8.7, 17.1, and 41.3°C, for C. citriodora, and 11.5, 17.1, and 40.5°C for E. urophylla. The phyllochron of C. citriodora was 62.95°C day per leaf, and that of E. urophylla was 46.03°C day per leaf, which indicates that E. urophylla requires less energy accumulation than C. citriodora for leaf emission in the main stem.
publishDate 2017
dc.date.none.fl_str_mv 2017-06-22
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/23446
url https://seer.sct.embrapa.br/index.php/pab/article/view/23446
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/23446/13757
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/23446/15408
dc.rights.driver.fl_str_mv Direitos autorais 2017 Pesquisa Agropecuária Brasileira
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Direitos autorais 2017 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.52, n.5, maio 2017; 283-292
Pesquisa Agropecuária Brasileira; v.52, n.5, maio 2017; 283-292
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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