Comportamento fisiológico de dois clones de Eucalyptus na época seca e chuvosa

Detalhes bibliográficos
Autor(a) principal: Tatagiba, Sandro Dan
Data de Publicação: 2015
Outros Autores: Pezzopane, José Eduardo Macedo, Reis, Edvaldo Fialho dos, Dardengo, Maria Christina Junger Delogo, Effgen, Teóphilo André Maretto
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://www.cerne.ufla.br/site/index.php/CERNE/article/view/636
http://repositorio.ufla.br/jspui/handle/1/14508
Resumo: This research studied the behavior of several gaseous trade off (liquid photosynthesis, stomatal conductance, transpiration and water use efficiency) and leaf water potential of adult trees of two clones of Eucalyptus in dry and rainy season, in Itauninhas county, Espírito Santo State, in order to allow the seasonal variations of the atmosphere affect carbon assimilation and mainly, the primary productivity of the plants. Clones 15 and 39 presented different answers in the behavior of the gaseous trade off and of leaf water potential in the two studied seasons. The largest values of liquid photosynthesis, stomatal conductance and transpiration and of leaf water potential were found in the rainy season, due to soil water surplus, while in the dry season, the water deficiency cause reduction of those physiologic variables. Clone 39 presented larger values of liquid photosynthesis, stomatal conductance and transpiration in comparison to clone 15, in the dry season, while efficiency in the use of water was inferior, indicating that this clone can probably reach larger productivity, but its strategy in saving water, presented smaller efficiency.
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spelling Comportamento fisiológico de dois clones de Eucalyptus na época seca e chuvosaPhysiologic behavior of two clones of Eucalyptus in dry and rainy seasonEucalyptus - ClonesLeaf water potentialGaseous trade offEucalipto - ClonesTrocas gasosasPotencial hídrico foliarThis research studied the behavior of several gaseous trade off (liquid photosynthesis, stomatal conductance, transpiration and water use efficiency) and leaf water potential of adult trees of two clones of Eucalyptus in dry and rainy season, in Itauninhas county, Espírito Santo State, in order to allow the seasonal variations of the atmosphere affect carbon assimilation and mainly, the primary productivity of the plants. Clones 15 and 39 presented different answers in the behavior of the gaseous trade off and of leaf water potential in the two studied seasons. The largest values of liquid photosynthesis, stomatal conductance and transpiration and of leaf water potential were found in the rainy season, due to soil water surplus, while in the dry season, the water deficiency cause reduction of those physiologic variables. Clone 39 presented larger values of liquid photosynthesis, stomatal conductance and transpiration in comparison to clone 15, in the dry season, while efficiency in the use of water was inferior, indicating that this clone can probably reach larger productivity, but its strategy in saving water, presented smaller efficiency.Com este trabalho, objetivou-se estudar o comportamento das variações das trocas gasosas (fotossíntese líquida, condutância estomática, transpiração e eficiência no uso da água) e o potencial hídrico foliar de árvores adultas de um plantio de dois clones de Eucalyptus em duas épocas (seca e chuvosa), na região de Itauninhas, no Estado do Espírito Santo, de modo a verificar como as variações sazonais do ambiente afetam a assimilação do carbono e principalmente, a produtividade primária das plantas. Os clones 15 e 39 apresentaram diferentes respostas no comportamento das trocas gasosas e do potencial hídrico foliar nas duas épocas estudadas. Os maiores valores da taxa fotossintética, condutância estomática, transpiração e do potencial hídrico foliar foram encontrados na época chuvosa, em virtude do excedente hídrico no solo, enquanto que na época seca, a deficiência hídrica promoveu redução dessas variáveis fisiológicas. O clone 39 apresentou maiores valores da fotossíntese líquida, condutância estomática e transpiração em comparação ao clone 15, na época seca, enquanto sua eficiência no uso da água foi inferior, indicando ser o clone que provavelmente pode alcançar maior produtividade, mas sua estratégia em economia de água, apresentou uma menor eficiênciaCERNE2015-10-272017-08-01T20:15:08Z2017-08-01T20:15:08Z2017-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttp://www.cerne.ufla.br/site/index.php/CERNE/article/view/636TATAGIBA, S. D. et al. Comportamento fisiológico de dois clones de Eucalyptus na época seca e chuvosa. Cerne, Lavras, v. 13, n. 2, p. 149-159, abr./jun. 2007.http://repositorio.ufla.br/jspui/handle/1/14508CERNE; Vol 13 No 2 (2007); 149-159CERNE; Vol 13 No 2 (2007); 149-1592317-63420104-7760reponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAenghttp://www.cerne.ufla.br/site/index.php/CERNE/article/view/636/536Copyright (c) 2015 CERNEAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessTatagiba, Sandro DanPezzopane, José Eduardo MacedoReis, Edvaldo Fialho dosDardengo, Maria Christina Junger DelogoEffgen, Teóphilo André Maretto2021-04-22T19:37:46Zoai:localhost:1/14508Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2021-04-22T19:37:46Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Comportamento fisiológico de dois clones de Eucalyptus na época seca e chuvosa
Physiologic behavior of two clones of Eucalyptus in dry and rainy season
title Comportamento fisiológico de dois clones de Eucalyptus na época seca e chuvosa
spellingShingle Comportamento fisiológico de dois clones de Eucalyptus na época seca e chuvosa
Tatagiba, Sandro Dan
Eucalyptus - Clones
Leaf water potential
Gaseous trade off
Eucalipto - Clones
Trocas gasosas
Potencial hídrico foliar
title_short Comportamento fisiológico de dois clones de Eucalyptus na época seca e chuvosa
title_full Comportamento fisiológico de dois clones de Eucalyptus na época seca e chuvosa
title_fullStr Comportamento fisiológico de dois clones de Eucalyptus na época seca e chuvosa
title_full_unstemmed Comportamento fisiológico de dois clones de Eucalyptus na época seca e chuvosa
title_sort Comportamento fisiológico de dois clones de Eucalyptus na época seca e chuvosa
author Tatagiba, Sandro Dan
author_facet Tatagiba, Sandro Dan
Pezzopane, José Eduardo Macedo
Reis, Edvaldo Fialho dos
Dardengo, Maria Christina Junger Delogo
Effgen, Teóphilo André Maretto
author_role author
author2 Pezzopane, José Eduardo Macedo
Reis, Edvaldo Fialho dos
Dardengo, Maria Christina Junger Delogo
Effgen, Teóphilo André Maretto
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Tatagiba, Sandro Dan
Pezzopane, José Eduardo Macedo
Reis, Edvaldo Fialho dos
Dardengo, Maria Christina Junger Delogo
Effgen, Teóphilo André Maretto
dc.subject.por.fl_str_mv Eucalyptus - Clones
Leaf water potential
Gaseous trade off
Eucalipto - Clones
Trocas gasosas
Potencial hídrico foliar
topic Eucalyptus - Clones
Leaf water potential
Gaseous trade off
Eucalipto - Clones
Trocas gasosas
Potencial hídrico foliar
description This research studied the behavior of several gaseous trade off (liquid photosynthesis, stomatal conductance, transpiration and water use efficiency) and leaf water potential of adult trees of two clones of Eucalyptus in dry and rainy season, in Itauninhas county, Espírito Santo State, in order to allow the seasonal variations of the atmosphere affect carbon assimilation and mainly, the primary productivity of the plants. Clones 15 and 39 presented different answers in the behavior of the gaseous trade off and of leaf water potential in the two studied seasons. The largest values of liquid photosynthesis, stomatal conductance and transpiration and of leaf water potential were found in the rainy season, due to soil water surplus, while in the dry season, the water deficiency cause reduction of those physiologic variables. Clone 39 presented larger values of liquid photosynthesis, stomatal conductance and transpiration in comparison to clone 15, in the dry season, while efficiency in the use of water was inferior, indicating that this clone can probably reach larger productivity, but its strategy in saving water, presented smaller efficiency.
publishDate 2015
dc.date.none.fl_str_mv 2015-10-27
2017-08-01T20:15:08Z
2017-08-01T20:15:08Z
2017-08-01
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 http://www.cerne.ufla.br/site/index.php/CERNE/article/view/636
TATAGIBA, S. D. et al. Comportamento fisiológico de dois clones de Eucalyptus na época seca e chuvosa. Cerne, Lavras, v. 13, n. 2, p. 149-159, abr./jun. 2007.
http://repositorio.ufla.br/jspui/handle/1/14508
url http://www.cerne.ufla.br/site/index.php/CERNE/article/view/636
http://repositorio.ufla.br/jspui/handle/1/14508
identifier_str_mv TATAGIBA, S. D. et al. Comportamento fisiológico de dois clones de Eucalyptus na época seca e chuvosa. Cerne, Lavras, v. 13, n. 2, p. 149-159, abr./jun. 2007.
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://www.cerne.ufla.br/site/index.php/CERNE/article/view/636/536
dc.rights.driver.fl_str_mv Copyright (c) 2015 CERNE
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2015 CERNE
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv CERNE
publisher.none.fl_str_mv CERNE
dc.source.none.fl_str_mv CERNE; Vol 13 No 2 (2007); 149-159
CERNE; Vol 13 No 2 (2007); 149-159
2317-6342
0104-7760
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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