Morfofisiologia foliar de cafeeiro sob diferentes níveis de restrição luminosa

Detalhes bibliográficos
Autor(a) principal: César, Fábio Ricardo Coutinho Fontes
Data de Publicação: 2011
Outros Autores: Matsumoto, Sylvana Naomi, Viana, Anselmo Eloy Silveira, Santos, Marcos Antônio Ferreira, Bonfim, Joice Andrade
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/132
http://repositorio.ufla.br/jspui/handle/1/13858
Resumo: The aim of this study was to evaluate the morphophysiological behavior of coffee leaves (Coffea arabica L.) maintained under different levels of artificial shading in initial vegetative phase. The experiment was carried out from January to June/2007, in agricultural field of Universidade Estadual do Sudoeste da Bahia – UESB, Vitória da Conquista, Bahia, Brazil. Four trials were carried out maintaining shading conditions (30, 50 and 70% of sun light radiance) and at a full sunlight, during 90 days after plantlet emergence. For each assay, Catuaí (IAC144), Catucaí 2SL and Acauã varieties were evaluated, following a randomized block design, considering number of leaves, leaf area, leaf relative water content, leaf water potential, number of ordinary epidermis and stomata cell and stomata index. Shading levels affect the water status of coffee plants, resulting in alterations of morphophysiology of leaves. Increase of leaf water content occurs simultaneously with decrease of modulus of water potential and proline content, denoting an interaction between shading and water content to coffee plants. Higher proline content was verified in Catuaí leaves in comparison to Catucaí variety. With light restriction there was a reduction of ordinary epidermis cell and stomata density. Upward of leaf area and leaf number was observed when the light restriction was similar or lower to 42,86 and 25,0 %, respectively.
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spelling Morfofisiologia foliar de cafeeiro sob diferentes níveis de restrição luminosaLeaf morphophysiology of coffee plants under different levels of light restrictionCoffee growingShadingFisiologia da produçãoSombreamentoLight radianceCafeiculturaStomataLuminosidadeEstômatosThe aim of this study was to evaluate the morphophysiological behavior of coffee leaves (Coffea arabica L.) maintained under different levels of artificial shading in initial vegetative phase. The experiment was carried out from January to June/2007, in agricultural field of Universidade Estadual do Sudoeste da Bahia – UESB, Vitória da Conquista, Bahia, Brazil. Four trials were carried out maintaining shading conditions (30, 50 and 70% of sun light radiance) and at a full sunlight, during 90 days after plantlet emergence. For each assay, Catuaí (IAC144), Catucaí 2SL and Acauã varieties were evaluated, following a randomized block design, considering number of leaves, leaf area, leaf relative water content, leaf water potential, number of ordinary epidermis and stomata cell and stomata index. Shading levels affect the water status of coffee plants, resulting in alterations of morphophysiology of leaves. Increase of leaf water content occurs simultaneously with decrease of modulus of water potential and proline content, denoting an interaction between shading and water content to coffee plants. Higher proline content was verified in Catuaí leaves in comparison to Catucaí variety. With light restriction there was a reduction of ordinary epidermis cell and stomata density. Upward of leaf area and leaf number was observed when the light restriction was similar or lower to 42,86 and 25,0 %, respectively.Objetivou-se, neste estudo, avaliar o comportamento morfofisiológico de variedades de cafeeiros arábica (Coffea arabica L.), em fase vegetativa inicial, cultivadas sob diferentes níveis de restrição luminosa artificial. O experimento foi conduzido no período de janeiro a junho do ano de 2007, no campo agropecuário da Universidade Estadual do Sudoeste da Bahia – UESB, em Vitória da Conquista, BA. Quatro ensaios foram definidos por níveis de 30, 50 e 70 % de restrição luminosa e a pleno sol, mantidas durante os primeiros 90 dias após emergência das plântulas. Para cada ensaio, o comportamento das variedades Catuaí (IAC 144), Catucaí 2SL, e Acauã foi avaliado, seguindo-se o delineamento de blocos casualizados, sendo avaliado o número de folhas, área foliar, teor relativo de água na folha, potencial hídrico foliar, teor foliar de prolina, número de células epidérmicas, número de estômatos e índice estomático. Os níveis de restrição luminosa afetaram o status hídrico dos cafeeiros, alterando a morfofisiologia dos mesmos. Para a variedade Catuaí, o maior teor de prolina foliar foi determinado em relação à variedade Catucaí. Com a elevação da restrição de luz ocorreu redução da densidade estomática, do número de células epidérmicas ordinárias e do índice estomático. Níveis de restrição de luz até 42,86 e 25,0 % favoreceram a elevação da área foliar e do número de folhas, respectivamente.2011-03-312017-08-01T20:08:29Z2017-08-01T20:08:29Z2017-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttp://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/132CÉSAR, F. R. C. F. et al. Morfofisiologia foliar de cafeeiro sob diferentes níveis de restrição luminosa. Coffee Science, Lavras, v. 5, n. 3, p. 262-271, set./dez. 2010.http://repositorio.ufla.br/jspui/handle/1/13858Coffee Science; v. 5, n. 3 (2010); 262-271Coffee Science; v. 5, n. 3 (2010); 262-271Coffee Science; v. 5, n. 3 (2010); 262-2711984-39091809-6875reponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAporhttp://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/132/pdfAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessCésar, Fábio Ricardo Coutinho FontesMatsumoto, Sylvana NaomiViana, Anselmo Eloy SilveiraSantos, Marcos Antônio FerreiraBonfim, Joice AndradeCésar, Fábio Ricardo Coutinho FontesMatsumoto, Sylvana NaomiViana, Anselmo Eloy SilveiraSantos, Marcos Antônio FerreiraBonfim, Joice Andrade2021-01-29T17:26:50Zoai:localhost:1/13858Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2021-01-29T17:26:50Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Morfofisiologia foliar de cafeeiro sob diferentes níveis de restrição luminosa
Leaf morphophysiology of coffee plants under different levels of light restriction
title Morfofisiologia foliar de cafeeiro sob diferentes níveis de restrição luminosa
spellingShingle Morfofisiologia foliar de cafeeiro sob diferentes níveis de restrição luminosa
César, Fábio Ricardo Coutinho Fontes
Coffee growing
Shading
Fisiologia da produção
Sombreamento
Light radiance
Cafeicultura
Stomata
Luminosidade
Estômatos
title_short Morfofisiologia foliar de cafeeiro sob diferentes níveis de restrição luminosa
title_full Morfofisiologia foliar de cafeeiro sob diferentes níveis de restrição luminosa
title_fullStr Morfofisiologia foliar de cafeeiro sob diferentes níveis de restrição luminosa
title_full_unstemmed Morfofisiologia foliar de cafeeiro sob diferentes níveis de restrição luminosa
title_sort Morfofisiologia foliar de cafeeiro sob diferentes níveis de restrição luminosa
author César, Fábio Ricardo Coutinho Fontes
author_facet César, Fábio Ricardo Coutinho Fontes
Matsumoto, Sylvana Naomi
Viana, Anselmo Eloy Silveira
Santos, Marcos Antônio Ferreira
Bonfim, Joice Andrade
author_role author
author2 Matsumoto, Sylvana Naomi
Viana, Anselmo Eloy Silveira
Santos, Marcos Antônio Ferreira
Bonfim, Joice Andrade
author2_role author
author
author
author
dc.contributor.author.fl_str_mv César, Fábio Ricardo Coutinho Fontes
Matsumoto, Sylvana Naomi
Viana, Anselmo Eloy Silveira
Santos, Marcos Antônio Ferreira
Bonfim, Joice Andrade
César, Fábio Ricardo Coutinho Fontes
Matsumoto, Sylvana Naomi
Viana, Anselmo Eloy Silveira
Santos, Marcos Antônio Ferreira
Bonfim, Joice Andrade
dc.subject.por.fl_str_mv Coffee growing
Shading
Fisiologia da produção
Sombreamento
Light radiance
Cafeicultura
Stomata
Luminosidade
Estômatos
topic Coffee growing
Shading
Fisiologia da produção
Sombreamento
Light radiance
Cafeicultura
Stomata
Luminosidade
Estômatos
description The aim of this study was to evaluate the morphophysiological behavior of coffee leaves (Coffea arabica L.) maintained under different levels of artificial shading in initial vegetative phase. The experiment was carried out from January to June/2007, in agricultural field of Universidade Estadual do Sudoeste da Bahia – UESB, Vitória da Conquista, Bahia, Brazil. Four trials were carried out maintaining shading conditions (30, 50 and 70% of sun light radiance) and at a full sunlight, during 90 days after plantlet emergence. For each assay, Catuaí (IAC144), Catucaí 2SL and Acauã varieties were evaluated, following a randomized block design, considering number of leaves, leaf area, leaf relative water content, leaf water potential, number of ordinary epidermis and stomata cell and stomata index. Shading levels affect the water status of coffee plants, resulting in alterations of morphophysiology of leaves. Increase of leaf water content occurs simultaneously with decrease of modulus of water potential and proline content, denoting an interaction between shading and water content to coffee plants. Higher proline content was verified in Catuaí leaves in comparison to Catucaí variety. With light restriction there was a reduction of ordinary epidermis cell and stomata density. Upward of leaf area and leaf number was observed when the light restriction was similar or lower to 42,86 and 25,0 %, respectively.
publishDate 2011
dc.date.none.fl_str_mv 2011-03-31
2017-08-01T20:08:29Z
2017-08-01T20:08:29Z
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.coffeescience.ufla.br/index.php/Coffeescience/article/view/132
CÉSAR, F. R. C. F. et al. Morfofisiologia foliar de cafeeiro sob diferentes níveis de restrição luminosa. Coffee Science, Lavras, v. 5, n. 3, p. 262-271, set./dez. 2010.
http://repositorio.ufla.br/jspui/handle/1/13858
url http://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/132
http://repositorio.ufla.br/jspui/handle/1/13858
identifier_str_mv CÉSAR, F. R. C. F. et al. Morfofisiologia foliar de cafeeiro sob diferentes níveis de restrição luminosa. Coffee Science, Lavras, v. 5, n. 3, p. 262-271, set./dez. 2010.
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/132/pdf
dc.rights.driver.fl_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv 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.source.none.fl_str_mv Coffee Science; v. 5, n. 3 (2010); 262-271
Coffee Science; v. 5, n. 3 (2010); 262-271
Coffee Science; v. 5, n. 3 (2010); 262-271
1984-3909
1809-6875
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
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instname_str Universidade Federal de Lavras (UFLA)
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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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