Leaf area of whole and damaged coffee leaves (Coffea arabica L.) determined by leaf dimensions and digital imaging

Detalhes bibliográficos
Autor(a) principal: Flumignan, Danilton Luiz
Data de Publicação: 2008
Outros Autores: Adami, Marcos, Faria, Rogério Teixeira de
Tipo de documento: Artigo
Idioma: por
eng
Título da fonte: Coffee Science (Online)
Texto Completo: https://coffeescience.ufla.br/index.php/Coffeescience/article/view/67
Resumo: Leaf area (LA) is an indicative of crop yield and is required in most agronomic and physiological studies. In this work, two methods to measure coffee leaf area, one based on leaf dimensions and the other on digital imaging, were compared to the standard LI-COR method, using whole and damaged leaves. The digital image measurements, taken in the lab (destructive sample) and in the field (non-destructive sample), were also compared. It was concluded that the leaf dimensions based method estimated adequately the LA of whole leaves, but was not suitable for damaged leaves. The digital imaging method measured, with great precision, the LA of both, whole and damaged leaves. Therefore, this method can substitute the LI-COR method, with the advantage of being non-destructive, low cost and portable.
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spelling Leaf area of whole and damaged coffee leaves (Coffea arabica L.) determined by leaf dimensions and digital imagingÁrea foliar de folhas íntegras e danificadas de cafeeiro determinada por dimensões foliares e imagem digitalLeaf area indexspringLI-CORCoffea arabicaÍndice de área foliarsoftware springintegrador de área foliarCoffea arabicaLeaf area (LA) is an indicative of crop yield and is required in most agronomic and physiological studies. In this work, two methods to measure coffee leaf area, one based on leaf dimensions and the other on digital imaging, were compared to the standard LI-COR method, using whole and damaged leaves. The digital image measurements, taken in the lab (destructive sample) and in the field (non-destructive sample), were also compared. It was concluded that the leaf dimensions based method estimated adequately the LA of whole leaves, but was not suitable for damaged leaves. The digital imaging method measured, with great precision, the LA of both, whole and damaged leaves. Therefore, this method can substitute the LI-COR method, with the advantage of being non-destructive, low cost and portable.A quantidade de área foliar (AF) é um indicativo de produtividade dos cultivos, além de ser requerida para a maioria dos estudos agronômicos e fisiológicos. Avaliou-se o desempenho de métodos baseados em dimensões foliares e imagem digital na determinação de AF de cafeeiro (Coffea arabica L.), em relação ao método integrador de AF, em duas situações: folhas íntegras e danificadas. Foram também avaliadas as medidas do método imagem digital quando as imagens foram obtidas no campo (amostra indestrutiva) e no laboratório (amostra destrutiva). Concluiu-se que o método dimensões foliares estima adequadamente AF de folhas íntegras de cafeeiro, porém, é inadequado para folhas danificadas. O método imagem digital apresenta ótima precisão para medir AF de folhas íntegras e danificadas de cafeeiro, tanto no laboratório quanto no campo. Conseqüentemente, esse método pode substituir, com vantagem, o método integrador de AF, por ser não destrutivo, de baixo custo e portátil.Editora UFLA2008-11-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://coffeescience.ufla.br/index.php/Coffeescience/article/view/67Coffee Science - ISSN 1984-3909; Vol. 3 No. 1 (2008); 1-6Coffee Science; Vol. 3 Núm. 1 (2008); 1-6Coffee Science; v. 3 n. 1 (2008); 1-61984-3909reponame:Coffee Science (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLAporenghttps://coffeescience.ufla.br/index.php/Coffeescience/article/view/67/133https://coffeescience.ufla.br/index.php/Coffeescience/article/view/67/134Copyright (c) 2008 Coffee Science - ISSN 1984-3909https://creativecommons.org/info:eu-repo/semantics/openAccessFlumignan, Danilton LuizAdami, MarcosFaria, Rogério Teixeira de2013-02-23T12:44:26Zoai:coffeescience.ufla.br:article/67Revistahttps://coffeescience.ufla.br/index.php/CoffeesciencePUBhttps://coffeescience.ufla.br/index.php/Coffeescience/oaicoffeescience@dag.ufla.br||coffeescience@dag.ufla.br|| alvaro-cozadi@hotmail.com1984-39091809-6875opendoar:2024-05-21T19:53:28.861975Coffee Science (Online) - Universidade Federal de Lavras (UFLA)true
dc.title.none.fl_str_mv Leaf area of whole and damaged coffee leaves (Coffea arabica L.) determined by leaf dimensions and digital imaging
Área foliar de folhas íntegras e danificadas de cafeeiro determinada por dimensões foliares e imagem digital
title Leaf area of whole and damaged coffee leaves (Coffea arabica L.) determined by leaf dimensions and digital imaging
spellingShingle Leaf area of whole and damaged coffee leaves (Coffea arabica L.) determined by leaf dimensions and digital imaging
Flumignan, Danilton Luiz
Leaf area index
spring
LI-COR
Coffea arabica
Índice de área foliar
software spring
integrador de área foliar
Coffea arabica
title_short Leaf area of whole and damaged coffee leaves (Coffea arabica L.) determined by leaf dimensions and digital imaging
title_full Leaf area of whole and damaged coffee leaves (Coffea arabica L.) determined by leaf dimensions and digital imaging
title_fullStr Leaf area of whole and damaged coffee leaves (Coffea arabica L.) determined by leaf dimensions and digital imaging
title_full_unstemmed Leaf area of whole and damaged coffee leaves (Coffea arabica L.) determined by leaf dimensions and digital imaging
title_sort Leaf area of whole and damaged coffee leaves (Coffea arabica L.) determined by leaf dimensions and digital imaging
author Flumignan, Danilton Luiz
author_facet Flumignan, Danilton Luiz
Adami, Marcos
Faria, Rogério Teixeira de
author_role author
author2 Adami, Marcos
Faria, Rogério Teixeira de
author2_role author
author
dc.contributor.author.fl_str_mv Flumignan, Danilton Luiz
Adami, Marcos
Faria, Rogério Teixeira de
dc.subject.por.fl_str_mv Leaf area index
spring
LI-COR
Coffea arabica
Índice de área foliar
software spring
integrador de área foliar
Coffea arabica
topic Leaf area index
spring
LI-COR
Coffea arabica
Índice de área foliar
software spring
integrador de área foliar
Coffea arabica
description Leaf area (LA) is an indicative of crop yield and is required in most agronomic and physiological studies. In this work, two methods to measure coffee leaf area, one based on leaf dimensions and the other on digital imaging, were compared to the standard LI-COR method, using whole and damaged leaves. The digital image measurements, taken in the lab (destructive sample) and in the field (non-destructive sample), were also compared. It was concluded that the leaf dimensions based method estimated adequately the LA of whole leaves, but was not suitable for damaged leaves. The digital imaging method measured, with great precision, the LA of both, whole and damaged leaves. Therefore, this method can substitute the LI-COR method, with the advantage of being non-destructive, low cost and portable.
publishDate 2008
dc.date.none.fl_str_mv 2008-11-07
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://coffeescience.ufla.br/index.php/Coffeescience/article/view/67
url https://coffeescience.ufla.br/index.php/Coffeescience/article/view/67
dc.language.iso.fl_str_mv por
eng
language por
eng
dc.relation.none.fl_str_mv https://coffeescience.ufla.br/index.php/Coffeescience/article/view/67/133
https://coffeescience.ufla.br/index.php/Coffeescience/article/view/67/134
dc.rights.driver.fl_str_mv Copyright (c) 2008 Coffee Science - ISSN 1984-3909
https://creativecommons.org/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2008 Coffee Science - ISSN 1984-3909
https://creativecommons.org/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Editora UFLA
publisher.none.fl_str_mv Editora UFLA
dc.source.none.fl_str_mv Coffee Science - ISSN 1984-3909; Vol. 3 No. 1 (2008); 1-6
Coffee Science; Vol. 3 Núm. 1 (2008); 1-6
Coffee Science; v. 3 n. 1 (2008); 1-6
1984-3909
reponame:Coffee Science (Online)
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Coffee Science (Online)
collection Coffee Science (Online)
repository.name.fl_str_mv Coffee Science (Online) - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv coffeescience@dag.ufla.br||coffeescience@dag.ufla.br|| alvaro-cozadi@hotmail.com
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