A new concept for insect damage evaluation based on plant physiological variables

Detalhes bibliográficos
Autor(a) principal: Neves,Ademir D.
Data de Publicação: 2006
Outros Autores: Oliveira,Ricardo F., Parra,José R.P.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Anais da Academia Brasileira de Ciências (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652006000400015
Resumo: The objective of this study was to determine the damage levels caused by Orthezia praelonga Douglas, 1891 and Leucoptera coffeella (Guérin-Mèneville 1842), on rangpur lime and Obatã coffee leaves, respectively. Measurements were based on a new concept for the evaluation of the following plant physiological parameters: photosynthesis, stomatal conductance, leaf temperature and transpiration, and internal concentration of CO2 (by infrared analyzer). A negative correlation between infestation level and photosynthesis was found, where the negative inflexion point of the curve was considered as a reference for damage levels. The control level for O. praelonga is below the 7-13% limit for damaged leaf area (40 to 70 scales per leaf), while for L. coffeella it is below the 26-36% limit for the same variable. Photosynthesis provided the best correlation for this type of analysis.
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spelling A new concept for insect damage evaluation based on plant physiological variablesphotosynthesiseconomic level injurycitruscoffeeplant-insect interactionsThe objective of this study was to determine the damage levels caused by Orthezia praelonga Douglas, 1891 and Leucoptera coffeella (Guérin-Mèneville 1842), on rangpur lime and Obatã coffee leaves, respectively. Measurements were based on a new concept for the evaluation of the following plant physiological parameters: photosynthesis, stomatal conductance, leaf temperature and transpiration, and internal concentration of CO2 (by infrared analyzer). A negative correlation between infestation level and photosynthesis was found, where the negative inflexion point of the curve was considered as a reference for damage levels. The control level for O. praelonga is below the 7-13% limit for damaged leaf area (40 to 70 scales per leaf), while for L. coffeella it is below the 26-36% limit for the same variable. Photosynthesis provided the best correlation for this type of analysis.Academia Brasileira de Ciências2006-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652006000400015Anais da Academia Brasileira de Ciências v.78 n.4 2006reponame:Anais da Academia Brasileira de Ciências (Online)instname:Academia Brasileira de Ciências (ABC)instacron:ABC10.1590/S0001-37652006000400015info:eu-repo/semantics/openAccessNeves,Ademir D.Oliveira,Ricardo F.Parra,José R.P.eng2006-11-28T00:00:00Zoai:scielo:S0001-37652006000400015Revistahttp://www.scielo.br/aabchttps://old.scielo.br/oai/scielo-oai.php||aabc@abc.org.br1678-26900001-3765opendoar:2006-11-28T00:00Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC)false
dc.title.none.fl_str_mv A new concept for insect damage evaluation based on plant physiological variables
title A new concept for insect damage evaluation based on plant physiological variables
spellingShingle A new concept for insect damage evaluation based on plant physiological variables
Neves,Ademir D.
photosynthesis
economic level injury
citrus
coffee
plant-insect interactions
title_short A new concept for insect damage evaluation based on plant physiological variables
title_full A new concept for insect damage evaluation based on plant physiological variables
title_fullStr A new concept for insect damage evaluation based on plant physiological variables
title_full_unstemmed A new concept for insect damage evaluation based on plant physiological variables
title_sort A new concept for insect damage evaluation based on plant physiological variables
author Neves,Ademir D.
author_facet Neves,Ademir D.
Oliveira,Ricardo F.
Parra,José R.P.
author_role author
author2 Oliveira,Ricardo F.
Parra,José R.P.
author2_role author
author
dc.contributor.author.fl_str_mv Neves,Ademir D.
Oliveira,Ricardo F.
Parra,José R.P.
dc.subject.por.fl_str_mv photosynthesis
economic level injury
citrus
coffee
plant-insect interactions
topic photosynthesis
economic level injury
citrus
coffee
plant-insect interactions
description The objective of this study was to determine the damage levels caused by Orthezia praelonga Douglas, 1891 and Leucoptera coffeella (Guérin-Mèneville 1842), on rangpur lime and Obatã coffee leaves, respectively. Measurements were based on a new concept for the evaluation of the following plant physiological parameters: photosynthesis, stomatal conductance, leaf temperature and transpiration, and internal concentration of CO2 (by infrared analyzer). A negative correlation between infestation level and photosynthesis was found, where the negative inflexion point of the curve was considered as a reference for damage levels. The control level for O. praelonga is below the 7-13% limit for damaged leaf area (40 to 70 scales per leaf), while for L. coffeella it is below the 26-36% limit for the same variable. Photosynthesis provided the best correlation for this type of analysis.
publishDate 2006
dc.date.none.fl_str_mv 2006-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652006000400015
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652006000400015
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0001-37652006000400015
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Academia Brasileira de Ciências
publisher.none.fl_str_mv Academia Brasileira de Ciências
dc.source.none.fl_str_mv Anais da Academia Brasileira de Ciências v.78 n.4 2006
reponame:Anais da Academia Brasileira de Ciências (Online)
instname:Academia Brasileira de Ciências (ABC)
instacron:ABC
instname_str Academia Brasileira de Ciências (ABC)
instacron_str ABC
institution ABC
reponame_str Anais da Academia Brasileira de Ciências (Online)
collection Anais da Academia Brasileira de Ciências (Online)
repository.name.fl_str_mv Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC)
repository.mail.fl_str_mv ||aabc@abc.org.br
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