Resistance induction in wheat plants by silicon and aphids

Detalhes bibliográficos
Autor(a) principal: Gomes,Flávia Batista
Data de Publicação: 2005
Outros Autores: Moraes,Jair Campos de, Santos,Custódio Donizete dos, Goussain,Márcio Marcos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000600006
Resumo: The pest greenbug Schizaphis graminum (Rondani) (Hemiptera: Aphididae) stands out among the factors limiting Brazilian wheat production. Chemical control is predominant in aphid management making the production dependent on insecticides. The effect of silicon and previous infestation with aphids on the induction of resistance to the greenbug was evaluated in wheat plants. Treatments consisted of control; fertilization with calcium silicate; plant infestation with aphids; fertilization with calcium silicate + plant infestation with aphids. A free-choice preference test was performed 35 days after seedling emergence; the aphid's intrinsic rate of population increase (r m) was also determined, and the activities of three enzymes (peroxidase, polyphenoloxidase, and phenylalanine ammonia-lyase) involved in plant defense were quantified. Silicon fertilization and the previous infestation with aphids induced wheat plant resistance to the greenbug.
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spelling Resistance induction in wheat plants by silicon and aphidsSchizaphis graminumTriticum aestivumpest managementinduced resistancehost plant resistanceThe pest greenbug Schizaphis graminum (Rondani) (Hemiptera: Aphididae) stands out among the factors limiting Brazilian wheat production. Chemical control is predominant in aphid management making the production dependent on insecticides. The effect of silicon and previous infestation with aphids on the induction of resistance to the greenbug was evaluated in wheat plants. Treatments consisted of control; fertilization with calcium silicate; plant infestation with aphids; fertilization with calcium silicate + plant infestation with aphids. A free-choice preference test was performed 35 days after seedling emergence; the aphid's intrinsic rate of population increase (r m) was also determined, and the activities of three enzymes (peroxidase, polyphenoloxidase, and phenylalanine ammonia-lyase) involved in plant defense were quantified. Silicon fertilization and the previous infestation with aphids induced wheat plant resistance to the greenbug.Escola Superior de Agricultura "Luiz de Queiroz"2005-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000600006Scientia Agricola v.62 n.6 2005reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0103-90162005000600006info:eu-repo/semantics/openAccessGomes,Flávia BatistaMoraes,Jair Campos deSantos,Custódio Donizete dosGoussain,Márcio Marcoseng2005-12-12T00:00:00Zoai:scielo:S0103-90162005000600006Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2005-12-12T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Resistance induction in wheat plants by silicon and aphids
title Resistance induction in wheat plants by silicon and aphids
spellingShingle Resistance induction in wheat plants by silicon and aphids
Gomes,Flávia Batista
Schizaphis graminum
Triticum aestivum
pest management
induced resistance
host plant resistance
title_short Resistance induction in wheat plants by silicon and aphids
title_full Resistance induction in wheat plants by silicon and aphids
title_fullStr Resistance induction in wheat plants by silicon and aphids
title_full_unstemmed Resistance induction in wheat plants by silicon and aphids
title_sort Resistance induction in wheat plants by silicon and aphids
author Gomes,Flávia Batista
author_facet Gomes,Flávia Batista
Moraes,Jair Campos de
Santos,Custódio Donizete dos
Goussain,Márcio Marcos
author_role author
author2 Moraes,Jair Campos de
Santos,Custódio Donizete dos
Goussain,Márcio Marcos
author2_role author
author
author
dc.contributor.author.fl_str_mv Gomes,Flávia Batista
Moraes,Jair Campos de
Santos,Custódio Donizete dos
Goussain,Márcio Marcos
dc.subject.por.fl_str_mv Schizaphis graminum
Triticum aestivum
pest management
induced resistance
host plant resistance
topic Schizaphis graminum
Triticum aestivum
pest management
induced resistance
host plant resistance
description The pest greenbug Schizaphis graminum (Rondani) (Hemiptera: Aphididae) stands out among the factors limiting Brazilian wheat production. Chemical control is predominant in aphid management making the production dependent on insecticides. The effect of silicon and previous infestation with aphids on the induction of resistance to the greenbug was evaluated in wheat plants. Treatments consisted of control; fertilization with calcium silicate; plant infestation with aphids; fertilization with calcium silicate + plant infestation with aphids. A free-choice preference test was performed 35 days after seedling emergence; the aphid's intrinsic rate of population increase (r m) was also determined, and the activities of three enzymes (peroxidase, polyphenoloxidase, and phenylalanine ammonia-lyase) involved in plant defense were quantified. Silicon fertilization and the previous infestation with aphids induced wheat plant resistance to the greenbug.
publishDate 2005
dc.date.none.fl_str_mv 2005-12-01
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=S0103-90162005000600006
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000600006
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-90162005000600006
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 Escola Superior de Agricultura "Luiz de Queiroz"
publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
dc.source.none.fl_str_mv Scientia Agricola v.62 n.6 2005
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
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