Spray nozzles and time of fungicide application on Asian soybean rust control

Detalhes bibliográficos
Autor(a) principal: Nascimento, Jackeline Matos do
Data de Publicação: 2013
Outros Autores: Gavassoni, Walber Luiz, Souza, Cristiano Marcio Alves de, Bacchi, Lillian Maria Arruda, Serra, Ademar Pereira, Zaccaron, Márcio Leizer
Tipo de documento: Artigo
Idioma: por
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/11011
Resumo: Spray nozzles were evaluated at two different spraying times (14h and 17h 30m), in Mato Grosso do Sul, Brazil regarding Asian soybean rust control (Phakopsora pachyrhizi Sidow). Four spray nozzles were evaluated: deflector plain tips, double deflector plain tips, extended range flat spray tips and double plain tips. A commercial formulation of epoxiconazole and pyraclostrobin (0,5 L ha-1) was sprayed in the plots. Soybean leaves were collected at the top, middle and lower canopy, for assessment of the number of lesions and uredinias. In addition, leaf area affected by P. pachyrhizi was estimated. Plots sprayed with double deflector plain tips had lower uredinia counts in the lower canopy compared to the other tips tested. Sprays done early in the afternoon with double deflector plain nozzles had lower uredinia counts compared to the other treatments. Smaller defoliation and greater a-thousand grain mass were detected in plots sprayed with fungicide using a double deflector plain tip compared to the deflector plain nozzle. Soybean yield was not affected by nozzles and time of fungicide spray.
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spelling Spray nozzles and time of fungicide application on Asian soybean rust controlPontas de pulverização e horários de aplicação no controle químico de ferrugem asiática da sojaGlycine MaxPhakopsora pachyrhiziDisease controlSpraying technology.Glycine MaxPhakopsora pachyrhiziControle de doençaTecnologia de aplicação.5.01.02.01-0Spray nozzles were evaluated at two different spraying times (14h and 17h 30m), in Mato Grosso do Sul, Brazil regarding Asian soybean rust control (Phakopsora pachyrhizi Sidow). Four spray nozzles were evaluated: deflector plain tips, double deflector plain tips, extended range flat spray tips and double plain tips. A commercial formulation of epoxiconazole and pyraclostrobin (0,5 L ha-1) was sprayed in the plots. Soybean leaves were collected at the top, middle and lower canopy, for assessment of the number of lesions and uredinias. In addition, leaf area affected by P. pachyrhizi was estimated. Plots sprayed with double deflector plain tips had lower uredinia counts in the lower canopy compared to the other tips tested. Sprays done early in the afternoon with double deflector plain nozzles had lower uredinia counts compared to the other treatments. Smaller defoliation and greater a-thousand grain mass were detected in plots sprayed with fungicide using a double deflector plain tip compared to the deflector plain nozzle. Soybean yield was not affected by nozzles and time of fungicide spray.O trabalho foi desenvolvido em Dourados-MS, com o objetivo de estudar o efeito de pontas de pulverização e horários de aplicação de fungicida no controle químico da ferrugem asiática da soja (Phakopsora pachyrhizi Sidow). Avaliaram-se quatro pontas de pulverização: jato plano defletor, jato plano defletor duplo, já to plano de faixa ampliada, jato plano duplo. As aplicações ocorreram nos horários de 14h e 17h 30min com pulverizador costal à pressão constante. O fungicida utilizado foi uma formulação comercial de epoxiconazol e piraclostrobina (0,5 L ha-1). Foram coletados folíolos nos terços superior, médio e inferior para avaliação do número de lesões, urédias, e área foliar lesionada. Menor número de urédias no terço inferior foi observado em plantas que receberam aplicação de fungicida às 14h via ponta jato plano defletor duplo em relação às demais pontas. A aplicação de fungicida, independente do tipo de ponta, não resultou em alterações nos níveis de controle da ferrugem asiática nos terços superior e médio. Menor desfolha e maior massa de mil grãos foram detectadas quando a aplicação foi realizada com a ponta jato plano defletor duplo em relação à jato plano defletor. A produtividade não foi afetada pelo uso de diferentes pontas e horários de aplicação do fungicida.UEL2013-10-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa cientificaapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/1101110.5433/1679-0359.2013v34n5p2037Semina: Ciências Agrárias; Vol. 34 No. 5 (2013); 2037-2048Semina: Ciências Agrárias; v. 34 n. 5 (2013); 2037-20481679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/11011/pdf_5Nascimento, Jackeline Matos doGavassoni, Walber LuizSouza, Cristiano Marcio Alves deBacchi, Lillian Maria ArrudaSerra, Ademar PereiraZaccaron, Márcio Leizerinfo:eu-repo/semantics/openAccess2015-11-19T18:36:24Zoai:ojs.pkp.sfu.ca:article/11011Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2015-11-19T18:36:24Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Spray nozzles and time of fungicide application on Asian soybean rust control
Pontas de pulverização e horários de aplicação no controle químico de ferrugem asiática da soja
title Spray nozzles and time of fungicide application on Asian soybean rust control
spellingShingle Spray nozzles and time of fungicide application on Asian soybean rust control
Nascimento, Jackeline Matos do
Glycine Max
Phakopsora pachyrhizi
Disease control
Spraying technology.
Glycine Max
Phakopsora pachyrhizi
Controle de doença
Tecnologia de aplicação.
5.01.02.01-0
title_short Spray nozzles and time of fungicide application on Asian soybean rust control
title_full Spray nozzles and time of fungicide application on Asian soybean rust control
title_fullStr Spray nozzles and time of fungicide application on Asian soybean rust control
title_full_unstemmed Spray nozzles and time of fungicide application on Asian soybean rust control
title_sort Spray nozzles and time of fungicide application on Asian soybean rust control
author Nascimento, Jackeline Matos do
author_facet Nascimento, Jackeline Matos do
Gavassoni, Walber Luiz
Souza, Cristiano Marcio Alves de
Bacchi, Lillian Maria Arruda
Serra, Ademar Pereira
Zaccaron, Márcio Leizer
author_role author
author2 Gavassoni, Walber Luiz
Souza, Cristiano Marcio Alves de
Bacchi, Lillian Maria Arruda
Serra, Ademar Pereira
Zaccaron, Márcio Leizer
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Nascimento, Jackeline Matos do
Gavassoni, Walber Luiz
Souza, Cristiano Marcio Alves de
Bacchi, Lillian Maria Arruda
Serra, Ademar Pereira
Zaccaron, Márcio Leizer
dc.subject.por.fl_str_mv Glycine Max
Phakopsora pachyrhizi
Disease control
Spraying technology.
Glycine Max
Phakopsora pachyrhizi
Controle de doença
Tecnologia de aplicação.
5.01.02.01-0
topic Glycine Max
Phakopsora pachyrhizi
Disease control
Spraying technology.
Glycine Max
Phakopsora pachyrhizi
Controle de doença
Tecnologia de aplicação.
5.01.02.01-0
description Spray nozzles were evaluated at two different spraying times (14h and 17h 30m), in Mato Grosso do Sul, Brazil regarding Asian soybean rust control (Phakopsora pachyrhizi Sidow). Four spray nozzles were evaluated: deflector plain tips, double deflector plain tips, extended range flat spray tips and double plain tips. A commercial formulation of epoxiconazole and pyraclostrobin (0,5 L ha-1) was sprayed in the plots. Soybean leaves were collected at the top, middle and lower canopy, for assessment of the number of lesions and uredinias. In addition, leaf area affected by P. pachyrhizi was estimated. Plots sprayed with double deflector plain tips had lower uredinia counts in the lower canopy compared to the other tips tested. Sprays done early in the afternoon with double deflector plain nozzles had lower uredinia counts compared to the other treatments. Smaller defoliation and greater a-thousand grain mass were detected in plots sprayed with fungicide using a double deflector plain tip compared to the deflector plain nozzle. Soybean yield was not affected by nozzles and time of fungicide spray.
publishDate 2013
dc.date.none.fl_str_mv 2013-10-17
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Pesquisa cientifica
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/11011
10.5433/1679-0359.2013v34n5p2037
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/11011
identifier_str_mv 10.5433/1679-0359.2013v34n5p2037
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/11011/pdf_5
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 34 No. 5 (2013); 2037-2048
Semina: Ciências Agrárias; v. 34 n. 5 (2013); 2037-2048
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
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