Spray droplet spectrum and control of Asian soybean rust in cultivars with different plant architecture

Detalhes bibliográficos
Autor(a) principal: Debortoli, Monica Paula
Data de Publicação: 2012
Outros Autores: Tormen, Nédio Rodrigo, Balardin, Ricardo Silveiro, Favera, Diego Dalla, Stefanello, Marlon Tagliapietra, Pinto, Felipe Frigo, Uebel, Juliano Daniel
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/11597
Resumo: The objective of this work was to determine the ideal spray droplet spectrum for the control of Asian soybean rust (Phakopsora pachyrhizi), in cultivars with different plant architecture. The experiment was carried out in the 2009/2010 crop season. Fungicide application (pyraclostrobin + epoxyconazole, with mineral oil) was evaluated with four spray droplet spectra – very fine, <119 μm; fine, 119 to 216 μm; medium, 217 to 352 μm; and coarse, 353 to 464 μm – in four soybean cultivars (BMX Apollo RR, NA 7636 RR, Fcep 53 RR, and TMG 4001 RR) contrasting as to leaf area index, plant height, and number of branches per plant. The following variables were quantified: number of drops per cm2, median volume diameter of droplets, area under the progress curve of soybean rust, and soybean yield. The definition of the droplet spectrum to be used should consider cultivar and environmental conditions in which the pulverization will be done. The protection magnitude exerted by the fungicide varies according to the plant coverage and the penetration of droplets into the canopy provided by the different droplet spectra. The fine droplet spectrum provides good droplet deposition, disease control, and productivity, regardless of the evaluated cultivar.
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spelling Spray droplet spectrum and control of Asian soybean rust in cultivars with different plant architectureEspectro de gotas de pulverização e controle da ferrugem‑asiática‑da‑soja em cultivares com diferentes arquiteturas de plantaPhakopsora pachyrhizi; plant coverage; chemical control; droplet deposition; canopy penetration; application technology.Phakopsora pachyrhizi; cobertura de plantas; controle químico; deposição de gotas; penetração no dossel; tecnologia de aplicação.The objective of this work was to determine the ideal spray droplet spectrum for the control of Asian soybean rust (Phakopsora pachyrhizi), in cultivars with different plant architecture. The experiment was carried out in the 2009/2010 crop season. Fungicide application (pyraclostrobin + epoxyconazole, with mineral oil) was evaluated with four spray droplet spectra – very fine, <119 μm; fine, 119 to 216 μm; medium, 217 to 352 μm; and coarse, 353 to 464 μm – in four soybean cultivars (BMX Apollo RR, NA 7636 RR, Fcep 53 RR, and TMG 4001 RR) contrasting as to leaf area index, plant height, and number of branches per plant. The following variables were quantified: number of drops per cm2, median volume diameter of droplets, area under the progress curve of soybean rust, and soybean yield. The definition of the droplet spectrum to be used should consider cultivar and environmental conditions in which the pulverization will be done. The protection magnitude exerted by the fungicide varies according to the plant coverage and the penetration of droplets into the canopy provided by the different droplet spectra. The fine droplet spectrum provides good droplet deposition, disease control, and productivity, regardless of the evaluated cultivar.O objetivo deste trabalho foi determinar o espectro de gotas de pulverização ideal para o controle da ferrugem‑asiática‑da‑soja (Phakopsora pachyrhizi), em cultivares com diferentes arquiteturas de planta. O experimento foi conduzido na safra de 2009/2010. A aplicação de fungicida (piraclostrobina + epoxiconazol, com óleo mineral) foi avaliada com quatro espectros de gotas de pulverização – muito fino, <119 μm; fino, 119 a 216 μm; médio, 217 a 352 μm; e grosso, 353 a 464 μm –, em quatro cultivares de soja (BMX Apollo RR, NA 7636 RR, Fcep 53 RR e TMG 4001 RR) contrastantes quanto a índice de área foliar, estatura de plantas e número de ramos por planta. Foram quantificadas as variáveis: número de gotas por cm2, diâmetro mediano volumétrico das gotas, área abaixo da curva de progresso da ferrugem-asiática e produtividade da soja. A definição do espectro de gotas a ser utilizado deve considerar a cultivar e as condições ambientais em que a pulverização será realizada. A magnitude da proteção exercida pelo fungicida varia de acordo com a cobertura de plantas e a penetração de gotas no dossel, proporcionada pelos diferentes espectros de gota. O espectro de gotas fino proporciona boa deposição de gotas, controle da doença e produtividade, independentemente da cultivar avaliada.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCapesDebortoli, Monica PaulaTormen, Nédio RodrigoBalardin, Ricardo SilveiroFavera, Diego DallaStefanello, Marlon TagliapietraPinto, Felipe FrigoUebel, Juliano Daniel2012-08-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/11597Pesquisa Agropecuaria Brasileira; v.47, n.7, jul. 2012; 922-929Pesquisa Agropecuária Brasileira; v.47, n.7, jul. 2012; 922-9291678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/11597/7469info:eu-repo/semantics/openAccess2012-08-17T14:18:35Zoai:ojs.seer.sct.embrapa.br:article/11597Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2012-08-17T14:18:35Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Spray droplet spectrum and control of Asian soybean rust in cultivars with different plant architecture
Espectro de gotas de pulverização e controle da ferrugem‑asiática‑da‑soja em cultivares com diferentes arquiteturas de planta
title Spray droplet spectrum and control of Asian soybean rust in cultivars with different plant architecture
spellingShingle Spray droplet spectrum and control of Asian soybean rust in cultivars with different plant architecture
Debortoli, Monica Paula
Phakopsora pachyrhizi; plant coverage; chemical control; droplet deposition; canopy penetration; application technology.
Phakopsora pachyrhizi; cobertura de plantas; controle químico; deposição de gotas; penetração no dossel; tecnologia de aplicação.
title_short Spray droplet spectrum and control of Asian soybean rust in cultivars with different plant architecture
title_full Spray droplet spectrum and control of Asian soybean rust in cultivars with different plant architecture
title_fullStr Spray droplet spectrum and control of Asian soybean rust in cultivars with different plant architecture
title_full_unstemmed Spray droplet spectrum and control of Asian soybean rust in cultivars with different plant architecture
title_sort Spray droplet spectrum and control of Asian soybean rust in cultivars with different plant architecture
author Debortoli, Monica Paula
author_facet Debortoli, Monica Paula
Tormen, Nédio Rodrigo
Balardin, Ricardo Silveiro
Favera, Diego Dalla
Stefanello, Marlon Tagliapietra
Pinto, Felipe Frigo
Uebel, Juliano Daniel
author_role author
author2 Tormen, Nédio Rodrigo
Balardin, Ricardo Silveiro
Favera, Diego Dalla
Stefanello, Marlon Tagliapietra
Pinto, Felipe Frigo
Uebel, Juliano Daniel
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv
Capes
dc.contributor.author.fl_str_mv Debortoli, Monica Paula
Tormen, Nédio Rodrigo
Balardin, Ricardo Silveiro
Favera, Diego Dalla
Stefanello, Marlon Tagliapietra
Pinto, Felipe Frigo
Uebel, Juliano Daniel
dc.subject.por.fl_str_mv Phakopsora pachyrhizi; plant coverage; chemical control; droplet deposition; canopy penetration; application technology.
Phakopsora pachyrhizi; cobertura de plantas; controle químico; deposição de gotas; penetração no dossel; tecnologia de aplicação.
topic Phakopsora pachyrhizi; plant coverage; chemical control; droplet deposition; canopy penetration; application technology.
Phakopsora pachyrhizi; cobertura de plantas; controle químico; deposição de gotas; penetração no dossel; tecnologia de aplicação.
description The objective of this work was to determine the ideal spray droplet spectrum for the control of Asian soybean rust (Phakopsora pachyrhizi), in cultivars with different plant architecture. The experiment was carried out in the 2009/2010 crop season. Fungicide application (pyraclostrobin + epoxyconazole, with mineral oil) was evaluated with four spray droplet spectra – very fine, <119 μm; fine, 119 to 216 μm; medium, 217 to 352 μm; and coarse, 353 to 464 μm – in four soybean cultivars (BMX Apollo RR, NA 7636 RR, Fcep 53 RR, and TMG 4001 RR) contrasting as to leaf area index, plant height, and number of branches per plant. The following variables were quantified: number of drops per cm2, median volume diameter of droplets, area under the progress curve of soybean rust, and soybean yield. The definition of the droplet spectrum to be used should consider cultivar and environmental conditions in which the pulverization will be done. The protection magnitude exerted by the fungicide varies according to the plant coverage and the penetration of droplets into the canopy provided by the different droplet spectra. The fine droplet spectrum provides good droplet deposition, disease control, and productivity, regardless of the evaluated cultivar.
publishDate 2012
dc.date.none.fl_str_mv 2012-08-13
dc.type.none.fl_str_mv
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://seer.sct.embrapa.br/index.php/pab/article/view/11597
url https://seer.sct.embrapa.br/index.php/pab/article/view/11597
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/11597/7469
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 Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.47, n.7, jul. 2012; 922-929
Pesquisa Agropecuária Brasileira; v.47, n.7, jul. 2012; 922-929
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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