Reaction of onion cultivars to anthracnose

Detalhes bibliográficos
Autor(a) principal: Wordell Filho, João Américo
Data de Publicação: 2021
Outros Autores: Stadnik, Marciel João
Tipo de documento: Artigo
Idioma: por
Título da fonte: Agropecuária Catarinense (Online)
Texto Completo: https://publicacoes.epagri.sc.gov.br/rac/article/view/812
Resumo: The leaf anthracnose caused by Colletotrichum gloeosporioides occurs in high incidence in onion(Allium cepa) crops of southern Brazil. In order to better understand the symptomatological patterns and to screen resistant cultivars, the reaction to anthracnose and the disease progress rate were evaluated on 21 onion cultivars under greenhouse conditions during the cycle 2004/05, in Ituporanga, SC. Plants were inoculated byspraying a suspension of 1.2 x 106 conidia/ml. Inoculated plants never died, but did show different levels of diseaseseverity. No variety was completely resistant to the tested isolate. However, about half of the cultivars, i.e., the cultivars Alfa Tropical, Alfa Tropical II, Belém IPA 9, Crioula Hortec, Crioula Roxa, Epagri 304, IPA 6, Régia, Rosada Empasc 358, Roxa IPA 3 and Super Precoce, exhibited lower disease progress rates, suggesting the existenceof several sources of partial resistance.
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spelling Reaction of onion cultivars to anthracnoseReação de cultivares de cebola à antracnoseAllium ceparesistência parcialColletotrichum gloeosporioidesAllium cepapartial resistanceColletotrichum gloeosporioidesThe leaf anthracnose caused by Colletotrichum gloeosporioides occurs in high incidence in onion(Allium cepa) crops of southern Brazil. In order to better understand the symptomatological patterns and to screen resistant cultivars, the reaction to anthracnose and the disease progress rate were evaluated on 21 onion cultivars under greenhouse conditions during the cycle 2004/05, in Ituporanga, SC. Plants were inoculated byspraying a suspension of 1.2 x 106 conidia/ml. Inoculated plants never died, but did show different levels of diseaseseverity. No variety was completely resistant to the tested isolate. However, about half of the cultivars, i.e., the cultivars Alfa Tropical, Alfa Tropical II, Belém IPA 9, Crioula Hortec, Crioula Roxa, Epagri 304, IPA 6, Régia, Rosada Empasc 358, Roxa IPA 3 and Super Precoce, exhibited lower disease progress rates, suggesting the existenceof several sources of partial resistance. A antracnose foliar ou mal-das-sete-voltas, doença causada pelo fungo Colletotrichum gloeosporioides, tem elevada incidência na cultura da cebola (Allium cepa) no sul do Brasil. Com a finalidade de esclarecer essequadro sintomatológico e selecionar cultivares resistentes, foi avaliada a reação à antracnose e a taxa de progresso da doença em 21 cultivares de cebola, sob condições de casa de vegetação, no ciclo 2004/05, em Ituporanga, SC. As plantas foram inoculadas por aspersão de uma suspensão de 1,2 x 106 conídios/ml. As plantas inoculadas nãomorreram, mas apresentaram diferentes níveis de severidade da doença. Nenhuma cultivar testada revelou resistência completa, mas as cultivares Alfa Tropical, Alfa Tropical II, Belém IPA 9, Crioula Hortec, Crioula Roxa,Epagri 304, IPA 6, Régia, Rosada Empasc 358, Roxa IPA 3 e Super Precoce apresentaram as menores taxas de progresso, sugerindo a existência de várias fontes de resistência parcial. Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri2021-01-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://publicacoes.epagri.sc.gov.br/rac/article/view/812Agropecuária Catarinense Journal; Vol. 22 No. 1 (2009); 82-86Agropecuária Catarinense; v. 22 n. 1 (2009); 82-862525-60760103-0779reponame:Agropecuária Catarinense (Online)instname:Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)instacron:EPAGRIporhttps://publicacoes.epagri.sc.gov.br/rac/article/view/812/720Copyright (c) 2020 Revista Agropecuária Catarinensehttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessWordell Filho, João AméricoStadnik, Marciel João 2021-01-26T13:25:41Zoai:ojs.publicacoes.epagri.sc.gov.br:article/812Revistahttps://publicacoes.epagri.sc.gov.br/RAC/indexPUBhttps://publicacoes.epagri.sc.gov.br/index.php/RAC/oaieditoriarac@epagri.sc.gov.br || lamperuch@epagri.sc.gov.br2525-60760103-0779opendoar:2021-01-26T13:25:41Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)false
dc.title.none.fl_str_mv Reaction of onion cultivars to anthracnose
Reação de cultivares de cebola à antracnose
title Reaction of onion cultivars to anthracnose
spellingShingle Reaction of onion cultivars to anthracnose
Wordell Filho, João Américo
Allium cepa
resistência parcial
Colletotrichum gloeosporioides
Allium cepa
partial resistance
Colletotrichum gloeosporioides
title_short Reaction of onion cultivars to anthracnose
title_full Reaction of onion cultivars to anthracnose
title_fullStr Reaction of onion cultivars to anthracnose
title_full_unstemmed Reaction of onion cultivars to anthracnose
title_sort Reaction of onion cultivars to anthracnose
author Wordell Filho, João Américo
author_facet Wordell Filho, João Américo
Stadnik, Marciel João
author_role author
author2 Stadnik, Marciel João
author2_role author
dc.contributor.author.fl_str_mv Wordell Filho, João Américo
Stadnik, Marciel João
dc.subject.por.fl_str_mv Allium cepa
resistência parcial
Colletotrichum gloeosporioides
Allium cepa
partial resistance
Colletotrichum gloeosporioides
topic Allium cepa
resistência parcial
Colletotrichum gloeosporioides
Allium cepa
partial resistance
Colletotrichum gloeosporioides
description The leaf anthracnose caused by Colletotrichum gloeosporioides occurs in high incidence in onion(Allium cepa) crops of southern Brazil. In order to better understand the symptomatological patterns and to screen resistant cultivars, the reaction to anthracnose and the disease progress rate were evaluated on 21 onion cultivars under greenhouse conditions during the cycle 2004/05, in Ituporanga, SC. Plants were inoculated byspraying a suspension of 1.2 x 106 conidia/ml. Inoculated plants never died, but did show different levels of diseaseseverity. No variety was completely resistant to the tested isolate. However, about half of the cultivars, i.e., the cultivars Alfa Tropical, Alfa Tropical II, Belém IPA 9, Crioula Hortec, Crioula Roxa, Epagri 304, IPA 6, Régia, Rosada Empasc 358, Roxa IPA 3 and Super Precoce, exhibited lower disease progress rates, suggesting the existenceof several sources of partial resistance.
publishDate 2021
dc.date.none.fl_str_mv 2021-01-26
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://publicacoes.epagri.sc.gov.br/rac/article/view/812
url https://publicacoes.epagri.sc.gov.br/rac/article/view/812
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://publicacoes.epagri.sc.gov.br/rac/article/view/812/720
dc.rights.driver.fl_str_mv Copyright (c) 2020 Revista Agropecuária Catarinense
https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Revista Agropecuária Catarinense
https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri
publisher.none.fl_str_mv Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri
dc.source.none.fl_str_mv Agropecuária Catarinense Journal; Vol. 22 No. 1 (2009); 82-86
Agropecuária Catarinense; v. 22 n. 1 (2009); 82-86
2525-6076
0103-0779
reponame:Agropecuária Catarinense (Online)
instname:Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
instacron:EPAGRI
instname_str Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
instacron_str EPAGRI
institution EPAGRI
reponame_str Agropecuária Catarinense (Online)
collection Agropecuária Catarinense (Online)
repository.name.fl_str_mv Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
repository.mail.fl_str_mv editoriarac@epagri.sc.gov.br || lamperuch@epagri.sc.gov.br
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