Susceptibility of clonal seedlings of Eucalyptus spp. to powdery mildew disease

Detalhes bibliográficos
Autor(a) principal: Bovolini, Marciéli Pitorini
Data de Publicação: 2018
Outros Autores: Lazarotto, Marília, Gonzatto, Mateus Pereira, Borges Junior, Norton, Lanna Filho, Roberto
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/185278
Resumo: Powdery mildew is one of the main diseases in eucalyptus clonal nursery. The present work aimed to confirm the identity of the causal agent of powdery mildew in clonal seedlings of Eucalyptus spp., and to evaluate the susceptibility reaction of clones to this disease. Conidia were collected in minigardens for molecular identification of the pathogen. We assessed susceptibility by testing 4 clones: Clone 1 (Eucalyptus benthamii), Clone 2 (E. dunni), Clone 3 (E. benthamii) and Clone 4 (E. urophylla x E. globulus). Scale of classes was used for calculations of Disease Index (DI) and Final Incidence (I). Temporal analysis was performed using the Logistic and Gompertz models. The molecular identification confirmed the identity of the isolates approximate to Podosphaera pannosa (teleomorphic phase of Oidium eucalypti). The Gompertz model obtained a better adjustment to the severity and incidence data, and clones 1 and 2 showed greater susceptibility to eucalyptus powdery mildew.
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spelling Bovolini, Marciéli PitoriniLazarotto, MaríliaGonzatto, Mateus PereiraBorges Junior, NortonLanna Filho, Roberto2018-11-30T02:42:44Z20182179-8087http://hdl.handle.net/10183/185278001080911Powdery mildew is one of the main diseases in eucalyptus clonal nursery. The present work aimed to confirm the identity of the causal agent of powdery mildew in clonal seedlings of Eucalyptus spp., and to evaluate the susceptibility reaction of clones to this disease. Conidia were collected in minigardens for molecular identification of the pathogen. We assessed susceptibility by testing 4 clones: Clone 1 (Eucalyptus benthamii), Clone 2 (E. dunni), Clone 3 (E. benthamii) and Clone 4 (E. urophylla x E. globulus). Scale of classes was used for calculations of Disease Index (DI) and Final Incidence (I). Temporal analysis was performed using the Logistic and Gompertz models. The molecular identification confirmed the identity of the isolates approximate to Podosphaera pannosa (teleomorphic phase of Oidium eucalypti). The Gompertz model obtained a better adjustment to the severity and incidence data, and clones 1 and 2 showed greater susceptibility to eucalyptus powdery mildew.application/pdfengFloresta e Ambiente. Rio de Janeiro. Vol. 25, n. 3, (2018), [art.] e20170597OídioEucaliptoDoença de plantaPlântulaClonal nurseryOidium eucalyptiIncidenceSusceptibility of clonal seedlings of Eucalyptus spp. to powdery mildew diseaseinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001080911.pdf.txt001080911.pdf.txtExtracted Texttext/plain33470http://www.lume.ufrgs.br/bitstream/10183/185278/2/001080911.pdf.txt80327f056211507ef4ffa9f126ceccbcMD52ORIGINAL001080911.pdfTexto completo (inglês)application/pdf1315772http://www.lume.ufrgs.br/bitstream/10183/185278/1/001080911.pdf73e3ca4ee598da9e6149ba9a6ca19dffMD5110183/1852782018-12-01 03:13:27.477971oai:www.lume.ufrgs.br:10183/185278Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-12-01T05:13:27Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Susceptibility of clonal seedlings of Eucalyptus spp. to powdery mildew disease
title Susceptibility of clonal seedlings of Eucalyptus spp. to powdery mildew disease
spellingShingle Susceptibility of clonal seedlings of Eucalyptus spp. to powdery mildew disease
Bovolini, Marciéli Pitorini
Oídio
Eucalipto
Doença de planta
Plântula
Clonal nursery
Oidium eucalypti
Incidence
title_short Susceptibility of clonal seedlings of Eucalyptus spp. to powdery mildew disease
title_full Susceptibility of clonal seedlings of Eucalyptus spp. to powdery mildew disease
title_fullStr Susceptibility of clonal seedlings of Eucalyptus spp. to powdery mildew disease
title_full_unstemmed Susceptibility of clonal seedlings of Eucalyptus spp. to powdery mildew disease
title_sort Susceptibility of clonal seedlings of Eucalyptus spp. to powdery mildew disease
author Bovolini, Marciéli Pitorini
author_facet Bovolini, Marciéli Pitorini
Lazarotto, Marília
Gonzatto, Mateus Pereira
Borges Junior, Norton
Lanna Filho, Roberto
author_role author
author2 Lazarotto, Marília
Gonzatto, Mateus Pereira
Borges Junior, Norton
Lanna Filho, Roberto
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Bovolini, Marciéli Pitorini
Lazarotto, Marília
Gonzatto, Mateus Pereira
Borges Junior, Norton
Lanna Filho, Roberto
dc.subject.por.fl_str_mv Oídio
Eucalipto
Doença de planta
Plântula
topic Oídio
Eucalipto
Doença de planta
Plântula
Clonal nursery
Oidium eucalypti
Incidence
dc.subject.eng.fl_str_mv Clonal nursery
Oidium eucalypti
Incidence
description Powdery mildew is one of the main diseases in eucalyptus clonal nursery. The present work aimed to confirm the identity of the causal agent of powdery mildew in clonal seedlings of Eucalyptus spp., and to evaluate the susceptibility reaction of clones to this disease. Conidia were collected in minigardens for molecular identification of the pathogen. We assessed susceptibility by testing 4 clones: Clone 1 (Eucalyptus benthamii), Clone 2 (E. dunni), Clone 3 (E. benthamii) and Clone 4 (E. urophylla x E. globulus). Scale of classes was used for calculations of Disease Index (DI) and Final Incidence (I). Temporal analysis was performed using the Logistic and Gompertz models. The molecular identification confirmed the identity of the isolates approximate to Podosphaera pannosa (teleomorphic phase of Oidium eucalypti). The Gompertz model obtained a better adjustment to the severity and incidence data, and clones 1 and 2 showed greater susceptibility to eucalyptus powdery mildew.
publishDate 2018
dc.date.accessioned.fl_str_mv 2018-11-30T02:42:44Z
dc.date.issued.fl_str_mv 2018
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/other
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/185278
dc.identifier.issn.pt_BR.fl_str_mv 2179-8087
dc.identifier.nrb.pt_BR.fl_str_mv 001080911
identifier_str_mv 2179-8087
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url http://hdl.handle.net/10183/185278
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Floresta e Ambiente. Rio de Janeiro. Vol. 25, n. 3, (2018), [art.] e20170597
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eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRGS
instname:Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
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institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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