Susceptibility of clonal seedlings of Eucalyptus spp. to powdery mildew disease
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , |
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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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 |
format |
article |
status_str |
publishedVersion |
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 001080911 |
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 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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