Dinâmica espaço-temporal da murcha de Ceratocystis em Mangifera indica e associação da doença a potenciais vetores
Ano de defesa: | 2014 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , , , |
Tipo de documento: | Dissertação |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Viçosa
|
Programa de Pós-Graduação: |
Mestrado em Fitopatologia
|
Departamento: |
Etiologia; Epidemiologia; Controle
|
País: |
BR
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://locus.ufv.br/handle/123456789/4429 |
Resumo: | Ceratocystis wilt, caused by Ceratocystis fimbriata, is a destructive mango disease, and its epidemiology is poorly understood. The objective of the study was to describe the spatio-temporal dynamics of Ceratocystis wilt, and its association with beetles and termites in two producing regions. Epidemics of Ceratocystis wilt were followed over fifteen months in five plots, two in Itaocara RJ (A1RJ and A2RJ) and three in Frutal MG (A1MG, A2MG, and A3MG). The logistic, Gompertz, and monomolecular models were fitted to monthly data of incidence, severity, and plant death through Bayesian analysis. The best goodness of fit was with the Gompertz model. The marginal posterior distribution of the A2RJ epidemic had higher values of incidence rate, whereas the distributions of the A1RJ, A1MG, A2MG, and A3MG epidemics did not differ. Lower values of severity and mortality rate were observed in the marginal posterior distribution of the Itaocara epidemics, and there were no differences between the distributions of the Frutal epidemics. The pattern of occurrence of the disease in each plant also differed between the regions. When the disease was first detected, the severity values in each plant in Itaocara varied from 0.1 to 60%, whereas the severity value in Frutal was always 100%. In Itaocara, it took longer for the diseased plants to die than in Frutal. With respect to spatial dynamics, in Itaocara were observed maximum values of intensity of disease in foci and intermediate values in different locations of the plots, while in Frutal the disease was grouped into foci of increased intensity and progressed only in those places. In Itaocara, the disease was randomly spread from initial foci to more distant, while in Frutal spread of aggregate form for healthy plants neighboring. There was no spatial association of the disease with termites in the all plots, but there was spatial association of the disease and beetles the early stages of the disease in A1RJ and A2RJ, and the later stages in the A1MG e A2MG plots. Thus, it was concluded that the spatio-temporal dynamics of Ceratocystis wilt in Itaocara and Frutal differed most likely because of differences regarding the initial inoculum and pathogen dispersal. |
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Moraes, Wanderson Buckerhttp://lattes.cnpq.br/8715721434402222Maffia, Luiz Antôniohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783229P9Santos, Gérson Rodrigues doshttp://lattes.cnpq.br/0674757734832405Silva, Fabyano Fonseca ehttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4766260Z2Souza, André Gomes Coelho dehttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4778792J2Alfenas, Acelino Coutohttp://lattes.cnpq.br/25143206544625902015-03-26T13:37:53Z2014-12-152015-03-26T13:37:53Z2014-02-27MORAES, Wanderson Bucker. Spatio-temporal dynamics of Ceratocystis wilt in Mangifera indica and disease association with potential vectors. 2014. 91 f. Dissertação (Mestrado em Etiologia; Epidemiologia; Controle) - Universidade Federal de Viçosa, Viçosa, 2014.http://locus.ufv.br/handle/123456789/4429Ceratocystis wilt, caused by Ceratocystis fimbriata, is a destructive mango disease, and its epidemiology is poorly understood. The objective of the study was to describe the spatio-temporal dynamics of Ceratocystis wilt, and its association with beetles and termites in two producing regions. Epidemics of Ceratocystis wilt were followed over fifteen months in five plots, two in Itaocara RJ (A1RJ and A2RJ) and three in Frutal MG (A1MG, A2MG, and A3MG). The logistic, Gompertz, and monomolecular models were fitted to monthly data of incidence, severity, and plant death through Bayesian analysis. The best goodness of fit was with the Gompertz model. The marginal posterior distribution of the A2RJ epidemic had higher values of incidence rate, whereas the distributions of the A1RJ, A1MG, A2MG, and A3MG epidemics did not differ. Lower values of severity and mortality rate were observed in the marginal posterior distribution of the Itaocara epidemics, and there were no differences between the distributions of the Frutal epidemics. The pattern of occurrence of the disease in each plant also differed between the regions. When the disease was first detected, the severity values in each plant in Itaocara varied from 0.1 to 60%, whereas the severity value in Frutal was always 100%. In Itaocara, it took longer for the diseased plants to die than in Frutal. With respect to spatial dynamics, in Itaocara were observed maximum values of intensity of disease in foci and intermediate values in different locations of the plots, while in Frutal the disease was grouped into foci of increased intensity and progressed only in those places. In Itaocara, the disease was randomly spread from initial foci to more distant, while in Frutal spread of aggregate form for healthy plants neighboring. There was no spatial association of the disease with termites in the all plots, but there was spatial association of the disease and beetles the early stages of the disease in A1RJ and A2RJ, and the later stages in the A1MG e A2MG plots. Thus, it was concluded that the spatio-temporal dynamics of Ceratocystis wilt in Itaocara and Frutal differed most likely because of differences regarding the initial inoculum and pathogen dispersal.Murcha de Ceratocystis, causada por Ceratocystis fimbriata, é uma doença destrutiva da mangueira, e sua epidemiologia é pouca compreendida. O objetivo do estudo foi descrever a dinâmica espaço-temporal da murcha de Ceratocystis, e verificar sua associação com coleobrocas e cupins em duas regiões produtoras. Epidemias da murcha de Ceratocystis foram avaliadas durante 15 meses, em cinco talhões, dois em Itaocara- RJ (A1RJ e A2RJ) e três em Frutal-MG (A1MG, A2MG, e A3MG). Os modelos logístico, Gompertz, e monomolecular foram ajustados aos dados mensais de incidência, severidade, e de plantas mortas por meio da análise Bayesiana. Obteve-se melhor ajuste das curvas de todas as epidemias com o modelo de Gompertz. A distribuição marginal a posteriori da epidemia A2RJ teve maiores valores de taxa de incidência, enquanto que as distribuições das epidemias A1RJ, A1MG, A2MG, e A3MG não diferiram. Os menores valores de taxa de severidade e mortalidade foram observados nas distribuições marginais a posteriori das epidemias de Itaocara, e não houve diferenças entre as distribuições das epidemias de Frutal. O padrão de ocorrência da doença em cada planta também diferiu entre as regiões. Quando a doença foi detectada pela primeira vez, os valores de severidade em cada planta em Itaocara variaram de 0,1 a 60%, enquanto em Frutal o valor de severidade foi sempre 100%. Em Itaocara, as plantas doentes demoraram mais para morrer do que em Frutal. Com relação à dinâmica espacial, em Itaocara observaram-se valores máximos de intensidade da doença em focos e valores intermediários em diferentes locais dos talhões, enquanto em Frutal a doença ficou agrupada em focos de maior intensidade e progrediu apenas nesses locais. Em Itaocara, a doença disseminou-se de forma aleatória a partir dos focos iniciais para locais mais distantes, enquanto em Frutal disseminou-se de forma agregada para as plantas sadias próximas. Não houve associação espacial da doença com cupins em todos os talhões, mas houve associação espacial da doença e coleobrocas aos estádios iniciais da doença em A1RJ e A2RJ, e aos estádios posteriores nos talhões A1MG e A2MG. Assim, concluiu-se que a dinâmica espaço-temporal da murcha de Ceratocystis em Itaocara e Frutal diferiram muito provavelmente por causa das diferenças em relação ao inóculo inicial e mecanismos de dispersão do patógeno.Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorapplication/pdfporUniversidade Federal de ViçosaMestrado em FitopatologiaUFVBREtiologia; Epidemiologia; ControleCeratocystis fimbriataMurcha-de-Ceratocystis - EpidemiologiaMangueira - Doenças e pragasCeratocystis fimbriataWilt of-Ceratocystis - EpidemiologyHose - Diseases and pestsCNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOSSANIDADE::FITOPATOLOGIADinâmica espaço-temporal da murcha de Ceratocystis em Mangifera indica e associação da doença a potenciais vetoresSpatio-temporal dynamics of Ceratocystis wilt in Mangifera indica and disease association with potential vectorsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALtexto completo.pdfapplication/pdf5262861https://locus.ufv.br//bitstream/123456789/4429/1/texto%20completo.pdfd0d29e5faf879e4abe516967979fff9eMD51TEXTtexto completo.pdf.txttexto completo.pdf.txtExtracted texttext/plain164373https://locus.ufv.br//bitstream/123456789/4429/2/texto%20completo.pdf.txtc1bd36e735e543c894d14be45cfb8004MD52THUMBNAILtexto completo.pdf.jpgtexto completo.pdf.jpgIM Thumbnailimage/jpeg3599https://locus.ufv.br//bitstream/123456789/4429/3/texto%20completo.pdf.jpg17af9a7026dbe399afc17d679ba38974MD53123456789/44292016-04-10 23:09:31.495oai:locus.ufv.br:123456789/4429Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452016-04-11T02:09:31LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false |
dc.title.por.fl_str_mv |
Dinâmica espaço-temporal da murcha de Ceratocystis em Mangifera indica e associação da doença a potenciais vetores |
dc.title.alternative.eng.fl_str_mv |
Spatio-temporal dynamics of Ceratocystis wilt in Mangifera indica and disease association with potential vectors |
title |
Dinâmica espaço-temporal da murcha de Ceratocystis em Mangifera indica e associação da doença a potenciais vetores |
spellingShingle |
Dinâmica espaço-temporal da murcha de Ceratocystis em Mangifera indica e associação da doença a potenciais vetores Moraes, Wanderson Bucker Ceratocystis fimbriata Murcha-de-Ceratocystis - Epidemiologia Mangueira - Doenças e pragas Ceratocystis fimbriata Wilt of-Ceratocystis - Epidemiology Hose - Diseases and pests CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOSSANIDADE::FITOPATOLOGIA |
title_short |
Dinâmica espaço-temporal da murcha de Ceratocystis em Mangifera indica e associação da doença a potenciais vetores |
title_full |
Dinâmica espaço-temporal da murcha de Ceratocystis em Mangifera indica e associação da doença a potenciais vetores |
title_fullStr |
Dinâmica espaço-temporal da murcha de Ceratocystis em Mangifera indica e associação da doença a potenciais vetores |
title_full_unstemmed |
Dinâmica espaço-temporal da murcha de Ceratocystis em Mangifera indica e associação da doença a potenciais vetores |
title_sort |
Dinâmica espaço-temporal da murcha de Ceratocystis em Mangifera indica e associação da doença a potenciais vetores |
author |
Moraes, Wanderson Bucker |
author_facet |
Moraes, Wanderson Bucker |
author_role |
author |
dc.contributor.authorLattes.por.fl_str_mv |
http://lattes.cnpq.br/8715721434402222 |
dc.contributor.author.fl_str_mv |
Moraes, Wanderson Bucker |
dc.contributor.advisor1.fl_str_mv |
Maffia, Luiz Antônio |
dc.contributor.advisor1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783229P9 |
dc.contributor.referee1.fl_str_mv |
Santos, Gérson Rodrigues dos |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/0674757734832405 |
dc.contributor.referee2.fl_str_mv |
Silva, Fabyano Fonseca e |
dc.contributor.referee2Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4766260Z2 |
dc.contributor.referee3.fl_str_mv |
Souza, André Gomes Coelho de |
dc.contributor.referee3Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4778792J2 |
dc.contributor.referee4.fl_str_mv |
Alfenas, Acelino Couto |
dc.contributor.referee4Lattes.fl_str_mv |
http://lattes.cnpq.br/2514320654462590 |
contributor_str_mv |
Maffia, Luiz Antônio Santos, Gérson Rodrigues dos Silva, Fabyano Fonseca e Souza, André Gomes Coelho de Alfenas, Acelino Couto |
dc.subject.por.fl_str_mv |
Ceratocystis fimbriata Murcha-de-Ceratocystis - Epidemiologia Mangueira - Doenças e pragas |
topic |
Ceratocystis fimbriata Murcha-de-Ceratocystis - Epidemiologia Mangueira - Doenças e pragas Ceratocystis fimbriata Wilt of-Ceratocystis - Epidemiology Hose - Diseases and pests CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOSSANIDADE::FITOPATOLOGIA |
dc.subject.eng.fl_str_mv |
Ceratocystis fimbriata Wilt of-Ceratocystis - Epidemiology Hose - Diseases and pests |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOSSANIDADE::FITOPATOLOGIA |
description |
Ceratocystis wilt, caused by Ceratocystis fimbriata, is a destructive mango disease, and its epidemiology is poorly understood. The objective of the study was to describe the spatio-temporal dynamics of Ceratocystis wilt, and its association with beetles and termites in two producing regions. Epidemics of Ceratocystis wilt were followed over fifteen months in five plots, two in Itaocara RJ (A1RJ and A2RJ) and three in Frutal MG (A1MG, A2MG, and A3MG). The logistic, Gompertz, and monomolecular models were fitted to monthly data of incidence, severity, and plant death through Bayesian analysis. The best goodness of fit was with the Gompertz model. The marginal posterior distribution of the A2RJ epidemic had higher values of incidence rate, whereas the distributions of the A1RJ, A1MG, A2MG, and A3MG epidemics did not differ. Lower values of severity and mortality rate were observed in the marginal posterior distribution of the Itaocara epidemics, and there were no differences between the distributions of the Frutal epidemics. The pattern of occurrence of the disease in each plant also differed between the regions. When the disease was first detected, the severity values in each plant in Itaocara varied from 0.1 to 60%, whereas the severity value in Frutal was always 100%. In Itaocara, it took longer for the diseased plants to die than in Frutal. With respect to spatial dynamics, in Itaocara were observed maximum values of intensity of disease in foci and intermediate values in different locations of the plots, while in Frutal the disease was grouped into foci of increased intensity and progressed only in those places. In Itaocara, the disease was randomly spread from initial foci to more distant, while in Frutal spread of aggregate form for healthy plants neighboring. There was no spatial association of the disease with termites in the all plots, but there was spatial association of the disease and beetles the early stages of the disease in A1RJ and A2RJ, and the later stages in the A1MG e A2MG plots. Thus, it was concluded that the spatio-temporal dynamics of Ceratocystis wilt in Itaocara and Frutal differed most likely because of differences regarding the initial inoculum and pathogen dispersal. |
publishDate |
2014 |
dc.date.available.fl_str_mv |
2014-12-15 2015-03-26T13:37:53Z |
dc.date.issued.fl_str_mv |
2014-02-27 |
dc.date.accessioned.fl_str_mv |
2015-03-26T13:37:53Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
MORAES, Wanderson Bucker. Spatio-temporal dynamics of Ceratocystis wilt in Mangifera indica and disease association with potential vectors. 2014. 91 f. Dissertação (Mestrado em Etiologia; Epidemiologia; Controle) - Universidade Federal de Viçosa, Viçosa, 2014. |
dc.identifier.uri.fl_str_mv |
http://locus.ufv.br/handle/123456789/4429 |
identifier_str_mv |
MORAES, Wanderson Bucker. Spatio-temporal dynamics of Ceratocystis wilt in Mangifera indica and disease association with potential vectors. 2014. 91 f. Dissertação (Mestrado em Etiologia; Epidemiologia; Controle) - Universidade Federal de Viçosa, Viçosa, 2014. |
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http://locus.ufv.br/handle/123456789/4429 |
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Universidade Federal de Viçosa |
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Mestrado em Fitopatologia |
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UFV |
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BR |
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Etiologia; Epidemiologia; Controle |
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Universidade Federal de Viçosa |
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