Supressividade natural de solos do Nordeste brasileiro à murcha-de-fusário e rizoctoniose do caupi
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFRPE |
Texto Completo: | http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6582 |
Resumo: | The cowpea (Vigna unguiculata L.) is one of the main crops in the Northeast of Brazil especially for the small farmers. The Fusarium wilt and Rhizoctonia canker caused by Fusarium oxysporum f.sp. tracheiphilum and Rhizoctonia solani, respectively are the cowpea diseases showing more frequency and intensity in the Northeast of Brazil. This work aimed to evaluate the natural suppressiveness of 66 soils of this region to the Fusarium wilt and Rhizoctonia canker, and to analyze the physical, chemical and biological characteristics of this soils associated with disease suppressiveness or conducivity. The evaluated soils were grouped from highly suppressive to highly conducive in relation to Fusarium wilt and Rhizoctonia canker severities. The main variables involved in Fusarium wilt suppressiveness were high levels of phosphorus and potassium, basal respiration (CO2 evolution) and indexes of microbial diversity and equitability. For Rhizoctonia canker important correlations were determined with levels of phosphorus, potassium and sodium, basal respiration and enzymatic activity of fluorescein diacetate. There was no correlation between physical factors and suppressiveness to Fusarium wilt, but it was possible to correlate the levels of sand, clay and silt with suppressiveness and/or conducivity of Rhizoctonia canker. Three soils previously classified as highly supressive to Rhizoctonia canker were evaluated in relation to eight strains and three inoculum densities of R. solani. There was significant difference among soils and strains in relation to levels of disease severity. In the three soils the severity levels induced by the strain CMM-1053 were similar to those observed in former studies. Most of the strains showed different behavior in relation to soils, except for CMM-1064 and CMM-1066. There was significant difference among disease severity levels and different inoculum densities. The three soils presented good stability in relation to the different R. solani strains, but the inoculum density may be a limiting factor in the implementation of the natural soil suppressiveness or the supressivity induction in conducive soils. |
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MICHEREFF, Sami JorgeNASCIMENTO, Clístenes Williams Araújo doASSUNÇÃO, Iraildes PereiraSILVEIRA, Norma Suely Sobral daSILVEIRA, Elineide Barbosa daLARANJEIRA, DelsonANDRIÓN, Eddy Enrique Barraza2017-03-16T12:53:24Z2009-07-31ANDRIÓN, Eddy Enrique Barraza. Supressividade natural de solos do Nordeste brasileiro à murcha-de-fusário e rizoctoniose do caupi. 2009. 85 f. Tese (Programa de Pós-Graduação em Fitopatologia) - Universidade Federal Rural de Pernambuco, Recife.http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6582The cowpea (Vigna unguiculata L.) is one of the main crops in the Northeast of Brazil especially for the small farmers. The Fusarium wilt and Rhizoctonia canker caused by Fusarium oxysporum f.sp. tracheiphilum and Rhizoctonia solani, respectively are the cowpea diseases showing more frequency and intensity in the Northeast of Brazil. This work aimed to evaluate the natural suppressiveness of 66 soils of this region to the Fusarium wilt and Rhizoctonia canker, and to analyze the physical, chemical and biological characteristics of this soils associated with disease suppressiveness or conducivity. The evaluated soils were grouped from highly suppressive to highly conducive in relation to Fusarium wilt and Rhizoctonia canker severities. The main variables involved in Fusarium wilt suppressiveness were high levels of phosphorus and potassium, basal respiration (CO2 evolution) and indexes of microbial diversity and equitability. For Rhizoctonia canker important correlations were determined with levels of phosphorus, potassium and sodium, basal respiration and enzymatic activity of fluorescein diacetate. There was no correlation between physical factors and suppressiveness to Fusarium wilt, but it was possible to correlate the levels of sand, clay and silt with suppressiveness and/or conducivity of Rhizoctonia canker. Three soils previously classified as highly supressive to Rhizoctonia canker were evaluated in relation to eight strains and three inoculum densities of R. solani. There was significant difference among soils and strains in relation to levels of disease severity. In the three soils the severity levels induced by the strain CMM-1053 were similar to those observed in former studies. Most of the strains showed different behavior in relation to soils, except for CMM-1064 and CMM-1066. There was significant difference among disease severity levels and different inoculum densities. The three soils presented good stability in relation to the different R. solani strains, but the inoculum density may be a limiting factor in the implementation of the natural soil suppressiveness or the supressivity induction in conducive soils.O caupi (Vigna unguiculata L.) é uma das culturas mais importantes da região Nordeste do Brasil, principalmente na economia de pequenos produtores rurais. A murcha-de-fusário e a rizoctoniose, causadas pelos fungos Fusarium oxysporum f.sp. tracheiphilum e Rhizoctonia solani, respectivamente, são as doenças mais freqüentes e de maior intensidade em caupi no Nordeste brasileiro. Esta tese teve como objetivos avaliar a supressividade natural de 66 solos do Nordeste brasileiro à murcha-de-fusário e rizotoniose do caupi, analisar as características físicas, químicas e biológicas dos solos associadas com a supressividade ou conducividade às doenças, bem como avaliar a estabilidade da supressividade de três solos à rizoctonose do caupi, considerando diferentes isolados e densidades de inóculo de R. solani. Em relação à severidade da murcha-de-fusário e da rizoctoniose do caupi, os solos avaliados foram agrupados desde fortemente supressivos a altamente conducivos. As principais variáveis envolvidas na supressividade da murcha-de-fusário foram elevados teores de fósforo e potássio, respiração basal (CO2 evoluído) e os índices de diversidade e eqüitabilidade microbiana. Para a rizoctoniose, foram determinadas correlações importantes com os níveis de fósforo, potássio e sódio, respiração basal e atividade enzimática de diacetato de fluoresceína. Não foram correlacionados fatores físicos com a supressividade à murcha-de-fusário, porém foi possível correlacionar os teores de areia, argila e silte com asupressividade e/ou conducividade da rizoctoniose. Três solos classificados como fortemente supressivos à rizoctoniose foram avaliados em relação a oito isolados e três densidades de inoculo de R. solani. Houve diferença significativa entre os solos e os isolados quanto aos níveis de severidade da doença. Nos três solos os níveis de severidade induzidos pelo isolado CMM-1053 foram similares aos verificados nos estudos prévios. A maioria dos isolados apresentou comportamentos diferente em função dos solos, com exceção dos isolados CMM-1064 e CMM-1066. Foi verificada diferença significativa entre os níveis de severidade da doença e as diferentes densidades de inoculo. Os três solos evidenciaram estabilidade em relação aos diferentes isolados de R. solani, porém a densidade de inóculo pode ser um fator limitante na implementação da supressividade natural dos solos ou da indução da supressividade em solos conducivos.Submitted by (lucia.rodrigues@ufrpe.br) on 2017-03-16T12:53:24Z No. of bitstreams: 1 Eddy Enrique Barraza Andrion (1).pdf: 947495 bytes, checksum: aa5e0f6002d19bd71d54a71eae9dc237 (MD5)Made available in DSpace on 2017-03-16T12:53:24Z (GMT). No. of bitstreams: 1 Eddy Enrique Barraza Andrion (1).pdf: 947495 bytes, checksum: aa5e0f6002d19bd71d54a71eae9dc237 (MD5) Previous issue date: 2009-07-31application/pdfporUniversidade Federal Rural de PernambucoPrograma de Pós-Graduação em FitopatologiaUFRPEBrasilDepartamento de AgronomiaVigna unguiculataFusarium oxysporum f. sp. tracheiphilumRhizoctonia solaniDoença radicularSupressividade do soloEcologia do soloCaupiRoot diseasesSoil suppressivenessSoil ecologyCowpeaFITOSSANIDADE::FITOPATOLOGIASupressividade natural de solos do Nordeste brasileiro à murcha-de-fusário e rizoctoniose do caupiinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesis1343367238723626701600600600-6800553879972229205-6207026424523013504info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFRPEinstname:Universidade Federal Rural de Pernambuco (UFRPE)instacron:UFRPELICENSElicense.txtlicense.txttext/plain; charset=utf-82165http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/6582/1/license.txtbd3efa91386c1718a7f26a329fdcb468MD51ORIGINALEddy Enrique Barraza Andrion (1).pdfEddy Enrique Barraza Andrion (1).pdfapplication/pdf947495http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/6582/2/Eddy+Enrique+Barraza+Andrion+%281%29.pdfaa5e0f6002d19bd71d54a71eae9dc237MD52tede2/65822024-07-23 12:06:10.456oai:tede2: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Biblioteca Digital de Teses e Dissertaçõeshttp://www.tede2.ufrpe.br:8080/tede/PUBhttp://www.tede2.ufrpe.br:8080/oai/requestbdtd@ufrpe.br ||bdtd@ufrpe.bropendoar:2024-07-23T15:06:10Biblioteca Digital de Teses e Dissertações da UFRPE - Universidade Federal Rural de Pernambuco (UFRPE)false |
dc.title.por.fl_str_mv |
Supressividade natural de solos do Nordeste brasileiro à murcha-de-fusário e rizoctoniose do caupi |
title |
Supressividade natural de solos do Nordeste brasileiro à murcha-de-fusário e rizoctoniose do caupi |
spellingShingle |
Supressividade natural de solos do Nordeste brasileiro à murcha-de-fusário e rizoctoniose do caupi ANDRIÓN, Eddy Enrique Barraza Vigna unguiculata Fusarium oxysporum f. sp. tracheiphilum Rhizoctonia solani Doença radicular Supressividade do solo Ecologia do solo Caupi Root diseases Soil suppressiveness Soil ecology Cowpea FITOSSANIDADE::FITOPATOLOGIA |
title_short |
Supressividade natural de solos do Nordeste brasileiro à murcha-de-fusário e rizoctoniose do caupi |
title_full |
Supressividade natural de solos do Nordeste brasileiro à murcha-de-fusário e rizoctoniose do caupi |
title_fullStr |
Supressividade natural de solos do Nordeste brasileiro à murcha-de-fusário e rizoctoniose do caupi |
title_full_unstemmed |
Supressividade natural de solos do Nordeste brasileiro à murcha-de-fusário e rizoctoniose do caupi |
title_sort |
Supressividade natural de solos do Nordeste brasileiro à murcha-de-fusário e rizoctoniose do caupi |
author |
ANDRIÓN, Eddy Enrique Barraza |
author_facet |
ANDRIÓN, Eddy Enrique Barraza |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
MICHEREFF, Sami Jorge |
dc.contributor.advisor-co1.fl_str_mv |
NASCIMENTO, Clístenes Williams Araújo do |
dc.contributor.advisor-co2.fl_str_mv |
ASSUNÇÃO, Iraildes Pereira |
dc.contributor.referee1.fl_str_mv |
SILVEIRA, Norma Suely Sobral da |
dc.contributor.referee2.fl_str_mv |
SILVEIRA, Elineide Barbosa da |
dc.contributor.referee3.fl_str_mv |
LARANJEIRA, Delson |
dc.contributor.author.fl_str_mv |
ANDRIÓN, Eddy Enrique Barraza |
contributor_str_mv |
MICHEREFF, Sami Jorge NASCIMENTO, Clístenes Williams Araújo do ASSUNÇÃO, Iraildes Pereira SILVEIRA, Norma Suely Sobral da SILVEIRA, Elineide Barbosa da LARANJEIRA, Delson |
dc.subject.por.fl_str_mv |
Vigna unguiculata Fusarium oxysporum f. sp. tracheiphilum Rhizoctonia solani Doença radicular Supressividade do solo Ecologia do solo Caupi Root diseases Soil suppressiveness Soil ecology Cowpea |
topic |
Vigna unguiculata Fusarium oxysporum f. sp. tracheiphilum Rhizoctonia solani Doença radicular Supressividade do solo Ecologia do solo Caupi Root diseases Soil suppressiveness Soil ecology Cowpea FITOSSANIDADE::FITOPATOLOGIA |
dc.subject.cnpq.fl_str_mv |
FITOSSANIDADE::FITOPATOLOGIA |
description |
The cowpea (Vigna unguiculata L.) is one of the main crops in the Northeast of Brazil especially for the small farmers. The Fusarium wilt and Rhizoctonia canker caused by Fusarium oxysporum f.sp. tracheiphilum and Rhizoctonia solani, respectively are the cowpea diseases showing more frequency and intensity in the Northeast of Brazil. This work aimed to evaluate the natural suppressiveness of 66 soils of this region to the Fusarium wilt and Rhizoctonia canker, and to analyze the physical, chemical and biological characteristics of this soils associated with disease suppressiveness or conducivity. The evaluated soils were grouped from highly suppressive to highly conducive in relation to Fusarium wilt and Rhizoctonia canker severities. The main variables involved in Fusarium wilt suppressiveness were high levels of phosphorus and potassium, basal respiration (CO2 evolution) and indexes of microbial diversity and equitability. For Rhizoctonia canker important correlations were determined with levels of phosphorus, potassium and sodium, basal respiration and enzymatic activity of fluorescein diacetate. There was no correlation between physical factors and suppressiveness to Fusarium wilt, but it was possible to correlate the levels of sand, clay and silt with suppressiveness and/or conducivity of Rhizoctonia canker. Three soils previously classified as highly supressive to Rhizoctonia canker were evaluated in relation to eight strains and three inoculum densities of R. solani. There was significant difference among soils and strains in relation to levels of disease severity. In the three soils the severity levels induced by the strain CMM-1053 were similar to those observed in former studies. Most of the strains showed different behavior in relation to soils, except for CMM-1064 and CMM-1066. There was significant difference among disease severity levels and different inoculum densities. The three soils presented good stability in relation to the different R. solani strains, but the inoculum density may be a limiting factor in the implementation of the natural soil suppressiveness or the supressivity induction in conducive soils. |
publishDate |
2009 |
dc.date.issued.fl_str_mv |
2009-07-31 |
dc.date.accessioned.fl_str_mv |
2017-03-16T12:53:24Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
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doctoralThesis |
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publishedVersion |
dc.identifier.citation.fl_str_mv |
ANDRIÓN, Eddy Enrique Barraza. Supressividade natural de solos do Nordeste brasileiro à murcha-de-fusário e rizoctoniose do caupi. 2009. 85 f. Tese (Programa de Pós-Graduação em Fitopatologia) - Universidade Federal Rural de Pernambuco, Recife. |
dc.identifier.uri.fl_str_mv |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6582 |
identifier_str_mv |
ANDRIÓN, Eddy Enrique Barraza. Supressividade natural de solos do Nordeste brasileiro à murcha-de-fusário e rizoctoniose do caupi. 2009. 85 f. Tese (Programa de Pós-Graduação em Fitopatologia) - Universidade Federal Rural de Pernambuco, Recife. |
url |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6582 |
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por |
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Universidade Federal Rural de Pernambuco |
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Programa de Pós-Graduação em Fitopatologia |
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UFRPE |
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Departamento de Agronomia |
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Universidade Federal Rural de Pernambuco |
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