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Registro Completo |
Biblioteca(s): |
Embrapa Agroindústria Tropical; Embrapa Meio Ambiente. |
Data corrente: |
28/12/2018 |
Data da última atualização: |
23/05/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
PINTO, O. R. O.; CARDOSO, J. E.; MAIA, A. de H. N.; PINTO, C. M.; LIMA, J. S.; VIANA, F. M. P.; MARTINS, M. V. V. |
Afiliação: |
Olienaide R.O. Pinto, Universidade Federal do Ceará; JOSE EMILSON CARDOSO, CNPAT; ALINE DE HOLANDA NUNES MAIA, CNPMA; Ciro M. Pinto, Universidade da Integração Internacional da Lusofonia Afro-Brasileira; Joilson S. Lima, Universidade Federal do Ceará; FRANCISCO MARTO PINTO VIANA, CNPAT; MARLON VAGNER VALENTIM MARTINS, CNPAT. |
Título: |
Reaction of commercial clones of cashew to powdery mildew in northeastern Brazil. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Crop Protection, v. 112, p. 282-287, 2018. |
Idioma: |
Inglês |
Conteúdo: |
Cashew powdery mildew, caused by Erysiphe quercicola, is one of the main disease problems of cashew trees in Brazil. Thus, research to study the reaction of commercial cashew clones under different epidemiological stages of the disease is very important for identifying resistant clones. The objective of this research was to evaluate the reaction of commercial clones of cashew to powdery mildew by monitoring the disease during three disease cycles. The study was carried out at Embrapa Agroindústria Tropical, Pacajus Experimental Field, Ceará, Brazil, during 2012, 2013 and 2014 using eleven commercial clones of cashew (CCP 09, CCP 76, CCP 100, CCP 06, EMBRAPA 51, EMBRAPA 50, BRS 265, BRS 189, BRS 274, BRS 275 and BRS 226). Powdery mildew severity on inflorescences was estimated using a descriptive scale of severity consisting of scores ranging from 0 to 4. The transformed data were used to estimate the area under the disease progression curve (AUDPC) and the rate of infection. Based on similarities in disease severity estimates with time, clones were clustered using multivariate clustering analysis. Epidemics of cashew powdery mildew differed between the three cycles in terms of duration and severity. The clones were classified into four clusters of similar clones, defined by the graphical analysis on the basis of the powdery mildew severity. Clones BRS 274, BRS 275, CCP 1001 and BRS 226 attained lower AUDPC and clones BRS 189 and CCP 06 showed higher AUDPC. The results show evidence of partial resistance to powdery mildew among commercially grown cashew clones. Clones BRS 274, BRS 275, BRS 226 and CCP 1001 were the most resistant, while CCP 06 and BRS 189 clones were the most susceptible to powdery mildew. The AUDPC seems to be suitable for discriminating between genotypes, whereas the rate of disease progression may be used for establishing a threshold in the evaluation of other control methods, as it does not clearly differentiate between disease reactions. MenosCashew powdery mildew, caused by Erysiphe quercicola, is one of the main disease problems of cashew trees in Brazil. Thus, research to study the reaction of commercial cashew clones under different epidemiological stages of the disease is very important for identifying resistant clones. The objective of this research was to evaluate the reaction of commercial clones of cashew to powdery mildew by monitoring the disease during three disease cycles. The study was carried out at Embrapa Agroindústria Tropical, Pacajus Experimental Field, Ceará, Brazil, during 2012, 2013 and 2014 using eleven commercial clones of cashew (CCP 09, CCP 76, CCP 100, CCP 06, EMBRAPA 51, EMBRAPA 50, BRS 265, BRS 189, BRS 274, BRS 275 and BRS 226). Powdery mildew severity on inflorescences was estimated using a descriptive scale of severity consisting of scores ranging from 0 to 4. The transformed data were used to estimate the area under the disease progression curve (AUDPC) and the rate of infection. Based on similarities in disease severity estimates with time, clones were clustered using multivariate clustering analysis. Epidemics of cashew powdery mildew differed between the three cycles in terms of duration and severity. The clones were classified into four clusters of similar clones, defined by the graphical analysis on the basis of the powdery mildew severity. Clones BRS 274, BRS 275, CCP 1001 and BRS 226 attained lower AUDPC and clones BRS 189 and CCP 06 showed higher AUDPC. The results show e... Mostrar Tudo |
Palavras-Chave: |
Erysiphe quercicola; Oidium anacardii; Pseudoidium anacardii; Reação da doença. |
Thesagro: |
Caju; Míldio; Resistência. |
Thesaurus Nal: |
Cashew fruit; Cluster analysis; Disease resistance; Powdery mildew. |
Categoria do assunto: |
-- H Saúde e Patologia |
Marc: |
LEADER 02899naa a2200325 a 4500 001 2102659 005 2019-05-23 008 2018 bl uuuu u00u1 u #d 100 1 $aPINTO, O. R. O. 245 $aReaction of commercial clones of cashew to powdery mildew in northeastern Brazil.$h[electronic resource] 260 $c2018 520 $aCashew powdery mildew, caused by Erysiphe quercicola, is one of the main disease problems of cashew trees in Brazil. Thus, research to study the reaction of commercial cashew clones under different epidemiological stages of the disease is very important for identifying resistant clones. The objective of this research was to evaluate the reaction of commercial clones of cashew to powdery mildew by monitoring the disease during three disease cycles. The study was carried out at Embrapa Agroindústria Tropical, Pacajus Experimental Field, Ceará, Brazil, during 2012, 2013 and 2014 using eleven commercial clones of cashew (CCP 09, CCP 76, CCP 100, CCP 06, EMBRAPA 51, EMBRAPA 50, BRS 265, BRS 189, BRS 274, BRS 275 and BRS 226). Powdery mildew severity on inflorescences was estimated using a descriptive scale of severity consisting of scores ranging from 0 to 4. The transformed data were used to estimate the area under the disease progression curve (AUDPC) and the rate of infection. Based on similarities in disease severity estimates with time, clones were clustered using multivariate clustering analysis. Epidemics of cashew powdery mildew differed between the three cycles in terms of duration and severity. The clones were classified into four clusters of similar clones, defined by the graphical analysis on the basis of the powdery mildew severity. Clones BRS 274, BRS 275, CCP 1001 and BRS 226 attained lower AUDPC and clones BRS 189 and CCP 06 showed higher AUDPC. The results show evidence of partial resistance to powdery mildew among commercially grown cashew clones. Clones BRS 274, BRS 275, BRS 226 and CCP 1001 were the most resistant, while CCP 06 and BRS 189 clones were the most susceptible to powdery mildew. The AUDPC seems to be suitable for discriminating between genotypes, whereas the rate of disease progression may be used for establishing a threshold in the evaluation of other control methods, as it does not clearly differentiate between disease reactions. 650 $aCashew fruit 650 $aCluster analysis 650 $aDisease resistance 650 $aPowdery mildew 650 $aCaju 650 $aMíldio 650 $aResistência 653 $aErysiphe quercicola 653 $aOidium anacardii 653 $aPseudoidium anacardii 653 $aReação da doença 700 1 $aCARDOSO, J. E. 700 1 $aMAIA, A. de H. N. 700 1 $aPINTO, C. M. 700 1 $aLIMA, J. S. 700 1 $aVIANA, F. M. P. 700 1 $aMARTINS, M. V. V. 773 $tCrop Protection$gv. 112, p. 282-287, 2018.
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Embrapa Agroindústria Tropical (CNPAT) |
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Registro Completo
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
12/03/2007 |
Data da última atualização: |
09/09/2022 |
Tipo da produção científica: |
Documentos |
Autoria: |
SOUZA, G. B. de; NOGUEIRA, A. R. de A.; GUIMARAES, E. da S. |
Afiliação: |
GILBERTO BATISTA DE SOUZA, CPPSE; ANA RITA DE ARAUJO NOGUEIRA, CPPSE; EDILSON DA SILVA GUIMARAES, CPPSE. |
Título: |
Ensaio de proficiência de laboratórios de nutrição animal: relatório anual - Ano 8 - 2005. |
Ano de publicação: |
2006 |
Fonte/Imprenta: |
São Carlos, SP: Embrapa Pecuária Sudeste, 2006. |
Páginas: |
59 p. |
Série: |
(Embrapa Pecuária Sudeste. Documento, 64). |
ISSN: |
1980-6841 |
Idioma: |
Português |
Conteúdo: |
Dentre inúmeras medições químicas realizadas com diferente propósito, destaca-se a garantia da qualidade de alimentos (Analytical Methods Committee, 1995; Maier et al., 1997). Entretanto, a medida não pode ser interpretada a não ser que o valor da incerteza associada seja conhecido, e essa incerteza deve ser continuamente reavaliada, por apresentar variações dentro de laboratórios e entre laboratórios (ABNT, 1999; Chui et al., 2004). O ensaio de proficiência de laboratórios analíticos emprega procedimentos estatísticos baseados nas normas da Associação Brasileira de Normas Técnicas ? ABNT/ISO/IEC Guia 43 (ABNT, 1999) ? para verificar o desempenho dos laboratórios na realização de análises, por meio de comparações interlaboratoriais. |
Palavras-Chave: |
Proficiência. |
Thesagro: |
Analise quimica; Laboratório; Nutrição Animal. |
Categoria do assunto: |
W Química e Física |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/33441/1/Documentos64.pdf
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Marc: |
LEADER 01444nam a2200217 a 4500 001 1047853 005 2022-09-09 008 2006 bl uuuu 00u1 u #d 022 $a1980-6841 100 1 $aSOUZA, G. B. de 245 $aEnsaio de proficiência de laboratórios de nutrição animal$brelatório anual - Ano 8 - 2005.$h[electronic resource] 260 $aSão Carlos, SP: Embrapa Pecuária Sudeste$c2006 300 $a59 p. 490 $a(Embrapa Pecuária Sudeste. Documento, 64). 520 $aDentre inúmeras medições químicas realizadas com diferente propósito, destaca-se a garantia da qualidade de alimentos (Analytical Methods Committee, 1995; Maier et al., 1997). Entretanto, a medida não pode ser interpretada a não ser que o valor da incerteza associada seja conhecido, e essa incerteza deve ser continuamente reavaliada, por apresentar variações dentro de laboratórios e entre laboratórios (ABNT, 1999; Chui et al., 2004). O ensaio de proficiência de laboratórios analíticos emprega procedimentos estatísticos baseados nas normas da Associação Brasileira de Normas Técnicas ? ABNT/ISO/IEC Guia 43 (ABNT, 1999) ? para verificar o desempenho dos laboratórios na realização de análises, por meio de comparações interlaboratoriais. 650 $aAnalise quimica 650 $aLaboratório 650 $aNutrição Animal 653 $aProficiência 700 1 $aNOGUEIRA, A. R. de A. 700 1 $aGUIMARAES, E. da S.
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Embrapa Pecuária Sudeste (CPPSE) |
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