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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
05/08/2010 |
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Data da última atualização: |
04/06/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CAPUCHO, A. S.; ZAMBOLIM, L.; DUARTE, H. S. S.; PARREIRA, D. F.; FERREIRA, P. A.; LANZA, F. E.; COSTA, R. V. da; CASELA, C. R.; COTA, L. V. |
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Afiliação: |
ALEXANDRE SANDRI CAPUCHO, UFV; LAERCIO ZAMBOLIM, UFV; HENRIQUE DA SILVA SILVEIRA DUARTE, UFV; DOUGLAS FERREIRA PARREIRA, UFV; UFV; FABRICIO EUSTAQUIO LANZA, UFV; RODRIGO VERAS DA COSTA, CNPMS; CARLOS ROBERTO CASELA, Pesquisador Aposentado CNPMS; LUCIANO VIANA COTA, CNPMS. |
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Título: |
Influence of leaf position that correspond to whole plant severity and diagrammatic scale for white spot of corn. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Crop Protection, Surrey, v. 29, n. 9, p. 1015-1020, 2010. |
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DOI: |
10.1016/j.cropro.2010.04.012 |
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Idioma: |
Inglês |
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Conteúdo: |
The main objective of this research is to determine the influence of leaf position on corn plants with white spot caused by Pantoea ananatis, which better represents the infection on the whole plant. A diagrammatic scale to quantify the severity of the disease was elaborated and validated. For scale elaboration, the minimal and maximal limits of the disease severity observed in the field were considered, and intermediate levels followed logarithmic increments according to the Weber?Fechner stimulation law. The scale has nine classes: 0.1, 1, 2, 4, 8, 16, 24, 32 and 64%. For scale evaluation, a severity evaluation for white spot was performed by 10 raters with no experience in disease evaluation. Initially, severity estimation was performed without a scale for 41 leaves with different levels of severity. Afterward, the same raters used the proposed diagrammatic scale. Through linear regression to compare the actual and estimate severity values, the raters? accuracy and precision were analyzed. Satisfactory accuracy and precision were achieved when estimation was performed with a diagrammatic scale. To determine the best leaf disease severity evaluation, correlation and regression analyses were performed with 25 plants of five genotypes, for a total of 284 leaves analyzed. Results analysis leads us to conclude that the severity of white spot on corn plants significantly correlates with the disease mean severity of leaves 0 and -1, i.e., a leaf of the corn ear and the one immediately below it. This scale provided good levels of accuracy and precision (a mean R2 of 94%), with errors concentrating around 10%. Raters presented increased reproducibility (R2 > 90% in 82% of cases) of severity estimates. The proposed diagrammatic scale is considered adequate to estimate the severity of white spot in corn for germplasm evaluations, for epidemiological studies and for evaluation of control strategies for this disease. MenosThe main objective of this research is to determine the influence of leaf position on corn plants with white spot caused by Pantoea ananatis, which better represents the infection on the whole plant. A diagrammatic scale to quantify the severity of the disease was elaborated and validated. For scale elaboration, the minimal and maximal limits of the disease severity observed in the field were considered, and intermediate levels followed logarithmic increments according to the Weber?Fechner stimulation law. The scale has nine classes: 0.1, 1, 2, 4, 8, 16, 24, 32 and 64%. For scale evaluation, a severity evaluation for white spot was performed by 10 raters with no experience in disease evaluation. Initially, severity estimation was performed without a scale for 41 leaves with different levels of severity. Afterward, the same raters used the proposed diagrammatic scale. Through linear regression to compare the actual and estimate severity values, the raters? accuracy and precision were analyzed. Satisfactory accuracy and precision were achieved when estimation was performed with a diagrammatic scale. To determine the best leaf disease severity evaluation, correlation and regression analyses were performed with 25 plants of five genotypes, for a total of 284 leaves analyzed. Results analysis leads us to conclude that the severity of white spot on corn plants significantly correlates with the disease mean severity of leaves 0 and -1, i.e., a leaf of the corn ear and the one immed... Mostrar Tudo |
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Palavras-Chave: |
Assessment; Phytopatometry. |
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Thesagro: |
Zea Mays. |
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Thesaurus Nal: |
Pantoea ananatis. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02771naa a2200277 a 4500
001 1859316
005 2018-06-04
008 2010 bl uuuu u00u1 u #d
024 7 $a10.1016/j.cropro.2010.04.012$2DOI
100 1 $aCAPUCHO, A. S.
245 $aInfluence of leaf position that correspond to whole plant severity and diagrammatic scale for white spot of corn.$h[electronic resource]
260 $c2010
520 $aThe main objective of this research is to determine the influence of leaf position on corn plants with white spot caused by Pantoea ananatis, which better represents the infection on the whole plant. A diagrammatic scale to quantify the severity of the disease was elaborated and validated. For scale elaboration, the minimal and maximal limits of the disease severity observed in the field were considered, and intermediate levels followed logarithmic increments according to the Weber?Fechner stimulation law. The scale has nine classes: 0.1, 1, 2, 4, 8, 16, 24, 32 and 64%. For scale evaluation, a severity evaluation for white spot was performed by 10 raters with no experience in disease evaluation. Initially, severity estimation was performed without a scale for 41 leaves with different levels of severity. Afterward, the same raters used the proposed diagrammatic scale. Through linear regression to compare the actual and estimate severity values, the raters? accuracy and precision were analyzed. Satisfactory accuracy and precision were achieved when estimation was performed with a diagrammatic scale. To determine the best leaf disease severity evaluation, correlation and regression analyses were performed with 25 plants of five genotypes, for a total of 284 leaves analyzed. Results analysis leads us to conclude that the severity of white spot on corn plants significantly correlates with the disease mean severity of leaves 0 and -1, i.e., a leaf of the corn ear and the one immediately below it. This scale provided good levels of accuracy and precision (a mean R2 of 94%), with errors concentrating around 10%. Raters presented increased reproducibility (R2 > 90% in 82% of cases) of severity estimates. The proposed diagrammatic scale is considered adequate to estimate the severity of white spot in corn for germplasm evaluations, for epidemiological studies and for evaluation of control strategies for this disease.
650 $aPantoea ananatis
650 $aZea Mays
653 $aAssessment
653 $aPhytopatometry
700 1 $aZAMBOLIM, L.
700 1 $aDUARTE, H. S. S.
700 1 $aPARREIRA, D. F.
700 1 $aFERREIRA, P. A.
700 1 $aLANZA, F. E.
700 1 $aCOSTA, R. V. da
700 1 $aCASELA, C. R.
700 1 $aCOTA, L. V.
773 $tCrop Protection, Surrey$gv. 29, n. 9, p. 1015-1020, 2010.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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| Registros recuperados : 356 | |
| 221. |  | COSTA, R. V. da; ZAMBOLIM, L.; COTA, L. V.; SILVA, D. D. da; RODRIGUES, J. A. S.; TARDIN, F. D.; CASELA, C. R. Genetic control of sorghum resistance to leaf anthracnose. Plant Pathology, London, v. 60, p. 1162-1168, 2011.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Milho e Sorgo. |
|    |
| 222. | | MARIZ, B. L.; COTA, L. V.; MENDONÇA, L. B. P.; SILVA, D. D. da; COSTA, R. V. da; AGUIAR, F. M. Fumonisinas totais em grãos ardidos de milho amostrados em Goiás, Mato Grosso e Mato Grosso do Sul na safrinha 2016. In: CONGRESSO NACIONAL DE MILHO E SORGO, 32., 2018, Lavras. Soluções integradas para os sistemas de produção de milho e sorgo no Brasil: resumos. Sete Lagoas: Associação Brasileira de Milho e Sorgo, 2018. p. 119.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
|  |
| 223. | | DAVI, G. S.; SILVA, A. R. da; GUIMARAES, L. J. M.; COSTA, R. V. da; SILVA, D. D. da; GUIMARAES, P. E. de O. Reação de genótipos de milho à ferrugem branca (Physopella zeae) em época de safrinha. In: CONGRESSO NACIONAL DE MILHO E SORGO, 30.; SIMPÓSIO SOBRE LEPDÓPTEROS COMUNS A MILHO, SOJA E ALGODÃO, 1., 2014, Salvador. Eficiência nas cadeias produtivas e o abastecimento global: resumos expandidos. Sete Lagoas: Associação Brasileira de Milho e Sorgo, 2014. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 224. | | LANZA F. E.; CASELA, C. R.; CRISTELI, E. B.; SILVA, D. D.; COSTA, R. V. da; PEREIRA, I. S.; COTA, L. V. Reação de genótipos de milho a mancha branca causada por Pantoea ananatis. Tropical Plant Pathology, Brasília, v. 34, p. S253, ago. 2009. Trabalho apresentado no 42º Congresso Brasileiro de Fitopatologia, 2009. Rio de Janeiro, RJ.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 226. | | SILVA, D. D. da; COTA, L. V.; COSTA, R. V. da; RODRIGUES, J. A. S.; SILVA, A. R. da; MARCONDES, M. M.; LANZA, F. E.; CASELA, C. R. Recomendação de cultivares de sorgo forrageiro para resistência à antracnose foliar. Sete Lagoas: Embrapa Milho e Sorgo, 2012. 6 p. (Embrapa Milho e Sorgo. Circular técnica, 176).| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 230. | | COTA, L. V.; SOUZA, A. G. C.; COSTA, R. V. da; SILVA, D. D. da; LANZA, F. E.; AGUIAR, F. M.; FIGUEIREDO, J. E. F. Quantification of yield losses caused by leaf anthracnose on sorghum in Brazil. Journal of Phytopathology, Berlin, v. 65, n. 7/8, p. 479-485, 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 232. | | COSTA, R. V. da; COTA, L. V.; SILVA, D. D. da; PARREIRA, D. F.; CASELA, C. R.; LANDAU, E. C.; FIGUEIREDO, J. E. F. Races of Colletotrichum graminicola pathogenic to maize in Brazil. Crop Protection, Guildford, v. 56, p. 44-49, 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 235. | | COSTA, G. M. C.; COSTA, R. V. da; COTA, L. V.; SILVA, D. D. da; RAMOS, T. C. D. de A.; LANZA, F. E. Resistência genética e características de espigas na incidência de grãos ardidos em milho. In: CONGRESSO NACIONAL DE MILHO E SORGO, 30.; SIMPÓSIO SOBRE LEPDÓPTEROS COMUNS A MILHO, SOJA E ALGODÃO, 1., 2014, Salvador. Eficiência nas cadeias produtivas e o abastecimento global: resumos expandidos. Sete Lagoas: Associação Brasileira de Milho e Sorgo, 2014. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 237. | | DUARTE, E. dos S.; SOARES, M.; TEIXEIRA, G. D.; SILVA, P.; CASELA, C. R.; FERREIRA, A.; COSTA, R. V. da; MARRIEL, I. E. Seleção de actinomicetos antagonistas para biocontrole de Colletotrichum sublienolum, agente causal da antracnose do sorgo. In: SEMANA ACADÊMICA EMBRAPA MILHO E SORGO, 1., 2009, Sete Lagoas. [Resumos]. Sete Lagoas: Embrapa Milho e Sorgo, 2009. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 239. | | ALMEIDA, R. E. M. de; CUSTODIO, D. P.; OLIVEIRA, S. M. de; LIMA, L. S.; COSTA, R. V. da; CAMPOS, L. J. M. Recommendation of soil fertilization with copper and zinc for soybean crops grown in Petric Plinthosol. Ciência Rural, v. 53, n. 4, e20210722, 2023.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 4 |
| Biblioteca(s): Embrapa Milho e Sorgo; Embrapa Pesca e Aquicultura; Embrapa Soja. |
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| Registros recuperados : 356 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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