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| 4. |  | DAMARIO, E. A.; PASCALE, A. J.; BELTRAN, A. Disponibilidad de horas de frio en el Estado de Rio Grande do Sul. In: CONGRESSO BRASILEIRO DE AGROMETEOROLOGIA, 11. REUNIAO LATINO AMERICANA DE AGROMETEOROLOGIA, 2, 1999, Florianópolis,SC. Anais...Florianopolis,SC: Epagri, 1999. CD-ROOM.| Biblioteca(s): Epagri-Sede. |
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Registro Completo
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
23/03/2017 |
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Data da última atualização: |
23/03/2017 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
PINZÓN, A. M.; MONTEIRO, F. P.; PACHECO, L. P.; ALVAREZ, G. A.; ALMEIDA, C. C.; PINTO, F. A. M. F.; MEDEIROS, F. H. V.; SOUZA, J. T. |
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Título: |
Development and validation of a diagrammatic scale to assess the severity of black rot of crucifers in kale. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 49., 2016, Maceió. Resumos... Viçosa: Sociedade Brasileira de Fitopatologia, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
The black rot is the main disease of kale and its management is still a challenge in urban
agriculture. The aim of this study was to develop a diagrammatic scale to evaluate black rot
(Xanthomonas campestris p v. compestris) severity on kale (Brassica oleraceae var.
acephala) leaves. The diagrammatic scale was developed and validated with eight levels of
severity, ranging from 0.19 to 48.8%. More than 95% of the leaves collected from the field
showed severity levels ranging from 0.1 to 21% and 5% of the leaves showed severities
higher than 22%. The validation of the scale was performed by 10 inexperienced evaluators.
Without the scale, most evaluators overestimated disease severity, whereas the use of the
scale resulted in increased precision, accuracy, repeatability, and reproducibility of the
estimates. In conclusion, the proposed diagrammatic scale proved to be useful for
assessments of black rot severity in kale leaves. The scale may be of interest to researches
performing studies on epidemiology or breeding for resistance. |
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Palavras-Chave: |
Brassica oleracea var acephala; Disease assessment; Disease severity; Leaf disease; Xanthomonas campestris pv campestris. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 01947naa a2200265 a 4500
001 1126059
005 2017-03-23
008 2016 bl uuuu u00u1 u #d
100 1 $aPINZÓN, A. M.
245 $aDevelopment and validation of a diagrammatic scale to assess the severity of black rot of crucifers in kale.$h[electronic resource]
260 $c2016
520 $aThe black rot is the main disease of kale and its management is still a challenge in urban agriculture. The aim of this study was to develop a diagrammatic scale to evaluate black rot (Xanthomonas campestris p v. compestris) severity on kale (Brassica oleraceae var. acephala) leaves. The diagrammatic scale was developed and validated with eight levels of severity, ranging from 0.19 to 48.8%. More than 95% of the leaves collected from the field showed severity levels ranging from 0.1 to 21% and 5% of the leaves showed severities higher than 22%. The validation of the scale was performed by 10 inexperienced evaluators. Without the scale, most evaluators overestimated disease severity, whereas the use of the scale resulted in increased precision, accuracy, repeatability, and reproducibility of the estimates. In conclusion, the proposed diagrammatic scale proved to be useful for assessments of black rot severity in kale leaves. The scale may be of interest to researches performing studies on epidemiology or breeding for resistance.
653 $aBrassica oleracea var acephala
653 $aDisease assessment
653 $aDisease severity
653 $aLeaf disease
653 $aXanthomonas campestris pv campestris
700 1 $aMONTEIRO, F. P.
700 1 $aPACHECO, L. P.
700 1 $aALVAREZ, G. A.
700 1 $aALMEIDA, C. C.
700 1 $aPINTO, F. A. M. F.
700 1 $aMEDEIROS, F. H. V.
700 1 $aSOUZA, J. T.
773 $tIn: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 49., 2016, Maceió. Resumos... Viçosa: Sociedade Brasileira de Fitopatologia, 2016.
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