Data/hora: 01/06/2024 13:28:13

Biblioteca(s): | Epagri-Sede.
Data corrente: | 07/10/2021
Data da última atualização: | 07/10/2021
Autoria: | MONTEIRO, F. P.; OGOSHI, C.; CARDOSO, D. A.; PERAZOLLI, V.; PINTO, F. A. M. F.; MALLMANN, G.
Título: | Development and validation of diagrammatic scales to assess septoriose in tomato.
Ano de publicação: | 2021
Fonte/Imprenta: | Plant Pathology and Quarentine, Guiyang, China, v. 11, n. 1, p. 115-124, 2021.
Idioma: | Inglês

Conteúdo:

Septoriose or septoria leaf spot (Septoria lycopersici Speg.) is an important disease in 
tomatoes (Solanum lycopersicum L.) because of the damage that it can cause. To improve the 
evaluation of studies aiming to determine the most efficient treatment is necessary accuracy and 
precision during the assessment. Therefore, this study aimed to develop two diagrammatic scales 
based on grades and severity to evaluate septoriose severity on tomato leaves. The diagrammatic 
scale based on grades was developed and validated with eight grades, with severities ranging from 
0.67 to 100%. The diagrammatic scale based on severity values varied from 1.79 to 100%. More 
than 80% of the leaves collected from the field showed severity ranging from 0.1 to 20%, but there 
was a representative leaf for every interval chosen. Five inexperienced evaluators performed the 
validation of the scales, and the data were analysed with Lin?s statistics. Without the scales, most 
evaluators overestimated disease severity, whereas the use of the scales resulted in increased 
precision, accuracy, and reliability of the estimates. In conclusion, the proposed diagrammatic 
scales proved to be useful for assessments of septoriose severity in tomato leaves. The scales may 
be of interest to researchers performing studies on epidemiology, fungicides efficacy or breeding 
for resistance.

Palavras-Chave: | Disease assessment; Disease severity; Phytopathometry; Septoria leaf spot.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
URL: | http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_50030.pdf
Registro original: | Epagri-Sede (Epagri-Sede)
Exemplares: | Epagri-Sede - (106244-1) - UPC - AP - DD -  -  -  - DIS