Data/hora: 08/06/2024 17:35:57

Provedor de dados: | Ciência Rural
País: | Brazil
Título: | A diagramatic scale to quantify severity of antracnose in Rubus glaucus Benth
Autores: | Patiño,Paula Andrea González; Álvarez,Gloria Edith Guerrero; Valencia,Liliana Isaza.
Data: | 2019-01-01
Ano: | 2019
Palavras-chave: | Colletotrichum acutatum; Epidemiology; Pathometry; Phytopathometry; Rubus glaucus Benth.
Resumo: | ABSTRACT:  Rubus glaucus Benth, commonly referred to as mora de Castilla, is affected by Colletotrichum acutatum, as it induces anthracnose in many of the plant organs. Generally, it affects the fruits during the post-harvest phase and damages them, causing economic losses due to the poor crop quality. At present, no standardized methods are available for this pathosystem that can be used to characterize quantitatively the epidemic and to permit the prediction and comparison of the disease management techniques. In this research, we proposed a logarithmic diagrammatic scale of the severity of anthracnose induced by C. acutatum in the fruits of the thornless variety of R. glaucus Benth. This scale is constructed on the adjustment of the Weber-Fechner law and includes six classes, viz., 0%, 1-6%, 7-25%, 26-50%, 51-75%, 76-100%. The scale was validated using 14 evaluators, which entailed measuring the affected fruits with and without utilizing the scale; this improved the precision, accuracy and reproducibility of the calculations whenever the scale was used. We concluded that the scale proposed can be used to assess the severity of anthracnose induced by the fungus in the R. glaucus Benth fruits.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000400150
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/0103-8478cr20180770
Formato: | text/html
Fonte: | Ciência Rural  v.49 n.4 2019
Fonte: | info:eu-repo/semantics/openAccess