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Artículo

Diagrammatic scale for quantification of severity of white thread blight disease in yerba mate (Ilex paraguariensis Saint Hilaire)

Vereschuk, Manuela LizzIcon ; Dominguez, Facundo GabrielIcon ; Alvarenga, Adriana ElizabetIcon ; Zapata, Pedro DarioIcon
Fecha de publicación: 08/2022
Editorial: Academia Brasileira de Ciencias
Revista: Anais da Academia Brasileira de Ciencias
ISSN: 1678-2690
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Agronomía, reproducción y protección de plantas

Resumen

The yerba-mate industry is one of the most important economic activities in Misiones, a province in the northeast of Argentina that is the world’s leading producer and exporter of this crop. White thread blight disease caused by Ceratobasidium niltonzousanum affects the cultivation reducing its quality and productivity. Due to the lack of a standardized visual method to quantify the severity of this disease in yerba mate, a diagrammatic scale was developed and validated. Yerba-mate branches were collected in a field in the north of Misiones province, and the actual severity was determined digitally. A six-level scale was developed using the DOSLOG software, based on the Weber-Fechner law. The validation was carried out by twenty raters. One evaluation without the diagrammatic scale and two evaluations with the scale were carried out in 14-day intervals. Accuracy, precision, and reproducibility of the scale were evaluated through linear regressions and correlation analysis, obtaining R2 values ranged between 0.70 and 0.94. Using the diagrammatic scale developed in this work, raters enhanced the accuracy and precision of the estimates, and the repeatability of the scale improved by 94.74%. The scale was appropriate to assess the damage of white thread blight in yerba mate.
Palabras clave: CERATOBASIDIUM NILTONZOUSANUM , PHYTOPATHOLOGY , PHYTOPATOMETRY , WEBER-FECHNER LAW
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution 2.5 Unported (CC BY 2.5)
Identificadores
URI: http://hdl.handle.net/11336/201119
URL: https://www.scielo.br/j/aabc/a/DYHgfrjTgSrVqFqcwSSsDFJ/?lang=en
DOI: https://doi.org/10.1590/0001-3765202220201931
Colecciones
Articulos(PROIMI)
Articulos de PLANTA PILOTO DE PROC.IND.MICROBIOLOGICOS (I)
Citación
Vereschuk, Manuela Lizz; Dominguez, Facundo Gabriel; Alvarenga, Adriana Elizabet; Zapata, Pedro Dario; Diagrammatic scale for quantification of severity of white thread blight disease in yerba mate (Ilex paraguariensis Saint Hilaire); Academia Brasileira de Ciencias; Anais da Academia Brasileira de Ciencias; 94; 3; 8-2022; 1-8
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