Desarrollo y validación de una escala para evaluación de daño por orugas defoliadoras en soja (Glycine max L.), para el sur de la provincia de Córdoba
To develop and validate a diagrammatic logarithmic scale to assess the damage caused by defoliating caterpillars in the soybean crop for the South central of Cordoba, damaged leaflets were collected to obtain the maximum defoliation value. Scanning each leaflet, defoliation percentage was calculate...
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Facultad de Ciencias Agrarias-UNCuyo
2022
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| Acceso en línea: | https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/6135 |
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I11-R107article-61352022-10-18T17:30:45Z Development and validation of a scale to evaluate defoliating caterpillars damage in soybean (Glycine max L.), for South of the province of Cordoba Desarrollo y validación de una escala para evaluación de daño por orugas defoliadoras en soja (Glycine max L.), para el sur de la provincia de Córdoba Boito, Graciela Teresa Crenna, Ana Cecilia Giuggia, Jorge Antonio Giovanini, Diego Oddino, Claudio Gerardo, Ulises Abel escala logarítmica diagramática orugas defoliadoras soja logarithmic diagrammatic scale defoliating caterpillars soybean To develop and validate a diagrammatic logarithmic scale to assess the damage caused by defoliating caterpillars in the soybean crop for the South central of Cordoba, damaged leaflets were collected to obtain the maximum defoliation value. Scanning each leaflet, defoliation percentage was calculated by the software WinFolia. Middle value per each class of a seven classes scale was obtained with DOSLOG. Later 140 leaflets, which actual defoliation was determined by WinFolia, were evaluated by six experienced and six inexperienced raters, with and without using the scale. The precision and accuracy validation was determined by using simple linear regression between actual and estimated defoliation, and reproducibility was determined by regressing the 140 estimations of each rater on the estimations made by every other raters. Without using the scale most raters overestimated defoliation, indicating positive constant deviations for all levels of defoliation and in 9 of 12 raters occurred systematic deviations. Accuracy (-1.74 to 1.39) and precision (0.77 to 0.90) improved significantly with the use of the scale. As well as reproducibility was improved. The diagrammatic logarithmic scale is suitable for assess damage caused by defoliating caterpillars in soybean crops in South-Central region of Cordoba. Para desarrollar y validar una escala logarítmica diagramática de evaluación de daño por orugas defoliadoras al cultivo de soja, para el centro-sur de Córdoba, se colectaron folíolos dañados a fin de obtener la máxima defoliación presente. Se calculó el porcentaje de defoliación escaneando cada folíolo, utilizando el software WinFolia. Se planteó una escala de siete clases obteniendo el valor medio de cada una con el programa DOSLOG. Posteriormente 140 folíolos, cuya defoliación real se determinó con WinFolia, fueron evaluados por seis evaluadores con y sin experiencia previa en estimaciones de defoliación, con y sin escala. La validación por precisión y exactitud se realizó por regresión lineal simple entre la defoliación real y la estimada, y la reproducibilidad por regresión entre las 140 estimaciones de los evaluadores combinados de a pares. Sin la escala la mayoría de los evaluadores sobreestimaron la defoliación, indicando desvíos positivos constantes para todos los niveles, y en 9 de 12 evaluadores ocurrieron desvíos sistemáticos. Con la escala mejoró la exactitud (-1,74 a 1,39), precisión (0,77 a 0,90) y reproducibilidad, por lo que se la considera adecuada para evaluaciones de daños causados por orugas defoliadoras al cultivo de soja, en la región centro-sur de Córdoba. Facultad de Ciencias Agrarias-UNCuyo 2022-10-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/6135 Revista de la Facultad de Ciencias Agrarias UNCuyo; Vol. 45 No. 1 (2013): January-June; 91-104 Revista de la Facultad de Ciencias Agrarias UNCuyo; Vol. 45 Núm. 1 (2013): Enero-Junio; 91-104 1853-8665 0370-4661 spa https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/6135/4996 https://creativecommons.org/licenses/by-nc-sa/3.0/deed.es |
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Universidad Nacional de Cuyo |
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Revistas en línea |
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Revista de la Facultad de Ciencias Agrarias |
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Revista de la Facultad de Ciencias Agrarias |
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R-107 |
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Online |
| author |
Boito, Graciela Teresa Crenna, Ana Cecilia Giuggia, Jorge Antonio Giovanini, Diego Oddino, Claudio Gerardo, Ulises Abel |
| spellingShingle |
Boito, Graciela Teresa Crenna, Ana Cecilia Giuggia, Jorge Antonio Giovanini, Diego Oddino, Claudio Gerardo, Ulises Abel Desarrollo y validación de una escala para evaluación de daño por orugas defoliadoras en soja (Glycine max L.), para el sur de la provincia de Córdoba escala logarítmica diagramática orugas defoliadoras soja logarithmic diagrammatic scale defoliating caterpillars soybean |
| author_facet |
Boito, Graciela Teresa Crenna, Ana Cecilia Giuggia, Jorge Antonio Giovanini, Diego Oddino, Claudio Gerardo, Ulises Abel |
| author_sort |
Boito, Graciela Teresa |
| title |
Desarrollo y validación de una escala para evaluación de daño por orugas defoliadoras en soja (Glycine max L.), para el sur de la provincia de Córdoba |
| title_short |
Desarrollo y validación de una escala para evaluación de daño por orugas defoliadoras en soja (Glycine max L.), para el sur de la provincia de Córdoba |
| title_full |
Desarrollo y validación de una escala para evaluación de daño por orugas defoliadoras en soja (Glycine max L.), para el sur de la provincia de Córdoba |
| title_fullStr |
Desarrollo y validación de una escala para evaluación de daño por orugas defoliadoras en soja (Glycine max L.), para el sur de la provincia de Córdoba |
| title_full_unstemmed |
Desarrollo y validación de una escala para evaluación de daño por orugas defoliadoras en soja (Glycine max L.), para el sur de la provincia de Córdoba |
| title_sort |
development and validation of a scale to evaluate defoliating caterpillars damage in soybean (glycine max l.), for south of the province of cordoba |
| description |
To develop and validate a diagrammatic logarithmic scale to assess the damage caused by defoliating caterpillars in the soybean crop for the South central of Cordoba, damaged leaflets were collected to obtain the maximum defoliation value. Scanning each leaflet, defoliation percentage was calculated by the software WinFolia. Middle value per each class of a seven classes scale was obtained with DOSLOG. Later 140 leaflets, which actual defoliation was determined by WinFolia, were evaluated by six experienced and six inexperienced raters, with and without using the scale. The precision and accuracy validation was determined by using simple linear regression between actual and estimated defoliation, and reproducibility was determined by regressing the 140 estimations of each rater on the estimations made by every other raters. Without using the scale most raters overestimated defoliation, indicating positive constant deviations for all levels of defoliation and in 9 of 12 raters occurred systematic deviations. Accuracy (-1.74 to 1.39) and precision (0.77 to 0.90) improved significantly with the use of the scale. As well as reproducibility was improved. The diagrammatic logarithmic scale is suitable for assess damage caused by defoliating caterpillars in soybean crops in South-Central region of Cordoba. |
| publisher |
Facultad de Ciencias Agrarias-UNCuyo |
| publishDate |
2022 |
| url |
https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/6135 |
| topic |
escala logarítmica diagramática orugas defoliadoras soja logarithmic diagrammatic scale defoliating caterpillars soybean |
| topic_facet |
escala logarítmica diagramática orugas defoliadoras soja logarithmic diagrammatic scale defoliating caterpillars soybean |
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