Analysis and comparison of peanut pox epiphytes according to different cropping systems
The progress curves of peanut leaf spot, Cercospora arachidicola Hori and Cercosporidium personatum (Berk. & Curt.) Deighton, were studied in field crops for three growing seasons. The values of severity were logistically transformed. The initial disease (Y₀) was estimated by simple regressi...
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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Facultad de Ciencias Agropecuarias
1992
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| Acceso en línea: | https://revistas.unc.edu.ar/index.php/agris/article/view/2375 |
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I10-R352-article-2375 |
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I10-R352-article-23752024-09-10T18:30:53Z Analysis and comparison of peanut pox epiphytes according to different cropping systems Análisis y comparación de epifitias de la viruela del maní según distintos sistemas de cultivo Marinelli, A. March, G. J. Alcalde, M. Acquarone, S. Arachis hypogaea L peanut leafspot epiphytiology Arachis hypogaea L viruela del maní epifitiología The progress curves of peanut leaf spot, Cercospora arachidicola Hori and Cercosporidium personatum (Berk. & Curt.) Deighton, were studied in field crops for three growing seasons. The values of severity were logistically transformed. The initial disease (Y₀) was estimated by simple regression of the "logit" over time. The parameters used in this research were: a) initial disease; b) epiphytic rates; c) effects of fungicide applications; and d) total effect of disease measured as the area under the disease progress curve (AUDPC). Usually, crop rotation showed lower values of initial disease (Y₀) and higher values of initial epiphytic rates (r₀). Generally, the latent period after the applications of flusilazole (systemic fungicide) was shorter than that when contact fungicides (fentin acetate, fentin hydroxide, and mancozeb) were used, and the effective period was longer. Durante tres campañas agrícolas se estudiaron las curvas epifíticas de la viruela del maní, Cercospora arachidicola Hony y Cercosporidium personatum (Berky Curt.) Deighton, en cultivos comerciales sometidos a diferentes manejos. Los valores de severidad de la enfermedad fueron transformados a "logit", estimándose la enfermedad inicial (Y₀) por regresión lineal. Para analizar y comparar las diferentes curvas se consideraron: a) enfermedad inicial; b) tasas de incremento; c) efectos de los tratamientos fungicidas; y d) efecto total de la enfermedad calculado a través del área bajo la curva (AUDPC). En general, las rotaciones de maní con otros cultivos mostraron menores valores de enfermedad inicial (Y₀) y mayores tasas iniciales de incremento de la viruela (r₀). Los tratamientos con el fungicida flusilazole (acción sistémica) significaron generalmente menor período de latencia durante el cual no se manifestó el efecto fungicida después de su aplicación (p), y mayor duración del período efectivo que cuando se emplearon fungicidas de contacto (trifenil acetato de estaño, trifenil hidróxido de estaño y mancozeb). Facultad de Ciencias Agropecuarias 1992-07-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unc.edu.ar/index.php/agris/article/view/2375 10.31047/1668.298x.v9.n2.2375 AgriScientia; Vol. 9 No. 2 (1992); 71-78 AgriScientia; Vol. 9 Núm. 2 (1992); 71-78 1668-298X 10.31047/1668.298x.v9.n2 spa https://revistas.unc.edu.ar/index.php/agris/article/view/2375/1321 Derechos de autor 1992 A. Marinelli, G. J. March, M. Alcalde, S. Acquarone https://creativecommons.org/licenses/by-sa/4.0 |
| institution |
Universidad Nacional de Córdoba |
| institution_str |
I-10 |
| repository_str |
R-352 |
| container_title_str |
AgriScientia |
| language |
Español |
| format |
Artículo revista |
| topic |
Arachis hypogaea L peanut leafspot epiphytiology Arachis hypogaea L viruela del maní epifitiología |
| spellingShingle |
Arachis hypogaea L peanut leafspot epiphytiology Arachis hypogaea L viruela del maní epifitiología Marinelli, A. March, G. J. Alcalde, M. Acquarone, S. Analysis and comparison of peanut pox epiphytes according to different cropping systems |
| topic_facet |
Arachis hypogaea L peanut leafspot epiphytiology Arachis hypogaea L viruela del maní epifitiología |
| author |
Marinelli, A. March, G. J. Alcalde, M. Acquarone, S. |
| author_facet |
Marinelli, A. March, G. J. Alcalde, M. Acquarone, S. |
| author_sort |
Marinelli, A. |
| title |
Analysis and comparison of peanut pox epiphytes according to different cropping systems |
| title_short |
Analysis and comparison of peanut pox epiphytes according to different cropping systems |
| title_full |
Analysis and comparison of peanut pox epiphytes according to different cropping systems |
| title_fullStr |
Analysis and comparison of peanut pox epiphytes according to different cropping systems |
| title_full_unstemmed |
Analysis and comparison of peanut pox epiphytes according to different cropping systems |
| title_sort |
analysis and comparison of peanut pox epiphytes according to different cropping systems |
| description |
The progress curves of peanut leaf spot, Cercospora arachidicola Hori and Cercosporidium personatum (Berk. & Curt.) Deighton, were studied in field crops for three growing seasons. The values of severity were logistically transformed. The initial disease (Y₀) was estimated by simple regression of the "logit" over time. The parameters used in this research were: a) initial disease; b) epiphytic rates; c) effects of fungicide applications; and d) total effect of disease measured as the area under the disease progress curve (AUDPC). Usually, crop rotation showed lower values of initial disease (Y₀) and higher values of initial epiphytic rates (r₀). Generally, the latent period after the applications of flusilazole (systemic fungicide) was shorter than that when contact fungicides (fentin acetate, fentin hydroxide, and mancozeb) were used, and the effective period was longer. |
| publisher |
Facultad de Ciencias Agropecuarias |
| publishDate |
1992 |
| url |
https://revistas.unc.edu.ar/index.php/agris/article/view/2375 |
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2024-09-03T22:15:03Z |
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2025-02-05T22:11:54Z |
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