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Effect of temperature on incidence and severity of anthracnose on white bean

By: Material type: ArticleArticleLanguage: English Description: 66(9):781-783Subject(s): LOC classification:
  • 17836
 In: Plant DiseaseSummary: Las temp. de verano del sur de Ontario, Canada, son generalmente favorables para la infeccion del frijol blanco por Colletotrichum lindemuthianum cuando hay humedad libre en el follaje de la planta. No se presentaron sintomas en plantas inoculadas mantenidas a temp. constantes de 28 y 32 grados Centigrados, pero si se presentaron cuando se redujeron las temp. nocturnas. Los sintomas se presentaron facilmente en el campo debido a que las temp. altas solo duraban unas pocas horas en el dia. Las plantas que se mantuvieron continuamente a 28 y 32 grados Centigrados durante 2-3 dias, antes de la inoculacion, mostraron una susceptibilidad solo ligeramente menor. El aumento en la temp. diurnas altas a medida que transcurria el verano prolongo el periodo de incubacion y disminuyo ligeramente la severidad de la enfermedad. (RA-CIAT)Summary: In southern Ontario, Canada, summer temp. are generally favorable for infection of beans by Colletotrichum lindemuthianum if free moisture is present on white bean foliage. Symptoms did not develop on inoculated plants held at constant temp. of 28 and 32 degrees Celsius, but did if night temp. were lowered. Symptoms readily occurred in the field because such high temp. usually lasted only a few hours during daytime. Plants held at 28 and 32 degrees Celsius continuously for 2-3 days prior to inoculation were only slightly less susceptible. Increases in high day temp. as the summer advanced prolonged the incubation period and slightly decreased disease severity. (AS)
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Item type Current library Collection Call number Copy number Status Date due Barcode Item holds
Journal Article Journal Article CIAT Library Document collection CINFOS Document Collection CINFOS 17836 (Browse shelf(Opens below)) c.1 Short Loan 100066880
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Las temp. de verano del sur de Ontario, Canada, son generalmente favorables para la infeccion del frijol blanco por Colletotrichum lindemuthianum cuando hay humedad libre en el follaje de la planta. No se presentaron sintomas en plantas inoculadas mantenidas a temp. constantes de 28 y 32 grados Centigrados, pero si se presentaron cuando se redujeron las temp. nocturnas. Los sintomas se presentaron facilmente en el campo debido a que las temp. altas solo duraban unas pocas horas en el dia. Las plantas que se mantuvieron continuamente a 28 y 32 grados Centigrados durante 2-3 dias, antes de la inoculacion, mostraron una susceptibilidad solo ligeramente menor. El aumento en la temp. diurnas altas a medida que transcurria el verano prolongo el periodo de incubacion y disminuyo ligeramente la severidad de la enfermedad. (RA-CIAT) spa

In southern Ontario, Canada, summer temp. are generally favorable for infection of beans by Colletotrichum lindemuthianum if free moisture is present on white bean foliage. Symptoms did not develop on inoculated plants held at constant temp. of 28 and 32 degrees Celsius, but did if night temp. were lowered. Symptoms readily occurred in the field because such high temp. usually lasted only a few hours during daytime. Plants held at 28 and 32 degrees Celsius continuously for 2-3 days prior to inoculation were only slightly less susceptible. Increases in high day temp. as the summer advanced prolonged the incubation period and slightly decreased disease severity. (AS) eng

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