Phytopathology · 1991 · 39 citations · 0 references
AgriculturePlant PathologyPlant SciencesMycologyPlant PhysiologyPlant-microbe InteractionsFungal PathogenesisPlant PathogenesisPlant-pathogen InteractionsPlant-pathogenic FungiConidial DevelopmentConidial ViabilityHumidity Effects On InfectionPlant Fungal DiseaseRelative Humidity EffectsTemperature Effects On Fungal ActivityTemperature Effects On GerminationTemperature Effects On Infection
In vitro germination of conidia of Cercospora kikuchii was influenced by relative humidity. At 100% RH, 100% of the conidia germinated at all temperatures (15, 20, 25, 30, 35 C). No germination was observed below 92% RH. The temperature range tested did not alter the germination. The second fully developed trifoliate leaf of soybean (cv. Amsoy 71) was inoculated with a conidial suspension of C. kikuchii and then subjected to various temperatures (15, 20, 25, 30 C) and leaf wetness durations (18, 24, 30, 36 h). Disease severity was assessed 28 days later (...)