Short communication
Effects of humidity and temperature on ascospore discharge of Graphostroma platystoma in the laboratory and in the field
2004 Volume 45 Issue 3 Pages 227-230
Details
2004 Volume 45 Issue 3 Pages 227-230
The effects of air humidity and temperature on the ascospore discharge of Graphostroma platystoma were experimentally investigated. The ascospores were not discharged from the stromata in air at 100% relative humidity (RH). However, they were discharged from the wetted stromata at 3°, 10°, and 24°C under 100% RH or nearly so. The amount of the discharged ascospore was large at 24°C, medium at 10°C, and small at 3°C. The ascospores in the rainwater that washed down the stromata were counted after rainfall in the field. The discharge was observed from September to the following May.
