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An analysis of the variability of the germinative power of conidia in a number of fungi belonging to the Peronosporales
  • G. A. Weille
  • Environmental Science
    Netherlands Journal of Plant Pathology
  • 1 March 1963
It is not impossible that the denounced variability of sporal material is also, at least partly, responsible for the fact that the radiation responses of several Peronosporales, inter alia the potato blight fungus, remained undiscovered.
Laboratory results regarding potato blight and their significance in the epidemiology of blight
Under natural light conditions conidia are formed at night, subsequent maturation taking place the following morning, and maximum germinative power is attained in the afternoon or evening; thereafter it declines.
Some remarks regarding biological observations in behalf of agrometeorological investigations concerning the epidemiology of plant diseases and pests
In cases in which curative control measures can be successfully taken the fundamental approach is also valuable, but the empirical method advocated byourke can be of value for more quickly obtaining a solutin in the form of a warning system noticing critical periods.