松江市の栽培セリに発生する病害について(第3報)

Since the temperature was rather high in the winter of 1961-62, the occurence of a disease incited by Pythium was not so predominent in this growing season of Japanese Parseley in Matsue City, however, disease on Japanese Parseley incited by Septoria, Cladosporium and Puccinia were recognized this year. The optimum temperature for the growth of Septoria fungus was 20°-24℃, and the optimum hydrogen-ion concentration for the fungus was around pH 6-7.