한국(韓國) 논포장(圃場) 월동균핵(越冬菌核)의 밀도(密度), 활성(活性) 및 균핵진균(菌核眞菌)의 병원성(病原性)

Density of Overwintered Sclerotia in Paddy Fields in Korea, Viability of the Sclerotia and Pathogenicity of the Sclerotial Fungi