Abstract

백합 구근저장고에서 채취한 부패한 구근을 부패 형태별로 구분하여 관여하는 미생물을 동정하고 상처 접종으로 병원성을 조사한 결과 부패 형태는 기저부 갈색 부패, 신초부 갈색 부패, 수침상 부패 및 푸른곰팡이 등 4가지로 구분하였다. 기저부 갈색 부패가 72.5%로 빈도가 가장 높았고, 신초부 갈색 부패가 23%로 빈도가 가장 낮았다. 부패 형태별로 우점균이 달라 기저부 갈색 부패는 Fusarium oxysporum, 푸른색 부패와 신초부 갈색 부패에서는 Penicillium brevicompactum과 P. fellutanum이 우점균 이었다. 몇 가지 살균제를 이용한 백합 구근 소독효과를 조사하였던 바 ???L탄 수화제가 방제가 95.2%로 가장 방제효과가 높았으며, 지오판 수화제, 프로라츠 유제, 지오람 수화제 및 벤레이트티 수화제는 각각 85.6%, 71.8%, 62.5% 및 62.0%였다. Several pathogens associated with bulb rot of lilies in storage house were identified with respect to rot types. Rot patterns were grouped into four different types; brown rot of bottoms, brown rot of shoots, water-soaked rot and blue mold. Brown rot of bottoms was the highest in frequency with 72.5%, and brown rot of shoots the least with 23.0%. Dominant pathogens were differed with rot patterns, brown rot of bottoms by Fusarium oxysporum, blue mold and brown rot of shoots by Penicillium brevicompactum and P. fellutanum. In wound-inoculation tests, Penicillium and Fusarium isolates caused severe rot on the bulbs. Bulb disinfection before storage by captan showed the most prominent control value of 95.2% followed by thiophanate-methyl with 85.6%.

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