Research in Plant Disease 2003;9(2):79-84.
Published online June 30, 2003.
Fusarium oxysporum f. sp. cyclaminis에 의한 시클라멘 시들음병 발생 및 저항성 품종 선발
김진영, 김홍기, 홍순성, 김진원, 박경열
Occurrence of Fusarium wilt on Cyclamen Caused by Fusarium oxysporum f. sp. cyclaminis and Selection of Resistant Cultivars
Jin Young Kim, Hong Gi Kim, Sun Sung Hong, Jin Won Kim, Kyeong Yeol Park
A wilt disease of commercial cyclamen (Cyclamen persicum) which grown in greenhouse was found in Gyeonggi province of Korea during the period from August, 2001 to July, 2002. The disease incidence was up to 42.7% in Kimpo, Gyeonggi province. The disease was more severe in ebb and flow irrigation system than conventional overhead flooding`s. The wilted cyclamen plants showed the chlorosis of leaves and followed by the death. The vascular tissues of the infected basal stem and bulb were discolored with black streaks. The casual fungus was identified to be Fusarium oxysporum f. sp. cyclaminis on the basis of mycological characteristics. Effect of infected soil showed 100% infection rate when the cyclamen plants were grown in potting with infested soil. Examine resistant cultivar showed ``Matis red``, ``Schubert``, ``Victoria`` and ``Chopin`` were the resistant cultivars but most of cultivars were susceptible to Fusarium wilt. The control effect of chemicals for cyclamen wilt was not much efficient to curative effects even though. Benomyl WP and Fludioxonil SC on the Fusarium wilt had only preventive effects by soil drenching in the pot before inoculation of F. oxysporum. This is the first report on the fusarium wilt of cyclamen caused by F. oxysporum f. sp. cyclaminis in Korea.
Key Words: Cyclamen persicum, fungicides, Fusarium oxysporum, resistant cultivar

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