Abstract

신나팔나리(Lilium x fomolongi) 뇌산 품종 실생묘에 Cucumber mosaic virus(CMV), Lily mottle virus(LMoV) 및 Lily symptomless virus(LSV)를 인공적으로 접종하여 생육에 미치는 영향을 조사하였다. 또한 재배포장에서 자연감염된 바이러스 병징과 감염율을 조사하였다. 재배포장에서 가장 많이 관찰되는 병징은 LMoV 감염에 의한 잎 모틀 증상이었다. 바이러스 감염율은 6년 이상 재 사용된 구근으로 재배하는 포장의 경우 CMV, LSV, LMoV 바이러스 가운데 두 종류 이상의 바이러스에 의한 복합 감염율은 80% 가량이었다. 신나팔나리 (Lilium x fomolongi) 품종 뇌산에 CMV-Li1과 LMoV-Li 복합감염시 건전주에 비해 초장 14%, 생체중 38%, 꽃 길이가 15% 감소하였다. CMV-Li1과 LMoV-Li 단독감염시에도 생체중은 건전주에 비해 각각 21.8%, 28.4%의 유의성 있는 감소를 보였다. Damages caused by infection with Cucumber mosaic virus (CMV), Lily mottle virus (LMoV) and Lily symptomless virus (LSV) were assessed by comparing growth of plants produced from seeds of Lilium x fomolongi cultivar 'Noesan' both infected and free from infection with those viruses. Symptoms and infection rate were investigated in field-grown lily.Dominant viral infection symptom in the field was mottle on leaves, caused by natural infection with LMoV. Incidence of viral disease caused by mixed infection with two of LMoV, CMV and LSV in field-grown Lilium x fomolongi cultivars, reused for more than 6 years consecutively, was 80 percent. In comparison with healthy Lilium x fomolongi cultivar 'Noesan', plants doubly infected with CMV-Li1 and LMoV-Li diminished their plant height by 14 percent, fresh weight by 38 percent, and flower length by 15 percent. Lily plants singly infected with CMV-Li1 or LMoV-Li significantly reduced their freish weight by 21.8% and 28.4% compared to healthy plants, respectively.

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