Damages caused by infection with viruses in cut-flower production of Lilium $\chi$. fomolongi

  • B. N. Chung (Horticultural Environment Division, National Horticulture Research Institute, RDA, Suwon,) ;
  • Lee, E. J. (Horticultural Environment Division, National Horticulture Research Institute, RDA, Suwon,) ;
  • J. A. Jung (Horticultural Environment Division, National Horticulture Research Institute, RDA, Suwon,) ;
  • Kim, H. R. (Horticultural Environment Division, National Horticulture Research Institute, RDA, Suwon,) ;
  • Park, G. S. (Horticultural Environment Division, National Horticulture Research Institute, RDA, Suwon,) ;
  • Kim, J. S. (Horticultural Environment Division, National Horticulture Research Institute, RDA, Suwon,)
  • Published : 2003.10.01

Abstract

Viral disease symptoms were investigated in the field grown Longiflorum hybrid cultivars, and the damages caused by infection with Lily mottle virus (LMoV) and Cucumber mosaic virus (CMV) were assessed by comparing growth of plants produced from seeds of Longiflorum hybrid cultivar both infected by artificial inoculation and free from infection with theses viruses. Dominant symptom caused by spotaneous infection with LMoV and CMV in the field was mottle combined with chlorotic stripe on leaves. LMoV developed brownish necrotic lesion on floral leaves. The incidence of viral disease by mixed infection with LMoV, CMV or Lily symptomless virus (LSV) in the filed grown Longiflorum hybrid cultivar, cultivated for more than 6 years, was 80 to 84 percent. In comparison with virus-free plants, plants doubly infected with CMV and LMoV by artificial inoculation decreased stem length by 14 percent and fresh weight by 38 percent. In conclusion, flower quality and the stem length of Longiflorum hybrid cultivar were affected by LMoV and CMV infection.

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