Abstract
Stunted spray-type chrysanthemum plants were found in Shizuoka Prefecture in 1996. CSVd in Shizuoka consists of 354 nucleotides. Nucleotide sequence homology between the Shizuoka and Hyogo isolates was 99.7% and that between the Shizuoka and English isolates was 99.4%. Nine out of 10 chrysanthemum cultivars inoculated with this CSVd showed stunting symptoms. However, spray-type chrysanthemum cultivars were stunted more than standard type of chrysanthemum. Correlation between severity of stunting and concentration of CSVd was not found.
