Plant Pathol J > Volume 21(4); 2005 > Article
The Plant Pathology Journal 2005;21(4):377-382.
DOI:    Published online December 31, 2005.
Occurrence of Chrysanthemum stunt viroid in Chrysanthemum in Korea
Bong Nam Chung, Jin Hee Lim, Seong Youl Choi, Jeong Soo Kim, Eun Jung Lee
Infection rate of Chrysanthemum stunt viroid (CSVd) in 64 commercial chrysanthemum cultivars cultivated in Korea ranged from 9.7 to 66.8%. Symptoms on leaves of CSVd-infected chrysanthemum included yellow spots,chlorosis, vein clearing, vein bending and crumpling. CSVd induced flower malformation in ``Scot``, color change in ``Sharotte``, and color breaking in ``Sharon``. CSVd caused reduction of plant height, leaf size, flower size and the flowers number by 32-50%, 26-35%, 14- 36% and 14-75%, respectively. In conclusion, CSVd affected plant height, leaf size and flower quality in chrysanthemum plants.
Key Words: Chrysanthemum stunt viroid, Dendranthema grandiflorum, infection rate

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