Occurrence of Chrysanthemum stunt viroid in Chrysanthemum in Korea

Chung, Bong Nam; Lim, Jin Hee; Choi, Seong Youl; Kim, Jeong Soo; Lee, Eun Jung

doi:2005.21.4.377

Plant Pathol J > Volume 21(4); 2005 > Article

The Plant Pathology Journal 2005;21(4):377-382.
DOI: https://doi.org/10.5423/PPJ.2005.21.4.377 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

Abstract

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