[Isolation and identification of pathogen of seedling blight of Platycodon grandiflorum].

ABSTRACT

OBJECTIVE: To isolate and identify pathogen of the seedling blight occurred in Platycodon grandiflorum. METHOD: The morphological observation, rDNA ITS sequence analysis, and Koch's postulates were used to identify the isolates of the causal agent. RESULT: The isolates of the causal agent was Rhizoctonia solani. CONCLUSION: The result confirmed that R. solani is the pathogen of seedling blight of P. grandiflorum.