Identification of Chrysanthemum Genetic Resources Resistant to White Rust Caused by Puccinia horiana

• Published in: Plant breeding and biotechnology pp. 184 - 193
• Main Authors: 박상근, 임진희, 신학기, 정재아, 권영순, 김미선, 김기선
• Format: Journal Article
• Language: English
• Published: 한국육종학회 30.06.2014
• Subjects: 농학
• ISSN: 2287-9366; 2287-9358; 2287-9366
• DOI: 10.9787/pbb.2014.2.2.184

This experiment was carried out to identify genetic resources of chrysanthemum wild species and commercial cultivarsthat are resistant to white rust disease caused by Puccinia horiana. A total of 190 chrysanthemum accessions, composed of 11accessions belonging to six wild species and 179 commercial cultivars, were screened for resistance to P. horiana isolates collectedfrom Muan and Jeonju, the main production area of chrysanthemum in Korea. A total of 41 spray cultivars and three wild species(Chrysanthemum boreale, C. yoshinaganthum, and C. zawadskii) were identified as resistant. Nine standard and 28 spray cultivars withpoorly developed chlorotic lesions and pustules on the leaves were moderate resistant. The remaining 18 standard, 83 spray cultivarsand three wild species (Aster spathulifolius, C. indicum, and C. pacificum) were highly susceptible. The use of resistant cultivars is oneof the most efficient approaches for overcoming white rust disease in chrysanthemum cultivation. Therefore, these genetic resourcescan be used in crossbreeding programs for developing white rust resistant chrysanthemum cultivars. KCI Citation Count: 5