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http://dx.doi.org/10.5423/RPD.2011.17.2.222

Sclerotium Rot of Onion Caused by Sclerotium rolfsii  

Kwon, Jin-Hyeuk (Gyeongsangnam-do Agricultural Research and Extension Services)
Kim, Hee-Dae (Gyeongsangnam-do Agricultural Research and Extension Services)
Choi, Ok-Hee (Department of Applied Biology, Gyeongsang National University)
Kwak, Youn-Sig (Department of Applied Biology, Gyeongsang National University)
Lee, Yong-Hwan (National Academy of Agricultural Science, RDA)
Shim, Hong-Sik (National Academy of Agricultural Science, RDA)
Publication Information
Research in Plant Disease / v.17, no.2, 2011 , pp. 222-224 More about this Journal
Abstract
The sclerotium rot of onion (Allium cepa L.) was occurred sporadically in the farmer's fields at Daehap, Changnyeong in Korea. The typical symptom was water-soaking on the bulb, stem and leaves and then rotting, wilting, blighting and the infected plants eventually were rotted and died. The sclerotia were globoid, 1-3 mm, and white to brown. The optimum temperature for mycelial growth and sclerotial formation on PDA was $30^{\circ}C$. The hyphal width was 4-9 ${\mu}m$. The typical clamp connections were observed in the hyphae of the fungus grown on PDA. On the basis of mycological characteristics, ITS rDNA sequence analysis, and pathogenicity, this fungus was identified as Sclerotium rolfsii Saccardo. To our knowledges, this is the first report of sclerotium rot on onion caused by S. rolfsii in Korea.
Keywords
Allium cepa; Onion; Sclerotium rolfsii; Sclerotium rot;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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