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http://dx.doi.org/10.5423/RPD.2016.22.4.293

Stalk Rot Caused by Fusarium thapsinum on Sorghum at Organic Paddy-upland Rotation System in Korea  

Kim, Byung-Ryun (Agricultural Environment Division, Chungcheongnam-do Agricultural Research & Extension Services)
Han, Kwang-Seop (Agricultural Environment Division, Chungcheongnam-do Agricultural Research & Extension Services)
Hahm, Soo-Sang (Agricultural Environment Division, Chungcheongnam-do Agricultural Research & Extension Services)
Kang, Young-Sik (Crop Research Division, Chungcheongnam-do Agricultural Research & Extension Services)
Park, In-Hee (Agricultural Environment Division, Chungcheongnam-do Agricultural Research & Extension Services)
Yoon, Seong Tak (College of Bio-Resource Science, Dankook University)
Publication Information
Research in Plant Disease / v.22, no.4, 2016 , pp. 293-296 More about this Journal
Abstract
In late June 2016, stalk rot symptoms were observed on five vatieties of sorghum (Sorghum bicolar) at organic paddy-upland rotation system in Anseong city, Korea. The initial symptom on stalk surfaces was red color with a dark red spot lesion. A fungus was isolated from the initial lesion, and cultured on potato dextrose agar. Size of microconidia mostly extend to $5-19{\times}2-{\mu}m$ in culture, with 0-1 septa and macroconidia extend to $29-52{\times}3-4{\mu}m$ with 4-6 septa. Pathogenicity was investigated using conidial suspension spray to seedling of sorghum. After 3 days of inoculation, the dark red lesion was produced on stalks. On the basis of mycological characteristics, pathogenicity, and internal transcribed spacer (ITS) rDNA sequence analysis, this fungus was identified as Fusarium thapsinum. This is the first report of stalk rot on sorghum caused by F. thapsinum in Korea.
Keywords
Fusarium thapsinum; Sorghum; Stalk rot;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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