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http://dx.doi.org/10.5423/RPD.2002.8.2.117

Leaf Spot of Broad Bean (Vicia faba) Caused by Alternaria tenuissima  

Kwon, Jin-Hyeuk (경상남도농업기술원)
Park, Chang-Seuk (경상대학교 농과대학)
Publication Information
Research in Plant Disease / v.8, no.2, 2002 , pp. 117-119 More about this Journal
Abstract
Leaf spot disease was found on broad bean (vicia faba) in several farmer's fields located in Changseon-myon, Namhae-gun, Gyeongnam province, Korea. The typical symptoms of the disease were appeared on leaves, stems and pods. The infection rates of the disease in the surveyed area were ranged from 8.4 to 46.8％. Colonies formed on PDA were developed aerial hyphae with grayish white, which later turned olive-green to black. Conidia were dark brown in color, long ellipsoid to elongated ovoid, obclavate and 23.7~61.3$\times$7.2~16.8 ${\mu}{\textrm}{m}$ in size. Septa were 4~10 transvers, 1~2 longitudinal or oblique. Conidiophores were solitary or fascicles and 18~113$\times$3~6 ${\mu}{\textrm}{m}$ in size. The optimum temperature for growth of the fungus was about 3$0^{\circ}C$. This is the first report on the leaf spot of broad bean caused by Alternaria tenuissima in Korea.
Keywords
Alternaria tenuissima; broad bean; left spot; Vicia faba;
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