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KMID : 0379120040320010050
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Korean Journal of Mycology
2004 Volume.32 No. 1 p.50 ~ p.53
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Gray Mold of Pisum sativum Caused by Botrytis cinerea in Korea
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Kwon Jin-Hyeuk
Park Chang-Suk
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Abstract
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In March of 2003, the gray mold occurred severely on pea (Pisum sativum) grown in the green houses and open fields in Changseon-myon, Namhae-gun, Gyeongnam Province, Korea. The symptoms started with water-soaking lesions in the leaves, stems and pods. The typical symptoms of the leaves, stems and pods became withered, discolored and blighted, and then eventually died. The mycelia, conidia and conidiophore of the pathogen appeared on leaves, stems and pods. The conidia were gray, 1-celled, mostly ellipsoid or ovoid in the shape and were $8{\sim}17{\times}5{\sim}13\;{\mu}m$ in size. Conidiophores were $14{\sim}30\;{\mu}m$ in size. The sclerotia were formed abundantly on potato dextrose agar. The optimum temperature for sclerotial formation was $20^{\circ}C$. Pathogenicity of the causal organism was proven according to Koch’s postulate. The causal organism was identified as Botrytis cinerea based on mycological characteristics. This is the first report on gray mold of Pisum sativum caused by B. cinerea in Korea.
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KEYWORD
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Botrytis cinerea, Gray mold, Pea, Pisum sativum
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