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KMID : 0379119990270040280
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Korean Journal of Mycology
1999 Volume.27 No. 4 p.280 ~ p.282
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Gray Mold Rot on Fruit of Cucumis melo var . reticulatus Caused by Botrytis cinerea
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권진혁/Kwon, Jin Hyeuk
강수웅/손경애/배동원/박창석/Kang, Soo Woong/Son, Kyeng Ae/Bae, Dong Won/Park, Chang Seuk
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Abstract
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A new disease on mask melon grown under plastic film houses was found in Namhae area in May of 1999. Gray to dark brown mold were grown on the surface of matured fruits and infected inside tissues were discolored and rotten. Basal part of the fruit and blossom-end were frequently infected and colonized by fungi. About 2.2% of matured fruits were infected in the surveyed plastic film houses. The causal organism was isolated from the lesion and identified as Botrytis cinerea. The conidia in mass were hyaline or gray, 1-celled, mostly ellipsoid or ovoid and sized 8.8∼21.2×6.5∼13.1 ㎛. Hyaline or pigmented conidiophores were tall, slender and determinated and, sometimes branched irregularly in upper part. Enlarged or rounded apical cells bear conidial cluster and sized 18.4∼81.1×4.3∼11.4 ㎛. Optimum temperature for mycelial growth was recorded at 15∼25℃. This is the first report on gray mold of melon caused by Botrytis cineria in Korea.
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