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Damping-off of Edible Amaranth Caused by Rhizoctonia solani AG-4

한국균학회지 2020년 48권 3호 p.325 ~ 328
김완규, 심홍식, 이교빈, 조원대,
소속 상세정보
김완규 ( Kim Wan-Gyu ) - Global Agro-Consulting Corporation
심홍식 ( Shim Hong-Sik ) - Global Agro-Consulting Corporation
이교빈 ( Lee Gyo-Bin ) - Global Agro-Consulting Corporation
조원대 ( Cho Weon-Dae ) - Global Agro-Consulting Corporation

Abstract


Damping-off symptoms were frequently observed on young plants of edible amaranth (Amaranthus mangostanus) grown in vinyl greenhouses by farmers located in Goyang and Yangpyeong in Korea during disease surveys carried out in 2019 and 2020. The incidence of the disease was 1?20%. A total of eight isolates of Rhizoctonia sp. were obtained from the stems of the diseased plants. All the isolates were identified as Rhizoctonia solani AG-4, based on the morphological characteristics and anastomosis test. Three isolates of R. solani AG-4 were tested for pathogenicity on edible amaranth by artificial inoculation. All the tested isolates of R. solani AG-4 induced damping-off symptoms on the inoculated plants; these symptoms were similar to those observed on the vinyl greenhouse plants surveyed. This is the first report of R. solani AG-4 causing damping-off in edible amaranth.

키워드

anastomosis group; damping-off; edible amaranth; pathogenicity; Rhizoctonia solani

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