The Plant Pathology Journal
- 제16권4호
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- Pages.222-226
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- 2000
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- 2093-9280(eISSN)
In Vitro Sensitivity to Metalaxyl of Phytophthora parasitica var. nicotianae Isolates from Burley Tobacco in Korea
- Kang, Yue-Gyu (Korea Ginseng, Tobacco Research Institute, Suwon Experiment Station)
- 발행 : 2000.08.01
초록
In disease surveys from 1986 ti 1998, disease incidence of tobacco black shank was gradually increased in burley tobacco from 1996. To study the causes of the disease occurrence, one hundred and fourteen isolates of Phytophthora parasitica var. nicotianae (Ppn) were collected from burley tobacco-growing areas in the southern part of Korea during 1996-1997, and tested in vitro for meatlaxyl sensitivity which was determined by measuring the mycelial growth on corn meal agar (CMA) amended with metalaxyl. Of the tested isolates, 78.1% showed sensitive to metalaxyl, having