| 양액 재배시 발생하는 Pythium myriotylum에 의한 감자 줄기기부썩음병 |
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홍순영, 김진원, 강영길, 양영문, 강형식 |
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| Potato Basal Stem Rot Caused by Pythium myriotylum in Hydroponic Cultural System |
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Soon Yeong Hong, Jin Won Kim, Yong Kil Kang, Young Moon Yang, Hyeong Sik Kang |
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| Abstract |
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A basal stem rot disease of potato (Solanum tubersum) grown on hydroponic system in greenhouse was found in Jeju-city, Jeju Province of Korea in January 2001. The symptoms occurred on basel stem and root, and than plants eventually were died. The casual fungus isolate from basal stem rot symptom and identified to be Pythium myriotylum on the basis of mycological characteristics; Main hyphae wide were 8.4 mm in size. Oogonia were spherical, smooth, mostly terminal in shape and 26.4~31.2 mm in size. Antheridia were 9.6~14.4 × 4.8~9.6 mm in size. Oospores were spherical, smooth, aplerotic in shape and 21.6~26.4 mm in size. This is the first report on the basal stem rot of potato caused by P. myriotylum in Korea. |
| Key Words:
Basal stem rot, Hydroponic cultural System, Potato, Pythium myriotylum |
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