국내에서 육성한 감자품종의 역병 저항성평가

• Published in: Sigmulbyeong yeon'gu Vol. 12; no. 3; pp. 235 - 239
• Main Authors: 류경열(Kyoung-Yul Ryu), 지형진(Hyeong-Jin Jee), 심창기(Chang-Ki Shim), 이병모(Byung-Mo Lee), 박종호(Jong-Ho Park), 최두회(Du-Hoe Choi), 류갑희(Gab-Hee Ryu), 박영은(Young-Eun Park)
• Format: Journal Article
• Language: Korean
• Published: 한국식물병리학회 2006
• Subjects: 농학; Resistance; Haryeong; Potato; Late blight
• ISSN: 1598-2262; 2233-9191

Since the cultivation of resistance cultivar is essential for organic agriculture, Phytophthora late blight resistance of 16 advanced potato clones obtained from the potato breeding laboratory at the National Institute of Highland Agriculture was evaluated. Resistance of the clone was examined through artificial inoculation in the laboratory and in the field. Dominant isolates of the pathogen in Gangwon province produced abundant sporangia on leaves of most clones showing susceptibility. The number of sporangia ranged from $10^{7{\sim}8}sporangia/ml$ in the susceptible clones at 7 days after inoculation. However, one clone is resistant in organic farming fields. Disease incidence was 2.3% using the resistant clone. The area under disease progress curve(AUDPC) was 75.5. Contrarily, disease incidence of the susceptible variety was 100% and the AUDPC was 1773.5 during the same cultivation period. The resistance clone named as 'Haryeong' is considered suitable for organic potato cultivation in Gangwon province in Korea.