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http://dx.doi.org/10.5423/RPD.2006.12.3.235

Evaluation of Phytophthora Late Blight Resistance of Potato Variety in Korea  

Ryu, Kyoung-Yul (Organic Farming Technology Division, National Institute of Agricultural Science and Technology, RDA)
Jee, Hyeong-Jin (Organic Farming Technology Division, National Institute of Agricultural Science and Technology, RDA)
Shim, Chang-Ki (Organic Farming Technology Division, National Institute of Agricultural Science and Technology, RDA)
Lee, Byung-Mo (Organic Farming Technology Division, National Institute of Agricultural Science and Technology, RDA)
Park, Jong-Ho (Organic Farming Technology Division, National Institute of Agricultural Science and Technology, RDA)
Choi, Du-Hoe (Organic Farming Technology Division, National Institute of Agricultural Science and Technology, RDA)
Ryu, Gab-Hee (Organic Farming Technology Division, National Institute of Agricultural Science and Technology, RDA)
Park, Young-Eun (Crop Research Division, National Institute of Highland Agriculture, RDA)
Publication Information
Research in Plant Disease / v.12, no.3, 2006 , pp. 235-239 More about this Journal
Abstract
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.
Keywords
Haryeong; Late blight; Potato; Resistance;
Citations & Related Records
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