The Plant Pathology Journal

The Korean Society of Plant Pathology (한국식물병리학회)
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Outbreak of Rice Blast Disease at Yeoju of Korea in 2020

  • Chung, Hyunjung (Crop Cultivation and Environment Research Division, National Institute of Crop Science, Rural Development Administration) ;
  • Jeong, Da Gyeong (Crop Cultivation and Environment Research Division, National Institute of Crop Science, Rural Development Administration) ;
  • Lee, Ji-Hyun (Crop Cultivation and Environment Research Division, National Institute of Crop Science, Rural Development Administration) ;
  • Kang, In Jeong (Crop Cultivation and Environment Research Division, National Institute of Crop Science, Rural Development Administration) ;
  • Shim, Hyeong-Kwon (Crop Cultivation and Environment Research Division, National Institute of Crop Science, Rural Development Administration) ;
  • An, Chi Jung (Yeoju-si Agricultural Technology Center) ;
  • Kim, Joo Yeon (Crop Cultivation and Environment Research Division, National Institute of Crop Science, Rural Development Administration) ;
  • Yang, Jung-Wook (Crop Cultivation and Environment Research Division, National Institute of Crop Science, Rural Development Administration)
  • Received : 2021.08.14
  • Accepted : 2021.12.29
  • Published : 2022.02.01
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Abstract

Rice blast is the most destructive disease threatening stable rice production in rice-growing areas. Cultivation of disease-resistant rice cultivars is the most effective way to control rice blast disease. However, the rice blast resistance is easy to breakdown within years by blast fungus that continually changes to adapt to new cultivars. Therefore, it is important to continuously monitor the incidence of rice blast disease and race differentiation of rice blast fungus in fields. In 2020, a severe rice blast disease occurred nationwide in Korea. We evaluated the incidence of rice blast disease in Yeoju and compared the weather conditions at the periods of rice blast disease in 2019 and 2020. We investigated the races and avirulence genes of rice blast isolates in Yeoju to identify race diversity and genetic characteristics of the isolates. This study will provide empirical support for rice blast control and the breeding of blast-resistant rice cultivars.

Keywords

Acknowledgement

This study was supported by the project PJ013521022020 of National Institute of Crop Science, Rural Development Administration, Republic of Korea.

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