Research in Plant Disease 2012;18(4):324-330.
Published online December 30, 2012.
벼 품종 및 지역에 따른 도열병균 레이스 분리와 도열병 발병정도와의 관계
심홍식 ( Hong Sik Shim ) , 예완해 ( Wan Hae Yeh ) , 유병주 ( Boung Joo Yoo ) , 명인식 ( Inn Shik Myung ) , 홍성기 ( Sung Kee Hong ) , 이승돈 ( Seung Don Lee )
Pathogenic Races of Pyricularia oryzae Isolated from Various Rice Cultivars on the Blast Nursery and Paddy Field in Different Locations
Hongsik Shim*, Wan-Hae Yeh, Boung-Joo Yoo, Inn-Shik Myung, Sung-Kee Hong and Seungdon Lee1
Crop Protection Division, National Academy of Agricultural Science, Rural Development Administration, Suwon 441-707, Korea
1Coordination Division, Research Policy Bureau, Rural Development Administration, Suwon 441-707, Korea
Received: August 27, 2012   Revised: November 30, 2012   Accepted: December 07, 2012
This study was conducted to investigate the association of race distribution of Pyricularia oryzae with rice cultivar and location. Races present in a given location were different in cultivars, and the races from a given cultivars were different by location. For precise study of race distribution, it needs to identify isolates by considering cultivation ratio and collection area. There are great differences between the resistant degree in the upland blast nursery and on the resistant degree of the leaf blast and panical blast in the paddy field. The number of virulent races in a rice cultivar was not related with the resistant degree in blast nursery or in paddy field.
Key Words: Pyricularia oryzae, Race, Rice blast
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