벼 붉은곰팡이병 감염에 대한 기상조건의 영향과 장려품종의 반응 (Weather Effect and Response of Promoted Rice Varieties on Fusarium Infection in Paddy Field)

서지정보

· 발행기관 : 한국식물병리학회
· 수록지 정보 : 식물병 연구 / 24권 / 4호 / 313 ~ 320페이지
· 저자명 : 이데레사, 장자영, 김점순, 류재기

초록

Fusarium infection rate of the paddy rice grain after harvest seemed to be influenced by the average temperature from late July (before heading) to the end of September (during ripening). In case of 2010 and 2013 in which average temperature of the same period was similar, Fusarium infection was related to cumulative precipitation, cumulative precipitation days, and precipitation durations over two days. The distribution ratio of Fusarium species complex isolated from paddy rice grains after harvest was 57% in 2010 and 45% in 2013 for Fusarium graminearum species complex (FGSC), 35% and 50% for Fusarium incarnatum-equiseti species complex, and 8% and 5% for Fusarium fujikuroi species complex (FFSC). The distribution ratios of FGSC and FFSC were higher in 2010 than 2013. Among the total 26 promoted rice varieties, the ‘Mihyang’ showed resistant response against the natural infection with Fusarium species belonging to FGSC and the varieties of ‘Nampyeong’, ‘Hi-ami’and ‘Younghojinmi’ showed resistant response against the natural infection with overall Fusarium pathogens. Majority of the promoted rice varieties could not be classified for resistance or susceptibility.
These results are valuable as basic data to determine the resistance and susceptibility of rice variety against Fusarium spp. infection in the field.

영어초록

Fusarium infection rate of the paddy rice grain after harvest seemed to be influenced by the average temperature from late July (before heading) to the end of September (during ripening). In case of 2010 and 2013 in which average temperature of the same period was similar, Fusarium infection was related to cumulative precipitation, cumulative precipitation days, and precipitation durations over two days. The distribution ratio of Fusarium species complex isolated from paddy rice grains after harvest was 57% in 2010 and 45% in 2013 for Fusarium graminearum species complex (FGSC), 35% and 50% for Fusarium incarnatum-equiseti species complex, and 8% and 5% for Fusarium fujikuroi species complex (FFSC). The distribution ratios of FGSC and FFSC were higher in 2010 than 2013. Among the total 26 promoted rice varieties, the ‘Mihyang’ showed resistant response against the natural infection with Fusarium species belonging to FGSC and the varieties of ‘Nampyeong’, ‘Hi-ami’and ‘Younghojinmi’ showed resistant response against the natural infection with overall Fusarium pathogens. Majority of the promoted rice varieties could not be classified for resistance or susceptibility.
These results are valuable as basic data to determine the resistance and susceptibility of rice variety against Fusarium spp. infection in the field.

참고자료

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