Poster: Biology & Disease Mgmt: Postharvest Pathology & Mycotoxins
Correlation between the disease incidence of Fusarium head blight and the mycotoxin content of winter cereal crops in Korea
H. SHIM (1), H. Shim (2), I. Kang (2), D. Shin (2), J. Roh (2), S. Heu (2) (1) National Institute of Crop Science, South Korea; (2) National Insitute of Crop Science, South Korea
In 2015, diseased grain rates of Fusarium Head Blight of winter cereal crops in southern region of Korea were 9.5% at an average and the incidence is slightly higher than compared to the previous year’s. Diseased grain rates of Fusarium Head Blight on barley were 18.8% in Jeollanamdo province and that was the highest in Boseonggun with 26.4%. Diseased grain rates of Fusarium Head Blight on wheat was 19.2% in Jeollanamdo province and 12.9% in Jeollabukdo province. It showed the higher incidence in Haenamgun, Goseonggun especially with 35%. Mycotoxin content was investigated from the seed samples which have been collected by each region. Deoxynivalenol was 13.3 mg/kg in Sacheon city and 16.3 mg/kg in Goseonggun which was the higher disease incidence than the other regions. Zearalenone contents of the seed samples which have been collected in Sacheon city, Buangun, and Gangjingun as the highest incidence region were 1.15 mg/kg, 1.11 mg/kg, 1.62 mg/kg respectively. Fumonisin contents of the seed samples which have been collected in Sacheon city, Boseonggun, and Haenamgun were 2.54 mg/kg, 2.19 mg/kg, 2.64 mg/kg respectively. Correlation coefficient between the diseased grain rate of Fusarium Head Blight and the Zearalenone content was 0.81.