บทคัดย่องานวิจัย

Effects of field application of tebuconazole on yield, yield components and the mycotoxin content of Fusarium-infected wheat grain.

HOMDORK, S., FEHRMANN, H. and BECK, R.

Journal of Phytopathology-Phytopathologische Zeitschrift 148:1-6.

2000

บทคัดย่อ

Effects of field application of tebuconazole on yield, yield components and the mycotoxin content of Fusarium-infected wheat grain.

Winter wheat cultivar basalt was artificially inoculated with Fusarium culmorum at the end of anthesis and treated with the systemic fungicide tebuconazole (Folicur®) a few days before and/or after inoculation. Artificial Fusarium inoculation lowered yield significantly by 24.2 – 45 %. Any fungicide treatment saved yield, thousand grain weight and kermel numbers per head. Preinfection application of tecuconazole was superior to application carried out postinfection. The fungicide controlled DON synthesis in the field to a considerable extent and enabled good control of Fusarium head blight, glume blotch and the percentage of Fusarium infected kernels. The levels of Fusarium  kernel infection after harvest clearly reflected the DON content of wheat grain.