Fusarium spp. as an important problem in cereal production in Estonia
Loiveke, H.(Estonian Research Inst. of Agriculture, Harjumaa (Estonia))E-mail:[email protected]
An overview of investigations on occurrence and hazardousness of Fusarium spp. on Estonian cereal grain and in spoiled grain feeds, and the toxicity of Fusarium isolates, was carried out from the year 1973 up to present. The problems of pure production without Fusarium spp. and fusariotoxins are discussed. Cereal grain samples from seed cultivation farms and from disease control trials were analysed by the moist chamber method. Grain feed samples were investigated by the pour plate method (Harrigan and McCance, 1976). The species and number of Fusarium were defined on the basis of the first and second dilution on Nash and Snyder selective medium. The identification of Fusarium spp. has been made according to Bilai (1955, 1977) and Gerlach and Nirenberg (1982). The toxicity of Fusarium isolates was tested on the basis of the growth inhibition zone of Bacillus stearothermophilus (Watson and Lindsay, 1982).
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