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Fungi of the genus Fusarium infect cereal crops during the growing season and cause head blight (FHB). Their secondary metabolites (mycotoxins) contaminate grain. Mycotoxins are not degraded during standard food and feed processing operations or in vivo digestion, and are dangerous to human health. In a three-year field experiment we evaluated the effects of biological control agents and a plant biostimulator...
The effectiveness of bacteria of the genera Sphingomonas and Bacillus, and yeasts of the genera Cryptococcus, Rhodotorula, and Saccharomyces as biological control agents against pathogens colonizing winter wheat, was tested in laboratory conditions. All of the tested yeast isolates had an inhibitory effect on the development of F. sporotrichioides colonies. Under the same conditions, the Sphingomonas...
A greenhouse experiment was carried out to determine the effect of biotechnological and fungicide treatments on the colonization of winter wheat kernels by epiphytic and endophytic Pseudomonas and Azotobacter bacteria, filamentous, and yeast-like fungi. Microbiological analyses were performed using two techniques that involved placing kernels on PDA medium, and washing kernels to remove the microbes...
In a field experiment the susceptibility of yeast-like fungi to selected fungicides with the active ingredients (a.i.) propiconazole, epoxyconazole, kresoxim-methyl, fenpropimorph, carbendazim, prochloraz and flusilazole, was analyzed. The direct effect of the fungicides on the colonies of yeast-like fungi was determined based on antibiograms – the diffusion method. The survival rate of the isolates...
Studies on sensitivity of microorganisms colonizing the leaves of winter wheat cultivar Almari to Amistar 250SC, Bravo 500SC fungicides and Bion 50WG plant resistance stimulator were performed in 2000-01. The studied fungicides decreased growth of hyphae fungi colonizing the leaves of winter wheat cultivated in pots, especially 24 hours after treatment, compared to control. Created free ecological...
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