Antagonostic microorganisms and medium moisture as possible sources of variation in common bunt (Tilletia tritici) incidence
1999
Benada, J. | Pospisil, A. (Zemedelsky Vyzkumny Ustav, Kromeriz (Czech Republic))
Antagonistic soil microorganisms decreased the germination of Tilletia tritici teliospores in dependence on the concentration of three formulations (Polyversum, Supresivit and Ibefungin) used and added in or on water agar. A higher content of water in the agar also decreased the germination, and water drops on the agar surface inhibited it entirely. The presence and concentration of antagonistic microorganisms and soil moisture can vary in the soil and it is supposed that this may cause the variation in bunt incidence in field. This variation has to be taken into consideration in particular in variety trials. Polyversum decreased the incidence of bunt in a field trial (efficacy 60 %).
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