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The issue of microscopic fungi in wheat
HORMANDLOVÁ, Jana
The aim of my thesis was to monitor the natural occurrence of mycological pathogens, especially funghi of genus Fusarium in ecologically and conventionally grown systems. There was carried out small-parcelled experiments at two standpoints (Lukavec and České Budějovice) in the years 2006/2007, 2007/2008 and 2008/2009. The funghi of genus Fisarium attack the stalk, the leaves even the ear. If the ear is attacked, the production is decreased. The epidemical occurrence of this disease is supported by a large amount of cereals in the cropping pattern, nitrogen over-fertilization, thick grassland and bad agro technological proceeding, especially imperfectly nested plant remains. The genus Fisarium is very extensive in the nature. It often parasites at plants or live saprophyticly at production, post-production remains of plants in soil or at its surface. The mycelium furcates and forms cottonwoolen pinkish, red or yellowish film. Their malignity lies with the production of poisonous mycotoxins, which form as their secondary metabolites. They can cause the health problems at people and farm animals.
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