Banja Luka : University of Banja Luka, Faculty of Agriculture
Abstract
There is no List of permitted plant protection products that can be used in medicinal
and aromatic plant production. The effects of two biofungicides, from the List of
permitted plant protection products used in organic production, on the seed quality
and health of medicinal plant Foeniculum vulgare L. cv. 'Vojvođanski' were
examined. The aim was to find products of plant permitted in organic production
with beneficial effect on fennel seeds. Seed germination testing was done according
to the Rule book on seed quality control, while the seed health was examined by the
filter paper method. The treatment of the seed was done with solutions of
biofungicides 'Extrasol F' and 'Polyversum'. The solutions of 'Extrasol F' were
applied in concentrations of 0.20 ml/kg and 0.40 ml/kg, while the solutions of
'Polyversum' were applied in concentrations of 0.50 g/kg and 1 g/kg. Distilled water
solely was used in the control. Seed examinations were done after 14 days. The
results showed that biofungicides in the recommended concentrations of 0.20 ml/kg
and 0.50 g/kg, had an effect of 73.3% and 64.7%, respectively, on germination, while
in the concentrations of 0.40 ml/kg and 1 g/kg, the seed germination was lower by
5.7% and 1.7% than the control. Based on the symptoms of necrosis, dark mycelia
and abundant sporulation observed on the seed surface, the fungus identified was
Alternaria sp
