摘要：Antifungal substances of plant origin could be used as an inhibitor to control fungal
seed diseases growth and development. The purpose of this study was to evaluate the
influence of alcoholic and aqueous extracts of few medicinal plants (Fennel,
Cichorium, Asafoetida, Echinacea, Balangu (Lady’s mantle and Olender) on growth
and development of Alternaria alternata fungi. The experimental treatments were
arranged as factorial and the data were analyzed based on a completely randomized
design with three replications. The effect of seed and plant extracts, plant type
(plant), and their interactions were significant on the fungal growth and
development. The strong antifungal properties of aqueous and alcoholic extracts of
balangu and oleander showed a broad-spectrum natural antifungal resistance in those
plants. However, the results indicated a high resistance for A. alternata against the
aqueous extract of fennel. This study concluded a high potential for the alcoholic
extract of balangu and oleander (100% inhibition) in the biological control of the A.
alternata fungus.
关键词：Alternaria; biological seed treatment; extract; medicinal plant; seed
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