Effect of some botanical fungicide and chemicals as forest seed dressing on the quality of the seeds

Abstract

An experiment was conducted to study the antifungal activity of different concentrations aqueous extracts from three local plants, Hypericum triquetrifolium, Salix alba, Salvia rosmarinus and also different concentrations of fungicide (Captan) and Salicylic acid were evaluated for their efficacy as seed dressing on Catalpa and Albizia that seeds were soaked separately for 30 mints in various concentrations of aqueous extract and fungicide. Forest seeds were grown in pots which were inoculated by Sclerotinia sclerotiorum and Fusarium oxysporum that one petri plate/ pot in 2018 in a greenhouse at the University of Sulaimani–College of Agricultural Sciences Engineering. The results showed that seed germination percentage, shoot length, root length and number of leaves was significantly (p≤0.05) increased with both the treatments. Captan (0.5%) was more effective in comparison with Captan (0.3%) and seed germination, shoot length, root length and number of leaves was gradually increased with increase of the doses of fungicides. It can be suggested that fungicide Captan have antifungal effect and can be used to treat seed against seed borne pathogens of forest, increase seed germination and shoot length, root length and number of leaves.