الفعالية التشادية لمستخلص الكحول الاثيلي لأوراق نبات فرشة البطل Callislemon rugulosus في فطر Aspergillus niger

Abstract

Abstract:-The antifungal properties of Ethanolic extract for leaves of Callistemon rugulosis was carried out on selective phytopathogen fungi Aspergillus niger which isolated from Allium cepa . Determination of activity was done on mycelial inhibition and spore germination by different concentrations of this extract (0.5 , 1.25 , 2.5 and 5 mg/ml ) maximum inhibition ( 78.8% ) was obtained by concentration ( 5 mg / ml ) compared with control treatment have 0 % and the less percentage of the spore germination was ( 13.2 % ) at conc. ( 5 mg / ml ) of the extract compared with control treatment the spores reached maximum germination ( 78.2 % ) . Itُs evidence from the results there is direct correlation when concentration of extract increased the percentage of mycellial inhibition increase but there is reverse correlation when conc. of extract increased the percentage of spore germination decreased .