فعالية مستخلص الكمون و الدارسين في مكافحة فطر Rhizoctonia solani المسبب لموت بادرات القطن

الملخص EN

This study was carried out to evaluate the antifungal activity of ethanol extract for Cumin( Cuminum cyminum) and Cinnamon( Cynnamomum zeylanicum) against Rhizoctonia solani that caused cotton seedling damping-off on PDA and under greenhouse condition.The toxic concentration,0, 5, 10, 15, 20 mg/ml of Cumin and Cinnamon extract were tested in growth fungus pathogen.

The inhibition percentage of fungal growth was found to be 0, 44, 54, 66, 78% respectively with the concentration of Cumin extract and 0, 50, 63, 67, 70% respectively with the concentration of Cinnamon extract.

However, in the greenhouse found that seed treatment with Cumin and Cinnamon ethanol extracts at 20mg/ml was led to significant reduction in the percentage of seedling damping off pre and post emeraence compared with control treatment.

The percentage of damping off pre and post emeraence were reached 8.3, 12.5% respectively with Cinnamon ethanol extract , while were reached 16.7, 20.8% respectively with Cumin ethanol extracts , compared with control treatment with the presence of pathogen fungus where the percentage of seedling damping off pre and post emeraence were reached 40, 58.3% respectively, which indicate that the active compound of Cumin and Cinnamon extracts in controling this pathogen.