Activity of ethanol extracts of Rhus Coriaria and Acer Negundo in control some seed wheat fungi

Abstract

This investigation carried out in 2021, at department of plant protection and Renewable Natural Resources and Environment -Damascus Unv., To determine the antifungal activity of ethanol extracts of Rhus coriaria and Acer negundo, in inhibition mycelium growth of fungi Aspergillus niger, A. flavus and Fusarium sp. isolation from wheat seed and compared with Difenoconazole fungicide, on PDA in the laboratory. The result showed that ethanol extracts of studied species gave significant inhibition to growth fungi compared with the control. The ethanol extracts of the Rhus coriaria fruits gave the superior effect inhibition to A. flavus where gave 100% inhibition at 15 µL/ml medium.  Followed by the ethanol extracts of Rhus coriaria leaves While, While, ethanol extracts of the Acer negundo leaves gave the superior inhibition to growth study fungi compared with ethanol extracts of fruits. Where gave 100 % inhibition to A. flavus at 20 µL/ml medium. On the other hand, effect of the ethanol extracts increased with increase of concentrate. The fungicides Difenoconazole gave completely inhibition to growth study fungi at 120 ppm.

However, A. flavus was the most sensitive fungi, followed by A. niger while, Fusarium sp. was the most resistant to the tested ethanol extracts. Therefore, ethanol extracts from Rhus coriaria and Acer negundo could be used to integrated management control the fungal A. flavus, A. niger and Fusarium sp.