Utilization The Fungus of Mycorrhriza to Control Bean Root Rot Caused by Pathogenic Fungi Rhizoctonia Solani

Abstract

The study was conducted for the purpose of knowing the effect of the mycorrhizal fungus on controlling the root rot disease caused by the pathogenic fungus Rhizoctonia solani, the field experiment included four treatments and each treatment had five replicates, the treatments were as follows (Control, Mycorrhiza, Rhizoctonia, Mycorrhiza, Rhizoctonia), where the percentage of infection with the disease was (0.00, 0.00, 96.91, 63.58), respectively. while the growth indicators were studied, including plant height (106.24 , 112.58, 81.64 , 101,72 ) respectively , the average number of plant leaves for the above treatment , respectively (24.98 , 27.14 , 17.50 , 26.16 ) and the root length (23.40 , 30.32 , 10.32 , 28.42 ) , root wet weight ( 4.17 , 6.96 , 0.98 , 5.13 ) the mycorrhizal fungus treatment was superior in all studied indicators, followed by the treatment of mycorrhizal + rhizoctonia, while the pathogen treatment recorded the lowest percentage in all indicators , There were significant differences at a significant level of 0.05% between the treatments