Abstract
An experiment was performed to study the impact of Mycorrhizal fungus (Glomus mosseae) and Azotobacter chroococcum on the growth parameters of the common bean (Phaseolus vulgaris L.) plant. The experimental methodology employed in this study was a factorial design, specifically a randomized complete block design (RCBD), with three replications. The treatments consisted of four different biological fertilizers, namely: none-inoculated, inoculated with arbuscular mycorrhizal fungi (AMF), inoculated with Azotobacter, and a mixture of both (AMF+Azotobacter). The use of biofertilizers, whether used singly or in combination, resulted in improved germination rates, plant height, number of root nodes, as well as fresh and dry weights of both shoots and roots particularly (AMF + Azoto) treatment (96.33±1.52, 37.33±2.08, 50.00±2.00, 8.83±0.40, 3.90±0.20, 6.53±0.23, 2.30±0.20) respectively, compared to plants that were not infected. In addition, the dual treatment of the fungus AMF and the bacteria A. chroococcum was recorded a maximum mycorrhizal infection percentage of 90% compared with the control which recorded 20%. The results of this study suggest the existence of an additive or a synergistic relationship between Glomus mosseae and A.chroococcum.
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