The concerned study aimed to evaluate the biological control of root rot disease of common beans (Phaseolus vulgaris L.), which causes considerable yield losses, using endophytic bacteria isolated from halo-xerophytic plants. The vegetative experiment revealed P. vulgaris plants have the potential to control virulence of the fungus Rhizoctonia solani, which causes root rot, based on consortia of endophytic bacteria and chemicals. The severity levels of plant disease, as determined, employed the damage scale method. Using the damaged background + conditional microbial preparation + Topaz (10 μg/ml), very light damage (1 ≤ 1; 10%) was evident in the common bean. By treating P. vulgaris with conditional microbial preparation, the yield gained a significant increase, and the phytopathogen damage level decreased. The study proved the potential of microbial preparations based on endophytic bacterial strains for inhibiting the effects of R. solani in common beans. These results can become initial data that could serve to expand the diversity of agents used against diseases in crop production.
Bacteria, common bean (P. vulgaris L.), damage, endophyte, Rhizoctonia solani, seeds, severity levels, Topaz
The biological control of R. solani in common beans (P. vulgaris L.) using bacterial strains isolated from halo-xerophytes has provided a unique solution. The results could help in the development of strategies for biological control and reduce the use of chemicals in crop production.