Screening Digitaria eriantha cv. Suvernola Endophytic Bacteria for Maize Growth Promotion

The search for sustainable agriculture has increased interest in using endophytic bacteria to reduce fertilizer use and increase stress resilience. Stress-adapted plants are a potential source of these bacteria. Some species have not yet been evaluated this, such as pangolão grass, from which we considered plant growth promoters. Bacteria the root, colm, leaves, rhizospheric soil were isolated, 132 strains their vitro biological nitrogen fixation, IAA siderophores production, phosphate solubilization. Each mechanism was also assessed under low N availability, water stress, low-solubility Fe P sources maize greenhouse experiments. All synthesized IAA; 63 grew on N-free media, 114 siderophores, 46 solubilized P, while 19 presented all four mechanisms. Overall, had better performance than commercial inoculant Still, responses good predictors vivo effects, indicates that former should be used strain selection, since this could lead testing with promotion potential. Their heterologous reinforces stress-adapted inoculants.