The cajuputi tree (Melaleuca cajuputi P.) is one of the species native to peatl soil that can grow and adapt to extreme environments, such as acidic soil, nutrient-poor soil, and waterlogged soil. The rhizosphere of cajuputi trees harbors microorganisms such as rhizobacteria that can produce the growth hormone indole acetic acid (IAA). Rhizosphere soil samples were collected from three individu…