Microorganisms can produce eco-friendly compounds such as gibberellic acid (GA3), naturally produced by fungi to enhance plant growth and improve post-harvest product quality. This study aims to determine the optimum conditions of carbon sources, pH, incubation time and agitation of Aspergillus sp.II RTA in producing gibberellic acid. Aspergillus sp.II RTA is cultured in the Czapek Dox Broth (C…