Analysis of ethylene production by Gas chromatography found that M. hiemalis. strain 3137 and P. syringae strain 901 are the most ethylene production is 5.975 ppm / L and11.186 ppm /L at 7.30 hours respectively. (Table 1 and Figure 2) However, at the old of cultivation increased found that both strains to produce ethylene gas decreased (Table 1 and images 2) because microbes are growing rapidly and can produce ethylene gas in the early time. when M. hiemalis was incubated in sealed flasks with various initial concentrations of oxygen, both growth and ethylene production per unit weight of organisims were promoted by oxygen