The purpose of this study was to determine the interaction of plasma radiation on the growth rate and the number of leaves in several species of mangrove. The species of mangrove, which included Rhizophora stylosa, Rhizophora mucronata, Creriops tagal, and Bruguera sp. The method used was a factorial complete randomized design with 12 treatments and 3 replications. The first factor was the duration of plasma radiation, with values of 0 minutes, 30 minutes and 60 minutes. The second factor was the species of mangrove, which included Rhizopora stylosa, Rhizopora mucronata, Creriops tagal, and Bruguera sp. The parameters observed were growth rate and the number of leaves. The results showed that plasma radiation was able to increase the growth rate in R. mucronata species but did not affect the number of leaves. Plasma radiation for 60 minutes met the nitrogen requirements of the plants. This study concluded that corona incandescent plasma radiation can increase the mangrove growth rate, especially in R. mucronata species. Manuscript profile