This research aimed to determine the effect of the role water immersion of Piper betle leaf. Protect Paraserianthes falcataria of seed quality and know the best dosage Piper betle leaf soaking in Paraserianthes falcataria maintain quality seed. The research method used in completely randomized design (CRD) with 4 treatments and 4 replications. The treatment consisted of: S0=Paraserianthes falca…