Oknasari, LeniFatonah, SitiIriani, Dyah2013-06-172013-06-172013-06-17Rangga Dwijunanda Putrahttp://repository.unri.ac.id:80/handle/123456789/3708The Seed of nyamplung (Calophyllum inophyllum L.) has long germination time due to the physical and mechanical dormancy in fruit skin, therefore a pretreatment is necessary before seed planting. This study aimed to determine the effect of scarification and concentration of young coconut water on seed germination of nyamplung. The study had been carried out in the green house, Department of Biology, Faculty of Mathematics and Natural Sciences, University of Riau, from August to November 2012. The design used was factorial Randomized Block Design (RBD) with two factors. The first factor was scarification with two treatments i.e. without scarification (S0) and with cracking scarification (S1). The second factor was without immersion (K0) and the concentration of young coconut water with five treatments i.e. immersion in water 0% (K1), 25% (K2), 50% (K3), 75% (K4), 100% (K5). Data were analyzed using Analysis of variace (ANOVA), if there was a significant effect then followed by Duncan's Multiple Range Test (DMRT) at the level of 5%. Scarification treatment increases the germination, while the coconut water treatment does not increase the germination and also there is no interaction between treatments scarification and coconut water concentration on the germination. The results showed that scarification treatments gave better results as follow: 44th emergence day of sprout; 100% percentage of germination; 0.10 germination rate.otherCoconut waterconcentrationnyamplungscarificationOther