Perkecambahan Benih Gmelina Arborea Roxb Pada Berbagai Suhu Perendaman Dan Media Perkecambahan

Abstract
Gmelina arborea Roxb seed takes a long time to germinate. This is caused by the hard seed coat.
Therefore, it is necessary to carry out scarification or pre-treatment techniques to accelerate
germination of uniform seeds and germination media. This research was conducted from September
to October 2022 at BPDAS Palu–Poso Permanent Nursery, Palu. This study used a completely
randomized design with factorial patterns consisting of 2 factors. The first factor is the temperature of
the seed immersion, which consists of S0 = seeds that were not treated, S1 = seeds soaked in water
with an initial temperature of 75oC for 24 hours, S2 = seeds soaked in water with an initial
temperature of 50oC for 24 hours and S3 = seeds soaked in water with an initial temperature 25O C
for 24 hours and the second factor was the germination media which consisted of M0 = Soil, M1 =
Soil + Rice Husk (2:1) and M2 = Soil + Sand (2:1). There were 12 treatment combinations and the
treatment was repeated 3 times and each replication consisted of 10 seeds, so that the seeds needed
as much as 360 seeds. The results showed that the best immersion temperature was water with an
initial temperature of 75oC and the best germination media was soil+sand (2:1). The interaction
between temperature and germination media had no significant effect on germination percentage,
germination rate, root length and wet weight of seeds Gmelina arborea Roxb.
Keywords : Dormancy, germination, gmelina arborea Roxb, scarification