| dc.description.abstract | Jaranan plant (Lannea coromandelica) grows massively in the buffer
zone and utilization zone of Baluran National Park. This plant produces gum in
branches and stems. Local people extract gum by cutting down stems as medicine
for diarrhea, typhus, and eye infections treatment. The study aims to test gum
extraction techniques without cutting down stems that do not cause serious damage
to the plants. The research was conducted in March-June 2020 in Sidomulyo,
Sumberwaru Village, Banyuputih Situbondo. The research method is carried out
by drilling rods combined with the administration of ethephon as a Gum Inducer
Solution (GIS). The design of the study is factorial (2x2) with GIS concentration
and rod circumference factors. The plant sample used a population sample of 62
trees. The gum retrieval technique is done by drilling rods, then on each borehole
inserted 3ml GIS. Gum collection is done every 7 days for 3 weeks. Data analysis
uses Two Way ANOVA and GLM-Repeated Measures (SPSS 17). The results
showed no effect on the size of the trunk circumference on gum production (p
= 0.974 > 0.05) while GIS concentrations of 1.5% produced an average total
gum of 33.2 gr/tree, which differed significantly (p = 0.002 < 0.05) with a GIS
concentration of 1% (21.24 gr/tree). There is no interaction between the size of
the bar circumference and the GIS (p = 0.133 > 0.05). This study concludes that
gum production is not influenced by the size of the circumference of the rod but
is influenced by gis concentration. | en_US |
