Growth response of patchouli (Pogostemon cablin Benth.) with coconut husk composting and coconut soaking concentration.

Abstract

Along with the increasing demand for patchouli oil, it is necessary to endeavor a sustainable production system that can guarantee the demand and quality of patchouli oil that meets export standards. This research aim was to determine the patchouli growth response on the application of coconut fiber compost and the coconut water concentrate. This research was carried out in the Medan Sampali Subdistrict community area, Medan, which is ± 32 meters above sea level, from August to October 2017. This research used a randomized block design with 2 factors and 3 replications. The first factor was coconut fiber compost (0; 250; 500; and 750 g / polybag) and the second factor was the coconut water concentrate (0%; 25%; 50%; 75% and 100%) and further testing on randomized block design at the level of α = 5%. The research results showed that the treatment of coconut fiber compost had a significant effect on the number of shoots, shoot length, shoot wet weight, root wet weight, root volume, shoot dry weight, and root dry weight. The treatment of coconut water concentrate immersion significantly affected the percentage of live cuttings, the number of shoots, shoot wet weight, and root wet weight. The interaction between the two treatments did not significantly affect the number of shoots, shoot wet weight, and root wet weight. With the best dose of coconut fiber compost of 750 g / polybag and 50% coconut water concentrate.