The effect of phenolics in agarwood formation of Gyrinops versteegii tree induced by Fusarium sp.

Abstract

Gyrinops versteegii is one of the agarwood-producing species from the Thymelaeaceae family. Agarwood is formed tend to the defense mechanism because of pathogen attack. The objective of this research was to investigate the effect of the total phenolic content to the agarwood formation in G.versteegii trees induced by Fusarium sp. The research was carried out in agarwood plantation 14-year-old located at Sragen and Karanganyar Regency. The sampling technique was purposive sampling by selecting the G.verteegii tree which has a stem diameter of greater than or equal with 20 cm (= 20 cm). The number of tree sample of each location was 9 trees, so the total of tree sample was 18 trees. The wood sample for phenol analysis was carried out with leather lunch 10mm at a diameter of breast-high (DBH=1.3m), those taking 3 samples per tree. Total phenol content was done by spectrophotometry. The result of this research is the total phenolic content of G.versteegii tree growing in Sragen is 0.059 % w / w lower than in Karanganyar which is 0.077 % w / w. Due to the lower of the total phenolics content, the agarwood trees growing in Karanganyar more susceptible and can produce a better quality of agarwood.