TEKNIK PENYADAPAN PINUS UNTUK PENINGKATAN PRODUKSI MELALUI STIMULAN HAYATI

Abstract

The increased demand of pine resin both for domestic and overseas markets has necessitated efforts to enhance pine-sap
production. The use of strong acid-based conventional stimulants has been long employed by Perum Perhutani, but
questions arise regarding the environment effect as well as growth survival of the tapped pine trees. Consequently, the use of
biostimulant deserves thorough consideration, since not only will assure friendly-environmental effects but also securing the
sustainability of the pine trees. An experiment was conducted to look into the effect of using biostimulants on the
production of sap (exudates) from the tapped pine trees. Three tapping techniques were employed, i.e. mujitech, boring and
kedukul. The biostimulant consisted of three kinds (lengkuas, kencur, and red onion), each with three concentration levels
(50%, 75%, and 100%).
It turned out different tapping techniques seemed not affecting the pine-sap production, nor did the effect of biostimulant
concentrations (50-100%). However, different kinds of biostimulants did so, whereby lengkuas afforded the sap-yield
increase the highest (268%) compared to the control (without biostimulants), followed in order by kencur (206%) and red
onion (180%). Use of the second and third caused no significant difference. Economically, the use of
biostimulant at 50% concetration was effective enough. Further attempts are neseccary to find other alternative
biostimulants.