Jurnal Penelitian Hasil Hutan

93-102

Authors: Efrida Basri & Imam Wahyudi

Jati PlusPerhutani (JPP)is afast growing teak a:ectona grand.is Lf) species that has been developed since 20years ago by Research and Development Center of Perum Perhutani through a serial program of tree improvement. At the same age, stem diameter of this superior teak tree is largerthan that of the conventional teak. Houever, wood behavior during kiln dryinghas not been muchstudied Thisstucjy examineddryingproperly and quality of 5, 7 and 9year old of JPP woods in relation to their wood basicproperties. Results showed that basicproperties of]PP wood are inferiorcompared than those of conventional teak wood Dryingproperty and quality are effected significantly by cell wall thickness,juvenile wood portion, heart wood-sapwood percentage,MFA, initial moisture content, wood density and specificgravity,as well asgrowth stresses. Compared to those of conventional teak wood with similar in diameter (older tree), drying quality of JPP wood until 9 year-old was still poor and unfavorable. Based on the drying quality and specific condition of the JPP wood, the minimum•maximum drying temperature mas around of 30-40°C far 5year-old, 40-50°C far 7year-old and 40-60°C far 9year-old.

141-150

Authors: Totok K. Waluyo

Dragon's blood is a resin secretedfrom thefruit of dragon's blood rattan. The resin originatedfrom Indonesia and known in the International market is indigenousfrom the so-called Daemonorops draco Blume. rattan speaes.Speaes exploration in the Sarolangun regenry (Iambi province) had found 5 rattan species that are able toproduce dragon's blood. Those five species are jernang burung (Daemonorops didymophylla Becc.); jernang umbut (Daemonorops melanochaetes Blume.);jernang rambai (Daemonorops draco Blume.);jernang kalamuai (Daemonorops longipes Mart.), and jernang kepala puyuh (Daemonorops sp.). Pbysicocbe mical propertiesof dragon's blood iuere done based on Indonesian National Standard (SNI 16 71:2010 ), and identijication of its compounds proceeded using the gas chromatograply-massspectrophotometer. The lowes:yields of dragon's blood wasfrom D. didymophylla (1.20%),1vhilethosefromother rattan species uere quite high (11-12% ). Moisture content of five rattan species ranged about 3-5%,immpurities 4-6%, ash content 0-2%, and meltingpoint 8 5-10 5°C. Dracohordin compound that serve as bio-indicator for dragon's bloodispresence in all thosefive species. Further exploration need to be done to obtain rattan species with high potentialdragon's blood resinproductivity.

170-178

Authors: Imas Aisyah, Nuryati Juli & Gustan Pari

The liquid smoke obtained from the destructive distillation on coconut shell at 0,25-6,0% consentration-range could in vitro to inhibit the colotry gro1vth offungi, i.e. Colletotrichum gloeosporoicles and Fusarium oxysporum species as much as consecutively 5,59-97,85% and 6,06-94,97%. At 7% liquid-smoke consentration the inhibition reached 100% (far both spescies). The liquid smoke obtained from 400° C distillation temperature could inhibit fungi gr01vth the most ejfectivelly, i.e. 16,26% for Colletotrichum gloeosporoicles and 15.06% for Fusarium oxysporum. In vivo, the liquid smoke at0,5%,1%,and 5% consentration-was effective to repard (up to 100%) the antracnose disease as wellasfusarium-wilt that attacked the host cucumber plants. However, the liquid-smoke use at 5% was not recomended due to inflicting necrosis on cucumber leaves.