The development of modern industries has demanded ever-increasing usage requirements for wood products. The use of wood will be more effective and efficient if the properties of wood are known beforehand. This study aims to determine the anatomical diversity of sengon wood and its possible use as a raw material for furniture. This study used a randomized block design with Tukey's follow-up test. The factor used consisted of the radial direction of wood (wood near the skin and wood near the heart). Parameters observed were the proportion of fiber cells (%), the proportion of vessel cells (%), the proportion of parenchyma cells (%), and the proportion of radius cells (%). The results showed that the wood near the skin and near the heart of sengon had variations in the proportion of fiber cells, the proportion of vessel cells, the proportion of parenchyma cells and the proportion of radius cells. The average value of the anatomical diversity of sengon wood in the radial direction is the proportion of fiber cells 49.02 - 50.24 %, the proportion of vessel cells 23.22 - 24.23 %, the proportion of parenchyma cells 13.47 - 14.57 %, the proportion of finger cells finger 11.53 - 13.39 % and . Sengon wood can be used as furniture material for light buildings or for artificial boards because it has a high proportion of fibers.

The market needs will be fragrant citronella oil increases, but it is not worth the production and quality of fragrant Lemongrass oil is produced. The purpose of this study, that is, to figure out the best combination of sources of raw materials and factors of the size of the craftmanship the leaves against the yield and quality of fragrant citronella oil. Research design used was Random Complete Factorial Design, using two combination treatment that is the source of the raw material and the size of the craftmanship leaves. The observed parameters include: color, yield, citronellal, citronellol and geraniol. The results of this study indicate that the color of the resulting eligible SNI 06-3953-1995 that is pale yellow to yellow-brown. Combination treatment of the source of the raw material and the size of the leaf is very different from real craftmanship against yield oil of citronella scented with the highest average on the source of raw material for the village of Wedomartani, craftmanship and size of 0.93% leaves 10 cm that is 0.94%. Chemical content of citronellal shows that the source of the raw material and the size of the different leaf craftmanship not real. Chemical content of citronellol and of the raw materials sources that geraniol very different real, whereas the size of different leaf craftmanship not real. The average content of chemical sitronellol and geraniol at the source of the raw materials of the highest village of Kebonharjo, the content of citronellol 13.11% and geraniol content 34.84%. Key words: raw material sources,  treatment, quality of  citronella oils

Pine resin is a non-timber forest product, which has the potential to be developed in Indonesia. One of the pine resin products is gondorukem which has a very wide market. The purpose of this study was to determine the best tapping method, in order to obtain optimal production of pine resin tapping in three age classes of pine trees, namely age classes III, IV and V. The results showed that the average yield of pine resin tapping with the quare method was 18 ,88 gr and drill method 17,77 gr. Meanwhile, the highest average production of sap in age class III was 26.11 g and the lowest was in age class V of 10.21 g. The results also showed that along with the increase in the age class of the plant, the production of tapping sap also decreased significantly, both for tapping pine sap using the drill method, and tapping pine sap using the quare method. The results also showed that as the age class of the plant increased, the use of the quare method gave a higher average yield of 18.88 gr than the drill method of 17.77 gr. Keywords : Age class; tapping method; pine resin production

The usage in the types of wood as the raw material of industry should be appropriate with the basic nature of wood in order to produce the forest’s product with good quality. This research was aimed to : 1) learn the relationship between the different parts of wood and the treatment of surface toward glue’s nature of sengon wood and find out the factors that were most influenced, 2) Handle the weak of glue’s strength because of the influence in a part of gubal and teras wood with the treatment of the surface. The design of this research used the factorial experiment arranged in the design of completely random, with the continuing Turkey test. The factor used in this research consisted of part of the wood (gubal and teras wood) and the treatment of the surface (without treatment, NaOH, ethanol, and alcohol bensen). The observed parameter included the density, the glue’s strength, and the damage to wood because of dry and wet air. The result of this research indicated glue’s nature was really most influenced by the part of the wood and the treatment of the surface. The average rate in the best nature of glue for sengon wood was produced in the part of teras wood, namely the glue’s strength in the dry air, the wood damage in dry air, the strength of wet glue, the damage of wet wood were 42,50 kg/cm2, 80,25 %, 23,61 kg/cm2, 44,92. The average rate in the best nature of glue for sengon wood was produced in the treatment of alcohol bensen, namely the glue’s strength in dry air, the wood damage on dry air, the strength of wet glue, and the damage of wet glue were 43,47 kg/cm2, 87,513 %, 24,375 kg/cm2, and  48,62 %.

Salah satu masalah dalam budidaya bibit Falcataria mollucana di persemaian adalah serangan hama Pseudococcus calceolariae. Serangan hama tersebut menghambat pertumbuhan bibit dan pada akhirnya menyebabkan kematian bibit. Beberapa tanaman yang ditemukan di lapangan, seperti Swietenia macrophylla, Azadirachta indica, Morinda citrifolia, dan Carica papaya, memiliki senyawa bioaktif yang dapat digunakan sebagai pestisida botani. Tujuan dari penelitian ini adalah untuk mengetahui jenis ekstrak daun yang efektif dalam mengendalikan hama P. calceolariae pada bibit F. mollucana berdasarkan penurunan insiden dan keparahan serangan P. calceolariae. Hasil penelitian menunjukkan bahwa ekstrak daun S. macrophylla, A. indica, M. citrifolia, dan C. papaya efektif dalam mengendalikan hama P. calceolariae pada bibit F. mollucana. Ekstrak daun A. indica memberikan penurunan insiden dan keparahan serangan P. calceolariae yang lebih tinggi dibandingkan dengan ekstrak daun lainnya, yaitu sebesar 80,13% dan 57,69%.