Daya Tahan Hidup Fragmen Koloni Rayap Tanah Coptotermes curvignathus Holmgren (Isoptera: Rhinotermitidae) dalam Pemeliharaan di Laboratorium

Information about colony fragments survival of the termite species Coptotermes curvignathus Holmgren in the laboratory is very limited. This study was conducted to determine colony fragments survival of the subterranean termite C. curvignathus Holmgren in laboratory maintenance. The test media used the Termitarium PSIH-IPB: 1999 as a glass vessel containing 4 kg of a mixture of sand and clay with 4 proportions and 4 different pH determined as treatments that would be studied for their effects on termite survival. The results showed that the proportion of the sand:clay mixture affected the survival and feeding preferences of the subterranean termite C. curvignathus Holmgren. The highest percentage of termites that survived was found in the termitarium containing a mixture of sand:clay 50:50. The highest percentage of bait wood weight loss occurred in the test media containing a mixture of sand: clay 50:50. The weight loss of bait wood is directly proportional to the termites survival.Informasi tentang daya tahan hidup koloni atau fragmen koloni spesies rayap Coptotermes curvignathus Holmgren di laboratorium sangat terbatas. Penelitian ini dilakukan untuk mengetahui daya tahan hidup fragmen koloni rayap tanah C. curvignathus Holmgren dalam pemeliharaan di laboratorium. Media pengujian menggunakan Termitarium PSIH-IPB: 1999 berupa bejana gelas yang berisi 4 kg campuran pasir dan liat dengan 4 proporsi serta 4 pH yang berbeda ditentukan sebagai perlakuan yang akan ditelaah pengaruhnya terhadap daya hidup rayap. Hasil penelitian menunjukkan bahwa proporsi campuran pasir:liat berpengaruh terhadap daya hidup dan preferensi makan rayap tanah C. curvignathus Holmgren. Persentase rayap yang bertahan hidup paling tinggi terdapat pada termitarium berisi campuran pasir:liat 50:50. Persentase kehilangan berat kayu umpan tertinggi terjadi pada media pengujian berisi campuran pasir:liat 50:50. Kehilangan berat kayu umpan berbanding lurus dengan daya tahan hidup rayap

KEMAMPUAN BERAKAR CANGKOK PINUS BOCOR GETAH PADA VARIASI JENIS MEDIA CANGKOK DAN DOSIS IBA DI BATURRADEN, JAWA TENGAH

Pine resin product optimization was carried out through various breeding activities, not only by developing a high-sap-producing clone selection but also by developing propagation techniques. Vegetative propagation on the superior genotyping provides a large genetic gain because of its wide variation ratio produced in one selection rotation. Vegetative propagation for Pinus mercusii is commonly done by air layering, shoot cutting, and cutting that produces callous (BAJOS). This study aims to determine the effect of various media and dosages of IBA on the number and length of pine air layering roots in West Banyumas. The plants aged two years from superior clones were air layered on the branch end using two different media, namely topsoil, and cocopeat. They sprayed with IBA solution on the chipped area at dosages of 0 ppm, 500 ppm, and 1000 ppm. The parameter observed is rooting percentages, number, and length of primer and secondary root. The pine air layer on the cocopeat medium performs significantly on rooting percentages compared to topsoil. Some primer roots on 0 ppm of IBA have the best performance compared to others. The 500 and 1000 ppm IBA cannot give significance to the independent variable.Optimalisasi produksi getah pinus dilakukan dengan berbagai kegiatan pemuliaan, selain pengembangan seleksi klon-klon penghasil getah tinggi, dilakukan pula pengembangan teknik perbanyakan pinus. Perbanyakan vegetatif pada genotip unggul menghasilkan genetik gain yang besar, karena rasio variasi yang luas dihasilkan dalam satu rotasi seleksi. Perbanyakan vegetatif untuk jenis pinus biasa dilakukan dengan stek pucuk berkalus (Bajos) dan cangkok. Penelitian ini bertujuan untuk mengetahui pengaruh berbagai media dan dosis IBA pada jumlah dan panjang akar cangkok pinus di KPH Banyumas Barat. Tanaman pinus berumur 2 tahun dari klon-klon unggul dicangkok menggunakan 2 media berbeda yaitu topsoil dan cocopeat dan disemprot larutan IBA dengan dosis 0 ppm, 500 ppm dan 1000 ppm. Cangkok pinus menggunakan media cocopeat menghasilkan persen berakar lebih tinggi dibandingkan pada media tanah, sedangkan dosis IBA secara nyata hanya mempengaruhi jumlah akar primer pada dosis 0 ppm.   Kata kunci: Pinus; cangkok; media; IBA; aka

AKTIVITAS ANTI JAMUR EKSTRAK KULIT KAYU Lannea coromandelica UNTUK MENGHAMBAT PERTUMBUHAN JAMUR PELAPUK KAYU Auricularia auricula- judae: Antifungal activity test of Lannea coromandelica tree bark extract to inhibit the growth of Auricularia auricula-judae

Increased attention to the environment causes the need for alternative preservatives to replace synthetic preservatives. Using plant extracts containing antifungal compounds can be an alternative to reducing the use of wood preservative chemicals. This study aimed to analyze the efficacy of the bark of Lannea coromandelica against the rot fungus Auricularia auricula-judge and to obtain an adequate concentration of preservative which can later be used as a natural preservative in wood from community forests. The method used in this research is divided into three stages. The first stage begins with the process of preparing raw materials. The second stage is to carry out the process of extracting the bark of Java. The last stage of this research is to test the effectiveness of antifungals in Java bark extract. Java bark extract was tested at various concentrations, namely 5 ppm, 10 ppm, 15 ppm, 20 ppm, and 25 ppm, and the control without extract. Each treatment was repeated five times. This study showed that Java bark extract at concentrations of 5 ppm, 10 ppm, 15 ppm, 20 ppm, and 25 ppm could inhibit the growth of the fungus Auricularia auricula-judge. It was indicated by the absence of hyphae that grew after 16 days of observation.Meningkatnya perhatian terhadap lingkungan menyebabkan perlu adanya alternatif bahan pengawet pengganti bahan pengawet sintetis.Penggunaan ekstrak tumbuhan yang mengandung senyawa antifungal, dapat menjadi salah satu alternatif untuk mengurangi penggunaan bahan kimia pengawet kayu.Penelitian ini bertujuan untuk menganalisis efikasi kulit kayu Lannea coromandelica terhadap jamur pelapuk Auricularia auricula-judae dan memperoleh konsentrasi pengawet yang efektif yang nantinya dapat digunakan sebagai pengawet alami pada kayu asal hutan rakyat.Metode yang digunakan dalam penelitian ini dibagi menjadi tiga tahap. Tahapan pertama dimulai dengan proses penyiapan bahan baku. Tahapan kedua adalah melakukan proses pengekstrakan kulit kayu jawa. Tahapan terakhir dari penelitian ini adalah pengujian efektivitas anti jamur pada ekstrak kulit kayu jawa. Ekstrak kulit kayu jawa diuji pada berbagai konsentrasi yaitu 5 ppm, 10 ppm, 15 ppm, 20 ppm dan 25 ppm serta kontrol tanpa pemberian ekstrak. Setiap perlakuan dilakukan lima kali pengulangan.  Hasil penelitian ini menunjukkan ekstrak kulit kayu jawa pada konsentrasi 5 ppm, 10 ppm, 15 ppm, 20 ppm dan 25 ppm dapat menghambat pertumbuhan jamur Auricularia auricula-judae.Hal ini ditunjukkan dengan tidak adanya hifa yang tumbuh selama 16 hari pengamatan

Sifat Anatomi dan Kualitas Serat Kayu Afrika sebagai Bahan Baku Pulp dan Kertas: Anatomical Properties and Quality of African Wood Fiber as A Raw Material for Pulp and Paper

Nowdays, there is growing interested in development of afrika wood utilization. Afrika wood is one fast growing species from plantation forest. The objective of this research was to evaluated of characterization of afrika fiber for pulp and paper production. Anatomical properties of afrika wood were also investigated. Determination of characterization of fiber dimension was conducted based on Tappi (1989). The resulted showed that afrika wood have type of porous namely soliter and radial multiple porous. The parenchyma and ray characters were paratracheal parenchyma confluent and multiseriate types. For fiber characteristic obtained by fiber length, fiber diameter, lumen diameter, and cell wall thickness were 935.33 µm, 28.52 µm, 21.29 µm, and 3.62 µm respectively. The derived value of afrika fibers obtained by runkel ratio, felting power, muhlsteph ratio, coefficient of rigidity, flexibility ratio, and fiber length were 0.43, 35.02, 20.51, 0.12, 0.76, and 935.33 µm respectively. Based on the derived value of afrika fibers, it qualifies as Grade II material for pulp and paper production. Afrika wood can be used as raw material for pulp and paper production.Saat ini, minat terhadap pengembangan pemanfaatan kayu di Afrika mengalami peningkatan. Kayu Afrika merupakan salah satu spesies kayu cepat tumbuh  yang berasal dari hutan tanaman. Tujuan dari penelitian adalah menganalisis karakteristik serat kayu  sebagai bahan baku pulp dan kertas. Selain itu, penelitian ini juga menganalisis sifat anatomi kayu Afrika. Penentuan karakterisasi dimensi serat dilakukan berdasarkan Tappi (1989). Hasil penelitian menunjukkan bahwa kayu afrika mempunyai tipe pori soliter dan berganda radial. Parenkim dan jari-jari kayu afrika memiliki tipe parenkim paratrakeal konfluen dan multiseriat. Untuk karakteristik serat kayu afrika diperoleh panjang serat, diameter serat, diameter lumen, dan tebal dinding sel masing-masing sebesar 935,33 µm, 28,52 µm, 21,29 µm, dan 3,62 µm. Nilai turunan dimensi serat serat afrika yang diperoleh berdasarkan bilangan runkell, daya tenun, muhlsteph ratio, koefisien kekakuan, rasio fleksibilitas, dan panjang serat berturut-turut adalah 0,43, 35,02, 20,51, 0,12, 0,76, dan 935,33 µm. Berdasarkan nilai turunan serat Afrika, serat ini memenuhi syarat Kelas II sebagai bahan produksi pulp dan kertas. Kayu Afrika dapat digunakan sebagai bahan baku produksi pulp dan kertas

ANALISIS KESESUAIAN PENGGUNAAN LAHAN BERDASARKAN KELAS KEMAMPUAN LAHAN DI DAS MAROS

Land use change in the Tanralili sub-watershed (upstream of the Maros watershed) is the main cause of decreased vegetation density and landslides. This study aims to identify land capability classes, analyze the suitability of land use with land capability classes and formulate land use directions based on Maros watershed land capability classes. The data obtained from laboratory analysis determined the land capability class; the land cover map was overlaid with the land capability class map to determine the suitability of land use and the next direction. The results of the land capability classification in the Maros watershed obtained six land capability classes, with Class IV dominating the land study with a total area of 37,792.34 ha (62.11%). The Maros watershed has 24,714.18 ha (40.62%) of unsuitable land. The direction for land management carried out on unsuitable land units is to direct community forestry activities (HKm) with an agroforestry system on the use of dryland agricultural land within forest areas through a supported talun-garden and grass-forest (silvopasture) model approach with vegetative conservation efforts.Peningkatan jumlah penduduk selalu jalan beriringan dengan kemajuan pembangunan. Pesatnya pembangunan untuk memenuhi berbagai kebutuhan hidup manusia membutuhkan semakin banyak lahan, sedangkan luas lahan tetap sehingga menyebabkan penggunaan lahan yang tidak sesuai. Penelitian ini bertujuan untuk mengidentifikasi kelas kemampuan lahan, menganalisis kesesuaian penggunaan lahan dengan kelas kemampuan lahan, dan merumuskan arahan penggunaan lahan sesuai dengan kelas kemampuan lahan DAS Maros. Hasil identifikasi kelas klasifikasi kemampuan lahan di DAS Maros diperoleh 6 kelas kemampuan lahan dengan Kelas kemampuan IV mendominasi areal penelitian dengan total luas mencapai 37.792,34 ha (62,11%). Diikuti dengan kelas kemampuan II seluas 13.614,84 ha (22,38%), kelas kemampuan III seluas 5.997,26 ha (9,86%), kelas kemampuan V seluas 2.130,03 ha (3,50%), kelas kemampuan VII seluas 1.206,01 ha (1,98%), dan kelas kemampuan VI seluas 103,16 ha (0,17%). Hasil uji kesesuaian penggunaan lahan DAS Maros dengan kelas kemampuan lahan dan kawasan hutan, DAS Maros memiliki luas lahan 24.714,18 ha (40,62%) yang penggunaan lahannya tidak sesuai sedangkan 59,38% lainnya sesuai. Arahan pengelolaan lahan yang dilakukan pada unit lahan yang tidak sesuai adalah dengan melakukan upaya konservasi secara vegetatif dan mekanik

ANALISIS KESEJAHTERAAN RUMAH TANGGA PEMANEN MADU HUTAN DI TAMAN NASIONAL TESSO NILO DAN SEKITARNYA DI PROVINSI RIAU: Analysis of Households Welfare Forest Honey Harvester in Tesso Nilo National Park and Surroundings in Riau Province

The objectives of this study were to determine the Sialang Trees management system in Tesso Nilo National Park and its surroundings, analyze the Sialang management business, analyze the contribution of Sialang management business income to total household income, and analyze the welfare of forest honey harvesters. This research was conducted in Lubuk Kembang Bunga Village, Ukui District, Pelalawan Regency, Riau Province. The informants in this study were 7 families who harvested Sialang Tree in the Tesso Nilo National Park area. The results of this study found that the Sialang Trees management system had been carried out well and harvesting was carried out in a sustainable manner. During a period of one year, three honey harvests were carried out, resulting in a total of 469 kg of honey with a relatively fixed selling price of Rp. 120,000/kg. The net income of honey takers is Rp. 51,834,334/year. The contribution of Sialang management business income to total household income is 16,95%. 57.1% of the members of the Madu Sialang farmer group are classified as already prosperous.Tujuan dari penelitian ini adalah untuk mengetahui sistem pengelolaan Kepungan Sialang di Taman Nasional Tesso Nilo dan sekitarnya, menganalisis usaha pengelolaan Sialang, menganalisis kontribusi pendapatan usaha pengelolaan Sialang terhadap total pendapatan rumah tangga, serta menganalisis kesejahteraan pemanen madu hutan. Penelitian ini dilakukan di Desa Lubuk Kembang Bunga, Kecamatan Ukui, Kabupaten Pelalawan, Provinsi Riau. Informan dalam penelitian ini adalah 7 kepala keluarga yang memanen Sialang yang berada di dalam kawasan Taman Nasional Tesso Nilo. Hasil penelitian ini menemukan bahwa sistem pengelolaan Kepungan Sialang sudah dilakukan dengan baik dan pemanenan dilakukan secara berkelanjutan. Selama periode satu tahun dilakukan tiga kali masa panen madu, didapatkan total madu 469 kg dengan harga jual yang relatif tetap yaitu seharga Rp 120.000/kg. Pendapatan bersih pengambil madu adalah sebesar Rp 51.834.334/tahun. Kontribusi pendapatan usaha pengelolaan Sialang terhadap total pendapatan rumah tangga adalah sebesar 16,95%. 57,1% anggota kelompok tani Madu Sialang tergolong sudah sejahtera

STRATEGI PENGEMBANGAN RESTORASI RAWA BUNDER BERBASIS SWOT DI TAMAN NASIONAL WAY KAMBAS: SWOT-Based Bunder Swamp Restoration Development Strategy In Way Kambas National Park

Restoration is an effort to increase forest function for carrying capacity and maintenance of life support systems. Way Kambas National Park (TNWK) has been doing restoration activities at the Rawa Bunder Resort since 2021. This study aims to determine the strategy for developing the restoration of Rawa Bunder, TNWK. Collecting data through interviews with the parties (community and managers) using a questionnaire; then analyzing using the Strength, Weakness, Opportunity, Threats (SWOT) method. From the analysis results, the average total score on the IFAS matrix is 1.54, and the EFAS matrix is 1.15. These results indicate that the position of internal and external factors in the development strategy of the Rawa Bunder restoration, TNWK is in quadrant one. Thus, the strategy for developing the restoration of Rawa Bunder, TNWK, that must be applied is aggressive, namely by using strength to take advantage of opportunities.Restorasi adalah upaya peningkatan fungsi hutan untuk daya dukung dan pemeliharaan sistem penyangga kehidupan. Taman Nasional Way Kambas (TNWK) telah melakukan kegiatan restorasi di Resort Rawa Bunder sejak tahun 2021. Penelitian ini bertujuan untuk mengetahui strategi pengembangan restorasi Rawa Bunder, TNWK. Metode pengumpulan data melalui wawancara kepada para pihak (masyarakat dan pengelola) dengan menggunakan kuesioner; kemudian dianalisis mengunakan metode Strength, Weakness, Opportunity, Threath (SWOT). Dari hasil analisis didapatkan nilai total skor rata-rata pada matriks IFAS sebesar 1,54 dan matriks EFAS sebesar 1,15. Hasil tersebut menunjukkan bahwa posisi faktor internal dan eksternal dalam strategi pengembangan restorasi Rawa Bunder, TNWK berada di kuadran satu.  Dengan demikian, strategi pengembangan restorasi Rawa Bunder, TNWK yang harus diterapkan adalah strategi agresif, yaitu dengan menggunakan kekuatan untuk memanfaatkan peluang

UJI AKTIVITAS ANTI JAMUR EKSTRAK KULIT DAN BATANG Lannea coromandelica DALAM MENGHAMBAT PERTUMBUHAN Schizophyllum commune Fries

Preservation is one way to extend the life of shallow, quality wood. However, synthetic chemical preservatives, especially those made from CCA (Copper, Chrom, Arsenic), are dangerous for the environment because they are difficult to decompose and can also cause health problems for humans. Utilization of natural preservatives from plant extracts is one effort to reduce this. Plants that have the potential as natural preservatives are Lannea coromandelica (Javanese wood). Java wood contains compounds in the form of flavonoids, saponins, polyphenols and tannins, which can inhibit the growth of Candida albicans and Trichophyton mentagrophytes fungi. This study aims to determine the effectiveness of Lannea coromandelica bark and stem extract at concentrations of 25 ppm, 50 ppm, 75 ppm and 100 ppm on the growth of the mycelium of the wood rot fungus Schizophyllum commune. The study was conducted by mixing the extracts of each concentration in the growth media and then inoculating the wood rot fungus S. commune right in the middle of the growth media. The research data were analyzed using a split-plot design and analyzed using a split-plot design with two factorial split plots. Two factorial split-plot analyses showed that the concentration change treatment significantly affected the growth of the S. commune mycelium. The results showed that the effectiveness of Java bark extract at all concentrations was classified as very resistant with an Antifungal Activity (AFA) value of 100%, and Java bark extract at a concentration of 25 ppm showed effectiveness that was classified as resistant with an AFA value of 71%). The concentration of the extract affects the growth of the S. commune mycelium. The higher the concentration, the slower the growth of the S. commune mycelium occurs. Java bark extract with a concentration of 25 ppm and 50 ppm has the potential to be a natural wood preservative because it can reduce the growth of the mycelium of the wood rot fungus S. commune.Pengawetan merupakan salah satu cara untuk memperpanjang umur kayu, terutama kayu yang berkualitas rendah.  Penggunaan pengawet kimia sintetik, terutama yang berbahan dasar CCA (Copper, Chrom, Arsenik) berbahaya bagi lingkungan karena sulit terurai dan juga dapat menimbulkan gangguan kesehatan bagi manusia.  Pemanfaatan bahan pengawet alami dari ekstrak tumbuhan merupakan salah satu usaha untuk mengurangi hal tersebut.  Tanaman yang memiliki potensi sebagai bahan pengawet alami adalah Lannea coromandelica (kayu jawa). Kayu jawa memiliki kandungan senyawa berupa flavonoid, saponin, polifenol dan tanin yang dapat menghambat pertumbuhan jamur Candida albicans dan Trichophyton mentagrophytes. Penelitian ini bertujuan untuk mengetahui efektivitas ekstrak kulit kayu dan batang Java Lannea coromandelica pada konsentrasi 25 ppm, 50 ppm, 75 ppm dan 100 ppm terhadap pertumbuhan miselium jamur pelapuk kayu Schizophyllum commune. Penelitian dilakukan dengan mencampurkan ekstrak setiap konsentrasi pada media tumbuh lalu menginokulasikan cendawan pelapuk kayu Schizophyllum commune tepat di tengah media tumbuh. Data penelitian dianalisis dengan menggunakan rancangan petak terbagi dianalisis dengan menggunakan rancangan petak terbagi split plot dua faktorial. Analisis split plot dua faktorial menunjukkan bahwa perlakuan perubahan konsentrasi berpengaruh sangat nyata terhadap pertumbuhan miselium Schizophyllum commune. Hasil penelitian menunjukkan bahwa efektivitas ekstrak kulit kayu jawa pada semua konsentrasi tergolong sangat tahan dengan nilai Antifungal Activity (AFA) sebesar 100% dan ekstrak batang kayu jawa pada konsentrasi 25 ppm menunjukkan efektifitas yang tergolong tahan dengan nilai AFA sebesar 71%). Konsentrasi ekstrak mempengaruhi besar pertumbuhan miselium Schizophyllum commune. semakin tinggi konsentrasi maka semakin lambat pertumbuhan miselium Schizophyllum commune yang terjadi. Ekstrak kulit kayu jawa konsentrasi 25 ppm dan 50 ppm ekstrak batang kayu jawa berpotensi sebagai pengawet kayu alami karena dapat mengurangi pertumbuhan miselium cendawan pelapuk kayu Schizophyllum commune

Strategi Pengelolaan Ekowisata Berbasis Masyarakat di Bukit Pergasingan, Desa Sembalun, Lombok Timur: Community-Based Ecotourism Management Strategy in Bukit Pergasingan, Sembalun Village, East Lombok

Bukit Pergasingan is a tourist attraction that has been developing for a long time. It is necessary to review essential aspects in the management of Bukit Pergasingan, such as attractiveness, facilities, accessibility, and additional services. Apart from that, another problem with its management is that it is not yet known whether it has implemented the principles of community-based ecotourism development in its management. This research aimed to determine community-based ecotourism management strategies in Bukit Pergasingan. The method used in this research is the descriptive method. The objects used in this research are the management institution (BKPH Rinjani Timur) and the management partner (Kelompok Koperasi Wisatani). The tools used in conducting this research were questionnaires, cameras, laptops, recorders, and stationery. The data used in this research are qualitative and quantitative. The data sources used in this research are primary data and secondary data. The data analysis used is SWOT analysis. The results of the research show that the strategies used for managing Ecotourism in the Bukit Pergasingan tourist attraction are socializing Bukit Pergasingan tourism with its potential by involving it to attract tourists, packaging more attractive and more educational tour packages related to conservation to guests, optimizing collaboration with NGOs, the Tourism Office or related agencies for the development of Bukit Pergasingan tourism.Bukit Pergasingan is a tourist attraction that has been developing for a long time. It is necessary to review essential aspects in the management of Bukit Pergasingan, such as attractiveness, facilities, accessibility, and additional services. Apart from that, another problem with its management is that it is not yet known whether it has implemented the principles of community-based ecotourism development in its management. This research aimed to determine community-based ecotourism management strategies in Bukit Pergasingan. The method used in this research is the descriptive method. The objects used in this research are the management institution (BKPH Rinjani Timur) and the management partner (Kelompok Koperasi Wisatani). The tools used in conducting this research were questionnaires, cameras, laptops, recorders, and stationery. The data used in this research are qualitative and quantitative. The data sources used in this research are primary data and secondary data. The data analysis used is SWOT analysis. The results of the research show that the strategies used for managing Ecotourism in the Bukit Pergasingan tourist attraction are socializing Bukit Pergasingan tourism with its potential by involving it to attract tourists, packaging more attractive and more educational tour packages related to conservation to guests, optimizing collaboration with NGOs, the Tourism Office or related agencies for the development of Bukit Pergasingan tourism

Karakteristik Biopelet dari Tanaman Lamtoro (Leucanea leucocephala Lam) dan Gamal (Gliricidia sepium Jacq) pada Berbagai Variasi Komposisi dan Ukuran Partikel : Characteristics of Biopellet from Lamtoro (Leucanea leucocephala Lam) and Gamal (Gliricidia sepium Jacq) at Different Particle Size and Composition

Energy needs continue to increase, resulting in energy reserves decreasing yearly, especially those made from fossil fuels, which are non-renewable energy, so their availability is limited. Therefore, efforts are needed to find alternative energy sources that can be developed. An energy source that can be produced is biomass. Gamal (Leucanea leucocephala)  and Lamtoro (Gliricidia sepium) plants are biomass often used as alternative raw materials for energy, namely biopellets, because they have high calorific value. This study aimed to determine the characteristics of biopellets from L. leucocephala and G. sepium with various compositions and particle sizes. The composition of the L. leucocephala and G. sepium raw materials is 1:1, 1:2, and 2:1 with a particle size that is passed 40 mesh retained 60 mesh, passed 60 mesh retained 80 mesh, and passed 80 mesh retained 100 mesh. Quality testing of biopellets based on SNI 8951:2020 includes density, moisture content, fly content, ash content, fixed carbon, and calorific value. The results showed that the biopellets were following SNI 8951:2020, namely the average value of density, moisture content, and ash content, for the parameters of the value of the flying substance content and fixed carbon were not in accordance. Statistics have shown that particle size significantly affects density, ash content, volatile matter, and fixed carbon. The composition affects the moisture content, fixed carbon, volatile matter content, and ash content. The best biopellets were produced in the treatment with 80 mesh particle size and 2:1 composition.Kebutuhan energi terus meningkat mengakibatkan cadangan energi terus berkurang setiap tahunnya, khususnya yang berbahan dasar fosil ini merupakan energi yang tak terbarukan sehingga ketersediannya terbatas. Oleh karena itu, perlu upaya untuk mencari sumber energi alernatif yang dapat dikembangkan. Sumber energi yang dapat dikembangkan adalah biomassa. Tanaman gamal dan lamtoro merupakan biomassa yang sudah sering digunakan sebagai alternatif bahan baku untuk energi yaitu biopelet karena memiliki nilai kalor yang tinggi. Tujuan dari penelitian ini yaitu mengetahui karakterisik biopelet dari kayu gamal dan lamtoro serta berbagai komposisi dan ukuran partikel yang berbeda. Komposisi campuran bahan baku gamal dan lamtoro adalah 1:1, 1:2, 2:1, 1:0 dan 0:1 dengan ukuran partikel yaitu lolos 40 mesh tertahan 60 mesh, lolos 60 mesh tertahan 80 mesh dan lolos 80 mesh tertahan 100 mesh. Pengujian kualitas biopelet berdasarkan SNI 8951:2020 meliputi: kerapatan, kadar air, kadar zat terbang, kadar abu, karbon tetap dan nilai kalor. Hasil penelitian menunjukkan bahwa biopelet yang dibuat sesuai dengan SNI 8951:2020 yaitu untuk rata-rata nilai kerapatan, kadar air, dan kadar abu, sedangkan parameter nilai kadar zat terbang dan karbon tetap belum sesuai. Berdasarkan analisis statistika didapatkan bahwa ukuran partikel berpengaruh nyata terhadap kerapatan, kadar abu, zat menguap dan karbon terikat, sedangkan kombinasi berpengaruh terhadap kadar air, karbon tetap, kadar zat menguap dan kadar abu. Biopelet terbaik dihasilkan pada perlakuan ukuran partikel 80 mesh dengan komposisi 2:1