Sri Nugroho Marsoem

• Ph.D
• Principal Investigator at Universitas Gadjah Mada

Background: Efforts to enhance the genetic quality of Eucalyptus pellita F. Muell by PT. Riau Andalan Pulp and Paper included breeding several clones to optimize raw materials for pulp and paper production. Three clones—CEP06, CEP13, and CGP32—were selected to determine their potential based on pulp yield and physical properties. Methods: The wood...

Utilization of fast-growing wood species needs to be increased to support the sustainability of wood industry in Indonesia. Burflower (Neolamarckia cadamba Miq.) is a fast-growing wood species that widely planted in some community forest on Java Island recently, including in Yogyakarta. This study aims to provide information about burflower wood qu...

Five lesser-known species from natural forests in Central Kalimantan, viz., cempaka (Michelia champaca Linn), mentawa (Artocarpus rigidus Blume), menjalin (Xanthophyllum excelsum Miq.), kempili (Lithocarpus elegans (Blume) Hatus. Ex Soepadmo), and sempori (Dillenia sp.) were evaluated in the laboratory for their specific gravity, fiber morphology,...

The establishment of fast-growing teak plantations in Indonesia provides opportunities for shorter harvesting periods. However, it also poses challenges on wood utilization due to juvenility and growth stress-related defects. This study investigated growth stress levels and some wood properties of 10-year-old fast-growing teak grown in Gunungkidul...

Heat treatment of wood can decrease its heat capacity and thermal transitions, which are thermal behavior properties of wood. A calorimetric study that highlights the thermal behavior of the molecular mobility of materials is necessary to investigate the thermal degradation of wood. Furthermore, combining it with a nondestructive measurement techni...

Using 146 journals, 6 chapters, 4 reports, 2 books, and a proceeding, this research seeks to investigate the factors that influence variations in the proportion of heartwood. The data were collected through an online search in databases such as Scopus, Science Citation Index, Science Direct, Google Scholar, and ResearchGate with seven search queri...

Global warming-induced climate change causes significant agricultural problems by increasing the incidence of drought and flooding events. Waterlogging is an inevitable consequence of these changes but its effects on oil palms have received little attention and are poorly understood. Recent waterlogging studies have focused on oil palm seedlings, w...

Electric power generation by thermoelectric material utilizing radiated heat of from roof’s house, engine and others is potential clean energy in tropical areas such as Indonesia. In this study, thermoelectric materials such as silicon carbide (SiC/SiO2/C) composites were developed from carbonized Cryptomeria japonica wood infiltrated ethyl silicat...

Swietenia mahogani (L.) Jacq. is one of Indonesia's commercially valuable timbers. We investigated the time or age at which heartwood formation begins, and observed and determined whether the occurrence of heartwood formation was affected by age or diameter. The presence of heartwood from the bottom to the top (at various axial positions) of the st...

The presence of heartwood is one of the most important parameters in economic value that can affect the final use of wood. For construction materials, the presence of a large heartwood is very necessary, considering this will have a positive effect on the basic properties of the wood. Meanwhile, its heartwood proportion has a negative impact on the...

This study evaluates the characteristics of superior clones of Eucalyptus pellitaandAcaciahybrid (Acacia mangium×A. auriculiformis) aged six years selected from abreeding program in Indonesia as materials for pulp and papermaking. Height, diameter, and wood densitydiffered significantly between species and among the clones, with respective mean val...

"Acacia hybrid kraft pulping, with the addition of different non-ionic commercial surfactants, as well as its subsequent elemental chlorine free (ECF) bleaching, was studied. The characteristics of bleachable pulps made by conventional kraft and by kraft-surfactant pulping methods were investigated. The results revealed that the type and dosage of...

We investigated the distribution of extractive, phenolic, and polysaccharides content of young S. mahagoni trees aged 1 to 5 years. The wood powder materials in two vertical positions (bottom and top) were successively extracted using n-hexane, methanol, and hot water solutions. The results showed that there was a significant interaction between th...

Currently, a large amount of oil palm shell has been dumped as waste from palm oil processing in Indonesia. Using a low concentration of zinc chloride (ZnCl2), thermal treatment during pre-carbonization was applied in the preparation of activated carbon from oil palm shells at various temperatures and reaction durations. This study, therefore, aims...

This study aims to investigate the sugar components which play an important role in the process of heartwood formation in young Swietania mahagoni. The methanol-water (70/30, v/v) extract was analyzed by GC-MS to determine sugar constituents. The content of methanol- water extract ranged from 3.7 to 7.8% based on dried wood. After a 4-5 year durati...

The treatment of kenaf fiber surfaces with chemicals has proven to be an effective method to improve composite properties. Meanwhile, natrium chloride (NaCl) is one of the chemicals that has great potential to be used for modifying natural fibers. Therefore, this study aims to investigate the characteristics of a composite board made from NaCl-trea...

Kayu sebagai biomaterial memiliki sifat yang tidak menguntungkan yaitu kayu dapat terbakar. Kebakaran dalam rumah dengan kostruksi material kayu membahayakan keselamatan jiwa manusia. Upaya telah dilakukan dalam mencegah kebakaran dengan meningkatan daya tahan material kayu. Penelitian ini dilaksanakan untuk mengembangkan material tahan api berbasi...

Increasing the growth rate of teak trees is carried out to shorten the tree harvest rotation and reduce the deficit of teak timber supply, while maintaining the superiority of wood properties. The study was conducted to study the nature offive-year-oldJUNTeak wood in three classes of tree diameter and radial position of the trunk.This study employe...

Putro GS, Marsoem SN, Sulistyo J, Hardiwinoto S. 2020. The growth of three teak (Tectona grandis) clones and its effect on wood properties. Biodiversitas 21: 2814-2820. Various clones of superior teak (Tectona grandis L. f.) trees have recently been introduced in several land conditions. A study was conducted on three different clones of superior t...

High productivity fast growing species plantation establishment such as the line planting of red meranti (i.e Shorealeprosula and Shorea parvifolia) with intensive silviculture is one potential solution to improve wood supply for industries in Indonesia. However, the information of anatomical properties and wood properties of these two species rela...

Pore size distribution and microstructure development of oil palm shell heat treated at 300ºC and treated at 300ºC and recarbonization at 600ºC followed by slow- or fast heating treatment up to 700ºC were investigated by small angle X-ray scattering (SAXS), N2 gas adsorption and Raman spectroscopy. On oil palm shell heat-treated at 300ºC, slow heat...

Lipophilic extractives in the dichloromethane extract from Eucalyptus pellita wood and bark were identified by GC-MS. Of the various morphological parts, the bark samples contain more extractives than wood samples. The largest extractive content was measured in the bark of the top part. Four groups (i.e., free fatty acids, sterols-steroids, triterp...

The objectives of this research were to investigate the chemical composition of Eucalyptus pellita F. Muell stemwood. Wood powder from the middle part of two trees was successively extracted by dichloromethane, ethanol, and hot water. The content of dichloromethane, ethanol, and hot water extracts were 0.17 to 0.47 %, 2.56 to 3.16 %, and 0.68 to 1....

New observations of radial sieve tubes in the secondary xylem of two genera and four species of agarwood — Aquilaria sinensis , A. crasna , A. malaccensis and Gyrinops versteeghii (Thymelaeaceae) — are presented in this study. The earliest radial sieve tubes in Gyrinops are formed in the secondary xylem adjacent to the pith. The radial sieve tubes...

Eucalyptus pellita is the fast-growing species which is being developed for a raw material of pulp and paper in Indonesia. The aim of this research was to evaluate the total phenolics (TPC) and flavanols contents (TFC) in the stemwood and bark parts from four individual trees. Another purpose was to determine its cell wall contents. Wood and bark m...

Premise: Cambial activity in some tropical trees varies intra-annually, with the formation of xylem rings. Identification of the climatic factors that regulate cambial activity is important for understanding the growth of such species. We analyzed the relationship between climatic factors and cambial activity in four tropical hardwoods, Acacia man...

The oxygen isotopic composition (δ¹⁸O) of tree-ring cellulose has been recognized as a powerful tool for dendroclimatological and dendrochronological investigations in Asia. Only a few studies of cellulose δ¹⁸O so far published, however, have been conducted in Indonesia, and the spatial coherence of cellulose δ¹⁸O has yet to be clarified. In this s...

Background and aims: In response to a gravitational stimulus, angiosperm trees generally form tension wood on the upper sides of leaning stems in order to reorientate the stems in the vertical direction. It is unclear whether the angle of inclination from the vertical affects tension wood formation. This study was designed to investigate negative...

Radial variations in wood properties, cell morphologies and cell proportions were investigated for nine 4-year-old Neolamarckia cadamba trees planted in a community forest in East Java, Indonesia. The relationships between stem diameter and wood properties, cell morphologies or cell proportions were determined to ascertain the effects of stem diame...

Carbonized wood which possesses microstructure with random orientation graphitic crystallites and with pores between the graphitic crystallites, is potentially developed into new material of silicon carbide (SiC) composite, a high performance material for engineering purposes. This paper investigates the development of the microstructure in the tur...

Silicon carbide rods were formed in composites of silicon carbide/silicon dioxide/carbon (SiC/SiO2/C) from carbonized wood impregnated with ethyl silicate-40 after heat treatments using a pulse current apparatus. The effect of reaction temperatures, heating rates and pressures on the SiC rods formation was investigated. Raman spectroscopy indicated...

The study on catalytic pyrolysis decomposition of Shorea leprosula wood biomass to form aromatic compounds in fast pyrolysis was performed by pyrolytic-gas chromatography/mass spectroscopy (Py-GC/MS) and transmission electron microscope (TEM) - electron energy-loss spectroscopy (EELS) to analyze the chemical compound and solid residue microstructur...

Sukun (Artocarpus communis FORST), also known as breadfruit, is a multipurpose tree and is mostly grown in community forest. In an effort to increase the added value of Sukun trees grown in community forest, a study on the cell proportion and dimension of the wood was conducted by using Sukun trees grown on Karangmojo Village, Bantul Regency, Yogya...

The effect of radial growth rate on anatomical characteristics and wood properties were examined in 4-year-old Neolamarckia cadamba. A total of 63 standing trees were categorised into three groups (slow, middle and fast growth) according to their stem diameter. Mean values of stem diameter, tree height and stress-wave velocity were 15.0 cm, 13.4 m...

The objectives of this study are to obtain the basic knowledge of anatomical characteristics and wood properties of thinning trees of young teak (Tectona grandis L.F.) for fulfill the timber demand in Indonesia. Nine thinning trees of 5-year-old teak clone trees were used for analyzing the cell morphology and air-dry density. Vessel diameters in po...

Kebutuhan kayu jati semakin meningkat dari tahun ke tahun seiring dengan peningkatan jumlah penduduk dan taraf hidup masyarakat. Di lain pihak, jati merupakan salah satu jenis dengan rotasi umur yang panjang. Selain itu, ketersediaan kayu jati dari Perum Perhutani belum mampu memenuhi kebutuhan kayu jati untuk industri. Oleh sebab itu, berbagai upa...

The aim of this study was to evaluate the effects of radial growth on wood properties and anatomical characteristics, and to clarify the xylem maturation process in Gmelina arborea. Stem diameter, tree height, and stress-wave velocity were investigated for 54 trees of 5-year-old G. arborea planted in Indonesia. In addition, radial variations of woo...

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Terentang wood (Campnosperma auriculata Hook.f) is relatively low in specific gravity (0.3), hence its utilization as pulp by chemi-mechanical is an alternative process. Energy consumption was reduced by applying lignin degrading fungi (Phanerochaete chrysosporium) as pretreatment in the chemi-mechanical process. This paper examines the effects of...

We examined the potential bioenergy of two Acacia wood species, Acacia mangium (Am) and Acacia auriculiformis (Aa). The objectives of this study were to assess the basic properties (anatomical, physical, and chemical-related properties) and to compare bioenergy potentials among these two Acacia species from Indonesia. Six 3-year-old trees were rand...

Local wisdom in utilizing swamp soil and water to improve the quality of gelam wood in Central Kalimantan becomes an interesting phenomenon. Improving the quality of wood can economize on the use of wood, which in turn preserves the forests in peat swamp lands. Gelam (Melaleuca sp.) woods that are mostly found in peat swamp forests can be used as p...

Mechanical properties of sawn timber are the most important characteristics in many applications, particularly for structural timber. The previous paper in this series reported on the physical properties of teak trees at different sites (Panggang, Playen, Nglipar) from community forests in Gunungkidul regency. In this study, the mechanical properti...

The objective of this work is to explore the variation of physical properties of wood from teak trees grown in 3 different sites (Panggang, Playen, Nglipar) from community forests of Gunungkidul Regency. The measured parameters were green moisture content (GMC), basic density (BD), and linear as well as volumetric shrinkage. The three trees were co...

Acacia mangium, originated from Queensland, ussually is used as raw material in pulp and paper in Indonesia. Actually, Indonesia has its original A mangium distributed in Papua natural forest. Characteristics of sulfate pulp of A mangium especially from natural forest from Merauke Papua was examined. This study was to acquire the effect of heartwoo...

Sifat mekanika dari kayu gergajian adalah persyaratan terpenting dalam banyak penerapan khususnya untuk keperluan konstruksi. Paper ini merupakan lanjutan dari penelitian sifat fisika kayu di tiga tempat tumbuh (Panggang, Playen, Nglipar) hutan rakyat Kabupaten Gunungkidul. Pengujian sifat mekanika dilakukan mengacu pada British Standards 373:57. H...

ABSTRAK Masyarakat di daerah rawa gambut memerlukan kayu sebagai cerucuk atau tiang pancang rumah. Kayu Gelam (Maleleuca sp) ditemukan melimpah di hutan rawa gambut di Kalimantan. Kayu Gelam termasuk kelas awet 3 yang berarti hanya dapat dipergunakan di bila berhubungan dengan tanah selama 3 tahun. Kenyataan yang ada kayu Gelam sebagai cerucuk /ti...

Fiber morphology and basic characteristics of Legi bamboos (Gigantochloa atter) growing on Yogyakarta were studied considering their age and height positions in the culms. Culms of 4, 16, and 40 months were harvested, and their total lengths were measured. The length, diameter, and wall thickness of each internode were measured. All the sample culm...

Oleoresin production and turpentine yield of Pinus merkusii plantation of three subpopulations from Aceh provenance (Jantho, Takengon and Blangkejeren) and Java land race were examined. The plantation is located in Jember District (600 m above sea level), east Java, Indonesia. Significant differences in oleoresin and turpentine yield were found bet...

Trees containing large growth stresses, leads to significant losses due to split, checked and also warped. The variation of growth-stress in teak trees grown in the three community forest sites of Gunungkidul regency was observed. The released strain levels were also discussed in relation to the growth-rate and specific gravity. The strains release...

Anatomical characteristics (vessel diameter [VD], fiber wall thickness [FWT], fiber diameter [FD], vessel element length [VEL], and fiber length [FL]) and wood properties (basic density [BD] and compressive strength parallel to grain [CS] in the green condition) were determined for 27 12-yr-old teak trees planted in Java Island, Indonesia. The mean...

The effect of storage time of cloud ear fungus (Auricularia polytricha) spent culture media (SCM) made of three kinds of tropical hardwood species (Falcataria moluccana, Tectona grandis, and Shorea sp.) was investigated on their saccharification efficiency as a potential pretreatment of reducing sugar production. When SCM was stored at 25°C for 2 m...

Lime jelutung (Dyera lowii Hook) is one tree species in peat swamp forests with economic value. Wood and latex can be used. Leather and roots are also beneficial for medicine. One factor affecting peat soil fertility is thickness. There is a high correlation between peat thicknesses with some nutrients content. Allegedly peat thickness variation af...

We examined the enzymatic saccharification and ethanol fermentation of the spent media (SMs) from Auricularia polytricha cultivation using wood meals of Falcataria moluccana, Shorea sp., and Tectona grandis. Although the hydrolysis weight decrease and reducing sugar yield were higher in SM of F. moluccana, the ethanol yield was higher in SM of Shor...

Background and AimsGibberellin stimulates negative gravitropism and the formation of tension wood in tilted Acacia mangium seedlings, while inhibitors of gibberellin synthesis strongly inhibit the return to vertical growth and suppress the formation of tension wood. To characterize the role of gibberellin in tension wood formation and gravitropism,...

Tree improvement programs for teak (Tectona grandis) have mainly focused on breeding of trees with superior growth characteristics. However, improvement in wood quality should be included in breeding programs for high yield and high quality timber. In the present study, growth characteristics [stem diameter (D), tree height (H), and bole volume (V)...

Angiosperm trees generally form tension wood on the upper sides of leaning stems. The formation of tension wood is an important response to gravitational stimulus. Gibberellin appears to be involved in the differentiation of secondary xylem, but it remains unclear whether gibberellin plays a key role in the formation of tension wood and plant gravi...

White rot fungus are wood degrading organism able to decompose wood polymers; lignin, cellulose and hemicelluloses. Some species of white rot fungi decompose wood lignin over wood polysaccharides (e.g. cellulose), make it preferable for biopulping applications. A study of Phanerochaete chrysosporium Burds fungi inoculation to kapok chips was conduc...

The anatomical characteristics and density of wood were examined in 23-year-old Acacia mangium trees that had been planted in Yogyakarta, Indonesia. The seeds had been collected from trees of five different provenances. The distance from the pith of the boundary between juvenile and mature wood was also examined to clarify the maturity of the wood....

The aim of the study was to evaluate the effects of growth site on wood growth properties, of teak (Tectona grandis L.f.). The trial was conducted on a teak plantation (dbh about 30 cm) in three different ecological types of typical community forest stands (Panggang, Playen and Nglipar) in Gunungkidul. Growth properties included the thickness and p...

We investigated the feasibility of using several fast-growing tropical or subtropical hardwood species for timber production by measuring key wood qualities in relationship to the high rates of lateral growth. The trees tested were sampled from even-aged plantations of Acacia mangium, A. auriculiformis, hybrid Acacia (A. mangium × A. auriculiformis...

• Awareness of the shortage of fossil resources leads to an increasing demand for woody biomass. We investigated the feasibility of using fast-growing Gmelina arborea wood for material production. Gmelina arborea wood samples were collected from trees of varying cambium ages in Indonesia, from 3.5-, 7- and 12-year-old plantations. • The lateral gro...

This study aimed to identity characteristic and variation of A. Mangium wood physical properties in different planting spacings and axial-radial position. Materials used were 8 years old Amangium wood from Subanjeriji, Palembang, South Sumatera with three spacings: 2 m x 3 m, 2 m x 4 m and 3 m x 3 m. Three sample trees in diameter of 21 cm from eac...

This study shows an effort to obtain the best performance of Eucalyptus pellita trees, which was conducted by examining the physical properties of wood of 116 months age Eucalyptus pellita trees. The trees of various families used in this study were all grown in Seedling Seed Orchard (SSO), Pleihari. A total of 10 families with 3 individual trees f...

Alkaline pulping is the dominant chemical pulping process today, but it has some serious shortcomings : air and water pollution and the high investment costs. In recent years, the search for pulping processes has led to the development of several organosolv methods capable of producing pulps with properties near those of kraft pulps. In this study,...

Leda (Eucalyptus deglupta) merupakan salah satu jenis tanaman Hutan Tanaman Industri yang dipersiapkan untuk pulp dan kertas. Untuk memperoleh nilai yang lebih dari tanaman ini maka perlu dimanfaatkan bagian selain kayunya dalam hal ini adalah daunnya yang mengandung minyak atsiri. Penelitian ini selain bertujuan untuk mengetahui rendemen dan kuali...

Nilotika, which grows in great numbers at Baluran National Park, Situbondo regency, is a kind of fast growing species and can grow fast naturally covering a large area. Due to the unchecked growth of its seedlings, it is disliked by the management of the park. Therefore, the numbers of these plants allowed to grow will be decreased and eliminated a...

Plantation-grown trees of mahogany (Swietenia macrohphylla King) in Java were pin-marked monthly from August to December in 1996 and sampled on August 7, 1997. Pin-markings were also executed weekly in July, 1997. Axial parenchyma in marginal bands is of 3--6 cell wide, occasionally associated with vessels inside and with conspicuously narrower ves...

農林水産研究情報センターで作成したPDFファイルを使用している。 6･1･5･1　はじめに : JIS Z2117 : 木材のかたさ試験に準じたブリネルかたさ試験を行った。かたさは強さと並んで加工適性につながる材質評価の指標となりうる重要なものである。また現場における適用も可能な簡易な試験であり今後のデーターの集積が望まれるものである。　　 6･1･5･2　測定方法 : 試験は生材、気乾材および生材を煮沸処理した煮沸材で行なった。煮沸処理は試験片にしてから4時間行い、その後水中で冷却後湿潤状態で試験を行った。 　使用した樹種は7船を中心としたものである。まず樹心部および樹皮部になるべく近い部分をとり、その間を4～5分して、4～5ヶの試験片をとり、樹幹内におけるかたさ分布を求められるようにした...

農林水産研究情報センターで作成したPDFファイルを使用している。 Studies on the Bonding of Some Togian Wood : Introduction : The increase of the need of wood in the world consumption has led technologists to develop any possible process in wood utilization and to use lesser known species. Bonding a kind of wood is one of the example. The advantages of bonding a wood are many and...

農林水産研究情報センターで作成したPDFファイルを使用している。 名古屋大学農学部演習林報告. v.9, 1987, p.51-77

Forest is a very important natural resource not only because of its various functions, but also because of the great challenge and opportunity it offers to mankind. Although it is a renewable resource, its sustainability and functions require wise and sound management. Forest goods in Asia range from wood to non-wood forest products (NWFPs). Forest...