Anthocephalus chinensis (Lamk) A. Rich. ex Walp
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NO. 91771

Effect of particle size on resin adhesive distribution in particleboard manufacture of 'kaatoan bangkal' (Anthocephalus chinensis (Lam.) Rich. ex Walp.


Eusebio, GA; Generalla, NC
FPRDI (Forest Products Research and Development Institute) Journal 12 (3 & 4): 12-19 (1983)

Abstract:
Samples of 'kaatoan bangkal' (Anthocephalus chinensis) particles were taken before and after gluing at the FPRDI Particle Board Pilot Plant and then screened using Tyler sieves of mesh nos.5, 9, 16, 32, 60 & 115. After screening, 200 counts of particles were taken from each screen fraction and weighed. The dimensions of each wood particles were measured and the total surface area per unit oven-dry weight was computed. Using the operation, the resin content data obtained during the particular plant operation, the resin content per unit area was determined for each screen fraction. Results showed that resin distribution decreased from 0.09 to 0.05 from coarser to the finer particles.

Availability :
Reading Center; Institute of Forestry; Tarlac College of Agriculture; Camiling; Tarlac; Philippines; phone: (63) (45) 9340 216; fax: (63) (45) 9340 216
Email: tca@mozcom.com




NO. 92403

Tree volume, yield and economic rotation of 'kaatoan bangkal' (Anthocephalus chinensis (Lam.) Rich. ex Walp. plantations in Nasipit Lumber Company Tungao, Butuan City


Cacanindin, DC
North Central Mindanao Forest Research Center; Forest Research Institute; DENR; Malaybalay; Bukidnon; Philippines

Sylvatrop 11 (1&2): 35-42 (1986)

Abstract:
The economic rotation of 'kaatoan bangkal' (Anthocephalus chinensis) pulptimber, sawtimber, and combination of pulptimber and sawtimber in Nasipit Lumber Company plantations were determined by the Net Present Value approach at 18% rate of interest. The economic rotations derived were 5 years of pulptimber, and 7 years for the combination of pulptimber and sawtimber in the six accessibility classes and in site indices 12 to 21. The effects of accessibility, site quality and rate of interest on economic rotation were discussed.

Availability :
Ecosystems Research and Development Bureau (ERDB); Forestry Campus; College; Laguna; Philippines; phone: (63) (49) 5363 221; fax: (63) (49) 5363 630
Email: erdb@laguna.net




NO. 37062

Papermaking characteristics of fast-growing species


Escolano, JO
Research Storage and Retrieval System (RETRES) Research Abstracts; Forest Products Research and Development Institute (FPRDI); 1983; Philippines Council for Agriculture, Forestry and Natural Resources Research and Development (PCARRD); Management Information Systems Division (MISD); Project No. 4801-82.02.02; 20 p

Abstract:
The pulping and papermaking characteristics of three fast-growing hardwoods were studied. Moluccan sau (Albizia falcataria) had more than 50% pulp yields using the sulfate process. The pulp yields of 'bagras' (Eucalyptus deglupta) and 'kaatoan bangkal' (Anthocephalus chinensis) fall within the normal range obtained from other Philippine hardwoods studied. Good burst, tensile and folding strength and moderate tearing resistance were obtained from the pulp handsheets of the three species. Based on the chemical, morphological and strength properties, pulp yield and kappa number, these species can be classified as very good materials for pulp and paper using the sulfate process. A good pulp yield of 74.7% was obtained in 'kaatoan bangkal' using the neutral sulfite semichemical process (NSSC) with a chemical charge of 15% Na2S03 and 4% Na2C03. The experimental boards had slightly lower bursting strengths compared to grade-A linearboard. In commercial operation, long fibered pulp can be blended to hardwood pulp to improve the strength properties of the paper.

Availability :
Library; Philippine Council for Agriculture, Forestry and Natural Resources Research and Development (PCARRD); Los Baños; Laguna; Philippines; phone: (63) (49) 5360 014 - 20; fax: (63) (49) 5360 016
Email: pcarrd@pcarrd.dost.gov.ph




NO. 23381

Forester's perception on indigenous species for forest plantations in Sarawak


Kendawang, JJ
Faculty of Forestry; Agricultural University of Malaysia; Serdang; Selangor; Malaysia

National Seminar on Indigenous Species for Forest Plantation Field, Agricultural University of Malaysia, Serdang, Malaysia, 23 - 24 April 1992, p..

Abstract:
Interest in using indigenous species for forest plantation in Sarawak was evident as early as in 1930's when foresters of the early day's established some 19 ha of Shorea plantation in Semengok Forest Reserve. Research on indigenous hardwood species for possible use in large scale forest plantation in Sarawak was intensified in the Second and Third Malaysia plan. Major indigenous plantation species now include Shorea macrophylla, Dryobalanops beccarrii, Durio zibethinus, Anthocephalus chinensis (synonym: Anthocephalus cadamba), Alstonia spp. and Artocarpus integer. The main emphasis in Sarawak now is to plant more indigenous species including high value timber species under its on-going reforestation programme. To date a total of 2,813 ha (or 42.5%) of forest plantation in Sarawak has been planted with indigenous tree species.

Availability :
Forest Research Centre; Wisma Sumber Alam; Jalan Stadium, Petra Jaya, 93660 Kuching, Sarawak, Malaysia; phone: (60) (88) 442 180; fax: (60) (88) 441 377




NO. 22741

Plantation grown tropical timbers. 2. Properties,processing and uses


Haslett, AN; Young, GD; Button, RAJ
Forest Research Institute; Rotorua; New Zealand

Journal of the Tropical Forest Science 3 (3): 229-237 (1991)

Abstract:
Wood properties, timber processing characteristics, and potential timber uses of ten major tropical plantation species had been evaluated at the Forest Research Institute, New Zealand. The difference between short-rotation plantation grown and natural forest timbers, and the implications of these differences to the processor and user were highlighted. The major difficulties associated with plantation-grown timbers were reductions of density, decay resistance, and lower timber recoveries due to growth stress, smaller log size and the higher frequency of knots. Mahogany (Swietenia macrophylla) was thought to have the highest potential for production of high-value decorative timber, and Pinus caribaea var. hondurensis the highest potential for producing utility timbers.

Availability :
Forest Research Institute Malaysia (FRIM), Jalan FRIM, Kepong Karung Berkunci 201, 52109 Kuala Lumpur, Selangor, Malaysia; phone: (60) (3) 627 42633; fax: (60) (3) 627 65531
Email: philip@frim.gov.my




NO. 24514

Conversion of high-value panel products from less-used wood species


Razali, AK; Paridah, MT
Faculty of Forestry; Universiti Putra Malaysia; 43400 UPM Serdang; Selangor; Malaysia

Paper presented at the 11th Malaysian Forestry Conference, Kota Kinabalu, Sabah, 27 July-2 August 1992

Abstract:
A few of the less-used indigenous tropical hardwood species have been investigated for conversion into various panel products by the Forest Products Laboratory of the Faculty of Forestry, Universiti Putra Malaysia. The main objective of the study was to upgrade the use of the less-used or the so-called low-grade species because of their small diameter and lower density. The conversion into composite panel products seemed appropriate since the desired compression ratio (i.e., board density/raw material density) could be obtained resulting in acceptable physical and mechanical board properties. Mallotus macrostachyus (balik angin), Anthocephalus chinensis (kelempayan), Macaranga pruinosa (mahang) and Bombax valetonii (kekabu utan) have been converted into particleboards and/or medium density fibreboards (MDF) with final densities ranging from 400 - 750 kg/m³. Both formaldehyde-based and formaldehyde- free resin adhesives were used as binders. The results obtained after testing the conditioned boards indicated that low to medium density composite boards of high quality could be manufactured with acceptable technical and commercial grades meeting the Japanese Industrial Standards (JIS) for general uses. In addition panels with proper preservative treatments could also be utilised in semi structural applications. Nonetheless it was recommended that water repellents, such as wax emulsion, should be incorporated during the manufacture of the panels to increase their water resistance.

Availability :
Forest Research Institute Malaysia (FRIM), Jalan FRIM, Kepong Karung Berkunci 201, 52109 Kuala Lumpur, Selangor, Malaysia; phone: (60) (3) 627 42633; fax: (60) (3) 627 65531
Email: philip@frim.gov.my




NO. 24934

Production of non-dipterocarp tree crops for Compositae


Jamaluddin, B
Universiti Putra Malaysia; Serdang; Selangor; Malaysia

UPM Research Report 1993

Abstract:
The main objective of this study was to prepare and supply the seed and/or planting materials for forest plantations, mainly of fast-growing non-dipterocarp species which have been proven as good materials for industrial use. Three areas of propagation were searched, namely, via seed, cuttings, and micro-propagation. Preliminary germination studies of 7 species had been conducted thus far, namely, Alstonia angustifolia (pulai), Anthocephalus chinensis (kelampayan), Ceiba pentandra (kekabu), Dyera costulata (jelutong), Endospermum malaccense (sesenduk), Macaranga tanarius (mahang) and Mallotus macrostachys (balik angin). The study attempted to look into seed collections, seed germination behaviour, both in laboratory and nursery conditions, involving standard pretreatments and tissue culture techniques employing plant growth regulators to enhance germination percentage. When there was abundant seed supply, seed storage procedures and screening for best hormonal combination for micropropagation in-vitro would be determined. Kekabu and pulai germinated well in sand and soil mixtures in the nursery. Both recorded more than 90% germination, producing healthy fast-growing seedlings. Sesenduk, mahang and kelampayan seeds showed poor germination. Germination experiments on sesenduk, balik angin, and jelutong were repeated and modified. Seeds of balik angin were found to possess both hard and water-impermeable seed coats. Balik angin needed 3 weeks or more to break its dormancy in natural field conditions. Soil and sand media gave equally good percentage of germination when compared to filter paper. The highest germination rates for seed coat experiments were obtained in the order of dehulled (66%) > nacked seed (35%) > intact seed (15%). Exogenous application of BAP on dehulled seeds was performed at 7 concentration levels. Highest germination percentage was obtained at BAP 4 mg/1 and 5 mg/1 where both recorded 88% germination. Micro-propagation of jelutong from seed explants was attempted and a multiple of five shoots was successfully obtained from the seed explants. Two prototypes of the "Leakey's Propagation Unit", which could cut the cost of micro-propagating/propagating plant materials, were built. Currently, rootings of cuttings and hardening of in-vitro shoots could be performed in this air-tight and water-tight chamber. This technique rendered an expensive misting unit unnecessary, as water was supplied from below. Germination of sesenduk had been attempted using two different sources, namely Air Hitam, Selangor and Kemasul, Pahang. Germination was found to be very poor on all media tested, which confirmed earlier results obtained by other workers. This was amazing as the seed production of this species was abundant but of poor quality. Therefore, study on sesenduk was directed to a different programme, investigating on a cellular level, particularly its reproductive behaviour.

Availability :
Universiti Putra Malaysia [Agricultural University of Malaysia]; 43400 UPM Serdang; Selangor; Malaysia; phone: (60) (3) 894 86101: fax: 60) (3) 894 32514




NO. 37055

Effects of sulfate pulping methods on pulp properties and bleachability


Zerrudo, JV
Research Storage and Retrieval System (RETRES) Research Abstracts; University of the Philippines at Los Baños (UPLB); 1988; Project No. 4801-82-02.01.008; Management Information Systems Division (MISD); Philippines Council for Agriculture, Forestry and Natural Resources Research and Development (PCARRD); 10 p

Abstract:
Five fast-growing hardwoods, namely Eucalyptus deglupta (bagras), Endospermum peltatum (gubas), Anthocephalus chinensis (Kaatoan bangkal), Albizia falcataria (Moluccan sau), and Gmelina arborea (yemane) were pulped by kraft process using 15.6% sodium oxide (Na?O) with a sulfidity of 25.5%. Results showed that fast- growing species obtained yields ranging from 43.46% to 53.10%. Pulps bleached to a brightness using a three-stage CEH (Chlorination, Extraction, Hypochlorite) ranged from 83.3 to 87.1% GE. Among the pulps, 'Kaatoan bangkal' and 'yemane' had the best strength properties and 'bagras' the poorest.

Availability :
Library; Philippine Council for Agriculture, Forestry and Natural Resources Research and Development (PCARRD); Los Baños; Laguna; Philippines; phone: (63) (49) 5360 014 - 20; fax: (63) (49) 5360 016
Email: pcarrd@pcarrd.dost.gov.ph




NO. 37057

Phenology of selected industrial forest plantation species.


Dela Cruz, RE
Research Storage and Retrieval System (RETRES) Research Abstract; University of the Philippines at Los Baños (UPLB); 1984; UPLB - Philippines Council for Agriculture, Forestry and Natural Resources Research and Development (PCARRD) Indusplant Prog. A.1.2; No.4101-78-03.01.001; Management Information Systems Division (MISD); 110 p

Abstract:
A study was carried out on phenology and diameter growth of selected fast-growing tree species in Laguna, Nueva Vizcaya and Abra. Likewise, the annual magnitude and cycle of growth for each species were discussed. In Mt. Makiling, Laguna, relative humidity influenced the diameter growth of 'Kaatoan bangkal' (Anthocephalus chinensis), Moluccan sau (Albizia falcataria), 'gubas' (Endospermum peltatum), and 'yemane' (Gmelina arborea) followed by evaporation and sunshine duration. Rainfall, radiation and air temperature had the least influence factors mentioned affected 'ipil-ipil' (Leucaena leucocephala). Rainfall, evaporation and air temperature affected the growth of 'yemane' and 'Kaaton bangkal' in Diadi, Nueva Vizcaya. Phenological observations in all stations appeared to be timed considerably with weather. The flower bud, flower, and fruit of moluccan sau, 'bagras' (Eucalyptus deglupta), red gum (Eucalyptus camaldulensis) and 'yemane' developed during low rainfall, high solar radiation and sunshine duration. All species flushed and disseminated fruits/seeds before or during the rainy season.

Availability :
Library; Philippine Council for Agriculture, Forestry and Natural Resources Research and Development (PCARRD); Los Baños; Laguna; Philippines; phone: (63) (49) 5360 014 - 20; fax: (63) (49) 5360 016
Email: pcarrd@pcarrd.dost.gov.ph




NO. 103713

Suitability of tree species to the field condition in Sentani, Irian Jaya
Kesesuaian jenis pohon dengan kondisi lapang di Sentani, Irian Jaya

Hendromono; Wilaida, T; Mutiara, T; Sutisna, U
Paratropika 2 (2): 26-39 (1994)

Abstract:
Sentani hill area and the surroundings in Irian Jaya is one of barren areas in Indonesia due to erosion in wet seasons and fires in dry seasons. Reforestation and afforestation are alternatives to improve the ecosystem in this area. A research was conducted to select suitable species for this area and to recommend the next silvicultural actions. A fieldwork was conducted by ground survey and collecting secondary data. The primary data needed were physical and chemical properties of soil, slope, altitude, flora, pests and diseases. The secondary data needed were annual rainfall, number of wet and dry months, relative humidity, ambient temperature, maximum and minimum temperatures. The results showed that the most parts of the area were lacking of nutrients in varying degrees. The promising species for reforestation in the area were Acacia mangium, Anthocephalus chinensis, Calliandra calothyrsus, Cassia siamea, Gliricidia sepium, Intsia bijuga, Octomeles sumatrana, Paraserianthes falcataria, Pterocarpus indicus and Samanea saman. The species recommended for afforestation were Aleurites moluccana, Anacardium occidentale, Artocarpus altilis, Artocarpus heterophyllus, Gnetum gnemon, Parkia speciosa and Pometia pinnata. Planting stocks for reforestation and afforestation should be of high quality and they should be planted at the beginning of the wet season. Plant protection from fire, pests and diseases should be done intensively.

Availability :
Library; Forest and Nature Conservation Research and Development Centre (FRDC); Jl. Gunung Batu No. 5; Bogor 16001; West Java; Indonesia; P.O. Box 165; phone: (62) (251) 315 234, 315 567; fax: (62) (251) 325 111




NO. 90187

Screening of various plant extracts for toxicity to Meloidogyne incognita and Radopholus similis


Guzman, RS; Davide, RG
Philippine Phytopathology 21 (1-2): 54-64 (1985)

Abstract:
Solvent extracts of eight plant species were screened for toxicity against two important nematode species, namely Meloidogyne incognita and Radopholus similis. Most plant extracts showed indications of toxicity against the nematodes in the bioassay and inoculation tests. In some cases, the effects of the extracts on the nematodes were comparable with nematicides like fenamiphos and aldicarb. The crude extracts of Anthocephalus chinensis (kaatoang-bangkal), Eichornia crassipes (water lily) and Allium cepa (onion) gave the best results in the toxicity test against the nematodes. The active nematicidal compounds found in the extracts were identified as a phenolic aldehyde in Anthocephalus chinensis, carboxylic acid in Eichornia crassipes and ketone in the extract of Allium cepa.

Availability :
Main Library, University of the Philippines at Los Baños
Email: vga@library.upb.edu.ph




NO. 103705

The growth of eight species of industrial crops in PT. INHUTANI area I, Gowa, Maros, South Sulawesi
Pertumbuhan 8 (delapan) jenis tanaman industri di lokasi HTI PT.INHUTANI I Gowa-Maros, Sulawesi Selatan

Halidah; Sumardjito, Z
Jurnal Penelitian Kehutanan [Forestry Research Journal] 7 (1): 27-33 (1993)

Abstract:
Some species for forest plantations, namely Acacia mangium, Eucalyptus deglupta, Paraserianthes falcataria and Gmelina arborea, and alternative species i.e. Pterocarpus indicus, Alstonia scholaris, Anthocephalus cadamba and Melia azedarach were tested in PT. Inhutani I area, Gowa district, South Sulawesi. Measurements on the height and diameter growth after 18 months planting showed that the best height growth were achieved by Melia azedarach (3.84 m), Paraserianthes falcataria (3.39 m) and Gmelina arborea (3.10 m), while the best diameter growth was shown by Gmelina arborea (64 mm). Observation will continue to study suitable species based on economic and environmental considerations for the specific site of PT. Inhutani area.

Availability :
Forest Research and Development Centre, Library




NO. 50813

Planting experiments of dipterocarps in East Kalimantan


Priasukmana, S
Forest Research Institute; Samarinda, East Kalimantan, Indonesia

Proceedings of the Fourth Round-Table Conference on Dipterocarps, Bogor, Indonesia, 12-15 December 1989; Soerianegara, I et al. (eds); Bogor, SEAMEO BIOTROP, 1991; BIOTROP Special Publication 41: 417-423 (1991)

Abstract:
Some planting experiments of dipterocarp species were carried out by the Forest Research Institute (FRI) Samarinda in the area damaged by fire and that of industrial forest plantation or 'timber estate'. Enrichment planting with strip-line system was applied in the area damaged by fire, while in the timber estate mixed planting with fast-growing species was used. Two years after planting, the survival rate of Shorea species was low in the area damaged by fire and a little better in the timber estate, while Dryobalanops was better than Shorea sp. This result also showed that Shorea polyandra, Shorea johorensis, Shorea smithiana and Shorea oleosa grew better than the other Shorea species. In these experiments, dipterocarps which are growing under Leucaena leucocephala or Paraserianthes falcataria grew better than those under Eucalyptus and Anthocephalus chinensis. The experiment of planting dipterocarps under rubber trees showed a promising prospect. The problem of mixed planting of dipterocarps with fast-growing species and rubber trees will arise when the time comes to extract the fast-growing species, if the planting space was not designed properly. (Revised author's abstract)

Availability :
SEAMEO BIOTROP Library




NO. 4642

Rehabilitation and utilization of tropical forest fallows and degraded areas in Southeast asia


Sumitro, A
Faculty of Forestry, Gadjah Mada University; Yogyakarta, Indonesia

Proceedings Regional Workshop on Impact of Man's Activities on Tropical Upland Forest Ecosystems, 3-6 February 1986, Universiti Pertanian Malaysia; Yusuf Hadi et al (eds); Serdang, Faculty of Forestry, Universiti Pertanian Malaysia, 1987; p 587 – 614.

Abstract:
Forest disturbances are mostly caused by human interference to the forest in the form of swidden agriculture and logging for commercial demand. Ecological process of deforestation and its subsequent development is actually the underlying phenomenon which determines the resulting relationship between man and the biosphere, including the forest and land. Therefore some understanding about the process is discussed to safeguard the existing forest resources from further deforestation. There are several major perceived management options in rehabilitating and utilizing the tropical forest and degraded areas. The options and the intensity of management inputs or treatments depend upon the objectives of management, condition of the forest, the soil, location and other social and environmental factors. These options are therefore discussed. This paper focuses on issues and problems pertaining to the mentioned options. Analysis is mainly in the biophysical consideration, thus for the time being postponing the economic aspect of rehabilitation and utilization of the forest. (Author's abstract).

Availability :
SEAMEO BIOTROP Library




NO. 51462

Natural forest management in Sarawak: Risks, uncertainties, options and strategies


Bruenig, EF, Lee, HS; Chai, FYC
Forest department Sarawak; Kuching, Sarawak, Malaysia

Forestry and forest products research; Proceedings of the Third Conference, 3-4 October 1995; Vol. 2; Abdul Rashid Ab. Malik et al. (eds); Kuala Lumpur, Forest Research Institute Malaysia, 1996; p 16-35

Abstract:
Heterogeneity of climate, terrain, hydrology and soil, and rapid social and cultural changes condition land and forest use in Sarawak. Processes in the natural and cultural ecosystems are fuzzy and largely unpredictable, including the attitudes of society and individuals toward the forests. Sustainability of conservation and management of the national Permanent Forest Estate (PFE) requires integrated, holistic approaches to forestry development within regional and national development. Sustainability within forest management units requires comprehensive, integrated and reliable data bases and flexible, biocybernetically designed management strategies to cope with the risks and uncertainties attached to all options. Examples are given to illustrate some crucial issues and critical areas of uncertainty. Options and strategies for integrated research and management which are likely to be the least wrong in a word of uncertainty, change and conflict, are indicated. Political strategies must allocate responsibilities realistically and effectively. Management strategies towards sustainability must coordinate and integrate scientific and application-oriented research, and forest conservation and management, jointly by the various forest users and the government. (Authors' abstract)

Availability :
SEAMEO BIOTROP Library




NO. 30305

Activated kaatoan bangkal wood charcoal treatment of sugarcane basi


Laxamana, NB
Forpride Digest 1(1): 19-22(1972)

Availability :
Library; University of the Philippines at Los Banos; College; Laguna




NO. 2457

The prospects of Leucaena leucocephala, Gmelina arborea and Schizolobium sp. as sources of wood for pulp
Prospek pengembangan Leucaena leucocephala (var.K28,K8), Gmelina arborea dan Schizolobium sp. sebagai sumber kayu pulp

Alrasjid, H
Forest Research Institute; Bogor; Indonesia

Berita Selulosa [Cellulose News] 17 (1): 1-6 (1981)

Availability :
Bogor Botanical Gardens; Bogor; Indonesia




NO. 32765

Production of high-alpha (dissolving) pulp from mixed hardwoods (apanit, bagtikan, kaatoan-bangkal and lumbang)


Nicolas, P.M; Bawagan, B.O
Philippine Lumberman 17 (8): 26, 28-29 (1971)

Availability :
Library; University of the Philippines at Los Ba¤os; College; Laguna




NO. 33070

Physico-mechanical properties and possible uses of 11 plantation-grown species in the Philippines


Tamolang, F.B; Rocafort, J.E
FPRDI Journal 16 (1-2): 75-85 (1987)

Availability :
Library; Scientific and Technology Information Institute; Department of Science and Technology; Metro Manila; Philippines




NO. 63509

Effect of forest fire on the biennial species regeneration after fire in the Lempake secondary forest, East Kalimantan
Dampak kebakaran hutan terhadap regenerasi jenis dua tahun setelah kebakaran di hutan sekunder Lempake, Kalimantan Timur

Purwaningsih
Proceedings of the 1st National Seminar of the Basic Biology; Bogor; 1990; p102-107

Availability :
Research and Development Centre for Biology (RDCB); Bogor; Indonesia




NO. 24045

Medium density fibreboard from some lesser known timber species - A preliminary study


Jamaluddin, K; Ashari, AJ; Shaikh Abdul Karim, Y; Mohd Nor, MY
Wood Technology Department, School of Applied Sciences, MARA Institute of Technology; 40450 Shah Alam, Selangor, Malaysia

Proceedings of the National Seminar on Wood Based Panel Products; Forest Research Institute Malaysia (FRIM), Kepong, Selangor, November 23-24, 1992; Mohd Nor Md Yusof et al (eds); Kuala Lumpur, FRIM, 1994, p 88-94

Abstract:
Medium density fibreboards (MDF) were manufactured from 4 lesser-known timber species, namely, 'ludai' (Sapium bacattum), 'kelempayan' (Anthocephalus chinensis), 'mahang' (Macaranga gigantea) and 'perah' (Pimeleodendron griffithinum). All boards were  produced  at  a  target density of  700 kg m³  and   resin contents of 10% and 12%. Boards made from 'ludai' and 'perah' fibres surpassed the requirements of the 300-type MDF as stipulated in JIS-5906 for bending strength and internal bond. However,  boards from 'kelempayan' and 'mahang' failed to  meet   the requirements for internal bond as required in the standards. All boards from the 4 wood species failed in thickness swelling. Of the 4 wood species investigated, 'ludai' and 'perah' (both from the family Euphorbiaceae) were the most promising raw material for the manufacture of MDF.

Availability :
Forest Research Institute Malaysia
Email: philip@frim.gov.my




NO. 24512

Physical properties of planted 'kelempayan' (Anthocephalus chinensis)


Mohd Hamami, S; Ismail, J
Faculty of Forestry, Universiti Putra Malaysia; 43400 Serdang, Selangor, Malaysia

11th. Malaysian Forestry Conference; Kota Kinabalu, Sabah, 27 July-2 August 1992; p ?

Abstract:
Six 'kelempayan' (Anthocephalus chinensis) trees were felled and sampled at three radial positions and at five different height levels to determine the wood specific gravity, green moisture content, and shrinkage properties. Two 2-metre bolts were also obtained to assess their drying characteristics and defects. Variation between and within trees indicated that all properties measured were statistically significant. Overall average specific gravity was 0.36 and there were significant differences between the specific gravities of the three radial positions and height levels. Specific gravities tended to increase from pith outwards and with height. Average green moisture content was about 175% and a reverse trend was obtained; decreasing from pith outwards and with height. The average of tangential, radial, longitudinal and volumetric shrinkages were 6.46%, 3.28%, 0.47% and 9.90%, respectively. Generally, innerwood (near pith) has a higher tangential and longitudinal shrinkage whilst middlewood has the least volumetric shrinkage. No general vertical pattern was observed for all types of shrinkages, although tangential shrinkage appeared to decline with height. Tangential and radial movements (from 17% to 12% moisture contents) were also observed. Tangential movement was found to be about twice that of radial movement, i.e. 1.7% and 0.9%, respectively, and showed no significant difference within and between trees. The average period of drying (in the forced-air dryer) down to 12-14% moisture content was 25 days for the 25 mm thick boards with minimal traces of drying defects such as surface checks, bow, spring and twist.

Availability :
Forest Research Institute Malaysia
Email: philip@frim.gov.my




NO. 92899

Seedling identification of major weeds in plantations of fast growing tree species in Mt. Makiling, Philippines I. Monocotyledons


Escobin, RP
The Philippine Journal of Science 127 (2): 111-131 (1998)

Abstract:
The morphological characters of the seedlings of 11 species under 10 genera and 3 families of major mon °Cotyledonous weeds in plantations of fast growing tree species in Mt. Makiling, Luzon, Philippines were studied. Observations on the external characters were used to describe and distinguish each species for easy recognition in the field. The species exhibited the hypogeal type of germination distinct from the epigeal type exhibited by the dicotyledonous weeds. Characters considered diagnostic for species identification include the mes °Cotyl, cotyledonary stalk, culm or stem and leaf. A seedling key to species identification is presented. Likewise, seedling description and illustration for each species are provided.

Availability :
Philippine Council for Agriculture, Forestry and Natural Resources Research and Development; Library
Email: pcarrd@pcarrd.dost.gov.ph




NO. 91648

RP trees good for stringed musical instruments


Sarian, ZB
Manila Bulletin, January ?: ? (1998)

Abstract:
Trees such as almagica, almon, antipolo, gubas, igem, kaatoan bangkal, kalantas, lamio, lanete, malakavayan, mahogany, mayapis, nangka, teak, tiaong, acacia, banaba, jackfruit are ideal for making stringed musical instruments.

Availability :
Philippine Council for Agriculture, Forestry and Natural Resources Research and Development Library
Email: pcarrd@pcarrd.dost.gov.ph




NO. 91757

Feasibility of utilizing kaatong bangkal [Anthocephalus chinensis (Lam) Rich ex. Walp] in the production of inorganic boards for construction


Mallari, VC; Cabngon, RJ; Pulido, OR; Alonzo, DS; Bello, ED
The Philippine Lumberman 40 (3): 10 (1994)

Abstract:
The suitability of kaataon bangkal as raw material for wood-wall cement board and its manufacturing conditions was studied. Statistical analysis using a three-factor factorial test revealed that a density of 550 kg/m3 and a cement wood ratio of 50: 50 was found superior. Portland cement combined with any of the cement setting accelerators was found more superior than pozzolan cement in all properties considered in the study.

Availability :
Philippine Council for Agriculture, Forestry and Natural Resources Research and Development Library
Email: pcarrd@pcarrd.dost.gov.ph




NO. 94359

Identification of trees in Balara, Diliman, Quezon City


Bejosano, ED; Mendoza, D
Araneta Research Journal 20(3): 217-236(1973)

Abstract:
The report introduced tree species found in Balara, Diliman, Quezon City. The identification of each species presented was based on the gross morpho- logical characters. However at some instances, sap 8 reproductive organs like flowers and fruits are also included. The study identified and prepared a key to the species of all trees found within the Balara compound; gave botanical descriptions of the species including their scientific names, local names and family names; and list the economic uses of trees.

Availability :
Rizal Library; Ateneo de Manila University; Quezon City; Philippines




NO. 93706

Tree volume, yield, economic rotation of kaatoan bangkal (Anthocephalus chinensis (Lam.) Rich ex Walp plantations in Nasipit Lumber Company, Tungao, Butuan City. (Part 2. Yield prediction models)


Cacanindin, DC
Syvatrop 11(1&2): 35-42(1986)

Abstract:
The economic relations of kaatoon bangkal [Anthocephalus chinensis (Lam.) Rich ex Walp] pulp timber, sawtimber and combination of pulptimber and sawtimber in Nasipit Lumber Company plantations were determined by the Net Present Value Approach at 18% rate of interest. Tne economic rotations derived were 5 years for pulptimber and 7 years for the combination of pulptimber and sawtimber in the six accesibility classes and in site indices 12 to 21. The effects of accesibility, site quality and rate of interest on economic rotation are discussed.

Availability :
Ecosystems Research and Development Bureau; Forestry Campus




NO. 95218

NPK fertilizer treatment of potted kaatoan bangkal Anthocephalus chinensis (Lamk.) Rich. ex Walp seedlings


Zabala, NQ; Enalbes, B
Pterocarpus 2(1): 68-75(1976)

Abstract:
Application of 120 kg N/ha, 120 kg P/ha and combined elements of N120P60 and P60K60 significantly increased height growth of 3-week old potted Kaatoan Bangkal (Anthocephalus chinensis (Lamk.) Rich. ex Walp) seedlings grown in a greenhouse. It was concluded that N alone might be sufficient to effect rapid growth but additional F and K fertilizers are necessary to develop vigorous seedlings.

Availability :
Forest Products Research and Development Institute, College of Forestry and Natural Resources, University of the Philippines Los Baños




NO. 95267

Cellulose acetate from kaatoan bangkal (Anthocephalus chinensis Rich ex.Walp.


Bagawan, BO; Villanueva, EP
FORPRIDE Digest 7(4): 56-62(1978)

Abstract:
A cellulose acetate was prepared in laboratory scale from Kaatoan bangkal prehydrolyzed-sulfate pulp, Varying duarations of activation pre-treatment, and esterification were conducted. Cellulose acetates with varying acetyl content and degree of substitution, ranging primary to secondary acetate were obtained. The favorable conditions obtained for rayon, lacquers, films, and plastic grade were 90-minute activation, 30-minute pre-treatment, 360-minute esterification, and 15-hour hydrolysis. The cellulose acetate was white flaky in appearance and soluble in acetone. The yield was 147.92% with an acetyl content of 38.16%, a degree of subtitution of 2.3 and ash content of 0.03%.

Availability :
Forest Products Research and Development Institute, College of Forestry and Natural Resources, University of the Philippines Los Baños




NO. 95288

Bending properties of kaatoan bangkal [Anthocephalus chinensis (Roxb) Miq.(Rub.)]


Mendoza, EU
FORPRIDE Digest 10(3&4): 45-50(1981)

Abstract:
Bending tests were conducted to determine the critical bending radiiof curvature of 2.54-cm and 0.318-cm thick lumber of Kaatoan bangkal. Analysis of results indicated that lumber of the species may be classified "fair" for solid (2.54-cm thick) and "good" for laminated (0.315-cm thick) bending. The bending qualities of Kaatoan bangkal was found to improve by the use of metal-supporting strap and end pressure device.

Availability :
Forest Products Research and Development Institute, College of Forestry and Natural Resources, University of the Philippines Los Baños




NO. 95297

Effect of soil moisture stress on the shoot growth of Anthocephalus chinensis Rich. ex. Walp and Albizia falcataria (L.) Fosb. seedlings


Fernando, ES; Dela Cruz, RE
Pterocarpus 2(1): 65-67(1976)

Abstract:
The effect of soil moisture stress on the growth of seedlings if Kaatoan bangkal, Anthocephalus chinensis Rich ex. Walp, and Moluccan sau, Albizia falcataria (L.) Fosb., was studied. Moluccan sau seedlings exhibited a more rapid rate of shoot growth at 90 percent of field capacity abd Kaatoan bangkal at 70 percent. Inhibition of shoot growth was greater in Moluccan sau than in Kaatoan bangkal under levels of soil moisture stress.

Availability :
Forest Products Research and Development Institute, College of Forestry and Natural Resources, University of the Philippines Los Baños




NO. 95626

Wood anatomical characteristics and density of fast-growing tropical tree species in relation to growth rates


Ohbayashi, H; Shiokura, T
Proceedings;2nd Pacific Regional Anatomy Conference;Forest Products Research and Development Institute (FPRDI), College, Los Baños, Laguna; 15-21October 1989;FPRDI, College, Laguna, Philippines;1989;pp.43-52

Abstract:
Wood anatomical characteristics, density and variations between samples of Anthocephalus chinensis (Lamk.) Rich ex Walp.;Gmelina arborea R. Br. and Eucalyptus saligna Smith with different growth rates but of the same age were examined. Characteristics studied were fiber length, vessel element length, diameter and pore distribution. Fiber length became more or less constant at the distance of 5-9 cm from the pit regardless of species, age and diameter.

Availability :
Forest Products Research and Development Institute, College of Forestry and Natural Resources, University of the Philippines Los Baños




NO. 95702

Rotary veneer cutting of four fast-growing plantation hardwood species


Sicad, ENB
FPRDI Journal 16(1&2): 86-104(1987)

Abstract:
This study dealt on the rotary cutting of four fast-growing plantation hardwood species, namely: Kaatoan bangkal {Anthocephalus chinensis (Lamk.) Rich. ex Walp], giant ipil-ipil [Leucaena leucocephala (Lam.) de Wit], Mollucan sau [Albiazia falcataria (L.) Fosb.] and yemane (Gmelina arborea R.Br.). The effects of nosebar compression (NC), knife angle (KA) and veneer thickness used for evaluation were thickness uniformity, depth of lathe checks (tightness) and surface smoothness. Veneer thickness was found highly significant in relation to the tightness and smoothness and thickness uniformity. Knife angle setting influenced greatly the thickness uniformity of the veneers.

Availability :
Forest Products Research and Development Institute, College of Forestry and Natural Resources, University of the Philippines Los Baños




NO. 95706

Effects of moisture content and monomer mixtures on the polymerization of kaatoan bangkal [Anthocephalus chinensis (Lam.) Rich. ex Walp.] malakauyan (Podocarpus rumphii Blume) and white lauan (Shorea contorta Vid.) for tool handles


Carandang, JP
FPRDI Journal 18(1-4): 88-89(1989)

Abstract:
The effects of moisture content on the reaction of monomer mixtures with three Philippine wood species were studied. Kaatoan bangkal, malakauayan and white lauan dried at two moisture content levels were treated with two varying mixtures of unsaturated polyester and styrene using a heat catalyst method. Benzoyl peroxide at 0.5% by weight was used as the catalyst. A bench-scale impregnating appratus served as the treating chamber. The full-cell process was employed following the ASTM D 1413-61 treatment method. Hardness test was conducted following the ASTM standard. Unimpregnated and impregnated specimens were observed under the scanning electron microscope (SEM). Interpretation and discussion of the data were based on improvement in specific gravity, chemical and polymer loadings and hardness. In kaatoan bangkal, the impregnant was selective in terms of the cellular elements that were penetrated. SEM micrographs of impregnated kaatoan bangkal showed that its vessel elements were filled with the impregnant, while the fibrous elements were not.

Availability :
Forest Products Research and Development Institute, College of Forestry and Natural Resources, University of the Philippines Los Baños




NO. 95778

Various levels of surface resin content: their effect on properties of phenol-formaldehyde-bonded kaatoan bangkal [Anthocephalus chinensis (Lam.) Rich ex Walp.]


Manalo, NN; Pulido, OR
FPRDI Journal 12(3&4): 35-40(1983)

Abstract:
Particle boards were made from Kaatoan bangkal (Anthocephalus chinensis) using phenol formaldehyde as adhesive at 4 resin content (RC) levels. Core RC was fixed at 3% while surface RC varied from 4% to 7% at 1% increment. All boards except those fro screw-holding (SH) and thickness swelling (TS) tests passed the Japanese Industrial Specification (JIS) for Type 150 boards. Screw-holding test passed the JIS for Type 100 but TS failed. Board properties and dimensional stability were noted to improve with a corresponding increase in resin content up to 4.5% RC level only. Regression analysis on the effect of density on board properties is also presented.

Availability :
Forest Products Research and Development Institute, College of Forestry and Natural Resources, University of the Philippines Los Baños




NO. 95779

The effect of particle acidity on the mechanical properties of particleboards


Manalo, NN; Ca¤adido, LS; Pulido, OR
FPRDI Journal 12(3&4): 6-11(1983)

Abstract:
The acidity of Kaataoan Bangkal (Anthocephalus chinensis) chips was adjusted at 4 pH levels (3.5, 4.5, 5.5 and 6.5) by spraying with buffering solutions of 2% sulfuric acid and 5% sodium bicarbonate. The chips were manufactured into particleboards. Their strength properties were determined. Results showed a significant reduction in modulus of rupture when pH was increased from 3.5 to 6.5. The internal bond property increased from pH 3.5 to pH 6.5, but comparison of means by Tukey's test showed no significant change from pH 3.5 to 5.5.

Availability :
Forest Products Research and Development Institute, College of Forestry and Natural Resources, University of the Philippines Los Baños




NO. 95780

Effect of particle size on resin adhesive distribution in particleboard manufacture of kaatoan bangkal [Anthocephalus chinensis (Lam.) Rich. ex. Walp.]


Eusebio, GA; Generalla, NC
FPRDI Journal 12(3&4): 12-19(1983)

Abstract:
Samples of Kaatoan bangkal [Anthocephalus chinensis (Lam.) Rich. ex Walp.] particles were taken before and after gluing at the FPRDI Particleboard pilot Plant and then screened using Tyler sieves of mesh nos. 5, 9, 16, 32, 60 & 115. After screening, 200 counts of particles were taken from each screen fraction and weighed. The dimensions of each wood particles were measured and the total surface area per unit oven-dry weight was computed. Using the evarage resin content data obatined during the particular pilot plant operation, the resin content per unit area was determined for each screen fraction. Results showed that resin distribution decreased from 0.09 to 0.05 from coarser to the finer particles.

Availability :
Forest Products Research and Development Institute, College of Forestry and Natural Resources, University of the Philippines Los Baños




NO. 95824

Reforestation with fast-growing exotics versus rehabilitation of forest ecosystems with nateri tree species in Southeast Asia


Schulte, A
Proceedings; International Conference on Reforestation with Philippine Species for Biodiveristy Protection and Economic Progress; Palo Leyte; 3-6 March 1997; Visayas State College of Agriculture-Deutsche Gesellschaft fur Technische Zusammenarbeit, Applied Tropical Ecology Program; 1997; pp.106-132

Abstract:
Following a theory developed by Ulrich (1987,1992 and 1994) a definition of forest ecoystem is given and explained based on the irreversibility of fluxes. The steady state of a forest ecosystem is defined by equal rates of primary production (photosynthesis) and secondary production (respiration including mineralization. Deviations from steady state can be assessed by measuring input and output of bioelements and changes in biodiversity (Schulte, 1996).|According to this forest ecosystem theory both selective logging and conversion of Dipterocarp forest to plantations are discussed using data from case studies in Southeast Asia. The conversion of natural logged over Dipterocarp forest ecosystems into monocultures of fast-growing tree species cannot be considered a sustainable management for due to nutrient deficiencies often as early as second generation as well as the eradication of species. Under special conditions sustainability might be possible applying selective logging of Dipterocarp forest ecosystems in it's reduced impact form.|Nevertheless the Southeast Asian government establish more than one million ha of planting forest with fast-growing trees per year-manly after conversion of logged over low volumes forests. As a consequence, the chemical and biological soil amelioration, or better ecosystem rehabilitation, on millions of ha will be the main task for forestry in Southeast Asia during the coming decades.|Despite adverse conditions, it has been shown that seedlings of some native tree species can survive and grow fast even on log landings and trails if soil amelioration treatments are used (Nussbaum and Hoe, 1996). In addition, experiments in Kalimantan Indonesia clearly indicate good prospects for enrichment planting of native trees even in heavily logged-over low volume forests (Adjers et al. 1994). With the observed increment of 8-17 m3 ha-1 year-1 and current high prices of "red meranti" timber, rehabilitation seems to be much more profitable than the commonly applied practice of converting low-volume Dipterocarp forest ecosystems to monocultures of fast-growing exotic tree species.|Forest ecosystem rehabilitation experiences with native tree species in Southeast Asia will be presented and summarized in form of a review. Suggestions for generalized rehabilitation management of unproductive wasteland and logged over forests will be discussed.

Availability :
Technology Transfer and Information Division, Department of Environment and Natural Resources




NO. 95872

Physico-mechanical properties and possible uses of eleven plantation-grown timber species in the Philippines


Tamolang, FB; Rocafort, JE
FPRDI Journal 16(1&2): 75-85(1987)

Abstract:
This study presents the indicative average physical and mechanical properties of 11 plantation-grown timber species in the Philippines. The properties were determined from tests on small clear specimens of timber. Properties studied include relative density, shrinkage, bending, shear-parallel-to-grain, compression-parallel-to-grain and compression-perpendicular-to-grain, hardness and toughness. Based on the classification of the species in accordance with the five physico-mechanical property groupings devised by FPRDI, (a) giant ipil-ipil, Benguet pine, big-leafed mahogany, yemane and teak are recommended for medium construction purposes; (b) para-rubber for moderately light construction; and (c) kaatoan bangkal, moluccan sau, gubas, bagras and lumbang for light construction purposes where strength and durability are not critical requirements. The values presented only apply to defect-free materials and care should be taken when they are used for structural design purposes.

Availability :
Forest Products Research and Development Institute, College of Forestry and Natural Resources, University of the Philippines Los Baños




NO. 95903

Germination of kaatoan bangkal seeds as affected by different germination media


Generoso, V
Abstracts of Researches on High Premium and Fast-Growing Species; Forestry Research Institute; 1977; Generalao,ML(compiled by); Philippine Council for Agriculture and Resources Research, Los Baños, Laguna, Philippines; pp.59

Abstract:
The length of germination period and the success in germinating viable kaatoan bangkal seeds depends greatly on the sufficiency of moisture in the germination medium and the kind and textural fineness of the same.|To obtain a short germination period and high germination results, the surface of the germination medium should be kept moist always from the time when the seedlings are already one week old. This can be done by mulching the germination medium which is very advisable, and by often watering through capillary method.|The germination medium should be, as a rule, as fine pr a mixture in equal proportion of fine top soil, and pulverized charcoal and an equal moisture of fine top soil, wood ash, powdered sphagnum moss and pulverized charcoal were observe to be a good germination media. Sphagnum moss was found to be resistant to damping off and it can be used as a germination medium so long as it is well-powedered and alwasy kept mosit during the component of the germination medium because it decreases the acidity of the medium thus favoring the growth of damping off.

Availability :
Ecosystems Research and Development Bureau; Forestry Campus




NO. 95912

Fertilization of nursery raised kaatoan bangkal (Anthocephalus chinensis) seedlings at Magat experimental forest


Magat Forest Station Staff

Abstracts of Researches on High Premium and Fast-Growing Species; Forestry Research Institute; 1977; Generalao,ML(compiled by); Philippine Council for Agriculture and Resources Research, Los Baños, Laguna, Philippines; pp.64

Abstract:
Three blocks 30 x 30 meters were established on level slope and ridge sites. Each was planted with 30 potted seedlings spaced 2 meters apart and simultaneously fertilized with 50, 100, 150 grams of urea (45%N) and 50, 100 and 150 grams of complete fertilizer.|On the 12th monthly inventory survival was 40% for Block II (ridge), 26% ofr Block I (level), and 8% for Block II (slope). Except for the plots treated with 50 grams and 100 grams of urea, fertilizer levels did not produce any significant difference in survival.

Availability :
Ecosystems Research and Development Bureau; Forestry Campus




NO. 95915

Forest studies on kaatoan bangkal (Anthocephalus chinensis (Roxb.) Miq) in plantation in Magat experimental forest


Maun, MM
Abstracts of Researches on High Premium and Fast-Growing Species; Forestry Research Institute; 1977; Generalao,ML(compiled by); Philippine Council for Agriculture and Resources Research, Los Baños, Laguna, Philippines; pp.65

Abstract:
The 69 four-year and 10-month old unburbed trees with single stems produced an average diameter (dbh) of 13.3 cm, total height of 9.6 meters, clear length of 5.4 meters, and total height if 9.6 meters, lenght of 5.4 meters and average clear length vol. of 0.0601 cubic meter. The average annual diameter increment wa 2.6 cm and the average annual height increment was 1.3 meters.|The 77 4-year old sprouts from 27 burned trees produced an average diameter (dbh) of 8.0 cm, average total height of 6.7 meters, average clear length of 4.3 meters, and average clear length vol. of 0.0217 cubic meter. The average annual diameter increment was 2.0 meters. The 27 burned trees with sprouts produced an averaged clear length volume of 0.0618 cubic meter.|Comparing the above average clear length of volume of unburned and burned that produced coppies it showed the possibility and advantage of coppicing the species in plantation. The average of trees with sprouts single stems.

Availability :
Ecosystems Research and Development Bureau; Forestry Campus




NO. 95918

Effect of slopes and spacing on the survival of kaatoan-bangkal in Nueva Vizcaya plantation


Maun, MM; Sazon, AC
Abstracts of Researches on High Premium and Fast-Growing Species; Forestry Research Institute; 1977; Generalao,ML(compiled by); Philippine Council for Agriculture and Resources Research, Los Baños, Laguna, Philippines; pp.67

Abstract:
This study had been conducted to determine the best slope and spacing distance suited to the survival of nursery-raised kaatoan-bangkal seedlings.|The analysis of variance showed that the survival of the seedlings was not significantly affected by spacing. However, the study site was found to affect the survival of the seedlings. Medium to steep slopes were found to inhibit the survival of kaatoan bangkal seedlings.

Availability :
Ecosystems Research and Development Bureau; Forestry Campus




NO. 95926

Alkaline pulping of kaatoan bangkal


Nicolas, PM; Ballon, CH
Abstracts of Researches on High Premium and Fast-Growing Species; Forestry Research Institute; 1977; Generalao,ML(compiled by); Philippine Council for Agriculture and Resources Research, Los Baños, Laguna, Philippines; pp.69

Abstract:
An alkaline pulping study was made on kaatoan bangkal with different cooking liquor, each containing an active alkali about 15.5% and sufficiently varying from 0 to 36.2%. Using the soda process in a liquor-wood ration of 4.1, the pulp yield and permanaganate number were 51.7% and 23.0%, respectively. When a portion of sodium hydroxide in the cooking liquor in the soda process was replaced by sodium sulfide to give sulfidity of 23.9%, the pulp yield and permanganate number decreased to 48.2% and 20.3%, respectively. Increasing the sulfidity to 25.3%, the best quality bleachable pulp from the species was produced at a comparatively high pulp yield of 51.0%. This pulp was comparable to a commercial Western firm and hemlock Kraft pulp from Canada. Further increase in the sulfidity of the cooking liquor did not produce a significant change on the quality of the pulp but decreased the pulp yield and increased in the permanganate number.

Availability :
Ecosystems Research and Development Bureau; Forestry Campus




NO. 95939

The effects of fertilizatin on growth of kaatoan bangkal seedlings


Zabala, NQ; Manapaac, V
Abstracts of Researches on High Premium and Fast-Growing Species; Forestry Research Institute; 1977; Generalao,ML(compiled by); Philippine Council for Agriculture and Resources Research, Los Baños, Laguna, Philippines; pp.76

Abstract:
To test the effect of fertilization on the growth of kaatoan bangkal (Anthocephalus chinensis) seedlings, single element of nitrogen, phosphorus and potassium commercial fertilizers and combined elements of nitrogen and phosphorus fertilizers were applied at different notes to seedlings planted in nursery are Mudspring, Makiling Forest, College, Laguna. The type of soil in the site is clay loam. Addition of single element nitrogen snf phosphorus fertilizers at the rate of 90 and 30 kilograms per hectare, respectively, significantly increased height growth of kaatoan bangkal seedlings, but none of the single element fertilizer treatments gave significant results in increasing diameter growth. The combined nitrogen and phosphorus fertilizers applied at different rates did not significantly affect the growth of kaatoan bangkal seedlings.

Availability :
Ecosystems Research and Development Bureau; Forestry Campus




NO. 95940

Growth and survival of kaatoan bangkal seedlings potted in different size pots in various potting media


Zabala, NQ; Sargento, JO
Abstracts of Researches on High Premium and Fast-Growing Species; Forestry Research Institute; 1977; Generalao,ML(compiled by); Philippine Council for Agriculture and Resources Research, Los Baños, Laguna, Philippines; pp.76

Abstract:
Decomposed sawdust was a very poor medium and should not be used. The best medium was the 1:1 mixture of humus and sand, followed by 1:1 mixture of humus and garden soil in terms of height growth and survival.|The 6" x 9" plastic bag was the best among the three pot size, in terms of height growth and survival. The ideal combination of potting kaatoan bangkal seedling would be 6" x 9" plastic bags as pot-size and 1:1 mixture of humus and sand as potting medium.

Availability :
Ecosystems Research and Development Bureau; Forestry Campus




NO. 25471

Current advances in clonal propagations methods of some indigenous timber species in Sabah (Malaysia)


Monteuuis, O
CIRAD-Foret and Innoprise Corporation Sdn. Bhd. (ICSB) Joint Project; Tawau; Sabah

Proceedings of the Regional Symposium on Recent Advances in Mass Clonal Multiplication of Forest Trees for Plantation Programmes; 1-8 December 1992; Bogor; Indonesia; p168

Abstract:
Octomeles sumatrana, Anthocephalus chinensis and Endospermum peltatum are potentially very attractive light hardwood timber species for South-East from which they originate. Owing to their characteristics, cloning seems obviously the best option for large-scale reforestation operations. The first experiments carried out established the possibility to restore within a short time period the original ability of the mature the selected ortets to be true-to-type propagated through rooted cuttings, providing that suitable methods are used. In this respect, the serial vegetative propagation techniques tested proved to be quite efficient, leading from the second generation of stock plants to scores compatible with mass production of high fidelity cloned rooted cuttings. These results are discussed mostly from a pragmatic point of view in terms of maturation and possible rejuvenation in relation to cloning.

Availability :
Forest Research Institute Malaysia




NO. 96235

Production of particleboard from kaatoan bangkal on a pilot-plant scale


Generalla, NC; Pablo, AA
FORPRIDE Digest 11 (3&4): 31-45 (1982)

Abstract:
This report summarizes technical data on the production of 12.7 mm x 92 cm x 184 cm (1/2 in x 3 ft x 6 ft) Kaatoan bangkal (Anthocephalus chinensis) particleboards at the FPRDI pilot-plant. Raw material requirement, production specifications and actual data, sampling and test methods, product properties and production schedule as per pilot-plant equipment capacities are included.|Product test results indicate increases in the mechnical and physical properties with increasing board density and resin content which magnitudes are expressed by regression equations. At 550 kg/m3 board density and resin contents of 10% for the surface and 7% for the core, average board bending strength was 150 kg/cm2, internal bond strength, 6.3 kg/cm2;face screw-holding strength, 33 kg; and thickness swelling, 20%. At board densities ranging from 550 to 650 kg/m3 and resin contents of 11% for the surface and 6% for the core, board-bending strenth ranged from 170 to 260 kg/mc3 while interna bond increased from 3.5 to 5.5 kg/cm2. All these properties passed the specification set by the Philippine Standards Association (1)2 and other foreign standards. These data confirm earlier laboratory results and infer the technical feasibility of Kaatoan bangakl for particleboard production. The above board properties also indicate the potential of the species for housing and furniture components. However, at this stage of development, production cost has to be stabilized to determine cost of panels for promotion for various uses.

Availability :
Forest Products Research and Development Institute, College of Forestry and Natural Resources, University of the Philippines Los Baños




NO. 96236

Interaction of Anthocephalus chinensis (Lamk.) Rich. Ex Walp and Albiaza falcataria (L.) Fosb.


Zabala, NQ
Pterocarpus 1: 1-5 (1975)

Abstract:
Kaatoan bangkal, Anthocephalus chinensis (Lamk.) Rich ex Walp., and Mollucan-sau, Albiaza falcataria (L.) Fosb., trees were planted in pure and mixed stands to determine differences between mixed and pure stands of the same species in terms of growth and damage by destructive agencies.|Results showed that mixing the two species had no advantage over pure stands of the same species in terms of both volume growth and survival. Insect infestation was very light, and no difference was observed species or between pure and mixed stands. More Mollucan sau were broken and wind-thrown than Kaatoan bangkal trees.

Availability :
Forest Products Research and Development Institute, College of Forestry and Natural Resources, University of the Philippines Los Baños




NO. 96237

Litter weight and soil compaction under stands of Anthocephalus chinensis, Swietenia macrophylla and mixed dipterocarps


Manubag, JM
Pterocarpus 2 (1): 22-25 (1976)

Abstract:
This study was design to determine the weight of litter and understory biomass and the degree of soil compaction under stands of Anthocephalus chinensis, Swietenia macrophylla, and mixed dipterocarp located in the Makiling Forest, College, Laguna.|The Anthocephalus stand yielded the least litter oven-dry weight (23.64 g/dm2) compared with the Swieenia (63.7g/dm2) and mixed dipterocarp (79.9 g/dm2) stands. Soil compaction was greatest (1.10 kg/cm2) under the Anthocephalus stand, followed by the mixed dipterocarp (0.88 kg/cm2) under the Swietenia (0.66 kg/cm2) stands. The study failed to show any relation between soil compaction and weight of litter and understorey vegetation.

Availability :
Forest Products Research and Development Institute, College of Forestry and Natural Resources, University of the Philippines Los Baños




NO. 96238

Surface run-off and sedimentation under Albizia falcataria (L.) Fosb., Anthocephalus chinensis (Lamk.) Rich. ex. Walp dipterocarp and mixed secondary stands


Serrano, RC; Villanueva, TR; SIMS, BD
Pterocarpus 2 (1): 35-46 (1976)

Abstract:
Four stands, Mollucan-sau (Albizia falcataria (L.) Fosb.) Kaatoan bangkal (Anthocephalus chinensis (Lamk.) Rich.ex.Walp), Dipterocarp and mixed secondary forest were compared for surface run-off and sediment yield within a 4-month study period. Mollucan sau was found to be the best protective cover, yielding only 1,044 ml/m2 total run-off and 1.62 gr/m2 sediment yield. It was followed by mixed secondary stand with 3,457 ml/m2 run-off and 19.68 gr/m2 sediment yield, Dipterocarp with 5,192 ml/m2 run-off and 33.75 gr/m2 sediment yield and Kaatoan bangkal with 10,418 ml/m2 run-off and 118.98 gr/m2 sediment yield.

Availability :
Forest Products Research and Development Institute, College of Forestry and Natural Resources, University of the Philippines Los Baños




NO. 96243

Response of Anthocephalus chinensis (Lamk.) Rich. ex. Walp seedlings to nitrogen phosphorus and potassium


Ordinario, FF; Domingo, IR
Pterocarpus 2 (2): 135-152 (1976)

Abstract:
Kaatoan bangkal, Anthocephalus chinensis (Lamk.) Rich. ex. Walp, seedlings were tested for their nutritional requirements for nitrogen, phosphorus and potassium. Nitrogen was varied from O, 1/4, 1/2, standard to twice level of the Hoagland culture solution while all other essential elements were held constant at their standard levels. Phosphorus and potassium were varied in the same levels as nitrogen.|After 6 months, leaf area, fresh and dry weight top-root ratios, dry matter of stem, shoot, and the seedlings as a whole were all reduced by low levels of nitrogen; leaf area and dry weight top-root were reduced by low levels of phosphorus; while low levels of potassium reduced leaf area, fresh weight and dry top-root ratios.|Uniform yellowing of the leaves, purple petioles including the upper portion of main stem, and stunted growth were the conspicious symptoms of nitrogen deficiency were the visible signs of lack of phosphorus. Chlorosis started at the base of the leaves and spread out to the margin. Critical deficiency of potassium was shown by the dark green color of the leaves that developed into chlorosis starting at the margin and spreading inward to the base. Besides, purpling of petioles and wrinkling of the leaf margins occurred.|The levels of foliar nutrients at the incipient stage of deficiency were 3.91;0.19;and 4.19% for nitrogen, phosphorus and potassium, respectively. Plants grown in deficient nitrogen, phosphorus and potassium had 1.63% foliar nitrogen, 0.10 percent foliar phosphorus and 1.58% foliar potassium, respectively, when their symptoms had clearly appeared. Regardless of treatment, foliage nutrient content increased from bassal to top portions of the shoot.

Availability :
Forest Products Research and Development Institute, College of Forestry and Natural Resources, University of the Philippines Los Baños




NO. 73118

Sarcocephalus coadnatus Druce
Gao vang

Vo Van Chi
Nhung cay thuoc thong thuong [The popular medicinal plants]; Dongthap, Dongthap Publishing House, 1988; p 128-129

Abstract:
It is timber tree, high 20m. It is grow in the secondary forest, streamline bank. It is also planted getting wood at Bentre, Dongthap, Haugiang and Angiang. Its bark and root is used for fever. Anthocephalus chinensis can be used as tonic medicine, cough, low temperature. Its fruit: diarrhoea.

Availability :
National Library of Vietnam