Bangladesh Forest Research Institute

Chittagong, Bangladesh

Bangladesh Forest Research Institute

Chittagong, Bangladesh
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Alam M.J.,Bangladesh Forest Research Institute | Islam S.M.Z.,Bangladesh Forest Research Institute | Motiar Rahman M.,Bangladesh Forest Research Institute
Agriculture and Natural Resources | Year: 2017

This paper presents the results on appropriate cultivation, plantation, production and management techniques of Thysanolaena maxima for domestication at age 1–4 yr (grown 2007–2011). Rhizome cuttings were planted in research experimental plots at spacings of T1 = 1.0 m × 1.0 m, T2 = 1.5 m × 1.5 m and T3 = 2.0 m × 2.0 m in a randomized complete block design with six replications and three treatments. The results showed that the number of panicles produced was 1048, 41,237, 78,737 and 105,094 in year 1 to year 4, respectively. The average total green weight (kg/plot) was 10.26, 632.15, 423.34 and 543.40 and the average dry weight (kg/plot) was 9.88, 287.65, 216.93 and 241.60 in year 1 to year 4, respectively. Composite soil samples were collected and the soil pH values of the surface soil from the different treatments varied from 5.1 to 5.2. There was no significant difference among the treatments in the available P and S. The available Ca, Mg and K were higher in the T3 treatment compared with the other treatments. Planting rhizome cuttings at 2.0 m × 2.0 m spacing gave the maximum broom/panicle production. © 2017 Kasetsart University

Biswas D.,Bangladesh Forest Research Institute | Misbahuddin M.,Bangladesh Forest Research Institute | Roy U.,Bangladesh Forest Research Institute | Francis R.C.,SUNY College of Environmental Science and Forestry | Bose S.K.,SUNY College of Environmental Science and Forestry
Bioresource Technology | Year: 2011

Projected decline in future wood resources has prompted researchers to try various additives in existing pulping processes for fiber yield improvement. Many studies have been conducted in the past aimed at improving kraft pulp yield with the use of additives in the cooking liquor. In this study, the effects of anthraquinone (AQ) and 2-methylanthraquinone (MAQ) on the pulp yield of kadam (Anthocephalus chinensis) were investigated. Three different active alkali doses (14%, 16% and 19% as NaOH) along with 0.1% of AQ or MAQ on chips were used to obtain various levels of delignification of the hardwood. Addition of AQ or MAQ to kraft pulping, increased fiber yield (0.5-2.7% on chips) and improved delignification selectivity (lignin vs. carbohydrate removal). Increases in pulp yield due to AQ or MAQ were more significant at lower doses of active alkalis. The viscosities and the physical strength properties of the pulps with kappa numbers 16-19 were comparable to kraft although there was a minor decrease in tensile strength for the kraft/MAQ pulp. © 2010.

Biswas D.,Bangladesh Forest Research Institute | Kanti Bose S.,New York University | Mozaffar Hossain M.,Chittagong University
International Journal of Adhesion and Adhesives | Year: 2011

Development of value-added products from any unutilized woody or non-woody material can play a vital role in economic development and also in forest resources conservation of any country. In this study, the suitabilities of planer waste and chips of Bambusa balcooa and Bambusa vulgaris, two locally grown bamboo species of Bangladesh, were investigated for the production of particleboard. The planer waste is a kind of shavings obtained during planing operation of bamboo splits for making rectangular strips of uniform thickness. Urea formaldehyde glue was used as a binder. Particleboards (12 mm thickness) were made from each type of the material applying 3.5 N/mm2 pressure at 140 °C press temperature. The panels were tested to determine bending strength, modulus of elasticity, tensile strength, thickness swelling and water absorption. The variation in particle geometry of the raw materials significantly influenced the physical and mechanical properties of particleboard. The chips showed better strength properties compared to planer waste. B. vulgaris produced better and well glued particleboards compared to B. balcooa because of its superior gluability. The product could be used for indoor application especially as furniture component. Further research on the improvement in dimensional stabilization of product is needed. © 2010 Elsevier Ltd. All rights reserved.

Mohiuddin M.,Bangladesh Forest Research Institute | Alam M.K.,Bangladesh Forest Research Institute | Basak S.R.,Bangladesh Forest Research Institute | Kamal Hossain M.,Bangladesh Forest Research Institute | Kamal Hossain M.,Chittagong University
Bangladesh Journal of Plant Taxonomy | Year: 2012

This paper provides ethno-botanical information on 70 plant species under 36 families and these species were in common use among the Bwam, the Marma, the Murang and the Tanchangya communities of Bandarban hill district. Ethno-medicinal uses along with their scientific names, families, local names, voucher numbers and uses are enumerated. Quantitative analysis shows that the Marma tribe uses the higher number of species followed by the Tanchangya, the Murang and the Bwam. Similarity index indicates that the Marma, the Tanchangya and the Murang have higher similarities for ethno-botanical knowledge among four tribes. The most widely used medicinal plants are Cassia obtusifolia L., Centella asiatica (L) Urban., Costus speciosus Smith, Emilia sonchifolia DC., Litsea glutinosa (Lour.) Roxb., Melothria indica Lour. and Premna esculenta Roxb. Fever, cough, menstrual problem, diarrhoea, dysentery, tumor and skin diseases seem to be common problems treated using plants by the tribal communities in Bandarban district. © 2012 Bangladesh Association of Plant Taxonomists.

Miah M.A.Q.,Bangladesh Forest Research Institute
Pakistan Journal of Biological Sciences | Year: 2013

A study of salt tolerance was carried out on germination, survival and height growth performance of important mesophytic species such as Acacia auriculiformis, Acacia hybrid, Artocarpus heterophyllus, Albizia procera, Albizia lebbeck, Acacia nilotica, Achras sapota, Casuarina equisetifolaia, Emblica officinalis, Leucaena leucocephala, Samania saman, Swetenia macrophylla, Terminalia arjuna, Tamarindus indica, Terminalia bellirica and Thespesia populnea in nursery stage using fresh water and salt (NaCl) solutions of 10, 15 and 20 ppm. Effect of salt on germination, survival performance and height growth performance were examined in this condition. Based on the observation, salt tolerance of these species has been determined Acacia auriculiformis, Acacia hybrid, Achras sapota, Casuarina equisetifolia, Leucaena leucocephala and Tamarindus indica has showed the best capacity to perform in different salinity conditions. Acacia nilotica, Emblica officinalis, Thespesia populnea has performed better. Albizia procera, Samania saman and Terminalia bellirica, germination and height performance showed good but when salinity increases survivability were decreases. © 2013 Asian Network for Scientific Information.

Haider M.R.,Bangladesh Forest Research Institute | Khair A.,Jahangirnagar University | Rahman M.M.,Jahangirnagar University | Alam M.K.,Bangladesh Forest Research Institute
Indian Journal of Traditional Knowledge | Year: 2013

The Khasia community, living within reserve forests of Sylhet division mostly in Moulvibazar district. Traditionally they grow betel-leaf on trees which is different from plain land betel-leaf cultivation. Tree based betel-leaf cultivation is a productive and sustainable agroforestry system. Average farm size is about 1.21 hectares per family. The study recorded 86 support tree species in the farm land. Stocking density in the farm land is 1452 trees per hectare excluding seedlings and saplings, with a wide variety of diameter classes. Artocarpus chama and Areca catechu are the most suitable support tree species for betel-leaf farming. Farmers propagates betel vine through stem cutting. June-August is the optimum time for planting betel vine. Support tree pruning and mulching are essential management practices for betel-leaf farming. Leaf rot and stem rot are two common diseases occur in betel-leaf farm. Male members conduct farm activity and harvesting of betel-leaf and the female members operate betle leaf processing and marketing. The state of the art of betel-leaf cultivation as a viable and sustainable farm, lie in its management practices, a skill of the Khasia community. To extend this farming practice one is to understand its cultivation and management practices.

Moula M.G.,Bangladesh Forest Research Institute
Bangladesh Journal of Botany | Year: 2010

Mesophytic species such as Acacia nilotica, Albizia labeck, Albizia procera, Casuarina equisetifolia, Pithocellobium dulche, Samanea saman and Thespesia populnea were raised in the western coast of Char Kashem under Patuakhali district of Bangladesh. After seven years of planting highest survivability was found in A. labeck followed by P. dulche, C. equisetifolia, S. saman, A. procera, A. nilotica and T populnea. The mean maximum diameter at breast height was found in S. saman followed by C. equisetifolia, A. procera, A. labeck, P. dulche, A. nilotica and T. populnea. The maximum plant height was found in C. equisetifolia followed by S. saman, A. procera, T. populnea, A. nilotica, A. labeck and P. dulche indicating suitability of all the seven species for plantation at Char Kashem.

Basak A.C.,Bangladesh Forest Research Institute | Basak S.R.,Bangladesh Forest Research Institute
Journal of Tropical Forest Science | Year: 2011

The fungus Fusarium solani sp. dalbergiae was isolated from infected trees of Dalbergia sissoo. Several efforts of controlling the disease including biological means, both in vitro and in vivo, were tried. It was concluded that the fungus had been successfully destroyed by the two antagonists, Trichoderma viride and T. harzianum. Microscopic studies demonstrated mycoparasitism at different stages of hyphal interaction between the antagonists and the tested fungus. A distinct line of demarcation was produced between them in Petri dishes. In the in vivo tests, seven-month-old seedlings were placed in plastic pots containing soils inoculated with the pathogenic culture. Positive results were obtained in healing the seedlings in the fields. The efficacy of T. viride was superior to T. harzianum. © Forest Research Institute Malaysia.

Basak S.R.,Bangladesh Forest Research Institute | Basak A.C.,International University of Business Agriculture and Technology | Rahman M.A.,International University of Business Agriculture and Technology
Weather and Climate Extremes | Year: 2015

During recent years, the Government of Bangladesh, Non-Government Organizations (NGOs), semi-government organizations, private organizations and individuals have established a large number of plantations under different programs viz. social forestry, agro-forestry and avenue plantations with indigenous and exotic tree species without considering their habit and habitats. Along with the indigenous species like Albizia procera, Albizia lebbeck, Mangifera indica, Azadirachta indica, Gmelina arborea, Trewia nudiflora and Artocapus heterophyllus and many exotic species e.g. Swietenia macrophylla, Albizia saman, Dalbergia sissoo, Eucalyptus camaldulensis, Acacia auriculiformis, Melia sempervirens, Acacia mangium etc. have been planted randomly. With increasing trend of climate-induced floods, millions of trees have been dying due to floods and water-logging. The most affected species are Dalbergia sissoo, Albizia saman, Acacia auriculiformis, Acacia mangium and Artocarpus heterophyllus etc. This situation has caused severe impacts on socio-economic conditions of Bangladesh. The impacts involved a significant loss in terms of investment, biodiversity and afforestation program. Little investigations have been conducted to find out the causes of the deaths and also to find out the suitable adaptation practices to reduce impacts of floods on trees. This synthesis focused on the impacts of floods on plantations and also assessed the potential role of traditional forest management practices in addressing the effects flooding on forests in Bangladesh. The study added important information and revealed knowledge gaps on the causes of large forest deaths. It also provided recommendations for policy on the establishment of frequent floods resilient tree crop plantations. © 2015 The Authors.

Mohiuddin M.,Bangladesh Forest Research Institute | Khairul Alam M.,Bangladesh Forest Research Institute
Indian Journal of Traditional Knowledge | Year: 2011

Chittagong Hill Tracts (CHT) is situated in the Southeast of Bangladesh covering about 10 per cent of the total land. It is the native hoe of 13 tribal communities and these communities have their own traditional knowledge for natural resource managements. This paper provides 8 traditional knowledge namely, folk classification of landform, land use zoning, community reserve for common resource management, fuel wood selection for domestic use, water harvesting ditches, treemanagement in the jhum field by the Murang community, coppice management of Gmelina arborea Roxb. (gamar) and Tectona grandis L. (teak) by the Bwam community, timber harvesting time, keeping bark in teak logs to protect it frominsect and borer attack, and maintenance of vegetation at the catchments areas. The economy, livelihood and culture of the tribal people are closely interlinked with the natural resources. An integrated approach is needed by different institutions for conserving the natural resources in the Chittagong Hill tracts.

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