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2 edition of Wood density of Gmelina arborea Roxb. and its biological basis found in the catalog.

Wood density of Gmelina arborea Roxb. and its biological basis

A. E. Akachuku

Wood density of Gmelina arborea Roxb. and its biological basis

by A. E. Akachuku

  • 330 Want to read
  • 15 Currently reading

Published by Faculty of Agriculture & Foresty, University of Ibadan in Ibadan, Nigeria .
Written in English

    Places:
  • Nigeria.,
  • Nigeria
    • Subjects:
    • Gmelina arborea -- Nigeria.,
    • Wood -- Nigeria -- Density.

    • Edition Notes

      Bibliography: p. 22.

      Statementby A.E. Akachuku.
      SeriesAgricultural research bulletin ;, vol. 1, no. 2 (Dec. 1980), Agricultural research bulletin ;, v. 1, no. 2.
      Classifications
      LC ClassificationsSD397.G56 A33 1980
      The Physical Object
      Paginationviii, 29 p. :
      Number of Pages29
      ID Numbers
      Open LibraryOL2317767M
      LC Control Number86199270

      Reynolds and Lawson () concluded that the heating value of Gmelina wood was less than that from the local eucalypts. Although the calorific values of the samples studied were almost identical ( mcal/kg and respectively), the DM contents were 45 and 56%. The study evaluated the kiln drying of mm thick Gmelina arborea Roxb. lumber using conditions based on changing shrinkage rates following the procedure developed by Fuller under US Patent No. 5,, dated 23 February

      Espesye sa tanom nga bulak ang Gmelina ning gihulagway ni William Gmelina arborea sakop sa kahenera nga Gmelina sa kabanay nga Lamiaceae. Pagka karon wala pay siak nga nalista ubos niini niya. Ang mga gi basihan niini. ; Gikan sa gawas nga tinubdanDivision: Tracheophyta. Scaling up of Ghamar (Gmelina arborea Roxb.) based agroforestry in India has a prime concern as it is a native species which has potential to replace and act as a substitute for other exotic timber trees in the country. Gmelina is gaining momentum at the present time; besides fulfilling the demand of wood and timber in the current scenario of industrial agroforestry and also fulfilling other Cited by: 1.

      Gmelina arborea Roxb. Taxonomic Serial No.: (Download Help) Gmelina L. Species: Gmelina arborea Roxb. – gumhar the Flora of North America Expertise Network, in connection with an update for USDA PLANTS () Reference for: Gmelina arborea: Source: The PLANTS Database, database (version ) Acquired: Biological classification: Species. A large deciduous tree to 30 m high, trunk straight to 4∙5 m girth, bole clear to 15 m in old trees (1) bearing a spreading crown, native of Burma, India and Ceylon, and introduced to West tree has been brought to the Region as a valuable timbe.


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Wood density of Gmelina arborea Roxb. and its biological basis by A. E. Akachuku Download PDF EPUB FB2

More than 60 Gmelina arborea provenance trials were established in the mid-seventies as a joint effort between 20 countries, mainly outside the natural distribution areas of gmelina.

Results from 27 of these trials are presented in this article focusing on differences between seed sources in growth rate, bole quality and wood density.

arborea, samples of a year-old G. arborea wood were used to determine the wood density (WD) and the coefficient of variation (CV).G arborea has WD of ±kg/m 3 and CV of % which is close to that of C.

Wood density and fiber dimensions of "Gmelina arborea" in fast growth trees in Costa Rica: relation to the growth rate Article (PDF Available) December with 1, Reads How we measure 'reads'.

Biological Science. Volume 15 Issue 4 Version Year Type: Double Blind Peer Reviewed International Research Journal Publisher: Global Journals Inc. (USA) Online ISSN: & Print ISSN: Gmelina Arborea Roxb: Associated Mycoflora nd Diseases a n i Cross River State, Nigeria.

By Umana, E. J, Akwaji, P. I., Markson, Size: KB. Abstract. Gmelina arborea (Family: Verbenaceae) is considered as a useful multi-purpose species.

The wood of Gmelina is used as raw material for cellulose, and it has received attention as a source of good quality pulp, medium density fiberboard and plywood because of its beautiful white color and stronger fiber.

The aim of this study was to determine the fiber dimensions of Author: J. Soosai Raj, A. Mayavel, V. Mutharaian, A. Nicodemus. The densities of Gmelina arborea and Leucaena Leucocephala were kg/m 3 and kg/m 3 respectively.

Modulus of Rupture (MOR) The mean values for MOR ranged from N/mm 2 to N/mm for Gmelina arborea and N/mm 2 to N/mm 2 for Leucaena Leucocephala. Wood density has effect on the reactions of boards to bending test. Gambhari (Gmelina arborea) - Practical Uses, Benefits and Dosage Description of Plant.

Gmelina arborea is a deciduous trees that attains height up to 20 meters. The bark is grayish white colored, which exfoliates in thin flakes. The leaves are simple, opposite and heart shaped tapering towards the apex with length of cm and breadth of 8.

Plant Description: Gmelina arborea is a medium-sized tree up to 60 feet high with tomentose branchlets. Leaves: inch long, broadly ovate, acuminate, entire ; upper surface glabrous when mature, lower persistently clothed with fulvous stellate hairs, base cordate or truncate and shortly cuncate; petioles inch long, cylindric, puberulous.

~ ~ Journal of Pharmacognosy and Phytochemistry Fig 1: Gmelina arborea Roxb. Flower Fig 2: Gmelina arborea (Drupes) Fig 3: Gmelina arborea 8.

Part Used - Root, bark, leaf, flower, and fruit [1]. Rasa Panchaka Rasa panchaka of different parts of Gambhari according to various Nighantus are enlisted in the Tables (Table 4, 5)File Size: KB. In response to this, the study investigated the suitability of one exotic white coloured wood species (Gmelina arborea), one indigenous white coloured wood species (Vitex doniana) and one.

A beautiful,herbal,flowering wood is very high class and suitable for furniture,having fine whitish colour and fine in forests all over. Gmelina arborea Roxb.

oblique limbs. Stamens are 4 in number and didynamous. Ovary is 4 chambered with one ovule each; style slender ending in a bifid stigma. Fruits are drupe and obovoid in shape, cm long, pericarp leathery, shining yellow outside when dry; endocarp bony, embedded in an aromatic sweetish pulp.

Seeds are 1 or 2,File Size: KB. Gmelina arborea Roxb. is an accepted name This name is the accepted name of a species in the genus Gmelina (family Lamiaceae). The record derives from WCSP (data supplied on ) which reports it as an accepted name (record ) with original publication details: Hort.

Bengal. 46 Lauridsen EB, Kjaer ED, Provenance research in Gmelina arborea Linn., Roxb. A summary of results from three decades of research and a discussion of how to use them.

The International Forestry Review, 4, Lee SS, Goh LK, Seedling diseases of Acacia mangium willd. and Gmelina arborea Roxb.

in forest nursery. Malayan Forester, Wood density of Gmelina arborea Roxb and its biological basis. Agric. Res. Bull., 3: Akachuku, A.E., The possibility of tree selection and breeding for genetic improvement of wood properties of Gmelina arborea.

Wood Sci., Akoun, J., Flora biology of an indigenous potential pulp wood tree species (Sterculia. Gmelina is a fast-growing, unarmed, moderately sized to large deciduous tree with a wide spreading canopy with numerous branches forming a large shady crown.

It can grow from 3 - 30 metres tall, sometimes even taller. Result revealed that mean green specific gravity (ranged from to ) or mean green density kg/cubic meter (ranged from to kg/cubic meter). Mean air dried specific gravity is (ranged from to ), while mean oven dried specific gravity is Author: M.

Lempang, B. Ginoga. Variation in wood specific gravity from the base to the top of tree and from pith to bark was investigated for Gmelina arborea Roxb. plantations in western Venezuela. Increment cores were taken from 30 trees at five different sections up the stem: m, m, 1/2 total height, 3/4 total height and at the stem top (10 cm of diameter).Author: Jesus Alberto Espinoza.

Gmelina arborea is a multipurpose tree species native to Asia. This tree can be propagated by seedlings, rooted cuttings, and grafting. Small tree planting programs with limited budgets tend to propagate by seedlings, and larger or industrial plantation projects with breeding programs propagate by rooted cuttings.

Details about these propagation methods are by: 6. is a platform for academics to share research papers. AbstractGmelina arborea Roxb. (gmelina) was introduced in Costa Rica in the late s. At the present time, gmelina is the most widely planted tree species in Costa Rica.

According to estimations by the Food and Agriculture Organization (FAO), there are ab ha reforested with gmelina in the country.

This forested land has the potential of producing overcubic meters of timber.Study on foliar micro morphology of Gmelina arborea Roxb.: A clonal identification against Craspedonta leayana gave the genus Gmelina as an advanced entity.

Low density of trichome ( ±), presence of short -celled glandular trichome ( ±), thin epidermal cell wall, hypo stomatic leaves industrial wood and has high. The chemical composition of the fruit oil of Gmelina arborea Roxb., Verbenaceae, was examined by capillary gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS).

One hundred components were identified which accounted for Cited by: 3.