Anatomical Structure and Fibre Quality of Least Known Timbers Belongs to Bignoniaceae from Indonesia

ABSTRACT

Indonesian Xylarium Bogoriense 1915 has approximately 3,667 wood species collections. While, amounting to 3,283 species have been studied on their specific gravity, durability and strength classes. Wood anatomy of 417 genera from 86 families belongs to major, minor, and lesser known timbers of South-East Asia have been compiled and described in 3 volumes of Plant Resources of South East Asia (Prosea) books. To continue the timber classification based on PROSEA trilogy, the rest species, where the properties and anatomical structure of about 800 species from 251 genera of 77 families have never been studied, is termed as The Least Known Timbers. The objectives of this study were to obtain descriptions of anatomical features, assess the quality of fibres for pulp and paper manufacture and evaluate possible utilization based on anatomical characteristics, concerning to five genera of the least known timbers from Family Bignoniaceae, i.e Jacaranda, Millingtonia, Oroxylum, Spathodea, and Tecoma. Samples were taken from Xylarium Bogoriense wood collection, which were collected from various forest areas in Indonesia. Microscopic features observed comprise all features that listed by IAWA Committee in
1989. Fibre quality was determined based on their dimension and evaluated according to quality classification developed by Forestry Engineering and Forest Product Processing Research and Development Centre (FEFPPRDC) Bogor. The results indicated that identification of timber up to genera level is possible. Fibres of Milingtonia hortensis, Oroxylum indicum and Spathodea campanulata could be classified into quality class I, which means good for pulp and paper, whereas fibres of Jacaranda acutifolia and Tecoma capitata fall into class quality II, which indicate moderately good for pulp and paper. As the possible uses, based on the anatomical characters supported by the specific gravity value, Tecoma is suitable for fancy wood substituting such as Ebony and Ulin wood, while Millingtonia, proper for alternating ramin. The descriptions of anatomical features were presented.


Keywords: Wood anatomy, fibre quality, Jacaranda, Milingtonia, Oroxylum, Spathodea, Tecoma, Bignoniaceae

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Judul Seri

Proceeding INAFOR (International Conference Of Indonesia forestry researchers) 2011

No. Panggil

//

Penerbit

: ., 2012

Deskripsi Fisik

2-19

Bahasa

English

ISBN/ISSN

978-979-8452-45-1

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