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Journal of Wood Science

Official Journal of the Japan Wood Research Society

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Wood properties of teak (Tectona grandis) from a mature unmanaged stand in East Timor

Journal of Wood Science volume 57, pages 171–178 (2011)Cite this article

Abstract

The wood quality from 50- to 70-year-old Tectona grandis trees from an unmanaged forest in East Timor was assessed. The aim was to evaluate teak in mature stands that had undergone uncontrolled disturbances, e.g., fire and local community usage. Heartwood represented 91% of the tree radius at a height of 1.7 m, and sapwood contained on average nine rings. The mean ring width showed within-tree and between-tree variability. The chemical compositions of heartwood and sapwood were similar. Within-tree chemical variation occurred only in terms of extractives, which increased from the pith (8.3%) to the heartwood-sapwood transition (12.7%) and decreased in the sapwood (9.2%). Overall, the wood properties of teak from a unmanaged forest in East Timor were comparable to those reported for plantation teaks of other origin: 607 kg/m3 basic density, 3.5% and 5.2% radial and tangential shrinkage, 141 N/mm2 modulus of rupture, 10684 N/mm2 modulus of elasticity, and 50 N/mm2 maximum crushing strength in compression parallel to the grain. Disturbances on individual tree growth arising from the unmanaged status of the stand were evidenced by higher within-tree variability of ring width. However, the longitudinal and radial variations of wood density and mechanical properties were of low magnitude and in a degree that did not negatively impact on timber quality.

References

  1. Bhat KM (1998) Properties of fast-grown teak wood: impact on end-user’s requirements. J Trop For Prod 4:1–10

    Google Scholar 

  2. Bhat KM, Ok Ma H (2004) Teak growers unite. Trop For Update 14:3–5

    Google Scholar 

  3. FAO (2005) State of the world’s forests. FAO, Rome

    Google Scholar 

  4. Bhat KM, Priya PB (2004) Influence of provenance variation on wood properties of teak from the Western Ghat region in India. IAWA J 25:273–282

    Article  Google Scholar 

  5. Kokutse AD, Baillères H, Stokes A, Kokou K (2004) Proportion and quality of heartwood in Togolese teak (Tectona grandis L.f.). For Ecol Manag 189:37–48

    Article  Google Scholar 

  6. Kokutse AD, Stokes A, Baillères H, Kokou K, Baudasse C (2006) Decay resistance of Togolese teak (Tectona grandis L.f.) heartwood and relationship with colour. Trees 20:219–223

    Article  Google Scholar 

  7. Moya R (2002) Influence of cambial age, growth rate and precipitation on basic density of teakwood in Costa Rica (in Spanish). Madera Bosques 8:39–49

    Article  Google Scholar 

  8. Pérez LD, Kanninen M (2003) Heartwood, sapwood and bark content, and wood dry density of young and mature teak (Tectona grandis) trees grown in Costa Rica. Silva Fenn 37:45–54

    Google Scholar 

  9. Pérez LD, Kanninen M (2005) Effect of thinning on stem form and wood characteristics of teak (Tectona grandis) in a humid tropical site in Costa Rica. Silva Fenn 39:217–225

    Article  Google Scholar 

  10. Baillères PH, Durand PY (2000) Non-destructive techniques for wood quality assessment of plantation-grown teak. Bois Forêts Trop 263:17–29

    Google Scholar 

  11. Haupt M, Leithoff H, Meier D, Puls J, Richter HG, Faix O (2003) Heartwood extractives and natural durability of plantation-grown teakwood (Tectona grandis L.) — a case study. Holz Roh Werkst 61:473–474

    Article  CAS  Google Scholar 

  12. Windeisen E, Klassen A, Wegener G (2003) On the chemical characterisation of plantation teakwood from Panama. Holz Roh Werkst 61:416–418

    Article  CAS  Google Scholar 

  13. Posch B, Wegener G, Grosser D, Wagner L (2004) Physikalische und mechanische Untersuchungen an Teakholz (Tectona grandis L.f.) aus Plantagen in Panama. Holz Roh Werkst 63:31–35

    Article  Google Scholar 

  14. Okuyama T, Yamamoto H, Wahyudi I, Hadi YS, Bhat KM (2000) Growth stresses and some wood quality attributes in planted teak. In: Proceedings of the XXI IUFRO World Congress. Forests and Society: The Role of the Research. Kuala Lumpur, Malaysia

    Google Scholar 

  15. Knapic S, Tavares F, Pereira H (2006) Heartwood and sapwood variation in Acacia melanoxylon R. Br. trees in Portugal. Forestry 79:371–380

    Article  Google Scholar 

  16. Gominho J, Pereira H (2000) Variability of heartwood content in plantation-grown Eucalyptus globulus Labill. Wood Fiber Sci 32:189–195

    CAS  Google Scholar 

  17. Gominho J, Pereira H (2005) The influence of tree spacing in heartwood content in Eucalyptus globulus Labill. Wood Fiber Sci 37:582–590

    CAS  Google Scholar 

  18. Björklund L (1999) Identifying heartwood-rich stands or stems of Pinus sylvestris by using inventory data. Silva Fenn 33:119–129

    Article  Google Scholar 

  19. Priya PB, Bhat KM (1997). Wood anatomical changes associated with insect defoliation in juvenile teak. IAWA J 18:307–313

    Article  Google Scholar 

  20. Bhat KM, Priya PB, Rugmini P (2001) Characterisation of juvenile wood in teak. Wood Sci Technol 34:517–532

    Article  CAS  Google Scholar 

  21. Kumar ANA, Srinivasa YB, Chauhan SS (2002) Growth rate convergence in teak (Tectona grandis L.). Curr Sci 83:808–809

    Google Scholar 

  22. Thulasidas PK, Bhat KM (2007) Chemical extractive compounds determining the brown-rot decay resistance of teak wood. Holz Roh Werkst 65:121–124

    Article  CAS  Google Scholar 

  23. Fengel D, Wegener G (1984) Wood chemistry, ultrastructure, reactions. Walter de Gruyter, New York

    Google Scholar 

  24. Albert L, Hofmann T, Németh ZI, Rétfalvi T, Koloszár J, Varga S, Csepregi I (2003) Radial variation of total phenol content in beech (Fagus sylvatica L.) wood with and without heartwood. Holz Roh Werkst 61:227–230

    CAS  Google Scholar 

  25. Mayer I, Koch G, Puls J (2006) Topochemical investigations of wood extractives and their influence on colour changes in American black cherry (Prunus serotina Borkh.). Holzforschung 60:589–598

    Article  CAS  Google Scholar 

  26. Hillis WE (1987) Heartwood and exudates. Springer-Verlag, Berlin

    Book  Google Scholar 

  27. Rudman P, Da Costa EWB (1959) Variation in extractive content and decay in the heartwood of Tectona grandis L.f. J Inst Wood Sci 3:33–42

    Google Scholar 

  28. Bhat KM, Thulasidas PK, Maria Florence EJ, Jayaraman K (2005) Wood durability of home-garden teak against brown-rot and white-rot fungi. Trees 19:654–660

    Article  Google Scholar 

  29. Williams RS, Miller R. Gangstad J (2001) Characteristics of ten tropical hardwoods from certified forests in Bolivia. Part I: Weathering characteristics and dimensional change. Wood Fiber Sci 33:618–626

    CAS  Google Scholar 

  30. Bhat KM (2000) Timber quality of teak from managed tropical plantations with special reference to Indian plantations. Bois Forêts Trop 263:6–16

    Google Scholar 

  31. Pérez LD (2005) Stand growth scenarios for Tectona grandis plantations in Costa Rica. Academic dissertation, Faculty of Agriculture and Forestry, University of Helsinki

  32. Moya R, Ledezma VA (2003) Effect of plantation spacing on physical properties of teakwood along the stem (in Spanish). Madera Bosques 9:15–27

    Article  Google Scholar 

  33. Rijsdijk JF, Laming PB (1994) Physical and related properties of 145 timbers. Information for practice. Kluwer Academic, Dordrecht

    Book  Google Scholar 

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Authors and Affiliations

  1. Centro de Estudos Florestais, Instituto Superior de Agronomia, Universidade Técnica de Lisboa, Tapada da Ajuda, 1349-017, Lisboa, Portugal

    Isabel Miranda, Vicelina Sousa & Helena Pereira

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  1. Isabel Miranda
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  2. Vicelina Sousa
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  3. Helena Pereira
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Correspondence to Isabel Miranda.

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Miranda, I., Sousa, V. & Pereira, H. Wood properties of teak (Tectona grandis) from a mature unmanaged stand in East Timor. J Wood Sci 57, 171–178 (2011). https://doi.org/10.1007/s10086-010-1164-8

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  • DOI: https://doi.org/10.1007/s10086-010-1164-8

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