Kajian ke atas Biojisim dan kualiti kayu bagi tiga spesies cepat tumbuh hutan sekunder: Dyera polyphylla (Miq.) Ashton (Jelutong Paya), Duabanga moluccana Bi. (sawih) dan Endospermum diadenum (Miq.) airy shaw (Terbulan)

Study on biomass allocation and wood quality for three fast growing species viz. Dyera polyphylla (Miq.) Ashton (Jelutong Paya), Duabanga moluccana Bf. (Sawih) and Endospermum diadenum (Miq.) Airy Shaw (Terbulan) was conducted. There is lack information in variation of anatomy, physical and mecha...

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Main Author:	Siti Nurasmah, Abu Samat
Format:	Thesis
Language:	English
Published:	2013
Subjects:	GE Environmental Sciences QD Chemistry
Online Access:	http://ir.unimas.my/id/eprint/12588/1/Siti%20Nurasmah.pdf
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id	my-unimas-ir.12588
record_format	uketd_dc
spelling	my-unimas-ir.125882023-08-04T02:17:33Z Kajian ke atas Biojisim dan kualiti kayu bagi tiga spesies cepat tumbuh hutan sekunder: Dyera polyphylla (Miq.) Ashton (Jelutong Paya), Duabanga moluccana Bi. (sawih) dan Endospermum diadenum (Miq.) airy shaw (Terbulan) 2013 Siti Nurasmah, Abu Samat GE Environmental Sciences QD Chemistry Study on biomass allocation and wood quality for three fast growing species viz. Dyera polyphylla (Miq.) Ashton (Jelutong Paya), Duabanga moluccana Bf. (Sawih) and Endospermum diadenum (Miq.) Airy Shaw (Terbulan) was conducted. There is lack information in variation of anatomy, physical and mechanical properties of the species. The biomass of stem section contributed the highest among the three species. There were linear relationships oftotal biomass of whole trees and stem biomass against diameter breast height (DBH (em)) in each specie However, negative relationships were obtained for tree height and biomass of branch section against DBH Sawih had shortest fibrous xylem, lowest diameter offibrous xylem, lumen and thinnest xylem as compare to those from Jelutong paya and Terbulan. Terbulan had the longest fiber whilst Jelutong paya had highest diameter of both fiber and lumen with thickest fiber as compare to those from Sawih and Terbulan. Terbulan has highest specific gravity (SG) compare with the other two species. Moisture content (MC) was highest from Sawih. Modulus ofelasticity (MOE) and modulus ofrupture (MOR)from Terbulan were highest with the value of55.85 MPa and 6294 MPa respectively. Variations ofanatomical characteristics from the three species did not reveal obvious difference although significant differences occurred both radial and vertical forms. Both SG and MC did not reveal obvious trend according to its height for Jelutong paya. For Sawih, SG was highest at the height of 70% and in vice versa for Terbulan. MOE and MOR were 'not significantly differed according to tree height. Correlation of anatomical, mechanical and physical characteristics of Jelutong paya demonstrated positive significance between diameter of fiber and lumen, between ray height and MC However, significant negative correlation was obtained for total number ofvessellmm2 and SG. Sawih had diameter offiber had negatively correlated whilst at significant level for number ofvessellmm2, MaR, MOE and SG. Diameter ofboth fiber and lumen ofTerbulan achieved high correlation with r= 0.957. Universiti Malaysia Sarawak, (UNIMAS) 2013 Thesis http://ir.unimas.my/id/eprint/12588/ http://ir.unimas.my/id/eprint/12588/1/Siti%20Nurasmah.pdf text en validuser masters Universiti Malaysia Sarawak, (UNIMAS) Faculty of Resource Science and Technology
institution	Universiti Malaysia Sarawak
collection	UNIMAS Institutional Repository
language	English
topic	GE Environmental Sciences QD Chemistry
spellingShingle	GE Environmental Sciences QD Chemistry Siti Nurasmah, Abu Samat Kajian ke atas Biojisim dan kualiti kayu bagi tiga spesies cepat tumbuh hutan sekunder: Dyera polyphylla (Miq.) Ashton (Jelutong Paya), Duabanga moluccana Bi. (sawih) dan Endospermum diadenum (Miq.) airy shaw (Terbulan)
description	Study on biomass allocation and wood quality for three fast growing species viz. Dyera polyphylla (Miq.) Ashton (Jelutong Paya), Duabanga moluccana Bf. (Sawih) and Endospermum diadenum (Miq.) Airy Shaw (Terbulan) was conducted. There is lack information in variation of anatomy, physical and mechanical properties of the species. The biomass of stem section contributed the highest among the three species. There were linear relationships oftotal biomass of whole trees and stem biomass against diameter breast height (DBH (em)) in each specie However, negative relationships were obtained for tree height and biomass of branch section against DBH Sawih had shortest fibrous xylem, lowest diameter offibrous xylem, lumen and thinnest xylem as compare to those from Jelutong paya and Terbulan. Terbulan had the longest fiber whilst Jelutong paya had highest diameter of both fiber and lumen with thickest fiber as compare to those from Sawih and Terbulan. Terbulan has highest specific gravity (SG) compare with the other two species. Moisture content (MC) was highest from Sawih. Modulus ofelasticity (MOE) and modulus ofrupture (MOR)from Terbulan were highest with the value of55.85 MPa and 6294 MPa respectively. Variations ofanatomical characteristics from the three species did not reveal obvious difference although significant differences occurred both radial and vertical forms. Both SG and MC did not reveal obvious trend according to its height for Jelutong paya. For Sawih, SG was highest at the height of 70% and in vice versa for Terbulan. MOE and MOR were 'not significantly differed according to tree height. Correlation of anatomical, mechanical and physical characteristics of Jelutong paya demonstrated positive significance between diameter of fiber and lumen, between ray height and MC However, significant negative correlation was obtained for total number ofvessellmm2 and SG. Sawih had diameter offiber had negatively correlated whilst at significant level for number ofvessellmm2, MaR, MOE and SG. Diameter ofboth fiber and lumen ofTerbulan achieved high correlation with r= 0.957.
format	Thesis
qualification_level	Master's degree
author	Siti Nurasmah, Abu Samat
author_facet	Siti Nurasmah, Abu Samat
author_sort	Siti Nurasmah, Abu Samat
title	Kajian ke atas Biojisim dan kualiti kayu bagi tiga spesies cepat tumbuh hutan sekunder: Dyera polyphylla (Miq.) Ashton (Jelutong Paya), Duabanga moluccana Bi. (sawih) dan Endospermum diadenum (Miq.) airy shaw (Terbulan)
title_short	Kajian ke atas Biojisim dan kualiti kayu bagi tiga spesies cepat tumbuh hutan sekunder: Dyera polyphylla (Miq.) Ashton (Jelutong Paya), Duabanga moluccana Bi. (sawih) dan Endospermum diadenum (Miq.) airy shaw (Terbulan)
title_full	Kajian ke atas Biojisim dan kualiti kayu bagi tiga spesies cepat tumbuh hutan sekunder: Dyera polyphylla (Miq.) Ashton (Jelutong Paya), Duabanga moluccana Bi. (sawih) dan Endospermum diadenum (Miq.) airy shaw (Terbulan)
title_fullStr	Kajian ke atas Biojisim dan kualiti kayu bagi tiga spesies cepat tumbuh hutan sekunder: Dyera polyphylla (Miq.) Ashton (Jelutong Paya), Duabanga moluccana Bi. (sawih) dan Endospermum diadenum (Miq.) airy shaw (Terbulan)
title_full_unstemmed	Kajian ke atas Biojisim dan kualiti kayu bagi tiga spesies cepat tumbuh hutan sekunder: Dyera polyphylla (Miq.) Ashton (Jelutong Paya), Duabanga moluccana Bi. (sawih) dan Endospermum diadenum (Miq.) airy shaw (Terbulan)
title_sort	kajian ke atas biojisim dan kualiti kayu bagi tiga spesies cepat tumbuh hutan sekunder: dyera polyphylla (miq.) ashton (jelutong paya), duabanga moluccana bi. (sawih) dan endospermum diadenum (miq.) airy shaw (terbulan)
granting_institution	Universiti Malaysia Sarawak, (UNIMAS)
granting_department	Faculty of Resource Science and Technology
publishDate	2013
url	http://ir.unimas.my/id/eprint/12588/1/Siti%20Nurasmah.pdf
_version_	1783728108232245248

Kajian ke atas Biojisim dan kualiti kayu bagi tiga spesies cepat tumbuh hutan sekunder: Dyera polyphylla (Miq.) Ashton (Jelutong Paya), Duabanga moluccana Bi. (sawih) dan Endospermum diadenum (Miq.) airy shaw (Terbulan)

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