Variation trends of wood property along stem in Salix suchowensis

doi:10.3969/j.issn.1000-2006.2014.05.029

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2014, Vol. 38 ›› Issue (05): 149-152.doi: 10.3969/j.issn.1000-2006.2014.05.029

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Variation trends of wood property along stem in Salix suchowensis

GUO Zengchao, HOU Jing, GUO Wei, YIN Tongming, CHEN Yingnan^*

Key Lab of Forest Genetics and Biotechnology of Ministry of Education, College of Forestry, Nanjing Forestry University, Nanjing 210037, China

Online:2014-10-31 Published:2014-10-31

Abstract

Abstract: The intra-individual variations of the basic density and the contents of main wood chemical compounds, including cellulose, hemicellulose and lignin, along stems of S. suchowensis were measured in this study. Statistical analyses revealed that the basic density and the main wood compounds along the stem varied as following: the wood basic density decreased from stem base to stem top, in range of 0.331 2-0.385 4 g/cm³ for the measured samples. The contents of cellulose, lignin and hemicellulose were in ranges of 48.69%-56.89%,12.58%-16.42%,19.83%-23.76%, respectively, for the measured samples. Contents of cellulose and hemicellulose were found to decrease from stem base to stem top in all the measured samples. By contrast, lignin content exhibited a different variation trendency. For all measured samples, the lowest content appeared in the middle of the stem, and it increased towards both ends, with the highest lignin content appeared at the top of the stem. However, ANOVA statistics indicated that the basic density and the main wood chemical compounds varied insignificantly along the stems within individuals, while they varied significantly among different individuals.

CLC Number:

S781

GUO Zengchao, HOU Jing, GUO Wei, YIN Tongming, CHEN Yingnan. Variation trends of wood property along stem in Salix suchowensis[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2014, 38(05): 149-152.

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Variation trends of wood property along stem in Salix suchowensis

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