caa a22 4500 378892002 CHVBK 20180305123457.0 cr unu---uuuuu 161128e20040315xx s 000 0 eng 10.1515/HF.2004.024 doi (NATIONALLICENCE)gruyter-10.1515/HF.2004.024 Variation in microfibril angle in Eucalyptus clones [Elektronische Daten] [J. T. Lima, M. C. Breese, C. M. Cahalan] The microfibril angle of the S2 layer in wood fibres is an ultra-microscopical feature that influences important properties affecting the utilisation of timber. However, this characteristic is as yet little studied, and this is especially true of the genus Eucalyptus. The microfibril angle of the S2 layer of the secondary wall was measured in fibres taken from eight-year-old trees of 11 Eucalyptus clones growing in four sites in Brazil. The overall mean microfibril angle measured was 8.8°. While the angle seemed to decrease slightly from pith to bark in a non-linear fashion, this decrease was not statistically significant. The microfibril angle showed statistically significant differences between sites and between clones, although the broad sense heritability of the microfibril angel was low (h2=0.293). Various theories attempt to explain the microfibril orientation, but we conclude that environmental stresses play an important role in defining the angle in Eucalyptus wood. Copyright © 2004 by Walter de Gruyter GmbH & Co. KG Timber & wood processing nationallicence Biotechnology nationallicence Materials science nationallicence Lima J. T. aut Breese M. C. aut Cahalan C. M. aut Holzforschung Walter de Gruyter 58/2(2004-03-15), 160-166 0018-3830 58:2<160 2004 58 hfsg https://doi.org/10.1515/HF.2004.024 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1515/HF.2004.024 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lima J. T. aut NATIONALLICENCE 700 1- Breese M. C. aut NATIONALLICENCE 700 1- Cahalan C. M. aut NATIONALLICENCE 773 0- Holzforschung Walter de Gruyter 58/2(2004-03-15), 160-166 0018-3830 58:2<160 2004 58 hfsg CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter