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Table 1 Descriptive wood properties of the samples tested

From: Elastic constants of green Pinus radiata wood

Property Stiff outerwood Non-stiff outerwood Stiff corewood Non-stiff corewood
Green density (kg m−3) 1143 (3) 1099 (9) 933 (21) 818 (22)
Dry density (kg m−3) 531 (5) 458 (9) 438 (8) 393 (5)
Acoustic velocity (m s−1) 4651 (8) 4221 (26) 4191 (34) 3413 (14)
Number of rings >20 >20 <10 <10
MFA (degrees) 7 (1) 8 (1) 9 (2) 21 (1)
Standard deviation of MFA (degrees) 9 (1) 12 (1) 11 (1) 12 (0)
  1. Mean values of tested wood properties for the sample types. Standard errors are in brackets. The reported standard deviation for the micro-fibril angle (MFA) is the value of the standard deviation parameter fitted to the model used to describe the micro-fibril spread around the mean (Cave and Robinson 1998a; 1998b)