Table 1. Physical and mechanical properties of 3 selected Acacia auriculiformis families

Traits Family 3 (n = 9) Family 11 (n = 9) Family 12 (n = 9)
MCg (%) 85.2 (7.3)a 84.0 (11.4)a 68.5 (8.7)b
BD (g/cm3) 0.55 (0.02)a 0.56 (0.03)a 0.61 (0.03)b
RS (%) 2.21 (0.3) 2.21 (0.6) 2.25 (0.2)
TS (%) 3.86 (0.4)ab 3.41 (0.5)abc 3.32 (0.4)bc
LS (%) 0.32 (0.04)b 0.40 (0.06)a 0.34 (0.04)b
T/R ratio 1.80 (0.21) 1.78 (0.68) 1.49 (0.13)
MOE (GPa) 8.40 (1.56)abc 6.90 (1.51)ab 8.64 (1.35)ac
MOR (MPa) 88.6 (12.5) 74.9 (10.7) 88.6 (18.0)
CSpr (MPa) 46.9 (3.7)c 41.3 (2.8)a 53.9 (6.1)b
CSper (MPa) 20.5 (5.4) 19.9 (6.3) 18.7 (3.8)
Value inside the bracket is SD.
Different Alphabet after the values showed significant differences between families.
n: number of sampled trees, MCg: moisture content at green condition, BD: basic density, RS: radial shrinkage, TS: tangential shrinkage, LS: longitudinal shrinkage, T/R Ratio: ratio of RS and TS, MOE: modulus of elasticity, MOR: modulus of rupture, CSpr: compressive strength at parallel to grain, CSper: compressive strength at perpendicular to grain.