Table 5. Average values and coefficient of variation for mechanical properties of 6-year-old Tectona grandis wood from thinning operations in Madre de Dios, Peru

Mechanical properties	Average (6 yr)	Max.	Min.	SD	Coeff. var
Static bending
EFLP (kg/cm2)	427.26	559.86	350.54	75.94	17.77
MOR (kg/cm2)	562.19	668.72	482.10	74.00	13.16
MOE (kg/cm2)	87,410.99	103,326.72	71,890.05	13,737.54	15.72
Parallel to the grain compression
ELP (kg/cm2)	240.87	274.34	198.39	34.36	14.26
RM (kg/cm2)	229.25	299.40	242.04	110.87	48.36
MOE (kg/cm2)	1,471.60	2,098.70	788.60	526.14	35.75
Hardness
Hardness at the ends (kg/cm2)	364.76	392.35	316.75	33.12	9.08
Lateral or side hardness (kg/cm2)	372.00	436.20	298.99	56.27	15.13
Parallel-to-grain shear (kg/cm2)	109.94	121.65	95.90	11.71	10.65

EFLP: fiber stress at the proportional limit, MOR: modulus of rupture, MOE: modulus of elasticity, RM: maximum resistance.