Growth characteristics, stress-wave velocity, and Pilodyn penetration of 15 clones of 12-year-old Tectona grandis trees planted at two different sites in Indonesia

Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 4 Comparison of mean values for growth characteristics, SWV, and Py between the two clonal test sites

Property	Site				Significance between two sites
	Cepu		Ciamis
	Mean	SD	Mean	SD
D (cm)	16.3	3.6	21.7	5.2	**
H (m)	13.0	2.3	16.6	2.6	**
V (m³)	0.29	0.13	0.51	0.29	**
SWV (km/s)	3.57	0.12	3.52	0.14	ns
Py (mm)	22.0	2.1	22.5	1.3	ns

D stem diameter, H tree height, V bole volume, SWV stress-wave velocity, Py Pilodyn penetration, ns no significance
** Significance at the 1 % level