Effects of stand density and seedlot on three wood properties of young radiata pine grown at a dry-land site in New Zealand

New Zealand Journal of Forestry Science

Table 5 Analysis of variance values of the F-test statistics and associated probability > F ( p ) values for the effects of the stocking and genetic rating factors on acoustic velocity in the pruned and unpruned experiments

Factor	Test statistic	Experiment and type of tool used
		Pruned			Unpruned
		ST-300	IML hammer	HM-200	ST-300	IML hammer	HM-200
Final stand density (stems ha⁻¹)	F_ndf,ddf	863.61	351.88	120.49	24.27	7.12	20.12
Final stand density (stems ha⁻¹)	p-value	0.001*	0.003*	0.008*	0.013*	0.071	0.017*
Genetic rating	F_ndf,ddf	6.19	1.10	1.46	0.26	0.59	1.90
Genetic rating	p-value	0.131	0.404	0.350	0.645	0.498	0.262

Note: For the stand density, F_ndf,ddf = F_2,2 for the pruned experiment and F_ndf,ddf = F_3,3 for the unpruned experiment. For the genetic-rating factor, the test statistics are F_1,2 and F_1,3 for the two experiments respectively.
*denotes significance at p < 0.05.