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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

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

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) Fndf,ddf 863.61 351.88 120.49 24.27 7.12 20.12
p-value 0.001* 0.003* 0.008* 0.013* 0.071 0.017*
Genetic rating Fndf,ddf 6.19 1.10 1.46 0.26 0.59 1.90
p-value 0.131 0.404 0.350 0.645 0.498 0.262
  1. Note: For the stand density, Fndf,ddf = F2,2 for the pruned experiment and Fndf,ddf = F3,3 for the unpruned experiment. For the genetic-rating factor, the test statistics are F1,2 and F1,3 for the two experiments respectively.
  2. *denotes significance at p < 0.05.