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Official Journal of the Japan Wood Research Society

Table 1 Tukey’s test on veneer density data for beech (Fagus sylvatica L.) and Norway spruce (Picea abies L. Karst) densified veneer samples

From: Effects of an innovative densification process on mechanical and physical properties of beech and Norway spruce veneers

Species Treatment intensity Veneer density mean difference 95% confidence interval P value
Lower bound Upper bound
Beech 90–60 s 205.49 153.99 257.01  < 0.05
300–60 s 208.06 156.55 259.56  < 0.05
Control–60 s 179.44 127.93 230.94  < 0.05
300–90 s 2.56 − 48.95 54.07 0.10
Control–90 s − 26.06 − 77.57 25.44 0.55
Control–300 s − 28.62 − 80.13 22.89 0.47
Norway spruce 60 s–control 80.07 61.99 98.15  < 0.05
90 s–control 97.30 79.22 115.38  < 0.05
300 s–control 66.85 48.77 84.93  < 0.05
480 s–control 65.05 46.97 83.13  < 0.05
90–60 s 17.23 − 0.84 35.31 0.07
300–60 s − 13.22 − 31.30 4.86 0.26
480–60 s − 15.02 − 33.10 3.06 0.15
300–90 s − 30.46 − 48.54 − 12.38  < 0.05
480–90 s − 32.25 − 50.33 − 14.18  < 0.05
480–300 s − 1.80 − 19.88 16.28 0.10