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Official Journal of the Japan Wood Research Society

Journal of Wood Science Cover Image

Table 3 Two-way analysis of variance (ANOVA) for the effects of six landrace provenances and two trial sites on lateral growth, surface-released strain and wood properties averaged in each tested tree

From: Surface growth stress and wood properties of 8-year-old planted Big-leaf mahogany (Swietenia macrophylla King) from different landrace provenances and trial sites in the Philippines

Parameters Source of variance df SS MS Sig. (p-value)
Diameter at breast height (cm) Trial site 1 2966.62 63.15 0.000
Provenance 5 413.62 82.72 0.125
Provenance × trial site 5 425.37 85.07 0.115
Surface release strain (%) Trial site 1 0.00 0.00 0.622
Provenance 5 0.00 0.00 0.436
Provenance × trial site 5 0.00 0.00 0.715
Xylem density (g/cm³) Trial site 1 0.15 0.15 0.000
Provenance 5 0.03 0.01 0.182
Provenance × trial site 5 0.08 0.02 0.004
Fiber length (mm) Trial site 1 0.31 0.31 0.000
Provenance 5 0.24 0.05 0.000
Provenance × trial site 5 0.09 0.02 0.043
Fiber width (mm) Trial site 1 0.00 0.00 0.000
Provenance 5 0.00 0.00 0.000
Provenance × trial site 5 0.00 0.00 0.000
Vessel element length (mm) Trial site 1 0.00 0.00 0.899
Provenance 5 0.04 0.01 0.073
Provenance × trial site 5 0.01 0.00 0.736
Vessel element width (mm) Trial site 1 0.00 0.00 0.688
Provenance 5 0.02 0.00 0.479
Provenance × trial site 5 0.01 0.00 0.580
Microfiber angle (°) Trial site 1 589.18 589.18 0.000
Provenance 5 260.06 52.01 0.062
Provenance × trial site 5 162.80 32.56 0.245