EcoFoG

 

Tension Wood Diversity

Data

TaxonAnatomic platesG layerFRD TWFRD RWFTD TWFTD RWFMD TWFMD RWFLRD TWFLRD RWFLTD TWFLTD RWFLMD TWFLMD RWRRWT TWRRWT RWTRWT TWTRWT RWRWT TWRWT RWVF TWVF RWVFBT 1VFBT 2VGI TWVGI RWSI TWSI RWVRD TWVRD RWVTD TWVTD RWVS TWVS RW
Carapa procera (Meliaceae) Undetermined000000000000000000005.646.330000000000
Casearia javitensis (Flacourtiaceae) Presence of a G layer22.2422.8822.6824.8722.4623.879.387.939.5410.269.469.090.570.650.530.590.550.623047.88000.450.3611.593.0967.7869.0558.7465.0731993525
Cassipourea guianensis (Rhizophoraceae) Undetermined14.8716.3320.2524.317.5620.311.633.033.415.972.524.50.890.820.830.760.860.796.4418.82001116.21-13.1798.9778.3181.6886.6764105451
Cupania scrobiculata (Sapindaceae) Undetermined19.2518.2818.4620.0118.8619.1467.286.128.786.068.030.690.60.660.560.680.589.2510.23000.510.55-3.62-2.28101.84122.37104.53123.79871712040
Dendrobangia boliviana (Icacinaceae) Undetermined39.5837.9348.0146.2243.7942.076.368.479.58137.9710.730.840.770.80.720.820.745.445.75000.80.764.67-7.84193.3203.57183.29214.072838634837
Duroia eriopila (Rubiaceae) Undetermined21.6217.1818.2519.1119.9418.152.972.262.173.432.572.840.860.870.880.810.870.8417.523.13000.70.7511.5110.1290.2176.8477.8267.6858454311
Eperua falcata (Caesalpiniaceae) Undetermined000000000000000000002.062.030000000000
Eschweilera sagotiana (Lecythidaceae) Special structure12.1714.0514.7115.1713.4414.610.895.591.996.481.446.030.930.610.870.580.90.594.066.25000.60.621.469.18129.19120.36124.33106.021333610469
Goupia glabra (Celastraceae) Undetermined20.1419.7529.325.9824.7222.862.263.846.126.294.195.060.890.810.790.760.840.786.5610.75000.910.8414.985.5136.43107.53115.6899.63126378618
Guatteria schomburgkiana (Annonaceae) Undetermined24.6525.7720.0322.9122.3424.347.5910.156.239.886.9110.010.690.610.690.560.690.592.192.43000.520.630.42-15.44200.85159.41188.26174.693104023805
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Contents

Anatomic criteria can be divided into two classes:

Qualitative criteria

  • Presence of a G layer (or a similar layer) and its aspect.
  • Details on sections made in the G (or similar) layers.

Quantitative criteria

In regular and tension wood (a value for regular wood RW and another for tension wood TW):

  • Vessels radial diameter (VRD), tangential diameter (VTD) and area (VS) of isolated lumens.
  • Vessel frequency (VF), in mm-².
  • Shape index (SI) of isolated vessels, computed by.
    Shape index:
  • Vessels grouping index (VGI): total number of vessels / number of groups.
  • Fibers external radial diameter (FRD) tangential diameter (FTD) and mean diameter (FMD).
  • Fiber lumen external radial diameter (FLRD), tangential diameter (FLTD) and mean diameter (FLMD).
  • Linear ratio of walls in all fibers (RWT), computed by: (FMD - FLMD) / FMD.
  • Linear ratio of walls in radial fibers (RRWT), computed by: (FRD - FLRD) / FRD.
  • Linear ratio of walls in tangential fibers (TRWT), computed by: (FTD - FLTD) / FTD.
  • VFBTi: vessel frequency in each sample (i = 1 or 2) of tension wood in Ruelle (2003).

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Last update on 2/28/2011