Table 5. Loadings of the variables in the extracted components.

F1 / F2 / F3 / F4 / F5 / F6 / F7 / F8 / F9 / F10 / F11
CAFF AC / 0.156 / 6.092 / 4.269 / 4.525 / 14.983 / 12.106 / 12.439 / 0.884 / 8.827 / 0.556 / 7.273
COUM AC / 2.433 / 9.732 / 0.085 / 2.533 / 0.126 / 14.507 / 14.257 / 2.153 / 7.459 / 2.076 / 21.859
GALL AC / 2.721 / 3.585 / 2.282 / 4.372 / 16.472 / 1.934 / 9.199 / 4.259 / 1.074 / 32.348 / 1.526
DP 3 GLU / 7.619 / 0.995 / 5.864 / 0.019 / 0.003 / 0.030 / 0.735 / 1.502 / 10.026 / 2.123 / 7.052
CYA 3 GLU / 2.828 / 0.821 / 17.190 / 1.197 / 0.574 / 0.508 / 0.011 / 4.120 / 1.540 / 2.443 / 7.342
PET 3 GLU / 9.046 / 0.011 / 1.796 / 3.520 / 0.128 / 0.563 / 0.039 / 1.027 / 6.628 / 0.442 / 0.828
PEON 3 GLU / 0.013 / 1.492 / 0.954 / 29.020 / 7.054 / 15.682 / 1.058 / 0.310 / 2.932 / 0.010 / 0.002
MALV 3 GLU / 8.453 / 0.445 / 3.537 / 0.529 / 0.444 / 4.845 / 3.997 / 0.018 / 0.824 / 0.031 / 1.005
DP 6II ACE / 9.109 / 0.082 / 0.049 / 0.010 / 3.333 / 5.456 / 7.786 / 6.588 / 0.142 / 12.447 / 7.695
CYA 6II ACE / 7.710 / 3.695 / 0.025 / 0.041 / 2.596 / 1.801 / 1.777 / 2.374 / 9.298 / 0.303 / 2.520
PET 6II ACE / 8.529 / 3.285 / 0.194 / 0.020 / 0.030 / 1.451 / 0.003 / 1.055 / 4.427 / 5.644 / 0.643
PEON 6II ACE / 8.687 / 1.924 / 1.294 / 0.911 / 0.233 / 0.936 / 1.626 / 1.275 / 0.394 / 0.161 / 6.134
MALV 6II ACE / 4.546 / 8.616 / 0.533 / 1.056 / 0.615 / 5.228 / 2.134 / 0.646 / 3.162 / 0.450 / 2.220
PN 6II COUM / 1.770 / 12.387 / 0.137 / 2.591 / 0.270 / 3.198 / 4.909 / 8.089 / 0.698 / 4.765 / 15.164
MV 6II COUM / 8.423 / 0.086 / 0.203 / 2.068 / 4.113 / 0.104 / 0.309 / 23.107 / 10.641 / 6.642 / 0.030
CI / 0.419 / 13.366 / 3.979 / 1.253 / 0.011 / 0.003 / 2.223 / 6.240 / 5.477 / 1.342 / 0.006
HUE / 3.906 / 7.655 / 4.410 / 0.002 / 1.723 / 1.544 / 2.275 / 0.157 / 0.628 / 1.540 / 0.014
d420 (%) / 4.532 / 7.573 / 2.182 / 0.463 / 2.545 / 0.634 / 4.324 / 0.009 / 0.197 / 3.596 / 0.033
d520 (%) / 3.435 / 6.682 / 6.382 / 0.806 / 2.265 / 2.782 / 0.125 / 0.794 / 0.338 / 0.236 / 0.053
d620 (%) / 0.004 / 0.370 / 12.068 / 16.800 / 0.138 / 7.389 / 15.704 / 7.230 / 0.306 / 9.996 / 0.043
TP / 0.022 / 0.011 / 6.530 / 11.019 / 23.722 / 8.513 / 2.905 / 14.755 / 2.642 / 5.315 / 0.000
A / 3.385 / 8.201 / 2.425 / 0.529 / 1.378 / 5.130 / 10.085 / 8.611 / 1.499 / 2.084 / 1.113
TAN / 0.606 / 1.447 / 21.743 / 0.009 / 1.570 / 0.860 / 1.697 / 0.006 / 13.933 / 0.748 / 15.713
VRF / 1.648 / 1.447 / 1.869 / 16.708 / 15.676 / 4.794 / 0.384 / 4.790 / 6.905 / 4.702 / 1.733
% of variance / 38.415 / 23.285 / 15.367 / 9.624 / 6.793 / 2.269 / 1.883 / 1.353 / 0.536 / 0.352 / 0.122

Table 6. Loadings of the samples in the extracted components

F1 / F2 / F3 / F4 / F5 / F6 / F7 / F8 / F9 / F10 / F11
P bot / -5.312 / -0.783 / -1.205 / 2.776 / 0.542 / 1.059 / 0.702 / -0.305 / 0.097 / -0.039 / 0.107
P aged oak / -1.313 / 1.559 / 2.210 / 1.968 / -1.267 / -1.772 / 0.472 / 0.025 / -0.025 / -0.100 / -0.013
P new oak / -1.779 / 1.190 / 0.970 / -0.140 / -2.181 / 0.916 / -1.050 / 0.355 / -0.571 / -0.158 / -0.029
P chest / -2.844 / 2.737 / 1.615 / -1.523 / 0.101 / 0.314 / -0.109 / 0.435 / 0.665 / 0.477 / -0.068
M bot / -1.722 / -3.137 / -4.419 / -0.467 / -0.595 / -0.799 / -0.388 / 0.588 / 0.126 / 0.053 / -0.131
M aged oak / 3.754 / 1.027 / -0.661 / 1.415 / 0.356 / 0.187 / -0.458 / -1.020 / -0.018 / 0.234 / -0.335
M new oak / 2.806 / 1.726 / -0.211 / 0.313 / 1.206 / 0.155 / -0.495 / 0.357 / 0.496 / -0.697 / 0.034
M chest / 2.050 / 2.160 / -1.000 / 0.521 / 2.082 / -0.321 / -0.202 / 0.532 / -0.537 / 0.348 / 0.232
CS bot / -0.590 / -5.558 / 3.537 / -0.418 / 1.552 / -0.097 / -0.413 / -0.027 / -0.089 / 0.001 / -0.028
CS aged oak / 6.250 / -2.095 / 0.284 / 0.213 / -1.802 / 0.611 / 0.913 / 0.373 / 0.164 / 0.156 / 0.120
CS new oak / -0.500 / 0.044 / -0.829 / -2.070 / -0.695 / -0.369 / -0.328 / -1.244 / 0.105 / -0.029 / 0.311
CS chest / -0.801 / 1.131 / -0.292 / -2.588 / 0.701 / 0.116 / 1.356 / -0.068 / -0.412 / -0.249 / -0.197

Fig. 6 Dendogram of the cluster analysis.