Table 1

Correlation matrix of dimensional parameters.

A1 A2 A3 P1 P2 P3 Void Aperic Pc PrThick RoC RoF
A1 1.000
A2 0.991 1.000
A3 0.905 0.923 1.000
P1 0.967 0.950 0.872 1.000
P2 0.968 0.961 0.882 0.989 1.000
P3 0.850 0.860 0.894 0.836 0.835 1.000
Void 0.554 0.538 0.171 0.522 0.528 0.243 1.000
Aperic 0.904 0.839 0.736 0.899 0.868 0.714 0.534 1.000
Pc 0.085 0.102 0.254 0.049 0.075 0.166 -0.294 0.020 1.000
PrThick 0.758 0.668 0.578 0.766 0.707 0.581 0.443 0.953 -0.018 1.000
RoC -0.091 -0.076 0.051 -0.127 -0.102 -0.040 -0.305 -0.130 0.965 -0.142 1.000
RoF -0.238 -0.216 0.152 -0.233 -0.232 0.048 -0.885 -0.278 0.382 -0.267 0.343 1.000

Abbreviations: A1: surface of the achenes, A2: surface delimited by the inner edge of the pericarp, A3: surface of the embryo, P1–3 perimeters, Void: A2 – A3, Aperic: A1 – A2, Pc: length of the contact lines, PrThick: pericarp thickness, RoC: rate of contact Pc/P3, RoF: rate of filling (A2 − A3)/A2.

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