Table 1. Eigenvalue, contribution ratio, and principal component load of each principal component in the growth survey of 57 populations in western Kyushu Table 1. Eigenvalue, contribution ratio, and principal component load of each principal component in the growth survey of 57 populations in western Kyushu Table 1. Eigenvalue, contribution ratio, and principal component load of each principal component in the growth survey of 57 populations in western Kyushu Table 1. Eigenvalue, contribution ratio, and principal component load of each principal component in the growth survey of 57 populations in western Kyushu Table 1. Eigenvalue, contribution ratio, and principal component load of each principal component in the growth survey of 57 populations in western Kyushu Table 1. Eigenvalue, contribution ratio, and principal component load of each principal component in the growth survey of 57 populations in western Kyushu
Label Trait Characteristic value Characteristic value Characteristic value Characteristic value
principal component numbers PC 1 PC 2 PC 3 PC 4
Eigenvalue 6.76 4.73 4.10 3.74
Contribution rate (%) 15.03 10.51 9.10 8.31
X1 Length of corolla 0.06 0.35 0.72 -0.16
X2 Width of corolla -0.01 0.10 0.47 0.11
X3 Aspect ratio of corolla (X1 / X2) 0.08 0.16 0.03 -0.23
X4 Length of stamen -0.06 0.03 0.18 0.02
X5 Length of pistil -0.14 0.31 0.69 -0.05
X6 Ratio of stamen / pistil (X4 / X5) 0.13 -0.35 -0.66 0.08
X7 Length of calyx 0.03 0.41 0.42 0.02
X8 Length of peduncle 0.39 -0.13 0.03 0.03
X9 Width of peduncle -0.28 0.17 0.12 -0.01
X10 Number of florets 0.25 0.07 -0.03 0.04
X11 Number of flower clusters -0.19 0.03 -0.12 0.01
X12 Length of flower cluster 0.31 0.10 0.34 -0.02
X13 Width of flower cluster 0.21 0.11 0.45 0.14
X14 Aspect ratio of flower cluster (X12 / X13) 0.33 0.04 -0.02 -0.27
X15 Length of intercluster 0.91 0.19 -0.12 -0.11
X16 Distance from the ground to the first flower cluster 0.86 -0.02 0.17 0.18
X17 Length of spike (X20-X16) 0.43 0.33 -0.13 -0.15
X18 First flowering nodal position 0.09 -0.20 0.80 0.15
X19 Height of plant at flowering 0.83 0.18 0.01 0.16
X20 Height of plant at setting 0.83 0.19 0.03 0.03
X21 Ratio of height of plant at flowering / at setting (X19 / X20) 0.32 0.06 -0.01 0.25
X22 Width of plant 0.32 -0.28 -0.23 0.36
X23 Length of internode 0.91 0.11 -0.06 -0.03
X24 Number of flowering branches -0.09 -0.42 -0.12 0.55
X25 Number of days to flowering 0.06 -0.24 0.85 0.01
X26 Number of flowering period -0.03 -0.16 0.13 0.24
X27 Length of leaf 0.38 0.40 -0.02 0.16
X28 Width of leaf 0.09 -0.02 0.14 -0.04
X29 Aspect ratio of leaf (X27 / X28) 0.12 0.27 -0.15 0.14
X30 Length of leaf stem 0.11 0.00 0.15 0.10
X31 Width of leaf stem -0.06 0.00 0.13 0.01
X32 Number of sawtooth 0.29 0.68 -0.24 0.16
X33 Depth of sawtooth lacinia 0.07 -0.12 -0.07 0.11
X34 Angle of leaf apex -0.07 0.33 0.15 0.02
X35 Angle between main stem and petiole -0.18 -0.47 0.05 0.26
X36 Leaf color (L value) 0.05 -0.23 0.02 0.87
X37 Leaf color (a value) -0.01 0.05 -0.13 -0.90
X38 Leaf color (b value) 0.00 -0.08 -0.12 0.93
X39 Flower color (L value) -0.17 -0.86 -0.05 0.18
X40 Flower color (a value) 0.17 0.81 0.17 -0.20
X41 Flower color (b value) -0.21 -0.79 -0.08 0.24
X42 Width of main stem -0.30 0.41 -0.17 0.03
X43 Ratio of number of columns to height of plant (X20 / X11) 0.83 0.13 0.14 0.02
X44 Ratio of height to first column to length of spike (X17 / X16) -0.43 0.18 -0.27 -0.33
X45 Ratio of number of columns to height to length of spike (X17 / X11 - 1) 0.76 0.39 0.01 -0.19