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Table 3 Correlation of variables to the factors of the PCA analysis based on factor loadings

From: Hygienic characteristics of radishes grown in soil contaminated with Stenotrophomonas maltophilia

Variable Factor 1 Factor 2 Factor 3 Factor 4
Leaf number −0.236 0.716 0.242 −0.210
Leaf fresh weight 0.809 0.427 0.037 −0.065
Leaf dry matter 0.781 0.422 −0.070 0.082
Leaf area 0.870 0.310 0.072 0.182
Root length −0.773 0.174 0.210 0.457
Root fresh weight −0.772 0.452 0.206 0.017
Root dry matter −0.836 −0.115 0.259 −0.137
Radish fresh weight 0.940 0.173 −0.075 −0.006
Radish dry matter 0.956 0.107 −0.063 −0.050
Radish diameter −0.841 0.430 0.087 0.080
Firmness 0.858 0.242 −0.002 0.073
L* 0.794 −0.518 0.088 −0.128
a* 0.771 −0.398 0.328 0.027
b* 0.506 −0.726 0.397 0.004
SSC −0.282 −0.072 −0.842 −0.338
Nitrate −0.020 −0.229 −0.392 0.817
Ascorbic acid −0.721 −0.411 −0.079 −0.110
Plant WUE 0.939 0.283 −0.066 0.011
  1. Values in italic within the same factor indicate the variable with the largest correlation