Hygienic characteristics of radishes grown in soil contaminated with Stenotrophomonas maltophilia

Chemical and Biological Technologies in Agriculture

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

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

Values in italic within the same factor indicate the variable with the largest correlation