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Table 7 Factor loadings of the first four rotated principal components

From: Electrical signal of pepper during cropping period affected by different amount of fertilizer

 

PC1

PC2

PC3

PC4

PIES

0.767

0.172

−0.141

−0.026

Stress index

−0.632

0.134

0.306

0.403

Stem extract EC

0.680

−0.054

−0.636

−0.110

Leaf N

0.857

0.102

0.372

0.205

Stem NH4+

0.648

−0.038

0.472

−0.068

Stem NO3

0.550

0.287

0.719

0.045

Soil NH4+

0.475

0.751

−0.243

0.307

Soil NO3

0.643

0.592

0.114

0.163

Yield

0.413

0.077

−0.459

0.634

Fresh weight

0.767

−0.362

−0.271

−0.283

Stem height

0.760

−0.188

0.226

−0.359

Stem diameter

0.745

−0.229

−0.504

−0.266

Chlorophyll a

0.421

−0.667

0.050

0.563

Chlorophyll b

0.473

−0.596

0.071

0.583

Proline

0.520

0.638

−0.001

−0.080

MDA

−0.493

0.363

−0.612

0.207

Variability (%)

39.698

16.386

15.241

10.825

Cumulative %

39.698

56.083

71.325

82.150

  1. Values in bold indicate loadings greater than 0.5