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Table 2 Principal component analysis of tested traits of mini Chinese cabbage under four NH4 +:NO3 ratios and normal (200 μmol m−2 s−1) and low (100 μmol m−2 s−1) light fluences

From: Appropriate NH4 +: NO3 ratio improves low light tolerance of mini Chinese cabbage seedlings

Treatments

Principal component scores

General scores

Ranking

Light fluence

NH4 +:NO3

1

2

Normal light fluence

0:100

0.091

−0.329

−0.238

4

10:90

1.502

−0.075

1.427

3

15:85

2.691

0.115

2.806

1

25:75

1.892

0.033

1.925

2

Low light fluence

0:100

−1.829

−0.103

−1.932

7

10:90

−0.751

0.201

−0.55

5

15:85

−1.501

0.104

−1.397

6

25:75

−2.094

0.053

−2.041

8

Eigenvalues

4.87

0.98

-

-

Comulative (%)

81.17

97.50

-

-