Table 5 Correlation and regression coefficient between traits observed (phenotypic and geometric) and WPA_i at 14 and 28 DAS

Shoot length

90.40

− 3.60

0.951**

− 0.190 ^ns

Root length

− 2.30

− 11.80

− 0.154 ^ns

− 0.344 ^ns

Shoot dry weight

9.60

86.30

0.311 ^ns

0.929**

Root dry weight

34.11

74.40

0.584 ^ns

0.863*

Seed weight with mesocotyl

− 12.00

–

0.732 ^ns

–

Mesocotyl length

− 10.00

–

0.496 ^ns

–

Stem weight

–

82.30

–

0.920**

Tiller number

–

79.80

–

0.970**

Stem thickness

17.70

27.30

0.422 ^ns

0.526 ^ns

Leaf number/plant

30.30

91.20

0.551 ^ns

0.955**

First leaf weight

− 1.20

− 24.10

0.241 ^ns

− 0.491 ^ns

Second leaf weight

40.00

9.60

0.645 ^ns

0.318 ^ns

Third leaf weight

54.90

− 0.01

0.661 ^ns

− 0.001 ^ns

Fourth leaf weight

–

–

–

− 0.503 ^ns

Fifth leaf weight

–

–

–

− 0.188 ^ns

Six leaf weight

–

17.50

–

0.419 ^ns

Seventh leaf weight

–

15.00

–

0.192 ^ns

First leaf length

18.52

5.19

− 0.398 ^ns

− 0.227 ^ns

Second leaf length

21.19

29.26

0.470 ^ns

− 0.538 ^ns

Third leaf length

77.64

38.41

0.892**

− 0.614 ^ns

Fourth leaf length

–

27.67

–

− 0.550 ^ns

Fifth leaf length

–

21.77

–

0.467 ^ns

Sixth leaf length

–

6.80

–

0.374 ^ns

Seventh leaf length

–

5.09

–

0.287 ^ns

First leaf width

0.73

15.89

− 0.074 ^ns

− 0.364 ^ns

Second leaf width

− 6.55

9.74

− 0.367 ^ns

− 0.303 ^ns

Third leaf width

2.33

8.42

0.150 ^ns

− 0.242 ^ns

Fourth leaf width

–

7.99

–

0.290 ^ns

Fifth leaf width

–

2.54

–

0.163 ^ns

Sixth leaf width

–

24.23

–

0.526 ^ns

Seventh leaf width

–

35.33

–

0.634 ^ns

First leaf area

14.26

9.30

− 0.390 ^ns

− 0.305 ^ns

Second leaf area

18.02

24.42

0.400 ^ns

− 0.494 ^ns

Third leaf area

51.29

18.06

0.730 ^ns

− 0.425 ^ns

Fourth leaf area

–

00.75

–

− 0.087 ^ns

Fifth leaf area

–

77.79

–

0.882**

Sixth leaf area

–

53.25

–

0.644 ^ns

Seventh leaf area

–

14.65

–

0.395 ^ns

Stem area

61.33

1.59

0.840**

− 0.126 ^ns

Eccentricity

− 27.30

45.80

0.960**

0.677 ^ns

Convex hull

− 25.20

79.20

0.927**

0.890**

Caliper length

− 48.30

77.60

0.984**

0.881**

Top view area

− 1.90

93.20

0.562 ^ns

0.965**

Compactness

17.60

− 1.00

0.725 ^ns

− 0.101 ^ns