Table 5 Genetic components of variability, genetic advance percentage means and heritability (broad sense) estimates for studied traits across control and salt stress conditions.

From: Investigation of salt tolerance in cotton germplasm by analyzing agro-physiological traits and ERF genes expression

SOV

Treatment

Min

Max

Mean

h2b

GAM

Boll weight (g)

Control

2.0973

4.838

3.4328

30.61

31.39

Stress

0.121

4.129

2.0733

89.86

22.19

Catalase (U/mg protein)

Control

14.05

45.6091

29.5031

84.88

20.77

Stress

16.4609

59.7862

37.3531

93.98

44.39

Carotenoids (mg/g FW)

Control

0.43

1.49

0.7058

47

39.57

Stress

0.0863

1.2997

0.3475

83.98

16.43

Chlorophyll a (mg/g FW)

Control

0.36

1.985

1.2565

14.37

40.35

Stress

0.0607

1.6396

0.5637

75.45

33.07

Chlorophyll b (mg/g FW)

Control

0.2059

0.6768

0.3822

12.90

44.47

Stress

0.0145

0.533

0.1993

90.11

38.05

Fiber fineness (µg/inch)

Control

0.3462

4.4903

2.1767

93.14

18.13

Stress

2.05

5.15

3.6812

73.79

20.48

Fiber length (mm)

Control

16.29

31.785

26.3596

78.50

14.58

Stress

2.93

28.42

14.1857

90.92

11.19

Fiber strength (g/tex)

Control

17.672

29.814

23.7402

25.41

21.09

Stress

4.148

27.932

14.2603

93.25

12.27

Hydrogen peroxide (µmol/g FW)

Control

0.303

1.166

0.6221

68.85

36.76

Stress

0.4579

1.3713

0.9033

62.50

38.25

Potassium (mM)

Control

135.34

179.78

156.89

73

13.87

Stress

100.29

178.67

138.25

88

26.30

Potassium-to-sodium ratio (%)

Control

2.77

7.22

4.12

60

21.41

Stress

1.68

5.09

2.67

86

30.74

Lint percentage (%)

Control

32.1954

57.5275

44.502

16.01

13.55

Stress

7.9245

49

26.6242

94.80

11.48

Sodium (mM)

Control

20.4

56.06

38.9845

65.03

21.92

Stress

33.18

69.98

53.7644

59.49

17.39

Number of bolls

Control

13

32

24.6389

18.82

36.23

Stress

3

27

13.0417

88.20

22.56

Plant height (cm)

Control

50.29

93.22

66.941

19.64

12.05

Stress

28.36

70.49

48.9806

90.56

14.89

Peroxidase (U/mg protein)

Control

5.25

19.7774

11.9577

81.13

54.77

Stress

7.1406

31.7854

16.5612

90.14

82.40

Seed cotton yield (g/plant)

Control

22.32

32.658

27.8429

81.07

29.61

Stress

5.4634

30.3084

15.5381

73.27

61.97

Superoxide dismutase (U/mg protein)

Control

3.04

7.904

5.5599

55.94

19.11

Stress

4.1312

16.845

8.4673

90.63

77.37

Total soluble proteins (mg/g FW)

Control

336.8

739.6

553.3943

97.07

37.43

Stress

288

736.8

508.7726

97.96

48.25

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