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Table 2 Source of variation, degree of freedom, and mean square of the investigated traits of cotton affected by cultivation system, foliage time, and stress modulator type

From: The effect of time and type of stress moderators on yield and yield components of cotton on conventional and double-cropping systems under saline conditions

  

Plant height

Branch number

Boll number per plant

10-boll weight

1 000-seed weight

Biological yield

Seed cotton yield

Lint percentage

Lint yield

Year (Y)

1

823**

560**

965**

10.9 ns

1 745**

44 101**

1 160**

5.5 ns`

40.7**

Error 1

4

36.2

0.131

15.9

1 742

811

51.9

68.7

36

9.63

Cultivation system (C)

1

21 019**

208**

1 243**

2 285**

10 941**

115 336**

32 636**

1 261**`

5 016**

Y × C

1

847**

16.63**

1 456**

4 653*

3 615**

44 557**

14 433**

4.5 ns

1 322**

Error 2

4

11.5

2.58

7.99

404

2 747

6.69

87.1

64**

19.1

Foliage time (F)

1

767**

4.6 ns

203**

567**

219 ns

237 ns

1 076**

6

93.6**

Modulator type (M)

3

441**

82.7 **

97.3**

3 062**

3 036**

1 310**

1 135**

80.5**

188**

C × F

1

1 281**

2.54 ns

88.1**

381*

507*

15.2 ns

390**

6 ns`

33.7**

C × M

3

378**

2.59 ns

32.4**

125 ns

203 ns

647**

433**

6.5 ns

71.7**

F × M

3

51.4 ns

2.87 ns

1.74 ns

120 ns

109 ns

154 ns

62.5*

7 ns

9.56*

Y × F

1

434*

0.45 ns

29.9**

144 ns

138 ns

177 ns

59.7 ns

4.5 ns

6.53 ns

Y × M

3

143 ns

1.61 ns

19.4**

685**

925**

567**

16.03 ns

3.5 ns

3.32 ns

C × F × M

3

55.7 ns

0.821 ns

7.50 ns

58.7 ns

26.1 ns

177 ns

23.6 ns

1.75 ns`

3.74 ns

Y × C × F

1

566 ns

3.15 ns

102**

129 ns

440 ns

5.54 ns

181**

2.52 ns

19.1*

Y × C × M

3

94.9 ns

1.84 ns

24.4**

82.4 ns

286 ns

46.8 ns

123**

3.72 ns

18.4*

Y × F × M

3

140 ns

0.99 ns

15.0*

29.9 ns

24 ns

117 ns

4.19 ns

0.592 ns

0.411 ns

Y × C × F × M

3

64.9 ns

0.77 ns

6.47 ns

43.9 ns

247 ns

179 ns

10.1 ns

1.5 ns

1.71 ns

Error 3

56

73.07

1.49

3.84

77.9

120

66.5

16.4

6.01

3.12

CV

 

12.8

10.2

17.9

12.3

10.3

7.99

9.87

7.86

13.1

Bartlett's test result

 χ2

1

2.76 ns

3.83 ns

3.12 ns

2.35 ns

0.809 ns

3.51 ns

2.69 ns

0.752 ns

3.02 ns

  1. ns not significant
  2. (*) and (**) represent a significant difference at P < 0.05 and P < 0.01, respectively