Potassium treatment

Group 1

Group 2

Group 3

Group 4

Total

2010

(2-8 July)

2011

(3-9 July)

2010

(9-15 July)

2011

(10-16 July)

2010

(16-22 July)

2011

(17-24 July)

2010

(23-30 July)

2011

(15-31 July)

2010

2011

Seedcotton weight (g∙plant⁻¹)

Control

16.1

17.0

15.3

17.6

13.3a

15.2a

11.6a

13.0

56.3a

62.8a

40% K

14.9

15.7

14.8

17.4

12.0a

13.9a

9.3a

10.4a

51.0a

57.5a

20% K

15.6

15.9

14.3

15.4

10.8ab

11.8ab

4.9b

5.6b

45.5b

48.7b

0% K

15.5

15.1

13.3

14.6

9.3bc

10.4bc

4.0b

3.8c

42.2b

43.9b

LSD (0.05)

ns

ns

ns

ns

2.1

2.8

2.5

1.6

5.4

6.1

Lint weight (g∙plant⁻¹)

Control

6.1

6.5

5.8

6.7

5.1a

5.8a

4.4a

4.9a

21.4a

23.9a

40% K

5.9

6.3

5.9

7.0

4.8ab

5.6ab

3.7a

4.2a

20.4ab

23.0ab

20% K

6.5

6.7

6.0

6.4

4.5ab

5.0ab

2.1b

2.4b

19.1ab

20.5ab

0% K

6.4

6.2

5.4

6.0

3.8bc

4.3bc

1.6b

1.6c

17.3bc

18.0bc

LSD (0.05)

ns

ns

ns

ns

0.9

1.1

0.9

0.8

2.0

2.6

Seed weight (g∙plant⁻¹)

Control

10.0

10.5

9.5

10.9

8.2a

9.4a

7.2a

8.1a

34.8a

38.9a

40% K

8.9

9.4

8.9

10.4

7.2ab

8.4ab

5.6a

6.3a

30.5ab

34.5a

20% K

9.0

9.2

8.3

8.9

6.2ab

6.8ab

2.8b

3.3b

26.3ab

28.3b

0% K

9.2

8.9

7.8

8.6

5.5bc

6.2bc

2.4b

2.3b

24.8bc

25.9b

LSD (0.05)

ns

ns

ns

ns

1.6

1.4

1.5

1.1

4.5

4.3