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Table 1 Mean numbers of the abundance of the tested adult predators related to three examined factors

From: Do the diversity of plants and sulphur application influence the population fluctuation of insect predator?

 

Post treatment intervals (hours)

0 h

2 h

12 h

24 h

48 h

72 h

168 h

Mean number of predators ± SE

Plant

 Okra

7.42 ± 0.73b

4.14 ± 0.53b

7.58 ± 1.16b

7.33 ± 1.09b

8.81 ± 1.02b

8.58 ± 0.94b

9.69 ± 0.93b

 Marrow

13.36 ± 1.06a

12.50 ± 1.71a

14.56 ± 1.86a

15.64 ± 2.03a

14.83 ± 1.57a

13.44 ± 1.25a

13.50 ± 1.44a

F value

141.346**

338.484**

77.619**

2506.570**

29.315**

18.161*

45.593**

P value

0.0013

0.0004

0.0031

0.0000

0.0124

0.0237

0.0066

Predators (B)

Coccinella

13.58 ± 0.95a

10.29 ± 1.59a

15.46 ± 1.72a

15.79 ± 1.83a

16.25 ± 1.63a

15.63 ± 1.03a

16.46 ± 1.17a

Chrysoperla

11.46 ± 1.55b

11.38 ± 2.26a

12.71 ± 2.53b

14.38 ± 2.64a

13.25 ± 1.89b

12.04 ± 1.57b

12.58 ± 1.70b

Stethorus

6.13 ± 0.59 c

3.29 ± 0.49b

5.04 ± 0.82c

4.29 ± 0.79b

5.96 ± 0.70c

5.38 ± 0.66c

5.75 ± 0.62c

F value

24.899**

100.812**

52.092**

180.713**

48.931**

132.578**

61.030**

 LSD at 5%

2.373

1.346

2.305

1.437

2.332

1.392

2.138

P value

0.0001

0.0000

0.0000

0.0000

0.0000

0.0000

0.0000

Treatments

 Control

10.13 ± 1.25a

9.08 ± 1.33b

14.67 ± 1.80a

14.54 ± 2.01a

13.88 ± 1.79a

13.25 ± 1.56a

14.04 ± 1.81a

 Sulphur treated

11.13 ± 1.29a

3.46 ± 0.76c

3.92 ± 0.80b

5.04 ± 0.92b

7.46 ± 1.04b

7.75 ± 1.05b

8.88 ± 1.21c

 Untreated second area

9.92 ± 1.29a

12.42 ± 2.33a

14.63 ± 2.31a

14.88 ± 2.60a

14.13 ± 1.91a

12.04 ± 1.44a

11.88 ± 1.37b

F value

1.169NS

85.637**

234.577**

101.773**

32.172**

38.261**

18.493**

 LSD at 5%

1.403

1.160

1.587

1.911

1.340

1.730

P value

0.3221

0.0000

0.0000

0.0000

0.0000

0.0000

0.0000

  1. Means in a column followed with the same letter(s) are not significantly different (P at 5%)
  2. **Highly significant
  3. NSInsignificant