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Table 1 Box Behnken design matrix with non-coded values of the studied parameters and the obtained measures of zone of inhibition (ZoI, mm)

From: Novel fabrication of SiO2/Ag nanocomposite by gamma irradiated Fusarium oxysporum to combat Ralstonia solanacearum

Run

A: RH

Conc.

B: AgNO3 Conc.

C: pH

D: Reaction time

Actual ZoI (mm)

FITS

values

1

5

1

6.5

2

20.2 ± 1.44d,e,f,g

20.0

2

15

1

6.5

2

18.9 ± 0.55g,h,i

19.9

3

5

3

6.5

2

30.1* ± 1.25a

28.6

4

15

3

6.5

2

12.4 ± 1.50l

12.1

5

10

2

5

1

15.9 ± 0.55j,k

15.5

6

10

2

8

1

12.1 ± 1.25l,m

11.7

7

10

2

5

3

20.5 ± 1.00d,e,f,g

20.4

8

10

2

8

3

15.2 ± 1.31k

15.1

9

5

2

6.5

1

18.8 ± 1.60g,h,i

19.4

10

15

2

6.5

1

10.3 ± 1.52m

10.1

11

5

2

6.5

3

21.7 ± 0.26d,e

22.5

12

15

2

6.5

3

15.4 ± 0.52k

15.3

13

10

1

5

2

22.1 ± 1.44c,d

22.2

14

10

3

5

2

19.8 ± 0.28e,f,g,h

20.4

15

10

1

8

2

15.4 ± 1.50k

15.4

16

10

3

8

2

17.6 ± 0.40i,j

18.1

17

5

2

5

2

23.8 ± 1.60c

23.8

18

15

2

5

2

17.9 ± 0.55h,i

17.5

19

5

2

8

2

21.1 ± 1.25d,e,f

21.2

20

15

2

8

2

11.2 ± 1.31l,m

10.9

21

10

1

6.5

1

15.1 ± 1.44k

14.8

22

10

3

6.5

1

15.5 ± 0.55k

16.0

23

10

1

6.5

3

20.5 ± 1.00d,e,f,g

19.7

24

10

3

6.5

3

19.4 ± 0.50f,g,h,i

19.4

25

10

2

6.5

2

28.0 ± 1.00b

27.3

26

10

2

6.5

2

27.0 ± 1.25b

27.3

27

10

2

6.5

2

27.0 ± 1.00b

27.3

  1. RH rice husk, Conc. concentration
  2. FITS values are the values predicted by the model
  3. Data for ZoI (zone of inhibition) are shown as the mean ± SD of triplicate measurements from independent experiments
  4. a–m means with different superscripts in the same column are considered statistically different (LSD test, P ≤ 0.05)
  5. *refers to the maximum ZoI (mm) obtained at run 3