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Table 7 Experimental design of factors for IAA optimisation by Klebsiella pneumoniae MEBAphS1, an endophyte isolated from Alternanthera philoxeroides

From: Endophytic bacteria Klebsiella spp. and Bacillus spp. from Alternanthera philoxeroides in Madiwala Lake exhibit additive plant growth-promoting and biocontrol activities

Run

A: Time (days)

B: pH

C: Tryptophan conc. (µg/ml)

Response: IAA conc. (µg/ml)

1

10

6.5

1.05

195.417

2

0

4

0.1

0.672

3

0

4

0.1

0.672

4

26.8179

6.5

1.05

143.132

5

26.8279

6.5

1.05

143.133

6

10

6.5

1.05

195.417

7

20

4

0.1

16.231

8

20

4

0.1

16.231

9

10

10.7045

1.05

120.781

10

10

10.7045

1.05

120.782

11

20

9

2

89.721

12

20

9

2

89.724

13

0

9

0.1

2.72

14

0

9

0.1

2.72

15

0

4

2

2.6395

16

0

4

2

2.6394

17

20

4

2

36.172

18

20

4

2

36.172

19

10

6.5

1.05

195.417

20

10

2.29552

1.05

8.124

21

10

2.29552

1.05

8.135

22

20

9

0.1

92.5455

23

20

9

0.1

92.5455

24

10

6.5

1.05

195.417

25

0

9

2

5.32

26

0

9

2

5.42

27

10

6.5

1.05

195.417

28

10

6.5

1.05

195.417

29

10

6.5

2.6477

43.081

30

10

6.5

2.6477

43.081