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Table 4 Effect of PSB inoculum on in vitro rice fresh root

From: The growth response of rice (Oryza sativa L. var. FARO 44) in vitro after inoculation with bacterial isolates from a typical ferruginous ultisol

Inoculum

Fresh root length (cm) on

4DAS

5DAS

6DAS

2WAS

3WAS

4WAS

A/10

3.3 ± 0.36a

5.0 ± 0.08a

5.2 ± 0.10a

7.0 ± 0.10a

8.8 ± 0.24a

9.3 ± 0.01a

A/7.5

2.8 ± 0.21b

4.2 ± 0.15b

4.6 ± 0.30b

5.2 ± 0.06b

6.8 ± 0.38b

7.1 ± 0.04b

A/5

2.2 ± 0.88c

4.3 ± 0.49b

4.6 ± 0.26b

5.1 ± 0.30b

6.8 ± 0.37b

7.0 ± 0.23b

B/10

1.2 ± 0.11d

3.3 ± 0.05c

3.3 ± 0.06c

3.7 ± 0.13c

4.9 ± 0.44c

5.6 ± 0.11c

B/7.5

1.1 ± 0.06d

2.6 ± 0.24d

3.1 ± 0.07c

3.2 ± 0.16d

4.4 ± 0.15c

5.1 ± 0.23c

B/5

1.7 ± 0.63e

3.2 ± 0.06c

3.3 ± 0.07c

3.6 ± 0.03c

4.1 ± 0.07d

5.1 ± 0.03c

C/10

3.2 ± 0.08e

4.5 ± 0.09b

4.7 ± 0.12b

4.9 ± 0.11e

5.3 ± 0.33e

5.9 ± 0.06c

C/7.5

2.6 ± 0.31b

3.3 ± 0.12c

3.5 ± 0.14c

4.4 ± 0.34f

5.3 ± 0.32e

5.6 ± 0.05c

C/5

1.7 ± 0.21e

3.5 ± 0.28c

3.7 ± 0.38c

4.6 ± 0.15e

5.4 ± 0.30e

5.5 ± 0.07c

D/10

0.6 ± 0.20f

1.7 ± 0.27e

2.0 ± 0.25d

3.1 ± 0.03d

3.8 ± 0.23f

4.0 ± 0.09d

  1. DAS= Days after sowing, WAS= Weeks after sowing. Results with similar alphabetic superscripts on same column did not differ from each other (p>0.05). A10, A7.5 and A5.0 = 10 ml, 7.5 ml and 5.0 ml of Bacillus sp., respectively. B10, B7.5 and B5.0 = 10 ml, 7.5 ml and 5.0 ml Proteus sp., respectively. C10, C7.5 and C5.0 = 10 ml, 7.5 ml and 5.0 ml of Klebsiella sp., respectively. D10= 10 ml of control.