Table 2 Bio-efficacy of plant growth-promoting rhizobacterial isolates with different concentrations of their cell-free culture filtrates on egg hatching inhibition of M. incognita

Ba

93.50 ± 0.86^b

88.61 ± 0.50^c

87.00 ± 1.15^c

78.48 ± 0.53^c

86.51 ± 0.42^c

84.29 ± 1.42^c

80.49 ± 1.45^c

74.81 ± 0.75^d

72.10 ± 0.59^e

70.11 ± 0.77^d

62.90 ± 2.59^d

55.79 ± 2.35^d

Bs

94.40 ± 1.43^b

88.19 ± 0.64^c

88.15 ± 0.52^c

83.21 ± 1.34^bc

87.91 ± 1.23^c

86.56 ± 1.31^c

78.63 ± 1.63^c

78.11 ± 0.43^c

76.73 ± 1.76^d

72.31 ± 2.46^d

66.39 ± 1.50^d

64.96 ± 0.49^c

Pa

93.94 ± 1.90^b

91.37 ± 0.86^b

88.52 ± 0.85^bc

80.60 ± 2.80^bc

87.45 ± 0.70^c

83.50 ± 0.76^c

79.73 ± 1.09^c

78.10 ± 0.60^c

82.80 ± 0.87^c

78.01 ± 1.15^c

72.03 ± 2.57^c

70.09 ± 0.67^b

Ba + Bs + Pa

96.27 ± 0.50^b

94.87 ± 0.43^a

91.58 ± 1.10^b

84.26 ± 2.78^b

93.94 ± 0.98^b

92.51 ± 0.80^b

87.38 ± 1.27^b

86.86 ± 0.61^b

88.38 ± 1.66^b

87.06 ± 1.01^b

79.01 ± 1.28^b

72.98 ± 1.44^b

NB

16.26 ± 1.12^c

19.59 ± 1.88^d

12.51 ± 2.09^d

7.26 ± 2.15^d

SDW

0.00 ± 0.00^d

0.00 ± 0.00^e

0.00 ± 0.00^e

0.00 ± 0.00^e

VP

100.00 ± 0.00^a

96.05 ± 0.42^a

95.78 ± 0.46^a

92.31 ± 1.33^a

F value

1641.125

2169.703

1467.670

451.943

2691.128

1235.637

866.110

1332.493

1250.492

719.534

405.441

578.716

CV

2.603

2.204

2.815

5.273

2.033

2.917

3.674

3.085

3.014

3.862

5.497

4.831

CD (0.05)

3.220

2.639

3.264

5.622

2.401

3.376

3.995

3.222

3.290

4.088

5.344

4.393