Table 4 Effects of plant growth-promoting bacteria and Trichoderma species on O. crenata growth parameters in faba bean under greenhouse conditions (Experiment III)

  Orobanche alone (Orob.)

1.3^a

–

0.56^a

–

0.10^a

–

ND

ND

  Orob. + glyphosate alone

1.1^a

15

0.54^ab

4

0.08^b

20

ND

ND

  Orob. + P. fluorescens

0.9^a

31

0.51^c

9

0.07^b

30

ND

ND

  Orob. + B. subtilis

0.9^a

31

0.33^d

41

0.04^c

60

ND

ND

  Orob. + B. pumilus

0.6^a

54

0.28^e

50

0.05^c

50

ND

ND

  Orob. + T. harzianum

0.3^a

77

0.14^f

75

0.04^c

60

ND

ND

  Orob. + T. viride

0.1^a

92

0.08^g

86

0.02^d

80

ND

ND

  Orob. + T. vierns

0.9^a

31

0.52^bc

7

0.05^c

50

ND

ND

  Orobanche alone (Orob.)

14.3^a

–

2.09^a

–

0.49^a

–

2.41^a

–

  Orob. + glyphosate alone

1.1^c

92

1.33^ab

36

0.31^ab

37

1.38^b

43

  Orob. + P. fluorescens

12.8^a

11

0.64^b

69

0.15^b

69

1.97^ab

18

  Orob. + B. subtilis

5.0^bc

65

0.71^b

66

0.17^b

65

2.28^ab

5

  Orob. + B. pumilus

12.4^a

13

0.50^b

76

0.13^b

74

1.66^ab

31

  Orob. + T. harzianum

5.3^bc

63

1.05^b

50

0.24^b

51

1.66^ab

31

  Orob. + T. viride

13.4^a

6

0.84^b

60

0.20^b

59

2.22^ab

8

  Orob. + T. vierns

8.6^ab

40

0.79^b

62

0.18^b

63

2.19^a

9

  Orobanche alone (Orob.)

13.5^a

–

2.61^a

–

0.52^a

–

9.00^a

–

  Orob. + glyphosate alone

3.0^c

78

0.73^c

72

0.16^c

69

2.60^c

71

  Orob. + P. fluorescens

4.9^bc

64

0.92^bc

65

0.19^c

64

3.18^c

65

  Orob. + B. subtilis

10.4^ab

23

1.52^b

42

0.30^bc

42

6.25^b

31

  Orob. + B. pumilus

7.0^bc

48

1.43^b

45

0.39^ab

25

7.92^ab

12

  Orob. + T. harzianum

7.8^bc

42

1.38^bc

47

0.28^bc

46

7.00^b

22

  Orob. + T. viride

4.6^bc

66

1.12^bc

57

0.42^ab

19

7.10^b

21

  Orob. + T. vierns

6.0bc

56

1.57b

40

0.41ab

21

7.00b

22