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Egyptian Journal of Biological Pest Control

Table 1 The effect of Pochonia chlamydosporia var. chlamydosporia isolates on Meloidogyne javanica populations, survival of the fungus isolates and their colonization of roots of pistachio after 4 months in the greenhouse (n = 5 means ± S.E)

From: Biocontrol potential of Pochonia chlamydosporia var. chlamydosporia isolates against Meloidogyne javanica on pistachio

Treatments

Gall no./g root

Gall index

Egg infection %

(arc sin)

Pf/Pi

(sqrt x + 0.5)

J2/pot

Healthy egg and J2/pot

(log x + 1)

% control

Nematode

69.6 ± 2.63 a

4

0 c

1.40 (1.37) ± 0.2 a

273 ± 29

4643 (3.66) ± 0.3 a

–

Nematode + Pcc10

26.6 ± 1.21 d

3

19 (0.1) ± 0.02 b

0.90 (1.18) ± 0.4 c

267 ± 18

2980 (3.47) ± 0.2 c

36

Nematode + Pcc20

23.6 ± 1.53 d

3

37 (0.4) ± 0.01 a

0.55 (1.02) ± 02 d

167 ± 24

1805 (3.25) ± 0.1 d

61

Nematode + Pcc30

33.2 ± 2.08 c

4

16 (0.1) ± 0.01 b

0.98 (1.21) ± 0.3 c

333 + 32

3253 (3.51) ± 0.2 c

30

Nematode + Pcc60A

64.0 ± 1.84 a

4

3 (0.02) ± 0.04 c

1.37 (1.35) ± 0.2 a

400 ± 36

4531 (3.62) ± 0.5 a

2.5

Nematode + Pcc60B

56.4 ± 2.14 a

4

9 (0.1) ± 0.02 b

1.20 (1.28) ± 0.3 b

300 ± 42

3969 (3.55) ± 0.3 b

15

Nematode + Pcc60C

39.4 ± 2.03 b

4

16 (0.2) ± 0.03 b

0.92 (1.19) ± 0.2 c

233 ± 26

3041 (3.47) ± 0.5 c

35

Pistachio

–

–

–

–

–

–

–

 

P < 0.05 (SED = 3.01)

n.s.

P < 0.05 (SED = 0.01)

P < 0.05 (SED = 0.06)

n.s.

P < 0.05 (SED = 0.06)

 
  1. Data in parenthesis were transformed before being subjected to ANOVA; numbers followed by the same letter in the columns are not significantly different at 5% level according to LSD test; Pf/Pi = ratio of final to initial population density, % control: control–treatment/control × 100. Pcc10, Pcc20, Pcc30, Pcc60C = 1 × 104, Pcc60A = 1 × 103 and PccB = 5 × 103 cfu/g soil
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