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Table 1 Duration of adult longevity and total life span (d), sex ratio (female ratio) and fecundity (eggs) of sequential generations of Trichogramma embryophagum reared on Sitotroga cerealella eggs

From: How long-term mass rearing affects the quality of the Trichogramma embryophagum (Hartig) (Hymenoptera: Trichogrammatidae) reared on Sitotroga cerealella (Olivier) eggs

No. generation

Number of individuals

Adult longevity (Female)

Adult longevity (Male)

Total life span (Female)

Oviposition days

Sex ratio % (Female/total)

Fecundity

5

76

7.98 ± 0.36a

6.54 ± 0.40a

18.40 ± 0.38a

5.83 ± 0.19a

63.16

60.50 ± 2.35a

10

69

7.32 ± 0.42ab

6.07 ± 0.48ab

18.22 ± 0.38a

5.30 ± 0.28ab

59.42

52.71 ± 2.81b

15

64

7.08 ± 0.37abc

6.04 ± 0.51ab

17.83 ± 0.40ab

4.89 ± 0.25bc

56.25

43.97 ± 1.99c

20

71

6.54 ± 0.38bc

5.31 ± 0.46bc

16.95 ± 0.41bc

4.51 ± 0.21c

54.93

35.72 ± 2.02d

25

74

6.22 ± 0.31 cd

5.24 ± 0.31bc

16.68 ± 0.41cde

4.36 ± 0.19c

55.41

29.66 ± 1.59e

28

67

5.45 ± 0.31de

4.45 ± 0.42c

16.13 ± 0.32cde

3.78 ± 0.17d

56.71

27.76 ± 1.59ef

30

72

5.68 ± 0.21de

4.66 ± 0.37c

15.92 ± 0.26de

3.74 ± 0.09d

51.39

26.81 ± 1.21ef

32

75

5.55 ± 0.23de

4.22 ± 0.39c

15.82 ± 0.24e

3.55 ± 0.13d

50.67

24.89 ± 1.02 fg

34

76

5.50 ± 0.31de

4.42 ± 0.32c

15.74 ± 0.24e

3.75 ± 0.18d

50.00

22.66 ± 1.27gh

37

71

5.43 ± 0.28de

4.38 ± 0.32c

15.51 ± 0.25e

3.69 ± 0.16d

52.11

20.43 ± 1.30 h

40

73

5.19 ± 0.40e

4.22 ± 0.33c

15.35 ± 0.42e

3.53 ± 0.16d

49.31

19.24 ± 1.88 h

  1. The means marked by the same letters within the same column are not significantly different (Paired-bootstrap test, P < 0.05)