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Table 1 Developmental periods, adult longevity and life cycle duration of Myzus persicae reared on leaf disks of the cabbage Brassica oleraceae and the shoo-fly plant Nicandra physalodes on agar or hydrogel layers under two different temperatures (15 and 20 °C)

From: Hydrogel as an alternative to agar for laboratory rearing of the green peach aphid Myzus persicae

Parameters

Stage

15 °C

20 °C

 

Agar

 

Hydrogel

 

Agar

 

Hydrogel

 

B. oleraceae

 

N. physalodes

 

B. oleraceae

 

N. physalodes

 

B. oleraceae

 

N. physalodes

 

B. oleraceae

 

N. physalodes

N

Mean ± SE

N

Mean ± SE

N

Mean ± SE

N

Mean ± SE

N

Mean ± SE

N

Mean ± SE

N

Mean ± SE

N

Mean ± SE

Development time (days)

N1

44

2.57 ± 0.16 a

47

1.83 ± 0.11 b

37

2.24 ± 0.13 a

42

2.45 ± 0.41 a

45

1.53 ± 0.08 c

48

1.50 ± 0.07 c

45

1.6 ± 0.08 bc

49

1.65 ± 0.07 bc

N2

36

2.58 ± 0.14 a

46

2.30 ± 0.12 a

28

2.61 ± 0.13 a

41

2.32 ± 0.10 a

44

1.57 ± 0.1 b c

48

1.77 ± 0.07 b

45

1.53 ± 0.07 b

49

1.71 ± 0.07 bc

N3

32

2.72 ± 0.15 a

44

2.48 ± 0.08 a

25

2.56 ± 0.17 a

38

2.82 ± 0.15 a

42

1.52 ± 0.09 b

47

1.66 ± 0.09 b

43

1.7 ± 0.07 b

47

1.57 ± 0.07 b

 

N4

30

3.30 ± 0.19 a

43

3.16 ± 0.12 a

25

3.40 ± 0.22 a

33

3.15 ± 0.16 a

32

1.94 ± 0.12 b

44

2.05 ± 0.05 b

41

2.05 ± 0.10 b

45

2.09 ± 0.07 b

 

N1–N4

30

11.3 ± 0.21 a

43

9.72 ± 0.16 b

25

10.80 ± 0.23 a

33

10.79 ± 0.16 a

32

6.41 ± 0.20 d

44

6.98 ± 0.10 c

41

6.83 ± 0.12 cd

45

7 ± 0.10 c

Longevity (days)

Female

30

16.1 ± 1.13 b

43

19.3 ± 1.32 ab

25

14.08 ± 1.05 bc

33

22.73 ± 1.96 a

32

5.97 ± 0.53 e

44

9.45 ± 0.56 d

41

7.76 ± 0.66 d

45

12.18 ± 1.02 c

Life cycle*

N1—Female

48

19.46 ± 1.61 b

48

26.65 ± 1.54 a

49

14.84 ± 1.58 cde

47

25.19 ± 2.32 a

48

10.21 ± 0.59 f

48

15.65 ± 0.63 d

49

13.08 ± 0.77 e

49

18.18 ± 1.05 bc

  1. N = number of specimens at each developmental stage; N1 : 1st instar aphid, N2: 2nd instar aphid, N3: 3rd instar aphid, and N4: 4th instar aphid; (*): Mean total life history for females. Developmental stage, longevity and life cycle are given as Means (days) ± SE. Different letters in the same row indicate statistical differences based on paired bootstrap test