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Table 3 Population parameters 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

Population parameter

15 °C

20 °C

Agar

Hydrogel

Agar

Hydrogel

B. oleraceae

N. physalodes

B. oleraceae

N. physalodes

B. oleraceae

N. physalodes

B. oleraceae

N. physalodes

Mean ± SE

Mean ± SE

Mean ± SE

Mean ± SE

Mean ± SE

Mean ± SE

Mean ± SE

Mean ± SE

Intrinsic rate of increase, r (day−1)

0.15 ± 0.01 d

0.12 ± 0.01 e

0.20 ± 0.01 b

0.16 ± 0.01 d

0.15 ± 0.02 cde

0.19 ± 0.01 bc

0.29 ± 0.01 a

0.28 ± 0.01 a

Finite rate of increase, λ (day−1)

1.16 ± 0.01 c

1.12 ± 0.01 d

1.22 ± 0.01 b

1.17 ± 0.01 c

1.16 ± 0.02 cd

1.21 ± 0.01 bc

1.34 ± 0.01 a

1.33 ± 0.01 a

Gross reproductive rate (offspring per individual), GRR

40.39 ± 2.94 b

22.35 ± 3.24 bc

46.02 ± 2.81 b

47.65 ± 3.15 b

22.73 ± 5.67 c

32.47 ± 6.15 c

57.46 ± 3.17 a

64.28 ± 2.96 a

Net reproductive rate (offspring per individual), R0

17.14 ± 2.60 b

8.28 ± 1.56 cd

28.89 ± 2.50 ab

23.40 ± 3.06 b

5.68 ± 1.27 d

9.97 ± 1.48 c

33.5 ± 2.92 a

36.46 ± 3.56 a

The mean length of a generation, T (days)

18.62 ± 0.31 a

17.54 ± 0.45 b

16.77 ± 0.33 b

19.53 ± 0.40 a

11.12 ± 0.25 d

11.89 ± 0.32 cde

11.87 ± 0.15 e

12.42 ± 0.21 c

  1. Different letters in the same row indicate statistical differences based on paired bootstrap test