Table 2.

Influence of four different temperatures on the life table parameters of Plutella xylostella.

	Temperature
Parameters	15 °C	20 °C	25 °C	30 °C
r	0.11 ± 0.01 c	0.17 ± 0.01 b	0.22 ± 0.02 a	0.25 ± 0.02 a
ʎ	1.12 ± 0.01 c	1.19 ± 1.17 b	1.25 ± 0.02 a	1.29 ± 0.02 a
GRR	76.52 ± 17.43 c	103.48 ± 22.46 a	95.34 ± 20.41 b	87.91 ± 18.78 c
R0	61.10 ± 14.92 c	88.70 ± 20.03 a	79.10 ± 17.75 b	70.66 ± 16.05 ab
T	34.55 ± 0.67 a	26.13 ± 0.55 b	19.21 ± 0.58 c	16.67 ± 0.51 d

r; The intrinsic rate of increase (per days).

ʎ; The finite rate of increase (per days).

GRR; Gross reproductive rate (offspring).

R₀; The net reproductive rate (offspring/individual).

T; The mean generation time (days).

Means in the same row followed by the same letter are not significantly different (P > 0.05) using bootstrap test.