Table 1.

Life table parameters of grain aphids fed on wild-type and different transgenic wheat lines.

Parameters	Wild-type	33-69	33-364	33-592
R0	21.27 ± 0.52	11.32 ± 1.08**	10.86 ± 0.73**	7.94 ± 0.77**
T	14.49 ± 0.30	13.40 ± 0.19*	13.38 ± 0.16*	12.57 ± 0.26**
rm	0.21 ± 0.01	0.18 ± 0.01*	0.18 ± 0.01*	0.16 ± 0.01*
λ	1.24 ± 0.01	1.20 ± 0.01*	1.20 ± 0.01*	1.18 ± 0.01*
DT	3.29 ± 0.08	3.86 ± 0.16*	3.91 ± 0.15*	4.25 ± 0.23*

All data are expressed as means ± SEM based on 3 repeated experiments. R₀, net reproductive rate; r_m, the intrinsic rate of increase; λ, the finite rate of increase; T, the mean generation time; DT, Doubling time (day). Student’s t-test, n=3, ^*P<0.05, ^**P<0.01.