Aphid numbers in choice tests.

<p>White bars represent control plants and black bars transgenic plants. Twenty adult apterous BCAs were placed in between a control and a transgenic plant in the same pot. Ten adult apterous GPA were placed within small cages on the control and on the transgenic plant in the same pot and after 24 h, the cages were opened. The total number of aphids on each genotype was counted after 5 days. Results are presented as percentage of total number of aphids counted on each plant pair. Average aphid numbers (±SE) on pair Con/CI2c 6–3 were 136.2 ± 10.2 (BCA) and 7.0 ± 1.9 (GPA) and on Con/CI2c 6–4: 120.7 ± 15.1 (BCA), respectively 22.3 ± 7.0 (GPA). Asterisks indicate significant differences (Wilcoxon matched pair test, <i>p</i>≤0.05). n = 6.