Table 3.
Rhopalosiphum padi individual weight (mean ± SE, n=6) after 4 d of growth on the test plants that had been either pre-infested with 20 aphids (all aphids removed after 3 d) or without pre-infestation.
| Plant typea | Line no. | Aphid weight (µg) | Aphid weight (µg) |
|---|---|---|---|
| Pre-infested | Not pre-infested | ||
| Controlb | 1-37-7-1 | 239 ± 17 | 241 ± 17 |
| Control | 1-37-7-2 | 215 ± 14 | 219 ± 11 |
| Double mutant | 1-37-8-2 | 237 ± 19 | 226 ± 18 |
| Double mutant | 1-37-24-1 | 223 ± 7 | 266 ± 12 |
| Mutant 1636 | 1-37-33-4 | 227 ± 24 | 210 ± 11 |
| Mutant 1639 | 1-37-40-1 | 239 ± 20 | 236 ± 20 |
Each plant (replicate) was infested with five newborn nymphs. There were no significant aphid weight differences among the lines (p=0.36) or between the pre-infestation treatments (p=0.75) when tested by ANOVA (see Table S1 ) based on replicate means of individual aphid weights.
aLines were tested in generation S3.
bControl lines originated from the same T0 plant 1–37 from which mutations were segregated.