Fig. 7From: Effect of herbivore stress on transgene behaviour in maize crosses with different genetic backgrounds: cry1Ab transgene transcription, insecticidal protein expression and bioactivity against insect pestsMean Cry1Ab concentration (µg/g dwt) in different groups from South Africa. The feeding damage was induced by S. littoralis larvae. Vertical bars show mean values, and the standard errors (± SE) are indicated as lines. **P < 0.01, ns = not significant (Pairwise comparisons)Back to article page