Table 2 The time (days ± SE) spent at each instar for Locusta migratoria nymphs (gregarious phase, Minamidaito strain) that were reared in isolation and fed with one of barley chromosome addition lines of wheat (2H–7H), barley cultivar ‘Betzes’ (B) or wheat cultivar ‘Chinese Spring’ (CS, control) until ecdysis to the 5th nymphal instar. The number of individuals examined was shown in Table 1
1st instar | 2nd instar | 3rd instar | 4th instar | 1st–4th instars total | |
---|---|---|---|---|---|
2H | 10.9 ± 0.3 | 10.9 ± 0.5 | 9.7 ± 0.5 | 10.7 ± 0.5 | 39.2 ± 0.7 |
3H | 9.2 ± 0.3 | 8.3 ± 0.5 | 9.0 ± 0.5 | 11.7 ± 0.5 | 36.4 ± 1.8 |
4H | 10.0 ± 0.3 | 8.7 ± 0.5 | 9.1 ± 0.5 | 11.6 ± 0.5 | 37.3 ± 1.2 |
5H | 9.6 ± 0.3 | 9.4 ± 0.5 | 9.4 ± 0.4 | 10.8 ± 0.5 | 37.4 ± 1.0 |
6H | 9.5 ± 0.3 | 8.5 ± 0.5 | 8.8 ± 0.5 | 11.0 ± 0.5 | 36.6 ± 1.0 |
7H | 9.9 ± 0.3 | 8.8 ± 0.4 | 8.8 ± 0.4 | 11.8 ± 0.4 | 37.8 ± 0.8 |
B | 13.4*** ± 0.7 | 11.3 ± 0.9 | 8.5 ± 0.8 | 12.5 ± 0.8 | 45.7** ± 0.7 |
CS | 9.4 ± 0.3 | 8.9 ± 0.5 | 8.6 ± 0.4 | 11.4 ± 0.4 | 37.7 ± 0.6 |