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Mean leaf width increase rate (LWIR; cm leaf−1) between main shoot L5 and L9 for each genotype (G) and environment (E) (except expt 1, which was similar to expt 3)
| Genotype | Expt 2 | Expt 3 | Expt 4 | Expt 5 |
|---|---|---|---|---|
| Hybrid 1 | 1·11 | 1·14 | 1·40 | 0·98 |
| Hybrid 2 | 1·13 | 1·10 | 1·37 | 0·94 |
| Hybrid 3 | 0·84 | 1·19 | 1·28 | 0·95 |
| Hybrid 4 | 0·72 | 0·97 | 1·22 | 0·86 |
| Hybrid 5 | 0·75 | 1·03 | 1·30 | 0·91 |
| Hybrid 6 | – | 0·97 | – | – |
| G | *** | |||
| E | *** | |||
| G × E | * |
Significance levels for G, E and G × E interaction effects are indicated: *P < 0·05; ***P < 0·001.
