Table 1.
Effect of chilling treatment on leaf appearance rate, final length of leaf 5 blade and shoot biomass in 6 inbred lines of maize
| Inbred | Phyllochron [days] | Final length of 5th leaf blade [cm] | Shoot dry weight [g] | ||||
|---|---|---|---|---|---|---|---|
| Control conditions | During chilling | After chilling | Control | Chilling | Control | Chilling | |
| F03802 | 4.0 | 24 | 3.3 | 69.1 ± 2.2 | 61.9 ± 3.1* | 14.5 ± 1.9 | 16.4 ± 3.9 |
| F2 | 3.7 | 15 | 2.8 | 66.2 ± 3.9 | 54.6 ± 2.3* | 14.8 ± 2.3 | 11.8 ± 2.8 |
| F283 | 3.6 | 12 | 3.1 | 60.3 ± 3.1 | 51.2 ± 2.4* | 16.5 ± 3.4 | 15.6 ± 3.1 |
| F353 | 3.0 | 8.8 | 2.8 | 59.3 ± 3.0 | 50.3 ± 4.2* | 13.7 ± 1.4 | 12.9 ± 1.8 |
| B73 | 3.6 | 21 | 3.3 | 56.7 ± 2.5 | 48.0 ± 2.2* | 14.1 ± 2.4 | 12.4 ± 2.0 |
| Mo17 | 4.3 | 23 | 3.6 | 68.9 ± 3.2 | 56.2 ± 3.5* | 19.9 ± 2.6 | 18.4 ± 3.1 |
The 7-day chilling treatment (10 °C day/7 °C night) was applied at 5-VL stage. Measurements of final leaf length and biomass were performed at 12-VL stage. Data are means ± sd of 15 plants. *indicates significant effect of chilling (P < 0.05)