Table 4.
Seasonal change in dry-mass based leaf starch content (mg g-1) in leaves of fullmoon maple seedlings grown under different light conditions.
| Date | Open | Shade | ||||
|---|---|---|---|---|---|---|
| H0 | L0 | LH1 | LH2 | LH3 | F-statistics | |
| Aug 2 | 14.6 ± 2.6 | 11.2 ± 3.2 | ― | ― | ― | 0.66ns (F1,6) |
| Aug 20 | 22.3 ± 3.4 | 18.4 ± 5.7 | ― | ― | ― | 0.36ns (F1,6) |
| Sep 8 | 13.7 ± 1.9 | 5.3 ± 4.3 | ― | ― | ― | 3.04ns (F1,6) |
| Sep 29 | 7.3 ± 1.5 | 8.8 ± 1.8 | ― | ― | ― | 0.40ns (F1,6) |
| Oct 6 | 7.9 ± 0.5 ab | 4.5 ± 0.8 b | 10.4 ± 1.7 a | ― | ― | 8.62* (F2,8) |
| Oct 13 | 5.8 ± 2.0 | 4.3 ± 0.6 | 8.3 ± 3.9 | 6.8 ± 1.5 | ― | 0.64ns (F3,11) |
| Oct 19 | 6.6 ± 2.1 | 2.6 ± 0.8 | 5.3 ± 3.7 | 2.5 ± 1.2 | 4.5 ± 1.6 | 1.00ns (F4,17) |
| Oct 25 | 1.9 ± 0.8 a | 0.3 ± 0.3 | 0.4 ± 0.7 | 0.5 ± 0.4 | 0.0 ± 0.3 | 2.08ns (F4,15) |
H0: open condition, L0: shade condition (relative irradiance of ≈ 13% of open condition) throughout the experimental period, LH1: transfer from shade to open on Oct 5, LH2: transfer from shade to open on Oct 12, and LH3: transfer from shade to open on Oct 18. Values are means ± se; n= 3 to 6 for attached leaves, sampled from Aug 2 to Oct 25. * denotes significant effect at P ≤ 0.05. ns indicates no significant effect. Different letters indicate significant differences among means of light treatments on the same date at P < 0.05.