Table 3.
Epidermal cell size (SEC), leaf size (SL), leaf hydraulic conductance (KL) and midday leaf water potential (ΨL) of leaves from sun and shade plants of woody (W) and herbaceous (H) species
| Species | Habit | SEC (mm2 × 10–3) | P-value | SL (cm2) | P-value | KL (mmol m–2 s–1 MPa–1) | P-value | ΨL (MPa) | P-value | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sun | Shade | Sun | Shade | Sun | Shade | Sun | Shade | ||||||
| Bauhinia purpurea | W | 0·27 ± 0·02 | 0·37 ± 0·01 | <0·01 | 79·1 ± 5·86 | 70·57 ± 6·63 | 0·97 | 17·24 ± 0·45 | 12·11 ± 1·13 | <0·05 | –0·73 ± 0·07 | –0·44 ± 0·03 | 0·08 |
| Bedfordia salicina | W | 1·42 ± 0·13 | 1·86 ± 0·14 | 0·5 | 12·76 ± 0·95 | 14·33 ± 2·98 | 1 | 11·12 ± 1·03 | 5·19 ± 0·34 | 0·14 | –1·16 ± 0·2 | –0·64 ± 0·07 | 0·74 |
| Prostanthera lasianthos | W | 1·4 ± 0·06 | 1·91 ± 0·18 | 0·22 | 22·09 ± 2·49 | 19·89 ± 1·86 | 1 | 11·49 ± 0·68 | 9·05 ± 0·49 | 0·15 | –0·72 ± 0·06 | –0·37 ± 0·04 | <0·05 |
| Solanum laciniatum | W | 1·08 ± 0·03 | 2·60 ± 0·14 | <0·001 | 46·5 ± 3·2 | 134·7 ± 18·07 | <0·05 | 15·13 ± 1·08 | 11·98 ± 1·04 | 0·43 | –0·44 ± 0·01 | –0·18 ± 0·01 | <0·001 |
| Glycine max | H | 0·96 ± 0·05 | 1·01 ± 0·09 | 1 | 90·64 ± 4·55 | 10·8 ± 0·61 | <0·001 | 30·25 ± 1·52 | 14·68 ± 1·93 | <0·01 | –0·25 ± 0·01 | –0·31 ± 0·02 | 0·14 |
| Ocimum basilicum | H | 2·92 ± 0·16 | 3·56 ± 0·2 | 0·26 | 58·48 ± 6·41 | 32·88 ± 5·24 | 0·11 | 10·51 ± 0·97 | 13·77 ± 0·76 | 0·21 | –0·28 ± 0·01 | –0·19 ± 0·01 | <0·01 |
| Senecio minimus | H | 1·77 ± 0·13 | 2·82 ± 0·05 | <0·001 | 20·90 ± 1·09 | 26·32 ± 1·22 | 0·08 | 10·8 ± 0·88 | 7·85 ± 0·7 | 0·22 | –0·5 ± 0·04 | –0·52 ± 0·05 | 1 |
| Solanum lycopersicum | H | 0·9 ± 0·04 | 1·47 ± 0·04 | <0·001 | 17·87 ± 0·38 | 27·6 ± 0·88 | <0·001 | 11·97 ± 0·5 | 7·5 ± 0·34 | <0·001 | –0·39 ± 0·02 | –0·23 ± 0·02 | <0·01 |
Values are means ± s.e.
Means of the two light treatment groups were compared using unpaired t-tests. P-values < 0·05 are shown in bold.