Table 4.
The influence of leaf area on pedicel vascularization in fruitlets of Salustiana sweet orange
| Date of measurement and treatment | Pedicel diameter (mm) | Xylem CSA (mm2) | Phloem CSA (mm2) | SMT in phloem (mg mm–2 d–1) |
| Initial value (15 June) | 2·5 ± 0·08 | 1·1 ± 0·1 | 0·52 ± 0·08 | – |
| Final values (27 July) | ||||
| 40 leaves | 3·47a | 3·0a | 0·55 | 277a |
| 30 leaves | 3·27b | 2·5bc | 0·60 | 214b |
| 20 leaves | 2·98c | 1·9cd | 0·52 | 159c |
| 10 leaves | 2·81d | 1·5d | 0·51 | 79d |
| s.e. | 0·04 | 0·25 | 0·08 | 15 |
Shoots were girdled on 15 June. Measurements performed on 27 July. Values are means of ten fruitlets. For further details see Table 3.
Values within a column followed by different superscripts differ at P ≤ 0·05 (Duncan’s multiple range test).