Table 2.
Soluble sugars, starch (on a dry mass basis, mg g–1) and nitrogen (%) concentrations (mean ± 1 s.e.) and statistical inference, for different tissues in adult trees of Nothofagus pumilio growing naturally in Patagonia, Chile, which were or were not affected by a massive defoliation, after 1 and 2 years of an outbreak of Ormiscodes amphimone (Saturniidae); data were analysed using linear mixed-effects models
| 1 year after defoliation |
2 years after defoliation |
|||||
|---|---|---|---|---|---|---|
| Control | Defoliated | F-ratios (P-values) | Control | Defoliated | F-ratios (P-values) | |
| Soluble sugars | ||||||
| Leaf | 148·7 (3·31) | 139·2 (4·05) | 6·36 (0·015) | 122·8 (7·29) | 116·8 (6·56) | 0·68 (0·41) |
| Branch | 25·9 (1·16) | 22·0 (1·29) | 4·88 (0·031) | 27·9 (1·54) | 27·2 (1·89) | 0·13 (0·72) |
| Stem sapwood | 15·6 (0·87) | 16·0 (1·19) | 0·10 (0·75) | 16·2 (1·08) | 13·4 (0·95) | 6·64 (0·013) |
| Starch | ||||||
| Leaf | 41·0 (1·83) | 54·0 (1·81) | 26·3(<0·001) | 35·9 (1·40) | 48·5 (1·77) | 37·12 (<0·001) |
| Branch | 58·4 (2·55) | 63·9 (3·74) | 1·66 (0·202) | 51·8 (2·01) | 62·6 (3·05) | 10·71 (0·002) |
| Stem sapwood | 28·2 (2·80) | 26·0 (2·41) | 0·35 (0·553) | 21·55 (1·04) | 21·1 (1·59) | 0·06 (0·807) |
| Nitrogen | ||||||
| Leaf | 1·84 (0·05) | 1·60 (0·05) | 13·85 (<0·001) | 1·82 (0·04) | 1·60 (0·04) | 14·30 (<0·001) |
| Branch | 0·46 (0·01) | 0·48 (0·02) | 0·95 (0·330) | 0·44 (0·01) | 0·45 (0·02) | 0·06 (0·800) |
| Stem sapwood | 0·29 (0·01) | 0·29 (0·01) | 0·60 (0·440) | 0·30 (0·01) | 0·29 (0·01) | 0·52 (0·470) |