Table 2.
Overview of leaf (Bud burst ± 2 d) and cambial phenology (Onset Xy, ± 5 d) timing (day of the year), the lag between both events and length of the xylem growing season
| Sample | 2013–2014 | 2014–2015 | 2015–2016 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bud burst | Onset Xy | Lag (d) | End Xy | Xy season (d) | Bud burst | Onset Xy | Lag (d) | End Xy | Xy season (d) | Bud burst | Onset Xy | Lag (d) | |
| T1 | 280 | – | – | – | – | 276 | 11 | 100 | 138.0 | 127 | 280 | – | – |
| T2 | 302 | 361 | 59 | 154 | 158 | 313 | 359 | 46 | 156.0 | 162 | 307 | – | – |
| T3 | 302 | – | – | – | – | 313 | 361 | 48 | 157.0 | 161 | 307 | – | – |
| T4 | 273 | 308 | 35 | 120 | 177 | 268 | 325 | 57 | 130.0 | 170 | 263 | 330 | 67 |
Two trees formed no xylem during the 2013–2014 season (indicated by –) and at the time of felling (December 2015) three out of four trees had not yet formed new xylem (see also Supporting Data Fig. S7).