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. 2017 May 8;8:737. doi: 10.3389/fpls.2017.00737

Table 2.

Day of the year (DOY) when the different phenological phases were recorded or detected adopting two different approaches: intensive monitoring (with dendrometers continuous monitoring or following xylem phenology) and dendroanatomy.

Period Max growth rate Onset Ending Approach
Spruce 1926–1968 187 172 268 Dendroanatomy
1969–2012 183 168 276 Dendroanatomy
1996–2005 173 166 277 Intensive monitoring
Larch 1926–1968 187 143 250 Dendroanatomy
1969–2012 182 119 280 Dendroanatomy
1996–2005 173 159 272 Intensive monitoring

Data of intensive monitoring taken from Rossi et al. (2006, 2008). For dendroanatomy the DOY corresponds to the first (onset) or last day (ending of the growing season) of a continuous series of at least 10 significant correlations computed between temperature and the MCA chronology of the 1st or 10th sector. For maximum growth rate the DOY coincides with the day with the highest significant correlation values. See Figure 5 for further details.