. Author manuscript; available in PMC: 2011 Mar 1.

Published in final edited form as: Tree Physiol. 2010 Mar 1;30(4):490–501. doi: 10.1093/treephys/tpq003

Table 3.

Onset, end, and overall duration of wood formation in Pinus sylvestris and number of mature xylem and latewood cells (LW) in 2007 and 2008 at study plots (n = five trees/site). Timing of wood formation is given in days of the year (mean values ± standard deviation). Statistically significant differences of mean values between sites and years are indicated by different letters (P ≤ 0.05; Student's t test).

	Onset		End		Duration (days)		Xylem cells (n)		LW cells (n)
	2007	2008	2007	2008	2007	2008	2007	2008	2007	2008
Xeric	102 ± 9^a	120 ± 9^b	243 ± 9^a	253 ± 11^a	141 ± 8^a	133 ± 9^a	13 ± 6^a	11 ± 7^a	4 ± 2^a	5 ± 4^a
Dry-mesic	110 ± 10^a	128 ± 7^b	271 ± 9^b	287 ± 7^b	162 ± 12^b	159 ± 11^b	16 ± 2^a	16 ± 3^a	5 ± 3^a	6 ± 2^a