Xylogenesis of compression and opposite wood in mountain pine at a Mediterranean treeline

Table 1 Average residence time of OW and CW cells spent in the enlarging and wall-thickening phase for the whole ring (All) and separated for earlywood (EW) and latewood (LW) cells

Group and phase	CW [days]	OW [days]	Level of significance
Enlarging
All	6.07	8.94	***
EW	7.56	10.78	***
LW	4.47	7.11	***
Wall thickening
All	22.53	18.91	**
EW	20.36	15.58	***
LW	24.04	22.11	Ns

Differences between the mean of CW and OW have been tested using a t test. *P < 0.05, **P < 0.01, ***P < 0.001. Earlywood is here defined as the first half of cells in the ring, while latewood refers to the second half of cells in the ring
Ns non significant

ISSN: 1297-966X