. 2016 Sep 12;11(9):e0162867. doi: 10.1371/journal.pone.0162867

Table 4. Correlations between gas exchange parameters and growth indices for T. distichum and T. ascendens saplings (n = 27).

		DBH	Tree height	Crown area	Primary branch number
T. distichum	P_n^‡	0.622^**^‡	0.391^*	–0.418^*	0.335^*
	g_s	0.013	0.191	–0.191	0.311
	WUEi	0.517^**	0.349^*	–0.25	0.254
	Ls	0.525^**	0.336^*	–0.223	0.238
T. ascendens	P_n	0.243	–0.113	0.02	–0.184
	g_s	0.356^*	0.12	0.27	–0.349^*
	WUEi	–0.235	–0.311	–0.29	0.167
	Ls	–0.169	–0.242	–0.192	0.061

^†Net photosynthetic rate (P_n), stomatal conductance (g_s), intrinsic water use efficiency (WUEi), limiting value of stomata (Ls) and diameter at breast height (DBH).

^‡ *, P < 0.05

**, P < 0.01