Table 2. Results of factorial ANOVA evaluating the interactive effect of water addition (+W: future conditions) and treatments (non-sterilized, sterilized and re-inoculated sterilized soils) on (A) photochemical performance, measured as maximum quantum efficiency (F_v/F_m) of photosystem II (PSII), and (B) the total biomass of Colobanthus quitensis.

Significant P values (< 0.05) are highlighted in bold.

Source of variation	d.f.	MS	F	P
(A) Photochemical efficiency (Fv/Fm)
Water addition (+W)	1	0.001	18.80	< 0.001
Treatments (T)	2	0.002	2.77	0.069
+W x T	2	0.001	2.38	0.100
Error	66	-	-	-
(B) Biomass (gr)
Water addition (+W)	1	0.114	45.17	< 0.001
Treatments (T)	2	0.211	41.63	< 0.001
+W x T	2	0.047	9.20	< 0.001
Error	66	-	-	-