Table 1.

Substrate and plant parameters of non-mycorrhizal (NM) pots and pots inoculated with Rhizoglomus irregulare (AM) for the intra- and inter-genotypic plant combinations containing either two wild type tomato plants (WT/WT), two resistant mutants (RMC/RMC) or one WT and one resistant mutant (WT/RMC).

Variable	Inoculation	Pot combination			ANOVA
		WT/WT	WT/RMC	RMC/RMC	Pot	Inoculation	H × I
Substrate
Total dry porosity [cm3 cm-3]	NM	0.56 ± 0.02	0.54 ± 0.01	0.56 ± 0.01	0.516	0.026	0.727
	AM	0.53 ± 0.01	0.53 ± 0.01	0.53 ± 0.01
ΘSAT [cm3 cm-3]	NM	0.50 ± 0.01	0.49 ± 0.01	0.50 ± 0.01	0.652	0.031	0.885
	AM	0.47 ± 0.01	0.48 ± 0.01	0.49 ± 0.01
Air filled porosity [cm3 cm-3]	NM	0.06 ± 0.02	0.05 ± 0.01	0.06 ± 0.01	0.784	0.698	0.906
	AM	0.06 ± 0.02	0.05 ± 0.01	0.05 ± 0.01
KSAT [log10 cm d-1]	NM	2.00 ± 0.06	2.01 ± 0.19	2.14 ± 0.19	0.414	0.856	0.443
	AM	1.91 ± 0.09	2.23 ± 0.12	2.07 ± 0.08
BRSP [mg cm-3]	NM	0.38 ± 0.08	0.42 ± 0.06	0.43 ± 0.05	0.771	0.258	0.204
	AM	0.47 ± 0.09	0.46 ± 0.06	0.40 ± 0.04
Plant
Plant dry weight [g]	NM	148 ± 3.94	149 ± 8.35	159 ± 6.13	0.913	0.822	0.455
	AM	151 ± 10.4	154 ± 4.88	147 ± 8.09
Root dry weight [g]	NM	37.5 ± 3.22	36.4 ± 4.41	45.9 ± 6.22	0.911	0.837	0.204
	AM	40.1 ± 5.15	42.0 ± 4.38	35.5 ± 3.30
Shoot phosphorus [% DW]	NM	0.28 ± 0.01	0.27 ± 0.02	0.26 ± 0.01	0.619	0.206	0.849
	AM	0.25 ± 0.02	0.26 ± 0.01	0.25 ± 0.01

Θ_SAT and K_SAT denote the saturated water content and conductivity, respectively. Means (±SE) and significant P-values are highlighted in bold (two way ANOVA, α = 0.05, n = 4).