TABLE 1.

Characteristics of rhizosphere soils.

Site	Season	Genotype	TOC (%)	TN (%)	C:N	Pav (mg⋅kg–1)	pH(H2O)	pH(KCl)
Sweden	Fall	L	1.69 ± 0.24*	0.16 ± 0.02*	10.3 ± 0.5b	101 ± 12.2b	5.7 ± 0.2b	5.3 ± 0.1
		T	1.59 ± 0.21*	0.16 ± 0.01*	10.2 ± 0.7	94.2 ± 13.6*	5.7 ± 0.1b	5.2 ± 0.2
		LT	1.65 ± 0.2*	0.16 ± 0.02*	10.4 ± 0.6	105 ± 28.1b*	5.7 ± 0.1	5.1 ± 0.1
	Spring	L	1.89 ± 0.29*	0.17 ± 0.02*	11.1 ± 0.5Aa	75.7 ± 20.1Ba*	6.0 ± 0.2Ba	5.2 ± 0.2
		T	1.72 ± 0.22*	0.17 ± 0.02*	10.2 ± 0.6B	93.6 ± 14.7A*	6.2 ± 0.2Ba	5.2 ± 0.1
		LT	1.63 ± 0.18	0.16 ± 0.02*	10.3 ± 0.5B	63.1 ± 19.8Ba	5.7 ± 0.2A	5.2 ± 0.1
Germany	Fall	L	1.21 ± 0.17	0.11 ± 0.02	11.3 ± 0.7*	101 ± 22.0Aa	6.0 ± 0.4*	5.8 ± 0.4*
		T	1.13 ± 0.13b	0.1 ± 0.01b	11.3 ± 0.7*	57.0 ± 7.3B	6.1 ± 0.3*	6.0 ± 0.3*
		LT	1.22 ± 0.21b	0.1 ± 0.01b	11.7 ± 1.0*	55.0 ± 12.3B	6.0 ± 0.3b*	5.7 ± 0.4*
	Spring	L	1.24 ± 0.2	0.11 ± 0.01	11.3 ± 0.9	50.5 ± 9.5b	6.2 ± 0.3*	6.1 ± 0.3*
		T	1.4 ± 0.24a	0.11 ± 0.01a	12.5 ± 1.3*	54.8 ± 11.3	6.3 ± 0.2*	6.2 ± 0.2*
		LT	1.49 ± 0.19a	0.12 ± 0.01a	12.4 ± 0.8*	57.3 ± 11.2	6.2 ± 0.2a*	6.1 ± 0.3*

At each sampling site (Sweden and Germany), three plots per three blocks for each variant of the experiment (Loden, Tora, and mixture of both genotypes) were sampled. In total, 108 root and soil samples from both samplings were collected. Soil properties were compared by site, season, and genotype (plots: L-Loden, T-Tora, and LT-mixture). Values are means ± SDs (n = 9). The significant differences with p < 0.05 are marked by the following symbols: * – differences between sites in the same season, small letters – differences between seasons within one site, and capital letters – differences between genotypes on the same site and season.