Table 1.

The results of Kruskal–Wallis tests that were performed to identify significant differences in the SR and Faith’s diversity of root-associated bacterial and fungal ASVs across different plant-related factors.

	Bacterial ASVs						Fungal ASVs
Factor	SR			Faith’s diversity			SR			Faith’s diversity
	H value	P value	DF	H value	P value	DF	H value	P value	DF	H value	P value	DF
PS	44.16	0.17	36	49.94	0.06	36	54.02	0.03*	36	54.46	0.02*	36
Plant genus	35.26	0.23	30	41.12	0.08	30	47.28	0.02*	30	44.50	0.04*	30
Plant family	14.22	0.36	13	16.80	0.21	13	18.25	0.15	13	19.58	0.11	13
Plant order	13.59	0.26	11	15.03	0.18	11	17.67	0.09	11	19.17	0.06	11
Plant class	2.43	0.30	2	1.91	0.39	2	6.45	0.04*	2	4.64	0.10	2
Provenance1	1.50	0.22	1	5.89	0.02*	1	0.90	0.34	1	0.42	0.52	1
N2 fixing	2.13	0.14	1	4.96	0.03*	1	0.43	0.51	1	0.79	0.37	1
Life span2	1.34	0.51	2	2.18	0.34	2	6.28	0.04*	2	7.11	0.03*	2
Functional group3	2.25	0.52	3	2.42	0.49	3	6.68	0.08	3	8.60	0.04*	3
Mycorrhizal association4	0.41	0.81	2	2.44	0.29	2	4.37	0.11	2	6.27	0.04*	2

* P value < 0.05

¹exotic or native to Aotearoa New Zealand

²annual, perennial, or long-lived

³tree, forb, grass, or shrub

⁴Arbuscular mycorrhizal fungi (AMF), ectomycorrhizal fungi (EMF), or no mycorrhizal association DF = degrees of freedom.