TABLE 7.

Significant continuous variables influencing NMDS ordination structure.

Factors	NMDS1	NMDS2	R	P
Root Biomass*	0.1739470	0.9847550	0.09234417	0.011
Wet Shoot Biomass*	0.7045319	0.7096724	0.17473196	0.011
Dry Shoot Biomass**	0.7519955	0.6591682	0.09893165	0.001
Root: Shoot	−0.2171252	0.9761438	0.059398598	0.060
Observed Richness	−0.9910300	−0.1336396	0.004609559	0.810
Chao1 Richness	−0.9569455	−0.2902677	0.003172513	0.860
Shannon Evenness	−0.9281458	0.3722167	0.010365568	0.594

Plant growth parameters and microbial richness values were fit onto NMDS ordination to identify variables correlating to HIPV composition, using the envfit() function from the vegan package was used and the summary output is reported below. Asterisk denote factor significance: P = 0 ‘***’; 0.001 ‘**’; 0.01 ‘*’; 0.05 ‘⋅’.