Fig. 6
Structural equation model describing the relationships between rootstock, compost, MNC, alpha- and beta-diversity, and predicted functionality. Numbers adjacent to arrows are indicative of the effect size (bootstrap p-value) of the relationship. Continuous and dashed arrows indicate positive and negative relationships, respectively. The width of arrows is proportional to the strength of path coefficients. R2 denotes the proportion of variance explained. Gray lines represent tested, but not significant, paths