Fig. 2.

Treatment effects on a total biomass, b root-to-shoot ratio, c shoot biomass and (d) root biomass of Scabiosa columbaria after one generation of conditioning. Field soils are soils left bare in the first generation, conspecific refers to soils conditioned with S. columbaria, heterospecific refers to soils conditioned with S. minor. Droughted soils are in grey bars, well-watered soils are in white. Error bars are SEM