Figure 11From: Effect of clone selection, nitrogen supply, leaf damage and mycorrhizal fungi on stilbene and emodin production in knotweedPiceid and nitrogen in rhizomes of differently treated knotweed plants. Relationships between piceid and nitrogen in the belowground biomass of the control plants (a), damaged plants (b), inoculated plants (c) and inoculated and damaged plants (d) of the FJ, FBM and FBP clones and the two soil N levels combined, in 2007, n = 12.Back to article page