Figure 8From: Effect of clone selection, nitrogen supply, leaf damage and mycorrhizal fungi on stilbene and emodin production in knotweedEffect of leaf damage on nitrogen content in knotweed rhizomes. Effect of leaf damage on the N content (± S.E) in the belowground biomass of four clones at the higher (top) and lower (bottom) soil N levels. Only non-inoculated plants in 2007 are shown. FJ = Fallopia japonica, FBM = Fallopia xbohemica from Mošnov, FBP = Fallopia xbohemica from Průhonice, FS = Fallopia sachalinensis. Asterisks indicate significant differences, n = 6.Back to article page