Fig. 9From: Analysis of exogenous lactic acid bacteria on growth and development of different herbaceous peony varieties and rhizosphere soil nutrientsEffects of LAB on the hormone and spermidine content of herbaceous peony roots and the rates of change. a IAA content; b ABA content; c Spermidine content.  D ‘Dafugui’; H ‘Hongxiuqiu’; Z ‘Zifengyu’. D-CK ‘Dafugui’ control group; D-LAB ‘Dafugui’ treatment group, H-CK ‘Hongxiuqiu’ control group; H-LAB ‘Hongxiuqiu’ treatment group, Z-CK ‘Zifengyu’ control group; Z-LAB ‘Zifengyu’ treatment group. Rate of change (ROC): the ratio of the amount of change (difference between the treatment and control groups) to the control group. All values were represented as the mean ± SE of three replicates (n = 3)Back to article page