Fig. 4
From: Effect of IAA on coumarins synthesis in Angelica dahurica under soil compactness stress
IAA content of A. dahurica in different soil compactness treatments. LP (low compactness treatment group ,5 kPa), MP(moderate compactness treatment group, 15 kPa) and HP(high compactness treatment group HP, 25 kPa) represent different soil compactness treatment groups respectively. Data are the mean values (n = 3). Letters represent significant differences between treatments (p < 0.05).
