Figure 3

Effect of PP333 treatment on content of ABA (A), GAs (B), IAA (C), and ZRs (D) in ‘Changshouguan’. Values are presented as mean ± SE (n = 3). Different letters reflect significant differences among different treatments on the same date (p < 0.05). CK: independent warming treatment group; A1: 1000 mg/L PP333 spraying + warming treatment group; A2: 1500 mg/L PP333 + warming treatment group; A3: 2000 mg/L PP333 + warming treatment group. M/D: month/day.