Table 3 Phenolic compounds were determined in Petunia x hybrida ‘Mitchell Diploid’ (MD) and ir-PhCSE T1 flowers with LC–MS (μg⋅mL⁻¹⋅mgFW⁻¹). Data represent mean ± SE (n = 3). The means were separated by one-way ANOVA and statistically significant differences (p < 0.05) were identified by Tukey’s test. The results were shown by letters to represent differences among groups

4.7 ± 1.2 a

4.0 ± 0.9 a

4.0 ± 0.6 a

4.2 ± 1.4 a

4.1 ± 1.3 a

4.2 ± 0.5 ab

2.7 ± 0.9 ab

2.0 ± 0.7 a

56. 7 ± 1.6 a

42.7 ± 0.8 a

34.4 ± 0.1 b

36.1 ± 3.7 b

0.1 ± 0.0 a

0.2 ± 0.1 a

0.1 ± 0.0 a

0.2 ± 0.0 a

1.5 ± 0.1 a

1.6 ± 0.0 a

1.1 ± 0.0 b

0.8 ± 0.1 bc

2.4 ± 0.7 a

2.3 ± 0.5 a

3.0 ± 0.2 a

2.8 ± 0.6 a

8.2 ± 0.6 a

7.9 ± 0.4 a

8.3 ± 0.9 a

8.0 ± 0.1 a

0.1 ± 0.0 a

0.1 ± 0.0 a

0.1 ± 0.0 a

0.1 ± 0.0 a

0.3 ± 0.0 a

0.2 ± 0.0 a

0.2 ± 0.0 a

0.2 ± 0.0 a