Figure 1

Effect of pre-harvest SA treatments on the fruit skin L*, a* and b* values of peach fruits at harvest and after storage plus 2-day shelf life
| Applications | L* value | a* value | b* value | |||
|---|---|---|---|---|---|---|
| Harvest | Shelf life | Harvest | Shelf life | Harvest | Shelf life | |
| Control | 63.76 ns | 64.20 ns | 20.32 ns | 27.88 ns | 44.10 ns | 46.03 ns | 
| 1 mM SA | 57.24 | 58.65 | 18.41 | 25.01 | 39.49 | 41.84 | 
| 2 mM SA | 57.96 | 59.02 | 17.23 | 24.45 | 36.76 | 39.90 | 
Effect of different concentrations of SA treatments before harvest and storage of the total phenolic content and antioxidant activity in the ‘Cresthaven’ peach varieties
| Applications | Total phenol content (mg GAE · 100 g−1 FW) | Antioxidant activity (μmol TE · g−1 FW) | ||
|---|---|---|---|---|
| Harvest | Shelf life | Harvest | Shelf life | |
| Control | 65.25 bz,* | 71.61 b* | 8.98 b* | 9.65 b** | 
| 1 mM SA | 80.17 a | 84.34 a | 11.96 a | 12.37 a | 
| 2 mM SA | 75.91 ab | 89.06 a | 11.37 a | 14.30 a | 
Effect of SA treatments on fruit weight (g), fruit width (mm) and fruit length (mm) values
| Applications | Fruit weight (g) | Fruit width (mm) | Fruit length (mm) | 
|---|---|---|---|
| Control | 259.58 b** | 78.29 b* | 79.06 b* | 
| 1 mM | 311.83 a | 82.26 a | 82.86 ab | 
| 2 mM | 300.00 a | 82.62 a | 83.55 a | 
Effect of SA treatments on TSS, TA content and pH value at harvest and after storage plus 2-day shelf life
| Application | TSS (%) | TA (g malic acid · 100 mL−1) | pH | |||
|---|---|---|---|---|---|---|
| Harvest | Shelf life | Harvest | Shelf life | Harvest | Shelf life | |
| Control | 11.80 ns | 12.46 ns | 0.65 bz* | 0.55 b* | 4.26 ns | 4.49 ns | 
| 1 mM SA | 12.00 | 12.56 | 0.78 a | 0.61 ab | 4.25 | 4.42 | 
| 2 mM SA | 12.00 | 12.86 | 0.80 a | 0.69 a | 4.25 | 4.29 | 
Effect of pre-harvest SA treatments on the fruit L*, a* and b* values of peach fruits at harvest and after storage plus 2-day shelf life 20°C
| Applications | L* value | a* value | b* value | |||
|---|---|---|---|---|---|---|
| Harvest | Shelf life | Harvest | Shelf life | Harvest | Shelf life | |
| Control | 74.43ns | 64.58 cz,* | 1.42 ns | 7.54 a* | 64.94 a* | 61.57 ns | 
| 1 mM SA | 71.88 | 69.23 b | −0.28 | 4.93 b | 63.26 ab | 61.36 | 
| 2 mM SA | 74.62 | 72.26 a | −0.46 | 3.81 b | 61.95 b | 58.63 |