Table 7. Principal component analysis of fruit traits in 62 Prunus humilis accessions.
| Traits | Eigenvectors | |
|---|---|---|
| Prin1 | Prin2 | |
| Single fruit weight (g) | -0.26 | 0.45 |
| Stone weight (g) | -0.01 | 0.03 |
| Vertical diameter (mm) | -0.20 | 0.48 |
| Horizontal diameter (mm) | -0.30 | 0.60 |
| Soluble solid content (%) | 0.10 | -0.05 |
| Total flavonoid content (mg/g FW) | 0.57 | 0.31 |
| Total phenol content (mg/g FW) | 0.19 | 0.08 |
| DPPH (mg TE/g FW) | 0.13 | 0.08 |
| FRAP (mg TE/g FW) | 0.35 | 0.14 |
| ABTS (mg TE/g FW) | 0.54 | 0.27 |
| Eigenvalue | 45.40 | 28.99 |
| Proportion (%) | 52.56 | 33.56 |
| Cumulative (%) | 52.56 | 86.12 |
Note: DPPH, 2,2-diphenyl-1-picrylhydrazyl free radical scavenging capacity; FRAP, ferric reducing antioxidant power; ABTS, 2,2’-azinobis (3-ethylbenzothiazoline-6-sulfonic acid) free radical scavenging capacity.