Table 5 Factor loading and cumulative eigenvalue percentage received from 24 leaf anatomical characters
Anatomical characters | Component | |
|---|---|---|
1 | 2 | |
1. Epidermal cell wall on adaxial leaf surface | 0.024 | −0.086 |
2. Epidermal cell wall on abaxial leaf surface | 0.071 | 0.397 |
3. Types of non-glandular trichome on abaxial leaf surface | 0.051 | 0.059 |
4. Shape of petiole | 0.076 | 0.131 |
5. Midrib outline and adaxial curvature | −0.217 | 0.153 |
6. Leaf margin shape | 0.146 | 0.245 |
7. Ratio of adaxial leaf epidermal cell size | 0.051 | 0.059 |
8. Stomatal index (SI) on adaxial leaf surface | −0.193 | 0.067 |
9. Ratio of stomatal size on adaxial leaf surface | −0.124 | 0.281 |
10. Ratio of glandular trichome size on adaxial leaf surface | −0.202 | 0.118 |
11. Ratio of non-glandular trichome size on adaxial leaf surface | 0.000 | −0.163 |
12. Ratio of abaxial leaf epidermal cell size | 0.093 | 0.172 |
13. Stomatal index (SI) on abaxial leaf surface | 0.222 | 0.159 |
14. Ratio of stomatal size on abaxial leaf surface | 0.043 | 0.113 |
15. Ratio of glandular trichome size on abaxial leaf surface | −0.197 | −0.304 |
16. Ratio of non-glandular trichome size on abaxial leaf surface | −0.448 | −0.229 |
17. Ratio of epidermal cell size in petiole | 0.122 | 0.390 |
18. Ratio of petiole transverse section | −0.430 | 0.026 |
19. Ratio of palisade mesophyll cell size in leaf transverse section | 0.076 | 0.063 |
20. Ratio of spongy mesophyll cell size in leaf transverse section | −0.114 | 0.284 |
21. Ratio of adaxial epidermal cell size in leaf transverse section | 0.177 | 0.103 |
22. Ratio of abaxial epidermal cell size in leaf transverse section | 0.108 | −0.245 |
23. Blade thickness | −0.504 | 0.243 |
24. Ratio of midrib thickness | 0.083 | −0.156 |
Eigenvalue | 1.3776 | 1.0784 |
Cumulative % of eigenvalue | 28 | 49.9 |