Table 2.
Descriptors of morphological traits
| PC 1 | PC 2 | PC 3 | |||
|---|---|---|---|---|---|
| A. Leaf traits | |||||
| Leaf length | LL | Length from base of petiole to tip of lamina (cm) | 0.88 | 0.31 | 0.22 |
| Lamina blade length | Lbl | Distance from the tip lamina to the fist lobe (cm) | 0.39 | 0.65 | 0.36 |
| Lamina width | LW | Lamina width at the widest point (cm) | 0.43 | 0.74 | −0.05 |
| Leaf index | LI | Ratio of Lbl/LW | −0.04 | −0.06 | 0.71 |
| Leaf area | LA | The whole surface of full leaf including lobes (cm2) | 0.58 | 0.68 | 0.05 |
| Leaf perimeter | LP | The edge of full leaf (cm) | 0.9 | 0.25 | 0.14 |
| Petiole length | LPL | Distance from the base of the petiole to bottom of lamina (cm) | 0.95 | 0.07 | 0.1 |
| Leaf lobes | LB | Number of lobes on the leaf | 0.82 | −0.13 | 0.11 |
| Leaf color | LC | Visual score (1 = dark, 2 = high green, 3 = medium green, 4 = light green, 5 = green–yellow, 6 = yellow) | −0.42 | 0.53 | 0.25 |
| Leaf edge shape | LES | Score (1 = entire, 2 = slightly serrated, 3 = intermediate serrated, 4 = very serrated) | 0.46 | 0.09 | 0.22 |
| Presence of petiole | LPP | Score (0 = absent, 1 = present) | 0.41 | −0.46 | 0.013 |
| SPAD | SPAD | Chlorophyll content | 0.42 | −0.27 | −0.19 |
| B. Flower traits | |||||
| Corolla length | CL | Symmetric length between petals (mm) | −0.11 | 0.76 | 0.09 |
| Corolla width | CW | Symmetric width between petals (mm) | −0.11 | 0.76 | −0.2 |
| Petal length | pL | Distance from base to the top of the petal (mm) | −0.02 | 0.48 | 0.47 |
| Petal width | pW | Petal width at the widest point (mm) | −0.07 | 0.85 | −0.37 |
| Petal index | pI | Ratio of pL/pW | 0.06 | −0.47 | 0.74 |
| Petal area | pA | The whole surface of petal (mm2) | −0.08 | 0.87 | −0.14 |
| Petal perimeter | pP | The edge of petal (mm) | −0.06 | 0.74 | 0.08 |
| Petal shape | pS | Scored (1 = round, 2 = oval, 3 = elongate) | 0.06 | −0.46 | 0.58 |
| Petal color | pC | Visual screening of petal color (1 = orange, 2 = high yellow, 3 = Yellow, 4 = medium yellow, 5 = light yellow) | −0.76 | −0.1 | 0.05 |
| Flowering in time | DTF | Number of days from transplant till the appearance of the first open flower (days) | 0.86 | 0.04 | −0.07 |
| C. Plant architecture trait | |||||
| Leaf number | LN | Number of the leaves when the first flower opens | −0.47 | 0.22 | 0.53 |
| Plant branch | PB | Number of the branches at flowering time | −0.66 | 0.07 | 0.18 |
| Plant height | PH | Distance from the cotyledons to the top of the plant at pre-mature stage (cm) | −0.8 | 0.33 | 0.15 |
| Plant final height | PfH | Distance from the cotyledons to the top of the plant at mature stage (cm) | −0.66 | 0.44 | 0.11 |
| Variance | 31.22 | 23.87 | 9.58 | ||
Variance and Loading values of the first three Principal Components using morphological data