Table 7.
Leaf characteristics of diploid and tetraploid S. flavescens
| Characteristics | Diploid (in vitro) | Tetraploid (in vitro) | Diploid (glasshouse) | Tetraploid (glasshouse) |
|---|---|---|---|---|
| Unifoliate leaf length (mm) | 8.4 ± 0.9a | 8.8 ± 1.0a | 30.3 ± 0.9b | 36.0 ± 0.8c |
| Unifoliate leaf width (mm) | 5.1 ± 0.5a | 5.4 ± 0.5a | 14.0 ± 0.9b | 17.9 ± 1.0c |
| Unifoliate leaf area (cm2) | 32.1 ± 2.7a | 35.4 ± 2.5a | 317.2 ± 4.7b | 645.6 ± 6.8c |
| Average leaf number | 3 ± 0a | 3 ± 0a | 11.2 ± 2.5b | 13.5 ± 2.7b |
| Stomatal apparatus length (μm) | 27.9 ± 1.2a | 31.2 ± 1.9b | 32.5 ± 1.9b | 35.6 ± 1.0c |
| Stomatal apparatus width (μm) | 24.3 ± 1.3a | 25.1 ± 1.2a | 27.7 ± 1.6b | 30.5 ± 1.2c |
Four leaves were chosen from each of five diploid control plants and each of five tetraploid plants. Twenty stomatal apparatus were measured for each leaf. Values represent the mean ± standard error. Within each row, means followed by the same letter are not significantly different at P = 0.05 level by Duncan’s multiple range test