Table 3.
Comparative analysis of ex vitro growth indices between diploid and tetraploid plants of gerbera (Gerbera jamesonii Bolus ex Hooker f.) at different growth stages
| 1-month | 4-month | 7-month | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Plant height (cm) | Number of shoots | No. of leaves | Leaf length (cm) | Leaf width (cm) | Leaf area (cm2) | Plant height (cm) | Number of shoots | No. of leaves | Leaf length (cm) | Leaf width (cm) | Leaf area (cm2) | Plant height (cm) | Number of shoots | No. of leaves | Leaf length (cm) | Leaf width (cm) | Leaf area (cm2) | |
| Diploid | 4.5 ± 0.3 | 3.0 ± 0.2 | 9.8 ± 0.5 | 1.1 ± 0.1 | 0.7 ± 0.1 | 0.9 ± 0.1 | 10.6 ± 0.3 | 3.4 ± 0.2 | 10.8 ± 0.3 | 3.9 ± 0.2 | 2.4 ± 0.3 | 7.9 ± 0.4 | 10.6 ± 0.3 | 3.4 ± 0.2 | 10.8 ± 0.3 | 6.4 ± 0.5 | 4.1 ± 0.4 | 22.9 ± 0.5 |
| Tetraploid | 8.6 ± 0.4 | 1.3 ± 0.1 | 4.6 ± 0.4 | 2.7 ± 0.2 | 1.7 ± 0.1 | 4.3 ± 0.1 | 20.2 ± 0.7 | 2.1 ± 0.1 | 5.4 ± 0.2 | 6.8 ± 0.3 | 4.5 ± 0.4 | 18.5 ± 0.7 | 20.2 ± 0.7 | 2.1 ± 0.3 | 5.4 ± 0.4 | 10.1 ± 0.3 | 8.2 ± 0.5 | 69.1 ± 0.7 |
| T value | 9.31** | 7.08** | 8.52** | 7.67** | 6.67** | 54.33** | 12.63** | 7.64** | 14.59** | 9.58** | 5.83** | 75.5** | 12.63** | 7.64** | 14.59** | 10.82** | 20.50** | 164.89** |
*Significant at 5% probability level
**Significant at 1% probability level (using t-test); Data represent mean ± standard error of five replicates with 20 samples per treatment