Table 2.
Comparison between mitotic index (MI) of in vivo and in vitro grown Dianthus caryophyllus root meristems.
| Dianthus caryophyllus | MS media + hormone (mg L−1) |
Age | Mitotic index, MI (Percentage, %) |
|---|---|---|---|
| In vivo | — | 4-day-old (standard growth) |
43.51 ± 2.14f |
|
| |||
| In vitro | 2 mg L−1 NAA | 1-day-old | 41.20 ± 0.79e |
| 2-day-old | 40.23 ± 1.30de | ||
| 3-day-old | 37.35 ± 0.40c | ||
| 4-day-old | 32.32 ± 1.55a | ||
| 1-week-old | 39.20 ± 1.54cd | ||
| 2-week-old | 38.67 ± 1.35cd | ||
| 3-week-old | 43.77 ± 2.33f | ||
| 4-week-old | 38.62 ± 1.75cd | ||
| 5-week-old | 38.20 ± 3.24c | ||
| 6-week-old | 37.31 ± 1.27c | ||
| 7-week-old | 37.69 ± 0.66c | ||
| 8-week-old | 38.29 ± 1.87c | ||
| 3-month-old | 31.83 ± 0.81a | ||
| 4-month-old | 34.45 ± 0.70b | ||
| 6-month-old | 33.17 ± 0.78ab | ||
*Means with different letters in the same column differ significantly at P < 0.05 by one-way ANOVA and Duncan's multiple range test.