Table 4 Effects of co-culture time on the culture of transgenic callus tissues of German chamomile
Column number | Co-culture days (day) | Inoculation number | Transformation efficiency（%） |
|---|---|---|---|
1 | 1 | 100 | 12.33±2.52 |
2 | 2 | 100 | 16.33±4.04 |
3 | 3 | 100 | 65.00±7.55 |
4 | 4 | 100 | 47.67±2.52 |