Table II.
The progressive effects of various treatments on petiole elongation in M. quadrifolia
| Leafa | Control | Fluridoneb | Fluridone + Blue Light | ABAb | Blue Light | Blue Light + ABA |
|---|---|---|---|---|---|---|
| mm | ||||||
| 1 | 7.8 ± 0.8 | 5.7 ± 1.7 | 20.1 ± 2.2 | 21.3 ± 3.5 | 27.4 ± 9.1 | 20.2 ± 4.3 |
| 2 | 8.4 ± 0.5 | 2.6 ± 0.9 | 21.0 ± 4.2 | 23.6 ± 5.9 | 61.0 ± 14.0 | 35.2 ± 8.3 |
| 3 | 8.8 ± 0.8 | 1.7 ± 0.4 | 11.0 ± 7.4 | 32.0 ± 4.9 | 93.2 ± 14.1 | 60.2 ± 10.1 |
| 4 | 9.8 ± 0.8 | 1.0 ± 0.1 | 6.4 ± 2.3 | 34.2 ± 8.9 | 100.0 ± 10.0 | 76.0 ± 5.7 |
| 5 | 9.6 ± 1.4 | 2.9 ± 1.6 | 47.0 ± 7.1 | 86.0 ± 6.6 | ||
| 6 | 10.0 ± 1.0 | 1.5 ± 0.1 | ||||
Results are shown as petiole length (average ± sd) recorded after 3 weeks of treatment. Aside from the indicated treatments, other culture conditions were kept the same.
a
The leaves are listed in the order produced during the treatment, 1 being the first leaf, etc. In addition to petiole length, the number of leaves produced in each treatment varied during the experimental period, indicating that the treatments also affect the initiation and emergence of new leaves.
b
Fluridone and ABA were applied at 1 μm.