Table 1.
IAA Concentration Determines the Frequency of Leaf Induction on Tomato NPA Pins
| Number of Effects (%)
|
|||
|---|---|---|---|
| Treatmenta | No. of Treatments | Bulgingb | Primordiumc |
| Lanolin only | 18 | 0 | 0 |
| 0.1 mM IAA | 18 | 5 (27) | 3 (17) |
| 0.3 mM IAA | 18 | 10 (55) | 6 (33) |
| 1.0 mM IAA | 17 | 15 (88) | 9 (53) |
| 3.0 mM IAA | 18 | 17 (94) | 12 (67) |
| 10 mM IAA | 18 | 18 (100) | 14 (78) |
| 30 mM IAA | 18 | 16 (88) | 11 (61) |
a
Apices were cultured on 10 μM NPA for 17 days. The resulting pins were locally treated with IAA at the flank. Apices were examined 8 days after treatment with IAA.
b
Apices formed a local bulge at the site of treatment.
c
Apices in which the local bulge developed into a leaf primordium.