Table I.
The effects of MCP and NBD on the ethylene-induced triple response in pea seedlings
| Treatment | Hook Angle | Epicotyl Width | Epicotyl Length |
|---|---|---|---|
| % | |||
| Control | 100 | 100 | 100 |
| Ethylene (1 μL L−1) | 198 ± 5 | 136 ± 1 | 70 ± 1 |
| MCP (100 nL L−1) | 91 ± 11 | 94 ± 2 | 111 ± 4 |
| MCP + ethylene | 108 ± 5 | 102 ± 2 | 104 ± 2 |
| NBD (2,000 μL L−1) | 88 ± 5 | 93 ± 1 | 115 ± 4 |
| NBD + ethylene | 131 ± 7 | 95 ± 2 | 99 ± 3 |
Four-day-old seedlings were incubated for 48 h at 23°C in the dark. Where ethylene was used together with inhibitors, the latter were added at zero time, and ethylene was added after 1 h. Data are presented as a percentage of the control. Values indicate the means ± se of 45 measurements.