Figure 2.

Hyponastic growth of the third oldest petiole of R. palustris plants (27-d-old) that were treated with ethylene or submerged (A), or pretreated with 1-MCP and subsequently submerged or treated with ethylene (B). The arrow in A represents the time when the ethylene treatment was stopped. Plots are means of three to eight replicate plants. Mean se never exceeded 6% in A and 5% in B. Lag-phase and end hyponastic growth, (A) 1.6 h (se 0.2 h) and 4.5 h (se 0.1 h) for ethylene, 2.1 h (0.2 h) and 5.5 h (se 0.2 h) for submerged.