Figure 2.

Simulated dormancy cycling in Cape Verde Island. Seeds were incubated at 5 °C/dark at −1.2 MPa for up to 21 d before being transferred to water at 25 °C/dark. At increasing periods of time, dormancy status was determined by measuring germination following transfer of seeds to a buffer control, 50 or 250 μ m GA_4 + 7 buffered at pH 5.0 at 20 °C/light for 28 d. Data are mean ± SE (n = 3). Absence of error bars indicates that SE is smaller than the symbol. GA, gibberellins.