Fig. 4

Embryo/seed ratio (E:S ratio) in the seeds of Lonicera insularis Nakai, Lonicera praeflorens Batalin, Lonicera harae Makino, and Lonicera subsessilis Rehder at seed dispersal and at just before germination. The seeds of L. insularis, L. praeflorens, L. harae, and L. subsessilis were incubated at 15 °C, 15 °C, 20 °C, and 25 °C, respectively. The vertical error bars represent SE (n = 3). Each E:S ratio at dispersal and just before germination was compared using paired t test. ***p < 0.001