Figure 6.

Survival rate of germinating pdc1 and wild-type seeds on plates containing different concentrations of sodium chloride or mannitol. Surface-sterilized pdc1 and wild-type seeds were placed on 0.85% (w/v) agar plates containing the indicated concentrations of either NaCl or mannitol. After an incubation at 4°C for 3 d to break seed dormancy, plates were transferred to the growth room under long-day conditions (23°C ± 2°C). Percentage of germination was scored after 1 week, and root length of germinated seeds was measured. Data represent the mean ± se of four replicate experiments. A, Germination on NaCl-containing plates. B, Germination on mannitol-containing plates.