Figure 2.

Schedule and duration of four stages during germination in the founder populations. The mean time for Bs-2 and Col-0 seeds sown onto no-salt or salt (250 mM NaCl) media plates to reach testa rupture (gold), radicle protrusion (gray), cotyledon greening (light green), and cotyledon expansion (dark green) are shown. The cotyledon greening phase was too transient to record with our time interval under no-salt conditions. The top panel shows a magnified view of the no-salt condition, under which only the schedules of radicle protrusion and cotyledon expansion were significantly different between the accessions (P < 0.005), while schedules of all four stages were significantly different between the accessions under saline condition (P < 0.05).