Fig. 5From: Use of ultrasonication to increase germination rates of Arabidopsis seedsScanning electron microscopic view of Arabidopsis Col-0 seeds. a–c Seed subjected to 45 kHz sonication at 24 °C for 30 s. d, e dry seed, f, g seed placed in water for 4 days at 4 °C so they are embedded but they do not germinate, h, i, germinated seedsBack to article page