Fig. 1
From: Use of ultrasonication to increase germination rates of Arabidopsis seeds
Effect of ultrasounds on the germination percentage of seeds of A. thaliana. 30 seeds were subjected to 45 kHz sonication at 24 °C during the indicated periods of time. Each point shows a mean of ten independent samples. Vertical bars indicate standard error. For clarity, SD is only shown for the 7 days data. Asterisks indicate significant differences respect to the control (untreated seeds) according to the t test (p < 0.05)