Fig. 2
From: Use of ultrasonication to increase germination rates of Arabidopsis seeds
Effect of ageing treatment (40 °C and 100% relative humidity) on the germination percentage of seeds of A. thaliana. 30 seeds were subjected to the ageing treatment during the indicated periods of time. Each point shows a mean of ten independent samples. Vertical bars indicate standard error. Asterisks indicate significant differences respect to the control (untreated seeds) according to the t test (p < 0.05)