Fig. 2From: Effect of maturation time on dormancy and germination of Citrullus colocynthis (Cucurbitaceae) seeds from the Arabian hyper-arid desertsEffect of time of seed maturation, and temperature of incubation on germination rate index (mean ± SE) of Citrullus colocynthis fresh seeds. Hatched and light bars are for 20/30 °C and 25/35 °C, respectively. No germination happened at 15/25 °CBack to article page