Effect of salinity and temperature on the seed germination of bituminaria bituminosa var. bituminosa

In order to rehabilitate degraded sylvo-pastoral land, we envisioned install Bituminaria bituminosa var. bituminosa, a pasture species with agronomic characters ideally suited to Mediterranean climates. The present research aims to evaluate the effect of different incubation temperatures (4, 17, 20, 28, 40, 45 °C) and different concentrations of NaCl (0, 1.5, 3, 4.5, 6 g L-1) on seed germination. Total germination (TG), Mean germination time (MGT) and Daily Germination Speed (DGS), were calculated during 20 days. The results obtained from this study revelated that Bituminaria bituminosa var. bituminosa showed a high germinative potential. Is able to germinate under a wide range of temperature (4 - 40 °C) and tolerate saline stress of above 4.5 g L-1.our results show that B. bituminosa var. bituminosa has promising characteristics that qualified, for rehabilitate degraded pastoral areas in Morocco.