EFFECTS OF NaCl ON SEED GERMINATION IN SOME SPECIES FROM FAMILIES Brassicaceae and Solanaceae

The ability of seeds to germinate at high salt concentration in the soil is crucial importance for the survival and perpetuation of many plant species. Therefore, we examined effects of different concentrations of NaCl (200, 400, 600 and 800 mM) on germination of four species from fam. Solanaceae and Brassicaceae (Capsicum annum, Solanum lycopersicum, Brasica oleracea and Sinapis alba). By this experiment, we wanted to determine which concentrations of salt would not interfere with germination of seeds these plants. The obtained results showed that seeds of all the species germinate only in the lowest concentration of NaCl (200 mM). However, after rinsing with distilled water, seeds of all the examined species, except S. alba, germinate in great number. When GA3 was added, seeds of C. annum germinated in great number, but seeds of other plants did not germinate.