The effect of salinity stress on germination parameters in Satureja thymbra L. (Lamiaceae)

Authors : Ummahan ÖZ

Pages : 74-90

Doi:10.21448/ijsm.1025295

View : 13 | Download : 8

Publication Date : 2022-03-10

Article Type : Research Paper

Abstract :Salinity is an important problem all over the world. The destructive effect of salinity is observed from the seed germination stage. In this study, it was aimed to determine the effect of salinity on seed germination of the medically important Satureja thymbra L., whether pre-treatments are a factor in breaking the salinity stress, and to determine the level of salinity tolerance of this species. In the research, firstly, the seeds were exposed to two pre-treatments insert ignore into journalissuearticles values(80°C insert ignore into journalissuearticles values(5 minutes); + 10 ppm GA3 insert ignore into journalissuearticles values(24 hours);, 80°C insert ignore into journalissuearticles values(5 minutes); + 100 ppm GA3 insert ignore into journalissuearticles values(24 hours);); and then 8 different NaCl concentrations insert ignore into journalissuearticles values(0.1 g/l, 1 g/l, 2.5 g/l, 5 g/l, 7.5 g/l,10 g/l, 15 g/l and 30 g/l); were tried. Germination seeds were counted every day and the effects of salinity on germination characteristics were investigated. The highest germination percentage insert ignore into journalissuearticles values(90%); was obtained at 0.1 g/l NaCl after 80°C insert ignore into journalissuearticles values(5 min.); + 100 ppm GA3 insert ignore into journalissuearticles values(24 h.); pre-treatment. The results showed that the effect of salinity was significant on germination parameters in p < 0.05. Obtained results showed that the highest NaCl concentration at which Satureja thymbra seed could germinate was 10 g/l.
Keywords : Satureja thymbra, Germination, Salinity, Stress, Pre treatment