Tuz Stresine Maruz Bırakılan Aspir (Carthamus tinctorius L.)’in verdiği Morfolojik, Fizyolojik ve Biyokimyasal Cevaplar

Abstract

The morphological, physiological (biomass, water content-WC) and biochemical (proline-pro, membrane damage-malondialdehyde-MDA, H2O2 content) responses of mature seeds of safflower (Carthamus tinctorius L.) to against NaCI salt stress factor in different concentrations (0, 50, 75, 150, 300 mM) were investigated in in vitro conditions. At the end of the 3-week period, it was determined that NaCl salt factor had a negative effect on germination percentages. The percentage of germination was 100% in the control group, while it decreased to 30% in 150 mM NaCl and 5% in 300 mM. In general, morphological development of seedlings was significantly slowed down and seedling growth was not observed at 300 mM concentration. It was determined that the water content (WC), fresh weights, shoot and root length decreased in all NaCl concentrations but there was no significant decrease in dry weights. MDA, pro and H2O2 contents increased in safflower seedlings in parallel with the intensity of salt treatments. The highest MDA and pro content was found in 150 mM NaCl treatment and the highest H2O2 content in 75 mM NaCl treatment.