| Abstrakt: |
Salinity is one of the most significant abiotic stresses for plant growth. This study aims to study how salinities on the C. demersum L plant, by using sodium chloride (NaCl) and sodium sulfate (Na2SO4) separately as well as in combination, affect fresh weight, relative plant growth, total chlorophyll and protein, and proline content. The experiments were conducted for 14 days. The result showed that the effect of Na2SO4 salt is more toxic than NaCl. Whereas the combined experiments with both salts show that their effects together were more harmful to the plant species at the same concentrations. The findings also revealed that high salt concentrations had a significant impact on the morphological and physiological characteristics. In the experiment assessing the impact of salt stress on plant growth and physiology, the treatment with a combination of 75 mM NaCl and 75 mM Na2SO4 resulted in significant reductions in several key parameters compared to the control group. Specifically, the treatment led to decreases in fresh weight (from 18.742 g to 5.723 g), dry weight (from 2.543 g to 0.845 g), relative growth rate (from 1.236 to 0.380), total chlorophyll content (from 10.212 µg/g to 2.699 µg/g), and protein content (from 42.03% to 30.180%). Additionally, this salt stress condition was associated with an increase in proline content, indicating a physiological response to the imposed salt stress. These results highlight the negative effects of elevated salt concentrations on plant growth and metabolic functions. [ABSTRACT FROM AUTHOR] |
