فهرست مطالب m. niyakan

Salinity stress is an important environmental factor that limits plant growth and production. The harmful effects of salinity on plants have been identified either in the form of plant death or in the form of reduced growth. During salinity stress, various types of reactive oxygen species (ROS) are produced. These radicals give their energy to biological molecules or even react with them and cause their destruction. During salinity stress, protective systems called antioxidant system are activated and control ROS levels in the plant. One of these protective systems is ascorbic acid, which plays an important role in eliminating ROS in plants. In this research, soybean plants were affected by different concentrations of ascorbate (1, 2 mmol) and salt (50 and 150 mmol) and their effects on proline, glycine betaine, phenolic compounds, soluble sugars, sodium and chlorine were evaluated in both aerial and underground parts. it placed. The results of this research showed that in the presence of salt, the amount of sodium, chlorine and the above organic compounds increased, but their amount decreased with the addition of ascorbate.