Akademik Veri Yönetim Sistemi
EUROPEAN JOURNAL OF HORTICULTURAL SCIENCE, cilt.70, sa.3, ss.149-155, 2005 (SCI-Expanded)
The effect of salinity on some agro-physiological properties, such as dry matter, nutrient contents, chlorophyll contents, and ionic balance of corn plants, were investigated. Plants were treated with six salt sources (NaCl, Na2SO4, CaCl2, CaSO4, MgCl2, MgSO4) and four concentrations (0, 40, 80, and 120 mM doses) for 30 days in a growth media. Salt type and doses affected soil pH and electrical conductivity. Soil salinity affected the parameters considered and changed the nutrient balance of plants. High salt concentration caused substantial reduction in plant growth. Different salt concentrations negatively affected plant dry weight. The highest decrease rates of plant dry weight was obtained for NaCl application followed by Na2SO4, CaCl2, MgCl2, CaSO4 and MgSO4. Total chlorophyll and nitrate contents of plants decreased with increasing salt doses, and the lowest value was obtained for NaCl application. Proline contents of plant were increased with increasing salt doses, and the highest value was obtained for 120 mM NaCl application. The effects of salt concentrations on N, K and P content of plants were significant. The highest decrease rate was determined with NaCl application, but the lowest with MgSO4. Iron, Mn and Cu content of plants showed similar variation, as the highest for NaCl, and Na2SO4, and the lowest for CaCl2 and CaSO4. The highest decrease in Zn content occurred with MgSO4 application, but the lowest with NaCl.