Effects of different salt sources on growth, inorganic ions and proline accumulation in corn ( Zea mays L.)
Year: 2005
Type: article
Abstract: Summary The effects of salinity on some agro-physiological properties, such as dry matter, nutrient contents, chlorophyll contents, and ionic balance, of maize plants were investigated. Plants were treated with six salt sources (NaCl, Na 2 SO 4 , CaCl 2 , CaSO 4 , MgCl 2 and MgSO 4 ) at four concentrations (0, 40, 80 and 120 mM) for 30 days in a growth medium. Salt type and concentration affected soil pH and electrical conductivity. Soil salinity affected the parameters considered and changed the nutrient balance of the 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 were obtained for NaCl application followed by Na 2 SO 4 , CaCl 2 , MgCl 2 , CaSO 4 and MgSO 4 . Total chlorophyll and nitrate contents of the plants decreased with increasing salt concentrations, and the lowest value was obtained for NaCl application. Proline contents of the plants were increased with increasing salt concentrations, and the highest value was obtained for 120 mM NaCl application. The effects of salt concentrations on N, K and P contents of the plants were significant. The highest reduction rate was determined with NaCl application, but the lowest with MgSO 4 . Fe, Mn and Cu contents of the plants showed similar variation: the highest reduction was recorded with NaCl and the lowest with CaCl 2 . The highest decrease in Zn content occurred with MgSO 4 application, but the lowest with NaCl.
Institution: Atatürk University
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: hybrid
OpenAlex ID: W2489835027