The Effects of Ca Application on Some Stress Parameters of Limonium sinuatum Under Salinity Conditions in The Greenhouse Growing

Abstract

The research was conducted to determine the effects of calcium on some stress parameters (i.e. leaf relaive water content, chlorophyll, carotenoid, proline and lipid peroxidase) of Limonium sinuatum plant, grown under saline conditions. 20 mM and 30 mM Ca+2 calcium applications reduce the negative impact of salt on Limonium sinuatum cultivation under saline soil greenhouse conditions. Under saline conditons, calcium applications decreased the negative effect of the salt on the leaf relative content and carotenoid. Chlorophyll a, chlorophyll b, and total chlorophyll values have shown positive impact at the dosage of 1 %. The highest dose of calcium, 30 mM Ca+2 application, reduced the proline content up to 60 % when the proline values are considered. The similar situation was also observed in terms of MDA content and significant decreases are identified in MDA contents. Although the significant difference is not important, 20 mM Ca+2 doses of calcium application has positive effects considering the number of flowers, the length of flower stem and the thickness of flower stem.