Plant Soil Environ., 2009, 55(5):213-221 | DOI: 10.17221/383-PSE

Mitigation of salt stress in strawberry by foliar K, Ca and Mg nutrient supply

E. Yildirim1, H. Karlidag1, M. Turan2
1 Atatürk University, Ispir Hamza Polat Vocational Training School, Ispir, Erzurum, Turkey
2 Atatürk University, Faculty of Agriculture, Department of Soil Science, Erzurum,

Plant root and shoot dry weight, leaf relative water content (LRWC) and chlorophyll content were reduced by 30%, 21%, 15%, 34%, respectively, at 40mM NaCl as compared to non-salt stress conditions. However, membrane permeability (MP) of plant increased (85.0%) with increasing salinity. Foliar nutrient application (FNA) alleviated deleterious effects of salinity stress on growth and this effect was statistically significant. The highest alleviation effect of FNA at 40mM salinity stress was observed in the case of 10mM foliar KNO3 and Ca(NO3)2 application, resulting in increase in plant root dry weight (50%), shoot dry weight (50%), LRWC (8.2%) and MP decrease (27.4%) at 40mM NaCl. Phosphorus, Fe and Zn contents in shoots and roots of plants also increased with FNA treatments, but they were still much lower than those of non-salt stress treatment. Sulphur, P, Fe and Zn contents of shoots reached similar values as in non-salt stress treatment when KNO3 was applied, whereas Fe, Mn, Zn, and Cu contents of roots reached the values of non-salt stress treatment when Ca(NO3)2 was applied.

Keywords: alleviation; foliar application; NaCl salinity; minerals content

Published: May 31, 2009  Show citation

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Yildirim E, Karlidag H, Turan M. Mitigation of salt stress in strawberry by foliar K, Ca and Mg nutrient supply. Plant Soil Environ. 2009;55(5):213-221. doi: 10.17221/383-PSE.
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