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Publication
Effects of salinity on the Macro- and Micronutrient contents of a Halophytic Plant Species (Portulaca oleracea L.)
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Advisor(s)
Abstract(s)
The main purpose of the two consecutive experimental studies presented here was to
compare the effect of salinity on nutrients in leaves of the halophytic plant species Portulaca oleracea L.
and in soil. The first experiment was conducted to study the effect of salinity on plant growth, biomass
accumulation, yield, root layer development, salt accumulation, and the dynamics of changes in
mineral substances in plants and soil. In the second experiment, P. oleracea seeds were sown directly
into salinized soil (treated immediately before plant growth) to determine the nutrient levels in leaves
and soil. Three salinity treatments (saline water solution with NaCl: T1, 5 dS m−1
; T2, 9.8 dS m−1
;
and T3, 20 dS m−1
) and a control treatment (T0, 1 dS m−1
) were used in the first experiment. The soil
in the second experiment was used in a previous study (performed immediately before P. oleracea
growth) (salinized soil: T1, 7.2 dS m−1
; T2, 8.8 dS m−1
; T3, 15.6 dS m−1
; T0, 1.9 dS m−1
). The plants
were irrigated with tap water at amounts in the range of 0.25–0.50 L/pot. Analysis of the experimental
results showed that P. oleracea is resistant to salinity, is able to remove ions (400–500 kg ha−1 NaCl),
and can be grown in saline soil. The results indicated that P. oleracea is able to grow in high-salinity
soil. This finding was confirmed by the dry matter obtained under high-salinity conditions. Salinity
stress affected nutrient uptake in leaves and soil.
Description
Keywords
Nutrients Halophytic Saline soil Biomass accumulation Salt accumulation
Citation
Land 10 (5): 481 (2021)
Publisher
MDPI