Articles
Effect of salinity on behavior of some cations in strawberry (Fragaria × ananassa) plant organs
Article number
1177_52
Pages
361 – 368
Language
English
Abstract
We studied the influence of the three salinity levels on the uptake, distribution and ratio of sodium, potassium, calcium and magnesium in strawberry (Fragaria × ananassa) plant organs.
Salinity levels of the growth medium were modified by addition of NaCl to the irrigation water.
Treatments were: non-saline conditions (control) = 0.73 mS cm-1 (0 g NaCl), medium salinity (MS) = 4.37 mS cm-1 (2 g NaCl) and high salinity (HS) = 7.81 mS cm-1 (4 g L-1 NaCl). The average sodium content (based on dry matter) was increased in all strawberry plant organs (3.5 times in fruits to 19.4 times in young leaves relative to the control); potassium content was reduced 2.5% in young leaves to 31.3% in roots, and increased in fruits by 10.2%; calcium was reduced in roots and fruits (20 and 24.7%), and was increased in floral shoots (35.4%); magnesium was not affected in old and young leaves, but was reduced in the roots and fruits (6 and 5.6%), and increased in floral shoots (6.7%). Increased salinity had the most significant impact on the uptake of potassium, followed by calcium and magnesium.
Moreover, it resulted in the reduction of the K/Na, Ca/Na, Mg/Na and K/Mg ratio in all plant parts, and the reduction of the K/Ca ratio in all plant parts except young leaves and fruits.
The Mg/Ca ratio decreased in old leaves and floral shoots while it increased in roots and strawberries fruits.
Salinity levels of the growth medium were modified by addition of NaCl to the irrigation water.
Treatments were: non-saline conditions (control) = 0.73 mS cm-1 (0 g NaCl), medium salinity (MS) = 4.37 mS cm-1 (2 g NaCl) and high salinity (HS) = 7.81 mS cm-1 (4 g L-1 NaCl). The average sodium content (based on dry matter) was increased in all strawberry plant organs (3.5 times in fruits to 19.4 times in young leaves relative to the control); potassium content was reduced 2.5% in young leaves to 31.3% in roots, and increased in fruits by 10.2%; calcium was reduced in roots and fruits (20 and 24.7%), and was increased in floral shoots (35.4%); magnesium was not affected in old and young leaves, but was reduced in the roots and fruits (6 and 5.6%), and increased in floral shoots (6.7%). Increased salinity had the most significant impact on the uptake of potassium, followed by calcium and magnesium.
Moreover, it resulted in the reduction of the K/Na, Ca/Na, Mg/Na and K/Mg ratio in all plant parts, and the reduction of the K/Ca ratio in all plant parts except young leaves and fruits.
The Mg/Ca ratio decreased in old leaves and floral shoots while it increased in roots and strawberries fruits.
Publication
Authors
A. Biško
Keywords
NaCl, sodium, potassium, calcium, magnesium
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