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| Titel |
Cadmium Contents of Soils, Durum, and Bread Wheats in Harran Plain, Southeast Turkey |
| VerfasserIn |
Asuman Büyükkiliç, Ahmet Mermut, Ángel Faz Cano, Doria Carmona Garces |
| Konferenz |
EGU General Assembly 2010
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 12 (2010) |
| Datensatznummer |
250045040
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| Zusammenfassung |
| Turkey is growing significant amount of durum wheat (Triticum turgidum durum -
(Desf.)Husn) which is widely used for making pasta, spaghetti, noodles etc. Objective of this
study were to: 1) determine Cd concentrations of the soils, durum and bread wheats
grown in the Harran plain, southeast Turkey and 2) evaluate this element in terms of
food safety. Soil samples from the selected 16 profiles, grains, roots, and leaves of
durum and bread wheats were taken for analyses. Total Cd contents of the soils were
below the threshold values. The soils in the northern part of the plain have more
than 0.2 ppm of Cd. Carbonate and clay contents are > 15% and 40% respectively
and have substantial amounts of Fe-oxy-hydroxides. Three phosphorus fertilizer
samples, frequently used in the area, had > 2 ppm of Cd. As expected, the amounts
of Cd in bread wheat were lower than durum wheat. However, the Cd contents
in durum wheat grains in the area studied were < 50 μg kg-1 which is less than
those in Canada (> 100 μg kg-1) and similar to the drum grains from Italy. Some
samples in Italy even had 71 μg kg-1. These were attributed to the presence of high
amounts of carbonates, Fe-oxy-hydroxides, and clay in the soils we studied. In
the surface soil, Zn contents were between 21.5 and 72.8 mg kg-1.This could be
another reason for lower contents of Cd in our durum wheat. Our study confirms
that durum wheat grown in the Harran plain southeast Turkey has a better quality,
therefore advantageous; in terms of food safety from the standpoint of Cd contents. |
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