Türk Tarım ve Doğa Bilimleri Dergisi

Yazarlar: Faruk ÖZKUTLU

Konular:Fen

DOI:10.30910/turkjans.712033

Anahtar Kelimeler:Broccoli,Salinity,Cadmium,Dry matter

Özet: Vegetable consumption, as it is more economic, has rapidly increased in developing countries as compared to the developed countries. Cadmium (Cd) accumulation in vegetables is an important environmental problem globally threatening human health. Understanding the response of vegetables to Cd stress and applying management strategies may be helpful to decrease Cd uptake of vegetables. Among the factors, affecting Cd uptake of plants is salinity. Salinity is one of the biggest abiotic stresses in the world. Cadmium occurrence in saline soils makes the problem even worse. In this study, for this reason, three Cd (0.1, 0.5 and 2.5 mg Cd kg-1) and four salt (0, 200, 600 and 1800 mg NaCl kg-1) doses were applied to broccoli plant. Dry matter yield and Cd uptake of green parts were investigated in the study. According to the obtained results, in the dose of 0.1 mg Cd kg-1, dry matter yield in the salt-control plants was 3.59 g plant-1 whereas it decreased as 3.43, 2.83 and 2.36 g plant-1 depending on increasing salt applications. In unsalted and 2.5 mg Cd kg-1 application, dry matter yield was 3.0 g plant-1 while it reached to as 1.64 g plant-1 by increasing almost two-folds with the highest salt dose. It was determined that Cd uptake was increased when the soil contaminated with a low amount of Cd was together with salinity. Although K concentrations in green plant parts tended to decrease in all salt applications, it decreased from 4.19 to 3.06 mg kg-1 in the treatment of 2.5 mg Cd kg-1 and 1800 mg NaCl kg-1. In conclusion, it was found that Cd uptake in broccoli might be high in salty soils and thus there was a need for determining broccoli varieties accumulating lower amount of Cd.

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