Bu araştırma, Konya Ovası ana tahliye kanalı civan ve Çumra yöresindeki hububat yetiştirilen tarla toprakları ile ekmeklik ve makarnalık buğday örneklerinde Cd birikiminin belirlenmesi amacıyla yapılmıştır. Kentsel ve sanayi atıkları ile drenaj kanallarının tuzlu sularının karıştığı ana tahliye kanalından sulama yapılan 15, Çumra yöresinden de 20 farklı tarladan alınan toprak örneği ile buğday çeşitlerinin yaprak ve dane örneklerinde Cd düzeyleri ICP-AES cihazında tespit edilmiştir. Araştırma sonuçlarına göre, toprak ve bitki örneklerinde insan ve hayvan sağlığı açısından Cd birikiminin önemli olmadığı belirlenmiştir. Kadmiyum ortalamaları toprakta 10.85, yaprakta 31.27 ve danede ise 21.28 ppb (kuru madde) olarak bulunmuştur. Toprağın Cd içeriği ile organik madde, EC ve kireç kapsamı arasında önemli negatif, pH ve şilt muhtevası arasında ise önemli pozitif bir ilişki saptanmıştır. Yapraktaki Cd ile toprak Cd'u, pH, ve kum yüzdesi arasında önemli negatif, EC, kireç ve kil içerikleri arasında da önemli pozitif bir ilişki tespit edilmiştir. Diğer taraftan, danenin Cd konsantrasyonu ile toprağın Cd konsantrasyonu ve pH değerleri arasında ise önemli pozitif bir ilişki belirlenmiştir. Ayrıca, ana tahliye kanalı civarındaki topraklarda Cd kapsamı (4.37 ppb), Çumra yöresi topraklarınınkinden (15.72 ppb) daha düşük bulunmuştur. Ana tahliye kanalı civarında yetiştirilen buğdayların yapraklanndaki Cd, Çumra yöresindekine oranla daha yüksek, danelerindeki Cd ise daha düşük elde edilmiştir.

The investigation was carried out to determine the degree of cadmium accumulation in the samples of wheat plants grown for the production of bread and macaroni and also in the soil samples collected from the agricultural land on which cereals have been grown around the Main Drainage Canal and also in the vicinity of Çumra town on the Konya Plain. The number of the soil and plarst samples collected froin the agricultural fields irrigated with water of the Main Drainage Canal containing both industrial and also municipal waste waters was 15 whereas those collected from the various agricultural lands in the vicinity of Çumra was almost 20. The Cd contents of the of the soil samples and also of the leaf and specimens of the wheat plant samples were determined with the ICP-AES instrumental system. According to the research data evaluated, it was found that the average amounts of Cd contents determined in the soil, leaf and grain samples were 10.85 $\mu g kg^{-1}$, $31.27 $\mu g kg^{-1}$ and 21.28 fig kg"1 respectively. Thus it was concluded that Cd accumulations in the soils and plant samples were lower than the critical toxic levels for animals and also for human beings. Meanwhile, negative correlations were found between Cd content of the soil samples and such parameters of the soil samples as EC values, organic matter and lime contents, whereasthe correlation coefficient calculated between Cd content of the soil samples and pH values and silt content were found to be positive. In addition, it was determined that the Cd of the leaf specimen was negatively correlated with the soil parameters such as Cd content, pH and sand percentage while the Cd contents of the leaf specimens were positively correlated to the EC value, lime and clay contents of the soil samples. On the other hand, the relationships were found between the Cd contents of the grain and the soil characteristics such as pH and Cd contents of the soil Besides, average Cd content (i.e. 4.37 $\mu g kg^{-1}$) of the soil samples collected from the vicinity of the Main Drainage Canal was less that (i.e. 15.72 $\mu g kg^{-1}$) of soiLsamples from the around of Çumra town. On the contrary the Cd accumulations in the plant from the fields around the Main Drainage Canal were found to be higher than those of the plant samples collected the vicinity of Çumra. However, the Cd contents of grain samples collected from fields the Main Drainage Canal were surprisingly lower than those of the grain samples from the fields of Çumra