Kadmiyum ve Kurşun Toksisitesinin Çilek Bitkisinde (Fragaria × ananassa) Bazı Büyüme Parametreleri Üzerine Etkileri

Öz

Ağır metaller bitkiler için ana besin elementi olmayan, genellikle toksik etkiye sahip bitki gelişimini kısıtlayan önemli çevresel kirliliklerdir. Bu çalışma, (Cd) ve Kurşun (Pb) toksisitesinin Çilek (Camarosa) bitkisinde bazı büyüme parametreleri üzerine etkilerini belirlemek amacıyla yürütüldü. Bu amaçla çalışmada, kadmiyum (0 (kontrol), 15, 30, 45 ve 60 mg.kg⁻¹) ve kurşunun (0 (kontrol), 20, 60 ve 80 mg.kg⁻¹) farklı dozları kullanıldı. Çalışma sonuncunda, kök sayısı, kök ağırlığı, gövde ağırlığı, yaprak sayısı, yaprak ağırlığı ve yaprak alanı kontrole göre 60 mg kg⁻¹ kadmiyum uygulamasında sırasıyla %32, %40, %53, %38, %55 ve %24 oranında ve 80 mg kg⁻¹ kurşun uygulamasında ise sırasıyla %49, %30, %50, %38, %50 ve %28 oranında düşüş belirlendi. Çilek bitkisinde, artan Cd ve Pb uygulamasının büyüme üzerine engelleyici etkisi artan dozla orantılı olarak düşüş göstermiş ve çilek bitkisinde Cd toksisitesi, Pb toksisitesinden daha yüksek olduğu tespit edilmiştir.

Anahtar Kelimeler

• Ağır metal toksisitesi
• kadmiyum
• kurşun
• çilek

The Effect of Cadmium and Lead Toxicity on Some Growth Parameters in Strawberry (Fragaria × ananassa) Plant

Öz

Heavy metals which are not the essential plant nutrients for plants, generally have toxicity effect, restricting plant growth are important environmental pollutions. This study was conducted to determine the effect of (Cd) and lead (Pb) toxicity on some growth parameters in Strawberry (Camarosa) plant. For this purpose, cadmium concentration 0 (control), 15, 30, 45 and 60 mg.kg⁻¹ and lead concentration 0 (control), 20, 60 and 80 mg.kg⁻¹ were used. The results present in this work show that root number, root weight, body weight, leaf weight, leaf number and leaf area were decrease 32%, 40%, 53%, 38%, 55% and 24% in 60 mg kg⁻¹ of Cd applications respectively and in 80 mg kg⁻¹ of Pb applications also 49%, 30%, 50%, 38%, 50% and 28% decrease were determined compare with control respectively. Increasing Cd and Pb concentrations show a decrease at increase rate on growth and Cd toxicity was found higher than Pb toxicity in strawberry plant.

Anahtar Kelimeler

• Heavy metal toxicity
• cadmium
• lead
• strawberry

Kaynakça

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