Abstract
Radish (Raphanus sativus L.) was grown in earthen pots cantaini•8 soils of three different textures (clay loam, sandy clay loam and sandy loam) and treated separately with different levels of cadmium (0, 1, 3, 5, 7 and 9 mg Cd k8 soil) and lead (0, 10, 20, 30, 40 and 50 mg Pb kg!’ soil). Shoot and root dry weights were reduced to 25-38Wo and 36-464a, respectively at the highest Cd treatment, and 28-33 and 35-53Wo, respectively at the highest Pb treatment as compared to the control treatment.Cadmium and Pb application with higher rates significantly decreased the shoot and raot yield of radish. Cadmium and Pb concentration in shaot and root increased with rate of Cd and Pb application, respectively. The concentration of Cd started to increase significantly at 3 mg Cd kg!’ soil treatment as compared to the control except for shoat in sandy loam soil. Lead treatment at 10 mg Pb kg!’ soil caused significantly higher Pb concentration in shoot and root from the control in all the three soils. Among the soils, Cd and Pb concentration in shoot and root were pronounced in sandy loam soil. Total accumulation of Cd showed almost the similar trend as that of Cd concentration in shoot and root. Lead accumulation in raat did not show any definite trend of variation with Pb application in sandy loam and sandy clay loam soil. Bioacctimulation coefficients of Cd and Pb were higher in shoot than roat. Cadmium and Pb concentration in plant parts were highly correlated with Cd and Pb application in soils respectively.
M.G. Kibria, K.T. Osman’ , M.J. Ahmed. (2007) Cadmium and lead uptake by radish \Raphanus sativus L.) grown in three different textured soils, The Journal Soil & Environment , Volume 26, Issue 2.
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