PJB-2011-19
RESPONSE OF EUCALYPTUS CAMALDULENSIS TO EXOGENOUS APPLICATION OF CADMIUM AND CHROMIUM
F.R. SHAH1, N. AHMAD1, K.R. MASOOD2 D.M. ZAHID3 AND M. ZUBAIR3
Abstract
A pot experiment was conducted to evaluate the effect of synthetic wastewater containing various concentrations of cadmium and chromium on Eucalyptus camaldulensis. Six month-old seedlings of E. camaldulensis were treated with Cd (II) and Cr (VI) for 18 months. Treatments were; T0: (Tap water, control), T1: 0.05 +1.0 mg L-1, T2: 0.10+2.0 mg L-1, T3: 0.20+4.0 mg L-1 and T4: 0.40+8.0 mg L-1 of Cd and Cr respectively. Maximum growth in terms of shoot length (248.33 cm), collar diameter (1.78 cm), number of branches (20), number of leaves (504), root diameter (1.3 cm), leaf fresh weight (166.33 g), stem fresh weight (353.33 g), root fresh weight (201.33 g), leaf oven dry weight (73.67 g), stem oven dry weight (166 g) root oven dry weight (100 g) and root/shoot ratio (0.3) was recorded at T1 treated plants beyond that a gradual decline in growth was observed with a maximum reduction of 10.5
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