of Beta vulgaris exposed to cadmium and
through soil drenching
M. Agrawal2 and S.B. Agrawal2
Institute of Himalayan Environment and Development, Himachal Unit, Mohal,
Kullu-175 126, India
Botany, Banaras Hindu University, Varanasi-221 005, India
Author E-mail: email@example.com
25 May 2012
27 July 2013
19 August 2013
present study investigates the responses of Indian palak (Beta vulgaris L.
cv. All Green H1) exposed to cadmium (Cd) and zinc (Zn) at growth,
biochemical and physiological levels. The results revealed that Cd and Zn
accumulation was higher in shoots as compared to the roots of B. vulgaris
plants. The increased application rates of Zn in combination with Cd
significantly reduced the accumulation of Cd in below and above ground parts
of B. vulgaris, whereas it increased Zn accumulation. Treatments of B.
vulgaris with Cd and Zn individually or in combination significantly
reduced the leaf area, biomass, photosynthetic pigments, photosynthetic rate,
Fv/Fm ratio and protein contents at p<0.05. Contrary to this, lipid
peroxidation, ascorbic acid, proline and thiol contents and peroxidase
activity increased significantly as compared to control at p<0.05. The
results also revealed that the combined effect of Cd and Zn were more
pronounced at higher concentrations as compared to other treatments. Thus,
the present study suggests that Zn may be applied to Cd contaminated field to
reduce Cd accumulation in plants. However, finding of a suitable dose and
toxicity level of Zn must be worked out further its application.
Beta vulgaris, Cadmium, Response, Zinc
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