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Cadmium uptake and translocation in durum wheat varieties differing in grain-Cd accumulation

Author

Listed:
  • I. Arduini

    (Department of Agricultural, Food and Agro-Environmental Sciences, University of Pisa, Pisa, Italy)

  • A. Masoni

    (Department of Agricultural, Food and Agro-Environmental Sciences, University of Pisa, Pisa, Italy)

  • M. Mariotti

    (Department of Veterinary Sciences, University of Pisa, Pisa, Italy)

  • S. Pampana

    (Department of Agricultural, Food and Agro-Environmental Sciences, University of Pisa, Pisa, Italy)

  • L. Ercoli

    (Scuola Superiore Sant'Anna, Pisa, Italy)

Abstract

Wheat grain products are the primary source of dietary Cd-intake for humans. Since varieties differ markedly in grain-Cd accumulation, efforts are needed to find traits associated with low, or high, accumulation. Two durum wheat varieties, selected in a field screening as low (Creso) and high (Svevo) grain-Cd accumulating, were grown on soil spiked with 1.5, 3 and 4.5 mg Cd/kg. Growth patterns, Cd uptake and translocation were investigated at heading and maturity. Cadmium did not affect plant growth and grain yield, but grain-Cd concentration always exceeded the permissible limit of 0.2 mg Cd/kg, and was approximately double in Svevo than in Creso. At maturity, total Cd-uptake increased linearly with supply in Creso, from 13 to 23 µg/plant, and was approximately 18 µg/plant, irrespective of Cd level, in Svevo. Partitioning to shoot was higher in Svevo than in Creso, both at heading and maturity. We suggest that reduced plant height, high root to shoot biomass ratio during vegetative growth and elevated post-heading dry matter accumulation promoted Cd accumulation into grain. Since these traits are common to modern wheat varieties, risks of grain Cd-contamination can increase in the future.

Suggested Citation

  • I. Arduini & A. Masoni & M. Mariotti & S. Pampana & L. Ercoli, 2014. "Cadmium uptake and translocation in durum wheat varieties differing in grain-Cd accumulation," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 60(1), pages 43-49.
    • Handle: RePEc:caa:jnlpse:v:60:y:2014:i:1:id:416-2013-pse
    DOI: 10.17221/416/2013-PSE
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    Cited by:

    1. B. Symanowicz & S. Kalembasa & D. Jaremko & M. Niedbała, 2015. "Effect of nitrogen application and year on concentration of Cu, Zn, Ni, Cr, Pb and Cd in herbage of Galega orientalis Lam," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 61(1), pages 11-16.

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