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Zinc fertilization alters flour protein composition of winter wheat genotypes varying in gluten content

Author

Listed:
  • H.E. Liu

    (Resources and Environment College, Henan Agricultural University, Zhengzhou, P.R. China)

  • Q.Y. Wang

    (Resources and Environment College, Henan Agricultural University, Zhengzhou, P.R. China)

  • Z. Rengel

    (Soil Science and Plant Nutrition, School of Earth and Environment, UWA Institute of Agriculture, University of Western Australia, Crawley, Australia)

  • P. Zhao

    (Resources and Environment College, Henan Agricultural University, Zhengzhou, P.R. China)

Abstract

Wheat flour protein components affect the processing quality of wheat. While it is known that zinc (Zn) fertilization can change flour protein content, there is little knowledge about Zn influence on flour protein composition. A pot experiment was conducted with five Zn fertilization treatments and three wheat genotypes differing in protein concentration and gluten composition. Zn fertilization up to 10 mg Zn/kg soil increased activity of nitrate reductase and glutamine synthetase in flag leaves after flowering, but 40 mg Zn/kg soil caused a genotype-dependent decline in these activities. Similarly, an increase in Zn fertilization was associated with a genotype-dependent increase in grain protein content and concentrations of gliadins, glutenins, albumins and globulin in flour, followed by a decrease of all three protein types at 40 mg Zn/kg soil. These results demonstrate that Zn nutrition can alter flour protein content and composition in wheat that has differential end uses, influencing flour quality.

Suggested Citation

  • H.E. Liu & Q.Y. Wang & Z. Rengel & P. Zhao, 2015. "Zinc fertilization alters flour protein composition of winter wheat genotypes varying in gluten content," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 61(5), pages 195-200.
    • Handle: RePEc:caa:jnlpse:v:61:y:2015:i:5:id:817-2014-pse
    DOI: 10.17221/817/2014-PSE
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