Research Article Open Access

Physiological and Biochemical Evaluation of Fe-Efficiency in Fe-Deficient Maize Genotypes

Entesar M. Essa1, Sahar M. Zaghloul1, Z.A. Salama2, F. A. Rakha3, Y. Mabrouk3, A. A. El-Bendary1 and Mohamed M. El-Fouly4
  • 1 Department of Plant Nutrition, National Research Centre, Cairo, Egypt
  • 2 Department of Plant Biochemistry, National Research Centre, Cairo, Egypt
  • 3 Department of Genetics, Faculty of Agriculture, Alexandria University, Egypt
  • 4 Department of Fertilization Technology, National Research Centre, Cairo, Egypt

Abstract

Iron (Fe) deficiency is prevalent particularly in calcareous soils of arid and semiarid regions. The present study aimed to investigate the response of eight local maize genotypes to Fe deficiency. In addition, a Fe- efficient (WF9) and a Fe-inefficient (ys1) indicator genotypes were used in this study. All genotypes were grown in growth chamber for 21 days in two levels of Fe, sufficient [+Fe (FNS) = 20 µM Fe EDTA] and deficient [-Fe (FNS) = 2 µM Fe EDTA] Fe supply. Shoots dry weight, Fe concentration and uptake in shoots, active iron concentration, peroxidase activity and cholorophyll content were determined and their validities as screening parameters were discussed. Generally, genotype (WF9) as the Fe efficient indicator and genotype (34) were the less affected by Fe-deficiency. Genotype (ys1) as the Fe inefficient indicator and genotype (62) were highly affected when grown in the nutrient solution with the deficient Fe supply. The present study emphasize that shoot dry weight, Fe uptake, active Fe content, chlorophyll content and peroxidase activity could be used for evaluating the present maize genotypes for Fe efficiency.

American Journal of Agricultural and Biological Sciences
Volume 10 No. 1, 2015, 55-62

DOI: https://doi.org/10.3844/ajabssp.2015.55.62

Submitted On: 12 March 2015 Published On: 22 April 2015

How to Cite: Essa, E. M., Zaghloul, S. M., Salama, Z., Rakha, F. A., Mabrouk, Y., El-Bendary, A. A. & El-Fouly, M. M. (2015). Physiological and Biochemical Evaluation of Fe-Efficiency in Fe-Deficient Maize Genotypes. American Journal of Agricultural and Biological Sciences, 10(1), 55-62. https://doi.org/10.3844/ajabssp.2015.55.62

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Keywords

  • Maize Genotypes
  • Fe Efficiency