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American Journal of Plant Physiology
Year: 2008  |  Volume: 3  |  Issue: 2  |  Page No.: 89 - 95

Nutritional Status in Shoots of Barley Genotypes as Affected by Salinity of Irrigation Water

Mahmoud M. Shaaban, Mohamed M. Housein and Abdel-Kareem M. El-Saady    

Abstract: Pot experiment was conducted in the greenhouse of National Research Centre with 6 barley (Hordeum vulgaris L.) genotypes (Giza 123, Giza 124, Giza 125, Giza 126, Giza 127 and Giza 128) to investigate the effect of different salinity levels (250, 2000, 4000 and 6000 mg L1) in the irrigation water on the nutrient status (uptake, concentrations and balance) in the shoot tissues. Variations in genotypic tolerance to salinity stress were also under investigation. Uptakes of N, P, K, Mn and Cu were significantly declined as salinity dose in the irrigation water increased. The most affected nutrient ratios were N/P, P/Mn and P/Zn. Concentrations of nutrients in all studded genotypes were disturbed and N-concentration was deficient in the shoot tissues of all genotypes grown under salinity stress, except of Giza 127. Nutrient balances in all genotypes under investigation were also disturbed. Giza 127 was the only genotype which nutrient ratios in its shoot tissues were near to the sufficient ranges.

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