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Interactions between nitrogen nutrition and phytohormone levels in Festulolium plants

Author

Listed:
  • D. Pavlíková

    (Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic)

  • M. Neuberg

    (Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic)

  • E. Žižková

    (Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Prague, Czech Republic)

  • V. Motyka

    (Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Prague, Czech Republic)

  • M. Pavlík

    (Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Prague, Czech Republic)

Abstract

This study aims to reveal and to compare effect of two various systems of nitrogen nutrition, namely injection and sidedress application, on the levels of NO3- and phytohormones (cytokinins, abscisic acid (ABA), indole-3-acetic acid (IAA)) in Festulolium plants. Calcium nitrate (CN) or ammonium sulphate (AS) were used as N source in the pot experiment. The yield of Festulolium above and below ground biomass was more substantially enhanced after sidedress application of both AS or CN in comparison with injection application. The levels of endogenous cytokinins peaked 5 days after application regardless the form of N source and the method of application. The increased concentration of endogenous cytokinins as well as the enhanced content of selected free amino acid suggest that N applied sidedress can maintain better distribution patterns of nutrients and provide improved conditions for growth and nitrogen uptake. The nitrogen application affected ABA concentrations on all tested treatments. The correlation between NO3- and ABA concentrations ranged from 0.77 to 0.89. A significant IAA increase was recorded in plants after ammonium nitrogen sidedress application and it was confirmed that applications of nitrate reduced IAA concentration (correlation between NO3- and IAA for AS treatment R2 = 0.77-0.94).

Suggested Citation

  • D. Pavlíková & M. Neuberg & E. Žižková & V. Motyka & M. Pavlík, 2012. "Interactions between nitrogen nutrition and phytohormone levels in Festulolium plants," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 58(8), pages 367-372.
    • Handle: RePEc:caa:jnlpse:v:58:y:2012:i:8:id:367-2012-pse
    DOI: 10.17221/367/2012-PSE
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    References listed on IDEAS

    as
    1. O. Kozlovský & J. Balík & J. Černý & M. Kulhánek & J. Hakl & A. Kohoutek, 2010. "Assessment of surface and injection fertilization on various grass hybrids in grass-clover mixture," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 56(12), pages 557-563.
    2. M. Neuberg & D. Pavlíková & M. Pavlík & J. Balík, 2010. "The effect of different nitrogen nutrition on proline and asparagine content in plant," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 56(7), pages 305-311.
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