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Management of maize stand height using growth regulators

Author

Listed:
  • Tomáš SPITZER

    (Agrotest fyto, s.r.o., Kromeriz, Czech Republic; 2Department of Plant Protection)

  • Petr MÍŠA

    (Agrotest fyto, s.r.o., Kromeriz, Czech Republic; 2Department of Plant Protection)

  • Jan BÍLOVSKÝ

    (Agrotest fyto, s.r.o., Kromeriz, Czech Republic; 2Department of Plant Protection)

  • Jan KAZDA

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

Abstract

Effect in reducing maize plant height using growth regulators ethephon, chlormequat chloride (CCC), CCC + ethephon, and mepiquat chloride + prohexadione-Ca was studied in field experiments during 2010 and 2011. It was found that maize plant height could be reduced by as much as 125 cm (49% of control) using a double application of ethephon (576 g a.i./ha) at growth stages BBCH 18-19 and BBCH 34-36. The other growth regulators displayed weak or no influence. An optimum level of shortening was achieved using ethephon (576 g a.i./ha) at BBCH 34-36 (reducing plant height by 40-90 cm), but it is necessary to count upon yield loss of 0.5-0.6 t/ha.

Suggested Citation

  • Tomáš SPITZER & Petr MÍŠA & Jan BÍLOVSKÝ & Jan KAZDA, 2015. "Management of maize stand height using growth regulators," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 51(4), pages 223-230.
    • Handle: RePEc:caa:jnlpps:v:51:y:2015:i:4:id:105-2014-pps
    DOI: 10.17221/105/2014-PPS
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    References listed on IDEAS

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    1. T. Spitzer & P. Matušinský & Z. Klemová & J. Kazda, 2011. "Management of sunflower stand height using growth regulators," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 57(8), pages 357-363.
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