Acta Physiologiae Plantarum

, Volume 32, Issue 5, pp 831–837

Glyphosate affects lignin content and amino acid production in glyphosate-resistant soybean

  • Luiz Henrique Saes Zobiole
  • Edicléia Aparecida Bonini
  • Rubem Silvério de OliveiraJr.
  • Robert John Kremer
  • Osvaldo Ferrarese-Filho
Original Paper

DOI: 10.1007/s11738-010-0467-0

Cite this article as:
Zobiole, L.H.S., Bonini, E.A., de Oliveira, R.S. et al. Acta Physiol Plant (2010) 32: 831. doi:10.1007/s11738-010-0467-0

Abstract

Farmers report that some glyphosate-resistant soybean varieties are visually injured by glyphosate. Glyphosate is the main herbicide that directly affects the synthesis of secondary compounds. In this work, we evaluated the effect of increasing rates of glyphosate on lignin and amino acid content, photosynthetic parameters and dry biomass in the early maturity group cultivar BRS 242 GR soybean. Plants were grown in half-strength complete nutrient solution and subjected to various rates of glyphosate either as a single or in sequential applications. All parameters evaluated were affected by increasing glyphosate rates. The effects were more pronounced as glyphosate rates increased, and were more intense with a single total application than sequential applications at lower rates.

Keywords

Glyphosate-resistant soybean Glyphosate Lignin Photosynthesis 

Abbreviations

A

Net photosynthesis

cv.

Cultivar

DAE

Days after emergence

a.e.

Acid equivalent

GR

Glyphosate-resistant soybean

Copyright information

© Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, Kraków 2010

Authors and Affiliations

  • Luiz Henrique Saes Zobiole
    • 1
  • Edicléia Aparecida Bonini
    • 2
  • Rubem Silvério de OliveiraJr.
    • 1
  • Robert John Kremer
    • 3
  • Osvaldo Ferrarese-Filho
    • 2
  1. 1.Center for Advanced Studies in Weed Research (NAPD)State University of Maringá (UEM)MaringáBrazil
  2. 2.Department of BiochemistryUniversity of MaringáMaringáBrazil
  3. 3.United States Department of Agriculture, Agricultural Research ServiceCropping Systems and Water Quality Research UnitColumbiaUSA

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