Glyphosate Resistance Technology Has Minimal or No
Effect on Maize Mineral Content and Yield
Krishna
N. Reddy
James V. Cizdziel
Martin M. Williams
Jude E. Maul
Agnes M. Rimando
Stephen O. Duke
10.1021/acs.jafc.8b01655.s001
https://acs.figshare.com/articles/journal_contribution/Glyphosate_Resistance_Technology_Has_Minimal_or_No_Effect_on_Maize_Mineral_Content_and_Yield/7117655
Controversy
continues to exist regarding whether the transgene
for glyphosate resistance (GR) and/or glyphosate applied to GR crops
adversely affect plant mineral content. Field studies were conducted
in 2013 and 2014 in Stoneville, MS and Urbana, IL to examine this
issue in maize. At each location, the experiment was conducted in
fields with no history of glyphosate application and fields with several
years of glyphosate use preceding the study. Neither glyphosate nor
the GR transgene affected yield or mineral content of leaves or seed,
except for occasional (<5%) significant effects that were inconsistent
across minerals, treatments, and environments. Glyphosate and AMPA
(aminomethylphosphonic acid), a main degradation product of glyphosate,
were found in leaves from treated plants, but little or no glyphosate
and no AMPA was found in maize seeds. These results show that the
GR transgene and glyphosate application, whether used for a single
year or several years, have no deleterious effect on mineral nutrition
or yield of GR maize.
2018-09-11 00:00:00
plant mineral content
maize
IL
GR transgene
Glyphosate Resistance Technology
glyphosate application
AMPA
MS