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Golden Valley, Minnesota
February 26, 2009
2008 data indicates yield gains
of up to 10.6 bu/A under no/minimal insect pressure in
combination with lower rainfall conditions
Agrisure® RW hybrids are accepted
tools for boosting yields in corn crops with corn rootworm
pressure; however, new data from Syngenta indicates hybrids
containing the Agrisure RW trait, such as the Agrisure 3000GT
triple stack, may generate incremental yield increases even in
the absence of such pest pressure, and especially under stress
conditions such as drought.
Syngenta strip trials* in 2007 and 2008 compared yield
performance of either Agrisure 3000GT hybrids or Agrisure
CB/LL/RW hybrids to their respective Agrisure CB/LL isolines.
Following a crop other than corn and using local best management
practices, the hybrids containing the Agrisure RW trait posted
an average 3 bu/A gain over their non-rootworm-traited
counterparts. The yield gains were even higher in continuous
corn situations. There, the Agrisure RW hybrids yielded an
average of 4.6 bu/A more than their non-RW comparison hybrids.
Managed stress testing environments lead to an even greater
yield advantage at 10.6 bu/A2.
Syngenta Agronomy Marketing Manager Bruce Battles cites several
factors in the performance of the Agrisure RW hybrids. “Trials
indicate hybrids with the Agrisure RW trait appear to have
improved yield potential compared to controls under stressful
environments without rootworm pressure,” Battles said. “In
addition, the data indicates that the Western corn rootworm
variant, and the Northern corn rootworm extended diapause, are
expanding. As a result, you may have fields where the corn
rootworm pressure is either underestimated, or not even
acknowledged.”
Agrisure Marketing Manager Tracy Mader said the data prove why
sales of hybrids with the Agrisure RW trait have expanded to new
or non-traditional geographies. Sales have also expanded because
of the recently enhanced Biotechnology Endorsement program,
which can help growers in select states qualify for reductions
on their federal crop insurance premiums by planting hybrids
with approved trait stacks that include the Agrisure RW trait.
Agrisure Corn Traits is a system of high-performance in-seed
traits providing resistance to European corn borer (the Agrisure
CB/LL trait) and corn rootworm (the Agrisure RW trait) and
conferring tolerance to glyphosate herbicides (the Agrisure GT
trait) or glufosinate herbicides (the Agrisure CB/LL trait).
Growers seeking a triple stack of all Agrisure insect protection
and herbicide tolerance offerings can get full protection and
weed control flexibility in the Agrisure 3000GT trait stack,
which combines all current Agrisure traits.
Syngenta is one of the world’s leading companies with more
than 24,000 employees in over 90 countries dedicated to our
purpose: Bringing plant potential to life. Through world-class
science, global reach and commitment to our customers we help to
increase crop productivity, protect the environment and improve
health and quality of life. For more information about us please
go to www.syngenta.com.
* Syngenta strip trial comparisons are completed with hybrids
of similar RMs, adjusted for moisture to +/- 3 points and of
equivalent trait classes unless otherwise noted. Isolines used
for comparison featured identical genetics to the test hybrids
but did not contain the Agrisure RW trait. A total of 363 strip
trials were conducted in rotated crop situations, and an
additional 139 comparisons were conducted in continuous corn
situations. Trials were concentrated in Iowa, Illinois,
Minnesota, Nebraska, South Dakota and Wisconsin. 2Managed stress
testing conducted in Colorado and California.
Agrisure® and the Syngenta logo are registered trademarks of a
Syngenta Group Company. |
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