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Foreign Material and Seed Moisture in Glyphosate-Resistant and Conventional Soybean Systems1

Published online by Cambridge University Press:  20 January 2017

David R. Shaw  and
C. Shane Bray
David R. Shaw*
Affiliation:
Department of Plant and Soil Sciences, Mississippi State University, Mississippi State, MS 39762
C. Shane Bray
Affiliation:
Department of Plant and Soil Sciences, Mississippi State University, Mississippi State, MS 39762
*
Corresponding author's E-mail: dshaw@rstc.msstate.edu
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Abstract

Advances in biotechnology within the last decade have caused dramatic changes in agricultural production systems. In Mississippi, over 60% of the soybean hectarage was planted to glyphosate-resistant soybean in the 2001 production season. One advantage of glyphosate-resistant systems may be that fields with fewer weeds at harvest result in less foreign material and lower seed moisture due to less foreign material. Research was conducted to assess the foreign matter and moisture content of representative glyphosate-resistant and conventional soybean by evaluating elevator receipts collected from soybean producers in the southern and midwestern United States. A survey of growers using glyphosate-resistant and conventional soybean was conducted during the fall and winter of 2000. Copies of elevator receipts were collected to compare the foreign matter percentage and moisture content of soybean in both categories. A total of 16,535 ha were represented, of which 13,903 were from glyphosate-resistant soybean and 2,632 were from conventional soybean. Average foreign matter content from the glyphosate-resistant soybean was 1.9%, compared with 2.5% from the conventional soybean. Thus, the glyphosate-resistant program reduced foreign matter, an indication of reduced weed seed and trash contained in the sample or improved harvest efficiency. No difference was noted in seed moisture content between the two systems.

Keywords

SoybeanGlycine max (L.) MerrCrop qualityfb, followed by
Type
Note
Information
Weed Technology , Volume 17 , Issue 2 , June 2003 , pp. 389 - 393
Copyright
Copyright © Weed Science Society of America 

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