2015
Symbiotic nitrogen fixation in Roundup Ready soybean
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Contributor/Checkoff:
Alabama Soybean Producers
Category:
Sustainable Production
Keywords:
GeneticsGenomics
Parent Project:
Symbiotic nitrogen fixation in Roundup Ready soybean
Lead Principal Investigator:
Yucheng Feng, Auburn University
Co-Principal Investigators:
Project Code:
Contributing Organization (Checkoff):
Alabama Soybean Producers
(n/a)
Institution Funded:
Auburn University
(n/a)
Brief Project Summary:

Over 96% of soybeans planted in Alabama are Roundup Ready varieties and receive at least one foliar application of glyphosate. Very little glyphosate is degraded within soybean plants and it tends to concentrate in roots and nodules. Some strains of Bradyrhizobium japonicum, the nitrogen fixing symbiont, are sensitive to glyphosate. If glyphosate has a negative impact on nitrogen fixation, less fixed nitrogen would be available to support high yields of soybean. This research aims to determine if glyphosate affected the growth of soybean and Bradyrhizobium japonicum and nitrogen fixation in Roundup Ready soybean. It also uses greenhouse experiments to evaluate the growth of glyphosate-tolerant soybean in response to post-emergence glyphosate applications.

Key Benefactors:
farmers, agronomists, Extension agents

Information And Results
Project Deliverables

Final Project Results

The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.