Corn Grain Hybrid Tests in Tennessee 2025
Experimental Procedures
Results
Location and Treatment Information
Table 1. AgResearch and Education Center (REC) location information
Table 2. County Standard Test (CST) location information
Table 3. Corn hybrid characteristics
Table 4. Abbreviations for biotech traits
Table 5. Seed company contact information
Summary
Table 6. Summary of “A group” hybrids within REC and CST tests
Early-season Hybrids
Table 7. Early-season yield, agronomic, and quality data across REC locations
Table 8. Early-season yield data by REC location
Table 9. Early-season roundup ready/stacked across and by CST locations
Table 10. Early-season hybrids common to both REC and CST Tests
Table 11. Early-season roundup ready/stacked disease data
Medium-season Hybrids
Table 12. Medium-season yield, agronomic, and quality data across REC locations
Table 13. Medium-season yield data by REC location
Table 14. Medium-season roundup ready/stacked across and by CST locations
Table 15. Medium-season hybrids common to both REC and CST Tests
Table 16. Medium-season roundup ready/stacked disease data
Full-season Hybrids
Table 17. Full-season yield, agronomic, and quality data across REC locations
Table 18. Full-season yield data by REC location
Table 19. Full-season roundup ready/stacked across and by CST locations
Table 20. Full-season hybrids common to both REC and CST Tests
Table 21. Full-season roundup ready/stacked disease data
Additional Trial Information
Appendix A (available online only)
Table A-1. Mean yields and agronomic data from Knoxville, TN – Early Corn
Table A-2. Mean yields and agronomic data from Knoxville, TN – Med. Corn
Table A-3. Mean yields and agronomic data from Knoxville, TN – Full Corn
Table A-4. Mean yields and agronomic data from Greeneville, TN – Early Corn
Table A-5. Mean yields and agronomic data from Greeneville, TN – Med. Corn
Table A-6. Mean yields and agronomic data from Greeneville, TN – Full Corn
Table A-7. Mean yields and agronomic data from Springfield, TN Irrigated – Early Corn
Table A-8. Mean yields and agronomic data from Springfield, TN Irrigated – Med. Corn
Table A-9. Mean yields and agronomic data from Springfield, TN Irrigated – Full Corn
Table A-10. Mean yields and agronomic data from Springfield, TN Non-Irrigated Early Corn 38
Table A-11. Mean yields and agronomic data from Springfield, TN Non-Irrigated – Med. Corn 39
Table A-12. Mean yields and agronomic data from Springfield, TN Non-Irrigated – Full Corn- 40
Table A-13. Mean yields and agronomic data from Spring Hill, TN – Early Corn
Table A-14. Mean yields and agronomic data from Spring Hill, TN – Med. Corn
Table A-15. Mean yields and agronomic data from Spring Hill, TN – Full Corn
Table A-16. Mean yields and agronomic data from Milan, TN Irrigated – Early Corn
Table A-17. Mean yields and agronomic data from Milan, TN Irrigated – Med. Corn
Table A-18. Mean yields and agronomic data from Milan, TN Irrigated – Full Corn
Table A-19. Mean yields and agronomic data from Milan, TN Non-Irrigated – Early Corn
Table A-20. Mean yields and agronomic data from Milan, TN Non-Irrigated – Med. Corn
Table A-21. Mean yields and agronomic data from Milan, TN Non-Irrigated – Full Corn
Table A-22. Mean yields and agronomic data from Jackson, TN – Early Corn
Table A-23. Mean yields and agronomic data from Jackson, TN – Med. Corn
Table A-24. Mean yields and agronomic data from Jackson, TN – Full Corn
Virginia Sykes, Associate Professor, Variety Testing Coordinator and Agroecology Specialist
Ryan Blair, Extension Area Specialist, Grain Crops & Cotton
Heather Kelly, Professor, Extension/Research Plant Pathologist and IPM Coordinator
Andrew Lawson, Research Associate, Variety Testing and Agroecology
Isaac Mirahki, Postdoctoral Research Associate, Variety Testing and Agroecology
Bailey Burns, Research Associate, Variety Testing and Agroecology
Dennis West, Professor, Corn and Wheat Breeding
David Kincer, Research Associate, Corn and Wheat Breeding
Jake McNeal, Assistant Professor, Corn and Soybean Specialist
Agronomic Crop Variety Testing and Demonstrations
Department of Plant Sciences
Institute of Agriculture
The University of Tennessee
Telephone: (865) 974-7285
Email: vsykes@utk.edu
Acknowledgments
This research was funded by UT Extension, the Tennessee Corn Promotion Board, and participating companies.
We gratefully acknowledge the assistance of the following individuals in conducting these experiments:
Northeast Tennessee AgResearch and Education Center (Greeneville, TN)
Justin Lee McKinney, Director
Trey Clark, Research Associate
East Tennessee AgResearch and Education Center (Knoxville, TN)
Ethan Parker, Director
B.J. DeLozier, Farm Manager
Cory Yurisic, Research Associate
Middle Tennessee AgResearch and Education Center (Spring Hill, TN)
Kevin Thompson, Director
Joe David Plunk, Research Associate
Highland Rim AgResearch and Education Center (Springfield, TN)
Robert Ellis, Director
Brad S. Fisher, Research Associate
AgResearch and Education Center at Milan (Milan, TN)
Jason Williams, Interim Director
Joey Duncan, Research Associate
Michael Wesley, Research Associate
West Tennessee AgResearch and Education Center (Jackson, TN)
Scott Stewart, Director
Randi Dunagan, Research Associate
Kacey Cannon, Research Associate
Andrew Wood, Research Coordinator
Additionally, we are grateful for the continued support and dedication of the many county extension agents and cooperators who contribute to these results (for a full list of extension agents and cooperators, see Table 2).