2023 Products Tested Listings
Comprehensive listings of hybrids and varieties in the 2023 FIRST trials are available at the links below.
PDF versions of the 2023 Products Tested Directories are also available, with full contact details for each of our sponsor and participant brands:
Testing Objectives and Procedures
FIRST provides a fair and objective platform under a uniform testing standard to compare seed productivity in a multitude of soil and growing conditions across 15 states. This year, over 2,000 seed products from over 70 seed companies were tested across 65 distinct growing regions. These replicated tests are conducted on over 300 farms, so that producers and ag professionals can better match seed performance with particular growing conditions. FIRST’s work relies on collaborations between cooperating farmers, sponsoring seed companies, FIRST Field Managers and publishing partners. FIRST is grateful for the opportunity to work with the agricultural community. The continuing goal of the program is to deliver of timely, unbiased comparisons of innovative seed genetics to improve yield and profitability for American farmers.
More information on testing procedures, measurements, and reporting are available at these links: Corn Grain Soybeans Corn Silage
2023 Region and Location Details
FIRST trials are arranged in regions of several contiguous counties, with 5-6 plot locations for corn grain and 4 locations for soybeans and corn silage that are representative of the area. Each seed entered in the region is tested at all locations in order to provide 18-20 small plot observations in the entire region.
FIRST encourages you to use the Region Summary Reports published after all locations are harvested to evaluate the best performances across a range of locations and environments.
Region test plans with the number of entries and maturity range are listed below.
Tests are often split into different maturity ranges.
The different maturity tests are abbreviated as:
- "u" for ultra-early maturity
- "a" for early-season
- "b" for late-season
- "l" for ultra-late maturity
Location Details are listed on each crop webpage. Use the navigation menu or jump to the location list and interactive maps from here:
Corn
Grain
Soybeans
SilageCorn Grain Regions
| Entries per test | Maturity Range per Test | |||||||||||
| State | Region | Manager | All/UE (u) | Early (a) | Full (b) | UL (l) | All/UE (u) | Early (a) | Full (b) | UL (l) | ||
| DE/MD | DMNO | Delaware Maryland North | Rob Kauffman | 54 | -- | -- | -- | 106 - 116 | -- | -- | -- | |
| IA | IAEC | Iowa East Central | Randy Meinsma | -- | 48 | 54 | -- | -- | 105 - 110 | 111 - 115 | -- | |
| IA | IANC | Iowa North Central | Corey Rozenboom | -- | 72 | 78 | -- | -- | 101 - 106 | 107 - 111 | -- | |
| IA | IANO | Iowa North | Corey Rozenboom | 60 | -- | -- | -- | 95 - 100 | -- | -- | -- | |
| IA | IANW | Iowa Northwest | Corey Rozenboom | -- | 66 | 72 | -- | -- | 101 - 106 | 107 - 111 | -- | |
| IA | IASO | Iowa South | Randy Meinsma | -- | 45 | 45 | -- | -- | 106 - 111 | 112 - 116 | -- | |
| IA | IAWC | Iowa West Central | Randy Meinsma | -- | 45 | 45 | -- | -- | 105 - 110 | 111 - 115 | -- | |
| IL | ILEC | Illinois East Central | Nathan Roux | -- | 54 | 54 | -- | -- | 105 - 111 | 112 - 116 | -- | |
| IL | ILNO | Illinois North | Jason Beyers | 36 | 54 | 54 | -- | 101 - 106 | 107 - 110 | 111 - 114 | -- | |
| IL | ILSO | Illinois South | Klint Tucker | -- | 48 | 48 | -- | -- | 107 - 112 | 113 - 117 | -- | |
| IL | ILWC | Illinois West Central | Nathan Roux | -- | 45 | 63 | -- | -- | 105 - 111 | 112 - 116 | -- | |
| IN | INCE | Indiana Central | Klint Tucker | -- | 48 | 48 | -- | -- | 105 - 110 | 111 - 114 | -- | |
| IN | INNO | Indiana North | Matt Turner | -- | 40 | 40 | -- | -- | 103 - 108 | 109 - 112 | -- | |
| IN | INSO | Indiana South | Klint Tucker | -- | 32 | 32 | -- | -- | 107 - 113 | 114 - 120 | -- | |
| KS | KSNE | Kansas Northeast | Adam Stuteville | -- | 36 | 36 | -- | -- | 107 - 112 | 113 - 117 | -- | |
| MI | MISO | Michigan South | Matt Turner | -- | 48 | 36 | -- | -- | 97 - 103 | 104 - 107 | -- | |
| MI | MITH | Michigan Thumb | Matt Turner | 48 | -- | -- | -- | 93 - 103 | -- | -- | -- | |
| MN | MNSE | Minnesota Southeast | Mark Querna | 30 | 72 | 42 | -- | 92 - 96 | 97 - 102 | 103 - 107 | -- | |
| MN | MNSW | Minnesota Southwest | Mark Querna | -- | 72 | 60 | 36 | -- | 97 - 102 | 103 - 107 | 108 - 112 | |
| MN | MNWC | Minnesota West Central | Ed Dahle | -- | 45 | 42 | -- | -- | 93 - 98 | 99 - 102 | -- | |
| MO | MOCE | Missouri Central | William Schelp | -- | 36 | 36 | -- | -- | 107 - 112 | 113 - 117 | -- | |
| MO | MONO | Missouri North | William Schelp | -- | 40 | 40 | -- | -- | 107 - 112 | 113 - 117 | -- | |
| IA/IL/WI | NCTS | North Central Iowa, Tri-State Illinois & Wisconsin | Jason Beyers | -- | 45 | 45 | -- | -- | 101 - 107 | 108 - 111 | -- | |
| NE | NENE | Nebraska Northeast | Corey Rozenboom | -- | 48 | 48 | -- | -- | 105 - 110 | 111 - 115 | -- | |
| NE | NESE | Nebraska Southeast | Adam Stuteville | -- | 40 | 40 | -- | -- | 107 - 112 | 113 - 117 | -- | |
| OH | OHNW | Ohio Northwest | Matt Turner | -- | 32 | 36 | -- | -- | 103 - 108 | 109 - 112 | -- | |
| PA | PACE | Pennsylvania Central | Rob Kauffman | 48 | -- | -- | -- | 102 - 112 | -- | -- | -- | |
| PA | PASE | Pennsylvania Southeast | Rob Kauffman | 54 | -- | -- | -- | 105 - 115 | -- | -- | -- | |
| SD | SDNE | South Dakota Northeast | Mark Tollefson | -- | 54 | 54 | -- | -- | 91 - 95 | 96 - 100 | -- | |
| SD | SDSE | South Dakota Southeast | Mark Tollefson | -- | 60 | 60 | -- | -- | 98 - 102 | 103 - 108 | -- | |
| WI | WICE | Wisconsin Central | Jason Beyers | -- | 45 | 45 | -- | -- | 93 - 98 | 99 - 102 | -- | |
| WI | WISO | Wisconsin South | Jason Beyers | -- | 45 | 45 | -- | -- | 99 - 104 | 105 - 109 | -- | |
Soybean Regions
| Entries per test | Maturity Range per Test | |||||||
| State | Region | Manager | Early (a) | Full (b) | Early (a) | Full (b) | ||
| DE | DMNO | Delaware Maryland North | Rob Kauffman | 54 | -- | 3.7 - 4.7 | -- | |
| IA | IANC | Iowa North Central | Corey Rozenboom | 36 | 42 | 2.1 - 2.5 | 2.6 - 2.9 | |
| IA | IANO | Iowa North | Corey Rozenboom | 42 | 42 | 1.6 - 2.0 | 2.1 - 2.5 | |
| IA | IANW | Iowa Northwest | Corey Rozenboom | 36 | 30 | 1.9 - 2.4 | 2.5 - 2.8 | |
| IA | IASC | Iowa South Central | Randy Meinsma | 36 | 36 | 2.3 - 2.7 | 2.8 - 3.2 | |
| IA | IASO | Iowa South | Randy Meinsma | 36 | 36 | 2.5 - 3.0 | 3.1 - 3.6 | |
| IL | ILNC | Illinois North Central | Nathan Roux | 63 | -- | 2.8 - 3.8 | -- | |
| IL | ILNO | Illinois North | Jason Beyers | 63 | -- | 2.4 - 3.3 | -- | |
| IL | ILSC | Illinois South Central | Nathan Roux | 63 | -- | 3.3 - 4.3 | -- | |
| IL | ILSO | Illinois South | Klint Tucker | 72 | -- | 3.5 - 4.5 | -- | |
| IN | INCE | Indiana Central | Klint Tucker | 72 | -- | 2.8 - 3.8 | -- | |
| IN | INNO | Indiana North | Matt Turner | 72 | -- | 2.4 - 3.4 | -- | |
| KS | KSEC | Kansas East Central | Adam Stuteville | 45 | -- | 3.7 - 4.7 | -- | |
| KS | KSNE | Kansas Northeast | Adam Stuteville | 45 | -- | 3.4 - 4.4 | -- | |
| MN | MNCE | Minnesota Central | Ed Dahle | 60 | -- | 1.3 - 2.0 | -- | |
| MN | MNNC | Minnesota North Central | Ed Dahle | 36 | 36 | 0.6 - 0.9 | 1.0 - 1.5 | |
| MN | MNSC | Minnesota South Central | Mark Querna | 36 | 36 | 1.5 - 1.8 | 1.9 - 2.2 | |
| MN | MNSO | Minnesota South | Mark Querna | 36 | 36 | 1.6 - 1.9 | 2.0 - 2.3 | |
| MN | MNSOCV | Minnesota South Conventional Specialty | Mark Querna | 24 | -- | 1.4 - 2.3 | -- | |
| MO | MOCE | Missouri Central | William Schelp | 36 | 36 | 3.4 - 3.9 | 4.0 - 4.5 | |
| MO | MONO | Missouri North | William Schelp | 36 | 36 | 3.2 - 3.7 | 3.8 - 4.3 | |
| IA/IL | NCSL | North Central State Line | Jason Beyers | 54 | -- | 2.1 - 2.9 | -- | |
| NE | NENE | Nebraska Northeast | Corey Rozenboom | 60 | -- | 2.4 - 3.3 | -- | |
| NE | NESE | Nebraska Southeast | Adam Stuteville | 45 | -- | 3.1 - 4.0 | -- | |
| OH | OHNW | Ohio Northwest | Matt Turner | 48 | -- | 2.4 - 3.4 | -- | |
| PA | PASE | Pennsylvania Southeast | Rob Kauffman | 54 | -- | 2.8 - 3.8 | -- | |
| SD | SDEC | South Dakota East Central | Mark Tollefson | 81 | -- | 1.6 - 2.3 | -- | |
| SD | SDNE | South Dakota Northeast | Mark Tollefson | 75 | -- | 1.0 - 1.7 | -- | |
| SD | SDSE | South Dakota Southeast | Mark Tollefson | 72 | -- | 2.1 - 2.8 | -- | |
| WI | WISO | Wisconsin South | Jason Beyers | 45 | -- | 1.8 - 2.5 | -- | |
Silage Corn Regions
Entries per test | Maturity Range per Test | |||||
| State | Region | Manager | All | All | ||
| PA | PACE | Pennsylvania Central | Rob Kauffman | 36 | 105 - 116 | |
| PA | PASE | Pennsylvania Southeast | Rob Kauffman | 36 | 113 - 119 |