2026 Releases
Iowa State University is releasing new non-GMO Soybean varieties. Contact germplasm@iastate.edu or 515-294-5614 for seed; singhak@iastate.edu for more information on the 2026 varieties.
2026 Releases Comparison Chart| Variety | Category | Flower | Pubescence | Hilum | Pod | Maturity | Standability | IDC | PRR | SCN | SDS | WM |
|---|
| IAS19C3 | Food grade | P | L | Y | T | 2.1 | 8 | 5 | 2 | 7 | 7 | 7 |
| IAS25C2 | Food grade
General use | W | G | Y | T | 2.5 | 7 | 3 | 2 | 8 | 6 | 7 |
| IAS25HPHS1 | Food grade | W | T | Y | T | 2.5 | 8 | 4 | 2 | 6 | 7 | 7 |
| IAS27C1 | General use | P | L | BL | B | 2.7 | 7 | 6 | 5 | 8 | 8 | 8 |
| IAS29C1 | General use | P | L | BR | B | 2.9 | 8 | 3 | 7 | 7 | 9 | 8 |
| IAS29C3 | General use | P | G | IB | T | 2.9 | 9 | 2 | 2 | 9 | 6 | 4 |
| IAS29C4 | General use | P | G | IB | T | 2.9 | 9 | 3 | 2 | 8 | 8 | 3 |
| IAS31C2 | General use | P | L | BR | B | 3.1 | 8 | 5 | 6 | 9 | 9 | 8 |
| IAS32C1 | General use | P | G | BF | T | 3.2 | 8 | 5 | 2 | 9 | 9 | 5 |
| IAS34C1 | General use | P | L | BL | T | 3.4 | 8 | 4 | 2 | 9 | 9 | 4 |
Flower color: P=purple; W=white
Pubescence: G=gray; L=light tawny; T=tawny
Hilum color: BF=buff; BL=black; BR=brown; IB=imperfect black; Y=yellow
Pod wall color: B=brown; T=tan
Ratings for all 2026 soybean varieties: 8-9=excellent; 7=very good; 6=good; 5=average; 3-4=below average; 1-2=poor
2026 Soybean Varieties (PDF)
Score index used for all soybean varieties for 2026 releases| Numerical score index | Descriptive score index |
|---|
| 8-9 | Excellent |
| 7 | Very Good |
| 6 | Good |
| 5 | Average |
| 3-4 | Below Average |
| 1-2 | Poor |
Non-GMO Food Grade Soybean - IAS19C3
Commercial seeds are available through select licensed distributors. New distributors are welcome to apply.
Performance Summary:
- High yield
- Good protein (~40-41%)
- Extensive testing done across Mid-West U.S. states (public trials, F.I.R.S.T trials, and state trials)
- Ranked high in “Gross Income Rank” in F.I.R.S.T. trials (MNSOCV) in 2022, 2023, 2024
- Rapid uptake due to high yield, high protein, good standability
Soybean - IAS19C3 traits and scores| Trait | Score Index |
|---|
| Maturity | 2.1 |
| Plant Type | Medium |
| Plant Height | Medium |
| Emergence | NA |
| Standability | 8 |
| White Mold | 7 |
| Iron Chlorosis | 5 |
| Sudden Death (SDS) | 7 |
| Brown Stem Rot | NA |
| Soybean Cyst Nematode (SCN) | 7 |
| Phytophthora Root Rot (PRR) | 2 |
| Hilum Color | Yellow |
Yield Performance Across Iowa-North Locations (<2.2) from 2019-2022| Year | Rank | # of Locations | Seed Yield (bu/ac) | Test Mean (bu/ac) | Highest Yielding Line (bu/ac) |
|---|
| 2019 | 12/45 | 5 | 59.5 | 58.1 | 61.5 |
| 2020 | 8/45 | 5 | 62.1 | 59.8 | 65.1 |
| 2021 | 25/40 | 5 | 59.9 | 60.2 | 66.9 |
| 2022 | 21/35 | 5 | 73.0 | 73.2 | 76.4 |
Non-GMO Food Grade or General Use - IAS25C2
Foundation seed will be available in 2026
Performance Summary:
- Excellent yield
- Consistently good performance across multiple states
- Yellow hilum
Soybean IAS25C2 traits and scores| Trait | Score Index |
|---|
| Maturity | 2.5 |
| Plant Type | Medium |
| Plant Height | Medium |
| Emergence | NA |
| Standability | 7 |
| White Mold | 7 |
| Iron Chlorosis | 3 |
| Sudden Death (SDS) | 6 |
| Brown Stem Rot | NA |
| Soybean Cyst Nematode (SCN) | 8 |
| Phytophthora Root Rot (PRR) | 2 |
| Hilum Color | Yellow |
Yield Performance Across States| Year | State Test | Rank | # of Locations | Seed Yield (bu/ac) | Test Mean (bu/ac) | Highest Yielding Line (bu/ac) |
|---|
| 2025 | IA-B1B | 24/31 | 5 | 64.5 | 66.3 | 71.7 |
| 2025 | IA-B2A | 21/27 | 5 | 68.4 | 69.9 | 74.2 |
| 2024 | MI-Central | 16/73 | 4 | 63.5 | 59.9 | 69.6 |
| 2024 | WI-South | 1/32 | 2 | 82.0 | 71.0 | 82.0 |
| 2024 | IA-North (MG > 2.2) | 28/36 | 5 | 60.1 | 62.2 | 69.3 |
| 2024 | IA-Central (MG < 2.7) | 9/39 | 5 | 74.5 | 71.6 | 76.5 |
| 2024 | IL-Region1 (MG 1.9-2.6) | 18/29 | 2 | 67.1 | 68.9 | 74.9 |
Non-GMO Food Grade Soybean - IAS25HPHS1
Commercial seeds are available through select licensed distributors. New distributors are welcome to apply.
Performance Summary:
- Good yield
- High protein content (~42%)
- Higher sucrose, low raffinose and stachyose for better digestibility and nutritional value
- Larger seed size
- Excellent standability
- Good replacement option for food-grade usage looking for yellow hilum, high protein, higher sucrose and large seed size
Soybean - IAS25HPHS1 traits and scores| Trait | Score Index |
|---|
| Maturity | 2.5 |
| Plant Type | Shorter |
| Plant Height | ~30” |
| Emergence | NA |
| Standability | 8 |
| White Mold | 7 |
| Iron Chlorosis | 4 |
| Sudden Death (SDS) | 7 |
| Brown Stem Rot | NA |
| Soybean Cyst Nematode (SCN) | 6 |
| Phytophthora Root Rot (PRR) | 2 |
| Hilum Color | Yellow |
Summary of Trait data (2018-2023)| Year | IAS25HPHS1 | IA2102 |
|---|
| Yield (bu/ac) | 57.5 | 59.0 |
| Protein (dw) | 41.7% | 39.3% |
| 100-Seed weight (gm) | 19.7 | 16.0 |
| Sucrose (%) | 4.65 | 3.5 |
| Raffinose (%) | 0.5 | 0.6 |
| Stachyose (%) | 0.95 | 2.65 |
Non-GMO General-Use Soybean - IAS27C1
Commercial seeds are available through select licensed distributors, and new distributors are welcome to apply.
Performance Summary:
- Excellent yield
- Consistently high yield across multiple states
- Improved flooding tolerance
- SDS, White Mold and SCN resistance
Soybean - IAS27C1 traits and scores| Trait | Score index |
|---|
| Maturity | 2.7 |
| Plant Type | Medium |
| Plant Height | Medium |
| Emergence | NA |
| Standability | 7 |
| White Mold | 8 |
| Iron Chlorosis | 6 |
| Sudden Death (SDS) | 8 |
| Brown Stem Rot | NA |
| Soybean Cyst Nematode (SCN) | 8 |
| Phytophthora Root Rot (PRR) | 5 |
| PRR gene | RpsH1k |
| Hilum Color | Black |
2024 Yield Performance Across States| State Test | Rank | # of Locations | Seed Yield (bu/ac) | Test Mean (bu/ac) | Highest Yielding Line (bu/ac) |
|---|
| MI-Central | 3/73 | 4 | 68.5 | 59.9 | 69.6 |
| WI-South | 9/32 | 2 | 77.0 | 71.0 | 82.0 |
| IA-North (MG > 2.2) | 17/36 | 5 | 62.9 | 62.2 | 69.3 |
| IA-Central (MG < 2.7) | 17/39 | 5 | 73.1 | 71.6 | 76.5 |
| IL-Region1 (MG 2.7-3.4) | 6/29 | 2 | 64.9 | 60.1 | 69.8 |
| IL-Region2 (MG 2.4-3.2) | 21/26 | 2 | 72 | 75.2 | 83.3 |
Non-GMO General Use Soybean - IAS29C1
Foundation seed will be available in 2026
Performance Summary:
- Excellent yield
- SCN resistance – PI 88788 source
- Excellent resistance to stem diseases
- Improved flooding tolerance
Soybean - IAS29C1 traits and scores| Trait | Score index |
|---|
| Maturity | 2.9 |
| Plant Type | Medium |
| Plant Height | Medium |
| Emergence | NA |
| Standability | 8 |
| White Mold | 8 |
| Iron Chlorosis | 3 |
| Sudden Death (SDS) | 9 |
| Brown Stem Rot | NA |
| Soybean Cyst Nematode (SCN) | 7 |
| Phytophthora Root Rot (PRR) | 7 |
| PRR gene | Rps1k |
| Hilum Color | Brown |
Yield Performance Across States| | State Test | Rank | # of Locations | Seed Yield (bu/ac) | Test Mean (bu/ac) | Highest Yielding Line (bu/ac) |
|---|
| 2025 | IA-B2B | 22/29 | 5 | 68.2 | 70.2 | 75.5 |
| 2025 | IA-B3A | 21/23 | 5 | 61.9 | 64.0 | 66.9 |
| 2024 | MI-South | 21/58 | 4 | 63.1 | 60.8 | 69.6 |
| 2024 | WI-South | 2/32 | 2 | 80.0 | 71.0 | 82.0 |
| 2024 | IA-Central (MG < 2.7) | 13/30 | 5 | 73.0 | 72.0 | 76.6 |
| 2024 | IA-South (MG < 3.2) | 8/25 | 4 | 67.9 | 66.5 | 70.0 |
| 2024 | IL-Region1 (MG 2.7-3.4) | 19/29 | 2 | 59.5 | 60.1 | 69.8 |
| 2024 | IL-Region2 (MG 2.4-3.2) | 15/26 | 2 | 76.6 | 75.2 | 83.3 |
Non-GMO General Use Soybean - IAS29C3
Foundation seed will be available in 2026
Soybean - IAS29C3 traits and scores| Trait | Score index |
|---|
| Maturity | 2.9 |
| Plant Type | Medium |
| Plant Height | Medium |
| Emergence | NA |
| Standability | 9 |
| White Mold | 4 |
| Iron Chlorosis | 2 |
| Sudden Death Syndrome (SDS) | 6 |
| Brown Stem Rot | NA |
| Soybean Cyst Nematode (SCN) | 9 |
| Phytophthora Root Rot (PRR) | 2 |
| Hilum Color | Imperfect Black |
Yield Performance| Test | Rank | # of Locations | Seed Yield (bu/ac) | Test Mean (bu/ac) | Highest Yielding Line (bu/ac) |
|---|
| 25-IA-B2B | 14/29 | 5 | 70.5 | 70.2 | 75.5 |
| 25-IA-B3A | 4/23 | 5 | 65.8 | 64.0 | 66.9 |
| 25-UT2 | 9/35 | 14 | 74.8 | 72.7 | 78.7 |
| 24-UT2 | 2/39 | 13 | 80.4 | 73.7 | 81.1 |
| 23-PT3A | 4/40 | 11 | 79.2 | 74.5 | 79.9 |
| 22-C-204L | 2/50 | 6 | 75.0 | 70.1 | 75.9 |
| 21-B-306 | 27/130 | 3 | 77.4 | 73.2 | 89.3 |
Non-GMO General Use Soybean - IAS29C4
Foundation seed will be available in 2026.
Performance Summary:
- Excellent yield
- SCN resistance – Peking source
- Excellent agronomic performance
- Seed oil ~24% (dry weight basis)
Soybean - IAS29C4 traits and scores| Trait | Score index |
|---|
| Maturity | 2.9 |
| Plant Type | Medium |
| Plant Height | Medium |
| Emergence | NA |
| Standability | 9 |
| White Mold | 3 |
| Iron Deficiency Chlorosis (IDC) | 3 |
| Sudden Death Syndrome (SDS) | 8 |
| Brown Stem Rot (BSR) | NA |
| Soybean Cyst Nematode (SCN) | 8 |
| Phytophthora Root Rot (PRR) | 2 |
| Hilum Color | Imperfect Black |
Yield Performance| Test | Rank | # of Locations | Seed Yield (bu/ac) | Test Mean (bu/ac) | Highest Yielding Line (bu/ac) |
|---|
| 25-IA-B2B | 9/29 | 5 | 71.4 | 70.2 | 75.5 |
| 25-IA-B3A | 2/23 | 5 | 66.2 | 64.0 | 66.9 |
| 25-UT2 | 3/35 | 14 | 76.6 | 72.7 | 78.7 |
| 24-UT2 | 1/39 | 13 | 81.1 | 73.7 | 81.1 |
| 23-PT3A | 6/40 | 11 | 79.0 | 74.5 | 79.9 |
| 22-C-202E | 3/60 | 6 | 77.2 | 71.4 | 78.1 |
| 21-B-204 | 8/150 | 3 | 80.2 | 72.6 | 82.5 |
Non-GMO General Use Soybean - IAS31C2
Foundation seed will be available in 2026.
Soybean - IAS31C2 traits and scores| Trait | Score index |
|---|
| Maturity | 3.1 |
| Plant Type | Medium |
| Plant Height | Medium |
| Emergence | NA |
| Standability | 8 |
| White Mold | 8 |
| Iron Chlorosis | 5 |
| Sudden Death Syndrome (SDS) | 9 |
| Brown Stem Rot | NA |
| Soybean Cyst Nematode (SCN) | 9 |
| Phytophthora Root Rot (PRR) | 6 |
| PRR gene | Rps1k |
| Hilum Color | Brown |
Yield Performance Across States| | State Test | Rank | # of Locations | Seed Yield (bu/ac) | Test Mean (bu/ac) | Highest Yielding Line (bu/ac) |
|---|
| 2025 | IA-B2B | 19/29 | 5 | 68.9 | 70.2 | 75.5 |
| 2025 | IA-B3A | 14/23 | 5 | 63.8 | 64.0 | 66.9 |
| 2024 | MI-South | 22/58 | 4 | 63.1 | 60.8 | 69.6 |
| 2024 | WI-South | 11/32 | 2 | 77.0 | 71.0 | 82.0 |
| 2024 | IA-Central (MG > 2.7) | 17/30 | 5 | 72.5 | 72.0 | 76.6 |
| 2024 | IA-South (MG < 3.2) | 6/25 | 4 | 68.3 | 66.5 | 70.0 |
| 2024 | IL-Region1 (MG 2.7-3.4) | 4/29 | 2 | 66.9 | 60.1 | 69.8 |
| 2024 | IL-Region2 (MG 2.4-3.2) | 7/26 | 2 | 78.6 | 75.2 | 83.3 |
Non-GMO General Use Soybean - IAS32C1
Foundation seed will be available in 2026.
Soybean - IAS32C1 traits and scores| Trait | Score index |
|---|
| Maturity | 3.2 |
| Plant Type | Medium |
| Plant Height | Medium |
| Emergence | NA |
| Standability | 8 |
| White Mold | 5 |
| Iron Chlorosis | 5 |
| Sudden Death Syndrome (SDS) | 9 |
| Brown Stem Rot | NA |
| Soybean Cyst Nematode (SCN) | 9 |
| Phytophthora Root Rot (PRR) | 2 |
| Hilum Color | Buff |
Yield Performance Across States| Test | Rank | # of Locations | Seed Yield (bu/ac) | Test Mean (bu/ac) | Highest Yielding Line (bu/ac) |
|---|
| 25-IA-B2B | 8/29 | 5 | 72.0 | 70.2 | 75.5 |
| 25-IA-B3A | 7/23 | 5 | 65.4 | 64.0 | 66.9 |
| 25-UT3 | 15/40 | 13 | 72.0 | 71.5 | 77.1 |
| 24-UT3 | 1/40 | 14 | 81.0 | 76.8 | 81.0 |
| 23-PT3A | 13/40 | 11 | 76.3 | 74.5 | 79.9 |
| 22-C-302 | 4/60 | 5 | 69.1 | 64.4 | 71.6 |
| 21-B-306 | 6/130 | 3 | 84.0 | 73.2 | 89.3 |
Non-GMO General Use Soybean - IAS34C1
Foundation seed will be available in 2026.
Performance Summary:
- Excellent yield
- SCN resistance - Peking source
- Resistance to SDS
- Excellent agronomic performance
Soybean - IAS34C1 traits and scores| Trait | Score index |
|---|
| Maturity | 3.4 |
| Plant Type | Medium |
| Plant Height | Medium |
| Emergence | NA |
| Standability | 8 |
| White Mold | 4 |
| Iron Chlorosis | 4 |
| Sudden Death Syndrome (SDS) | 9 |
| Brown Stem Rot | NA |
| Soybean Cyst Nematode (SCN) | 9 |
| Phytophthora Root Rot (PRR) | 2 |
| Hilum Color | Black |
Yield Performance Across States| Test | Rank | # of Locations | Seed Yield (bu/ac) | Test Mean (bu/ac) | Highest Yielding Line (bu/ac) |
|---|
| 25-IA-B3B | 6/31 | 5 | 68.5 | 66.2 | 70.4 |
| 25-UT3 | 6/40 | 13 | 74.4 | 71.5 | 77.1 |
| 24-UT3 | 2/40 | 14 | 80.7 | 76.8 | 81.0 |
| 23-PT3A | 3/40 | 11 | 79.8 | 74.5 | 79.9 |
| 22-C-302 | 2/60 | 5 | 70.9 | 64.4 | 71.6 |
| 21-B-306 | 16/130 | 3 | 80.1 | 73.2 | 89.3 |
More information on previous releases (PDF)
