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Yield trial results for non-GMO and organic corn hybrids

An estimated 80 percent of the corn grown in the U.S. today is genetically modified and most seed companies continue to phase out non-GMO corn seed varieties. Together with breeders and seed retailers, Practical Farmers of Iowa launched the U.S. Testing Network (USTN) in 2009 to rebuild the dwindling selection of non-GMO and organic seed corn.

Practical Farmers of Iowa coordinates the yield trials for non-GMO and organic corn hybrids and now offers public data from the tests for farmer fact-based decision-making.

USTN Info

USTN Data

USTN Membership


USTN Members Selling Non-GMO or Organic Corn Hybrids:

Albert Lea Seed House

Mac Ehrhardt
1414 W Main St
Albert Lea MN 56007
507-373-3161
www.alseed.com

Beck’s Hybrids / Great Harvest Organics

John Hunt
6767 E 276th St.
Atlanta, IN  46031
800-937-2325
www.beckshybrids.com
www.greatharvestorganics.com

Blue River Hybrids

Maury Johnson
27087 Timber Rd.
Kelley, IA 50134
800-370-7979
www.blueriverorgseed.com

Brownseed Genetics

Charles Brown
N 1279 530 St PO Box 7
Bay City WI 54723
715-594-3355
www.brownseedgenetics.com

eMerge Genetics

Wayne Hoener
4401 Westown Parkway,
Suite 225
West Des Moines lA 50266
866-769-7200
www.emergegenetics.com

Foundation Organic Seed

Steve Mohr
634 13th Avenue North
Onalaska, WI
800-495-6647
www.foundationorganicseed.com

Genetic Enterprises International

Alix V. Paez
6165 Crabapple Lane
Johnston lA 50131
515-278-1170
paezgei@mchsi.com
www.geicornseed.com

JGW Hybrids

JGW Hybrids
Fred Wilz
2907 Ontario St
Ames IA
515-669-6688

Lord’s Seed

John Larimar
6825N 375E
Howe IN 46746
260-562-2233
www.lordsseed.com

Mandaamin Institue

Walter Goldstein
W2331 Kniep Road
Elkhorn WI  53121
262-248-1533
www.mandaamin.org

MAS Seeds

Aline Dumont
1 La Fontaine
41290 Rhodon – FRANCE
+33 254 23 17 86
www.masseeds.com

Masters Choice

Cullen Johnson
305 W. Vienna Street
Anna, IL  62906
812-870-8429
www.seedcorn.com

Sentinel Seeds

Stephen Gray
326 E. 2500 N. Road
Ashkum, IL 60911
815-698-2484
www.sentinelseeds.com

Wyffels Hybrids

Brian Humphries
13344 US Hwy 6
Geneseo, IL  61254
309-944-7760
www.wyffels.com

USTN Current & Past Members:

Adaptive Symbiotic Technologies

Albert Lea Seed

Beck’s Hybrids

Blue River Hybrids

Brownseed Genetics

Camerar Farms

Cornell University

CRD Advisors

CROPP Cooperative

DKD Genetics

eMerge Genetics

Foundation Organic Seed

Frank Kutka

Genetic Enterprises International

Gray Research Production

Great Harvest Organics

Iowa State University

JGW Hybrids

Koopman Genetics

Lord’s Seed

Maisadour Semences / MAS Seeds

Mandaamin Institute

Mark Seed

Masters Choice

Michael Fields AG Institute

Montgomery Cons.

New Mexico State University

North Dakota State University

Ohio State University

Penn State University

Purdue University

Real Farm Research

Sentinel Seeds

Southwest Seed Research

Spectrum Seed Technologies Research

Texas A&M Agrilife Research

University of Missouri

University of Nebraska – Lincoln

University of Vermont

University of Wisconsin – Madison

USDA-ARS

Wyffels Hybrids

Practical Farmers of Iowa – Test Coordinator