On Thursday, November 13th, Dr. Brandon Gerrish, State Extension Small Grain Specialist planted our first Texas Organic Wheat Variety Trial at Todd Vranac’s certified organic farm in Rule, Texas. This test is an opportunity to evaluate wheat lines under authentic organic production conditions. This irrigated farm, managed organically over many seasons, offers an environment that conventional research plots often cannot replicate.

Wheat trials help us look at agronomic traits of wheat as well as evaluate our production systems in organic!
Each variety in the trial allows us to observe how wheat responds when relying on soil biology for nutrient cycling, competing with weeds without herbicides, and performing under the constraints of organic fertility sources. As organic wheat acreage expands in Texas, field-based evaluations like this are essential for identifying varieties that align with the agronomic realities of organic systems and for improving the recommendations available to growers.
Why Organic Variety Testing Isn’t Optional
One of the most important conversations I’ve had this year was with Dr. Jackie Rudd, Dr. Gerrish and the TAMU wheat breeding team this past August at the Small Grain Breeding Group meeting. We talked about the gap that still exists between conventional breeding and organic production, and why organic growers need data generated in organic fields.
The traits that matter most in organic systems differ from what many conventional trials measure. Organic producers need wheat that can do things like:
1. Emerge from deeper planting depths
Organic growers often plant deeper to reach moisture and to make mechanical weed control possible. With deeper rooting we can use rotary hoes or tine weeders to take our early season weeds and start cleaner. But many modern semi-dwarfs simply don’t have the coleoptile length to handle that depth. Lines with longer coleoptiles or alternative dwarfing genes (like Rht8) stand a better chance of thriving in these conditions.

2. Fight disease with genetics, not chemistry
Stripe rust, leaf rust, stem rust, Fusarium head blight, BYDV—these aren’t just occasional threats in organic wheat. Without fungicides, genetic resistance to disease becomes the primary protection for diseases. Multi-gene and adult-plant resistance are particularly valuable.
3. Use nutrients efficiently through the soil microbiome
Organic wheat depends on soil biology to help acquire nutrients. Varieties with strong root systems, mycorrhizal associations, and efficient nutrient uptake consistently do better in slow-release, biological systems. Traits like enhanced nitrate transporter activity or strong remobilization of nutrients during grain fill make a visible difference in yield.
4. Outcompete weeds
Early vigor, aggressive tillering, and a fast-closing canopy are necessary to yield production. These are the traits that help organic wheat shade out early warm season weeds and other winter annuals long before the weeds become yield-limiting.
5. Deliver high-quality grain for a premium market
Organic buyers want protein, strong gluten, good milling quality, low DON (a mycotoxin), and consistency. They also increasingly look for functional food traits like higher mineral content (iron, zinc, even selenium). The right variety can put an organic grower into a higher-value market.
This Year’s Trial
The trial this year includes a mix of public and private genetics—everything from long-standing varieties like TAM 114 and Smith’s Gold to experimental Oklahoma and Texas lines, plus new materials such as Green Hammer, Paradox, High Cotton, and Guardian. Click the link below to see the trial information.
Organic tests like this will help answer important questions about how “conventional varieties” preform growing under organic conditions:
- Which varieties take off fast enough to hold back early weeds?
- Which can take advantage of irrigation while still operating under organic nutrient constraints?
- Which lines show strong fall vigor and winter hardiness?
- Which have the disease packages organic growers rely on?
- Which varieties convert organic fertility into grain yield the most efficiently?
Organic Grower Research is Very Important!
Hosting a trial like this requires commitment, and I’m grateful for Todd Vranac’s willingness to put research into his organic acres. Organic agriculture depends on exactly this kind of farmer-researcher collaboration because:
- It takes place under the conditions organic growers actually face.
- Weather, weeds, fertility, and soil biology are real—not simulated.
- It gives producers confidence that variety recommendations apply to their own operations.
- It builds a shared knowledge base across the organic community.
As we go through the season I hope to share updates from the trial, including stand counts, disease observations, and eventually yield and quality results. Organic growers across Texas need these answers, and trials like this give us the data to make better variety recommendations year after year.
Testing varieties in organic fields doesn’t just improve one season’s crop. It strengthens the long-term resilience of organic grain production in the Southern Plains. And it helps breeders refine the traits that matter most for growers working in biologically driven systems.
Other Resources:
- Wheat Variety Trial in Excel
- Why Bread Tastes Better in Europe Than in the U.S. and Does it Matter?
- Milling, Baking, Planting Organic Wheat: What Farmers Need to Know
- 2025 Texas Small Grains Variety Trials
- Breeding Better Organic Wheat: Traits That Matter for Organic and Regenerative Farms
- Organic Wheat Resources
- Organic Barley Resources
- Organic Rye Resources
- Organic Oat Resources
- Organic Triticale Resources
- Weed Control Performance with High Density Planting
- Organic Transition in Dual-Purpose Wheat Systems
- Can Cover Crops Control Weeds and Save Water Too

















