S3.E8 – Where Resistance Begins: The Origin of Barley Disease Ratings

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Every disease rating in the SaskSeed® Guide has an origin story — one that begins years before you put the seed in the ground. In this episode of The Barley Bin, host Mitchell Japp traces barley disease resistance all the way back to its source: the nursery plots, lab screens, breeding crosses, and wild barley germplasm that turn a research idea into a resistance rating you can act on.

We start at the farm gate. East-Central Saskatchewan producer Gord Moellenbeck — a SaskBarley director who’s grown malt barley for nearly 40 years — explains why the disease package comes before yield when every acre has to make malt quality.

From there, the researchers who build resistance from the ground up:

Dr. Kelly Turkington (retired pathologist) — inside the nurseries that screen thousands of breeding lines every season
Dr. Randy Kutcher (pathologist, University of Saskatchewan) & Dr. Gurcharn Brar (plant breeder, University of Alberta) — hunting new resistance in wild barley germplasm
Dr. Aaron Beattie (plant breeder, Crop Development Centre, USask) — the decade-plus it takes to move a single resistance trait into a variety you can actually grow

It’s the story behind the number in the provincial seed guides — and a hard look at what’s at stake when the system that produces resistance comes under pressure.

If you missed the earlier episodes of the season, catch up on Spotify our YouTube.

Key takeaways:

The disease package can matter more than yield. For malt growers like Gord Moellenbeck, a strong disease package protects both quality and the sale — and often makes up for a little yield along the way. Missing malt grade on an acre is far more costly than leaving a few bushels behind.
A disease rating is the end of a long chain, not the start. The number in the seed guide reflects years of nursery trials, lab screening, field evaluation, and breeding decisions — all completed before the variety ever reaches a grower.
Disease nurseries are engineered, not accidental. Sites like the scald nurseries at AAFC Lacombe deliberately screen thousands of breeding lines and commercial varieties each season under heavy, consistent disease pressure — the stress test that separates real resistance from luck.
New resistance can come from wild barley. When resistance to diseases like scald and net blotch runs short in commercial germplasm, researchers turn to wild barley lines as a source of new genetics to bring into the breeding pipeline.
Resistance takes a decade-plus to reach your farm. Moving a single trait from a wild plant into a stable, commercially viable, seedable variety is a 10-year-plus effort — the clock starts long before you ever see the variety listed.
The system is built to catch problems early. Evaluation and registration are designed to flag disease weaknesses before a variety is released — but that safeguard depends on the nurseries, funding, and expertise behind it holding up under pressure.