Registration of ‘AB Wrangler’, a two‐rowed feed and forage barley with enhanced resistance to Fusarium head blight
Bibliographic record
Abstract
Abstract The mycotoxin deoxynivalenol (DON) produced by Fusarium head blight (FHB) can reduce feed efficiencies. New barley (Hordeum vulgare L.) cultivars with improved resistance to FHB that still provide producers with high yield are desired. ‘AB Wrangler’ (Reg. no. CV‐372, PI 695086; CFIA Reg. no. 8911; Canadian PBR Appl. no. 19‐10051) is a two‐rowed, hulled, spring barley developed for feed and forage use. AB Wrangler has enhanced resistance to FHB in testing across Canada and the United States. In Canada, this line accumulated 50% less DON than the feed checks ‘CDC Austenson’ and ‘Champion’. Its DON levels were similar to the most resistant check ‘Chevron’ in the North American Barley Scab Evaluation Nursery. In the Western Cooperative Two‐row Barley Registration Tests, AB Wrangler outyielded the feed check CDC Austenson. In the Western Cooperative Forage Barley Registration Tests (FCoop), it had biomass yields similar to the highest yielding forage check ‘CDC Cowboy’ while its biomass quality was better than CDC Cowboy. It is a medium height cultivar with lodging resistance similar to the better checks in the FCoop. AB Wrangler has earlier maturity than CDC Austenson, similar to Champion. AB Wrangler was rated as resistant to stem rust and moderately resistant to spot blotch, the surface‐borne smuts, and FHB. AB Wrangler combines good agronomic, disease, and feed–forage attributes that will make it suitable for dry‐land production on the northern Great Plains.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".