Response of soybean cultivars to root rot caused by <i>Fusarium</i> species
Bibliographic record
Abstract
Fusarium root rot complex is a major soybean disease in Canada and the United States. Since 2006, four Fusarium species, F. oxysporum Schlechtendahl emend. Snyder & Hansen, F. graminearum Schwabe, F. avenaceum (Corda: Fr.) Sacc., and F. tricinctum (Corda) Sacc., have frequently been isolated from soybean roots in eastern Ontario, Canada. The objective of the current study was to screen 57 soybean cultivars that are commercially available in Canada for resistance to these four Fusarium root rot pathogens under greenhouse conditions. Based on root rot severity and reductions in seedling emergence, plant height and root dry weight, F. avenaceum was the most pathogenic species, followed by F. graminearum. The pathogenicity of F. oxysporum on soybean cultivars was not significantly different from that of F. tricinctum, but was significantly lower than that of F. graminearum. In replicated experiments, six, nine, eleven and seven cultivars were consistently rated as the most resistant to F. avenaceum, F. graminearum, F. oxysporum and F. tricinctum, respectively. Cultivar Maple Amber was resistant to all four Fusarium species based on root rot severity, while cultivar Altona was resistant to F. avenaceum, F. oxysporum and F. tricinctum. Four cultivars, 9004, AC Harmony, Lanark and Maple Arrow, each showed resistance to two different Fusarium species.Key words: Soybean, Glycine max, Fusarium root rot, Fusarium oxysporum, F. graminearum, F. avenaceum, F. tricinctum
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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 teacher head, 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".