Evaluation of Pea Accessions Differing in Flower and Seed Coat Pigmentation for Resistance to <i>Fusarium avenaceum</i> Root Rot
Why this work is in the frame
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Bibliographic record
Abstract
ABSTRACT Pea production across the world is significantly limited by root rot disease, which is caused by many fungal and oomycetes pathogens. In Canada, Fusarium avenaceum is the most devastating pathogen of the Fusarium root rot complex of pea. Host genetic resistance is the most effective control method for this disease. Evaluation of global pea accessions and Canadian varieties for F. avenaceum root rot resistance has not been reported to date. This study evaluated 20 pea accessions of different market classes with pigmented or nonpigmented seed coats and flowers for F. avenaceum resistance under controlled conditions. The pea accessions CDC Acer, CDC Vienna, PBA OURA, Morgan, CDC Blazer, CDC Dakota, and PI 280609, which have pigmented flowers and seed coats, were identified as resistant or partially resistant to F. avenaceum . This was based on their root rot severity scores and ability to tolerate F. avenaceum infection without significant ( p > 0.05) reductions in plant height, shoot dry weight, and root dry weight. Among the varieties with nonpigmented flowers and seed coats, only Cameor showed partial resistance to F. avenaceum when challenged with reduced conidial concentration. Root dry weight ( R = −0.86), plant height ( R = −0.82), and shoot dry weight ( R = −0.78) had a strong negative correlation ( p < 0.001) with disease severity, suggesting that F. avenaceum root rot can negatively impact the growth and development of pea seedlings. F. avenaceum resistance identified in this study can be utilized to study the molecular basis of the resistance and develop disease‐resistant varieties. While our findings suggest a relationship between pigmentation and F. avenaceum resistance, future research with a larger, more diverse panel is warranted to validate these initial results.
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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 | 0.000 |
| 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 it