Synchrotron assessment of boron sensitivity and storage in <i>Brassica napus</i> and <i>B. rapa</i>
Why this work is in the frame
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Bibliographic record
Abstract
Application of low levels of boron (B) to soil can suppress clubroot symptoms slightly on brassica crops, but phytotoxicity increases rapidly as rates of added B increase. Tolerance to added B has been reported previously in Brassica rapa and more recently in B. napus. We investigated B uptake, speciation, and storage in sensitive and tolerant lines as part of a wider examination of the potential for use of B-tolerance in B. napus to reduce clubroot severity. The current study demonstrated that B speciation and translocation in B. napus differed between B-tolerant and B-sensitive lines. A higher proportion of B was incorporated into nitrogen-containing compounds in root tissues of the putative tolerant lines relative to sensitive lines grown under normal condition (control). In treatments that received added B, trigonally coordinated B-O compounds were dominant in all plant tissues with the presence of tetragonally coordinated B-O compounds. B-tolerant lines accumulated less B in shoots relative to B-sensitive lines when exposed to excess B, which would help plants avoid B phytotoxicity. This study supports previous suggestions that application of B onto a B-tolerant cultivar could potentially be included as one strategy in an integrated crop strategy to reduce clubroot severity.
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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 | 0.000 | 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