Canola response to high and moderately high temperature stresses during seed maturation
Why this work is in the frame
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Bibliographic record
Abstract
Canola is a valuable oilseed crop worldwide. Temperature during the post-anthesis period plays an important role in determining the final yield and seed composition. Experiments were conducted in climate-controlled growth cabinets to test the effect of two high temperature regimes following a 24-h acclimation period on three canola cultivars differing in their thermotolerance. A long, moderately high temperature treatment of 28°C/23°C (day/night) was applied for 10 d from 20 to 30 d after flowering (DAF) and a short, very high temperature regime of 28°C/23°C (day/night) including a peak of 38 °C reached for 5 h around midday for 5 d from 25 to 29 DAF. Very high temperature for 5 d reduced yield on the main stem by up to 52% for a sensitive cultivar by reducing seed weight. This treatment also decreased the oil/protein ratio, but had a lesser effect on fatty acid composition. The moderately high temperature treatment for 10 d had only affected yield of one cultivar and increased the oil/protein ratio of all cultivars. However, it had a more pronounced effect on the fatty acid profile. A short period of very high temperature at a sensitive stage can be as critical to canola mild temperature stress over a longer period. Key words: Brassica napus, oil, protein, fatty acids, tolerance, acclimation, heat stress
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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