Field test : Heptamaloxyloglucan and Sorbitol sprayed on grapevines does not provide -3 C spring frost protection in Canada
Bibliographic record
Abstract
Heptamaloxyloglucan and Sorbitol, together commercialized as PEL101GV, was applied on Frontenac hybrid grapevines at 60 mg/ha and 100 g/ha respectively, 43 hours prior to a spring frost event in the Montérégie region (Quebec, Canada). In the test plot, the minimum temperature varied between -3.1 oC to -3.7 oC, as measured at the 70 cm shoot's height. The agents were compared to no-treatment in a complete randomized test block with 13 repetitions. The average shoot survival rate was 15.9% and 14.5% for the agent and the no-treatment respectively, but data analysis shows no statistical significance with p = 0.577. Data suggests that shoot survival rate is correlated to the physical position in the field. In the conditions tested, Heptamaloxyloglucan and Sorbitol were not effective at protecting against spring frost.
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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 | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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 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".