VARIATION IN TREE GROWTH, WOOD DENSITY, AND PULP FIBER PROPERTIES OF 35 WHITE SPRUCE (PICEA GLAUCA (MOENCH) VOSS) FAMILIES GROWN IN QUEBEC
Bibliographic record
Abstract
Thirty-five fast-growing white spruce families planted at two sites were compared for their growth, wood and fiber properties. The analysis was made at family level, and each family comprised four individual trees. There was a significant difference in growth rate (expressed as mean annual ring width) between the two sites, and trees grew faster at Lac St-Ignace site compared to Valcartier site. The faster tree growth rates recorded at Lac St-Ignace site resulted in significantly shorter fibers for 33 of the 35 families analyzed in comparison to Valcartier, but had no significant effect on basic wood density and fiber coarseness. The pulping properties varied between the three families analyzed at two sites. Overall, the handsheet tear index properties were low but the tensile indices were high. The fastest-growing families at Lac St-Ignace site tended to have lower tear index and pulp yields but slightly higher handsheet densities than the same families grown at Valcartier site. Thus, the white spruce pulps appear more appropriate for better bonded paper grades where surface smoothness and good printability are required rather than for paper grades where high sheet strength is required.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.003 |
| Science and technology studies | 0.000 | 0.004 |
| Scholarly communication | 0.000 | 0.001 |
| 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".