Influence of nitrogen fertilization on growth and loline alkaloid production of meadow fescue (<i>Festuca pratensis</i>) associated with the fungal symbiont <i>Neotyphodium uncinatum</i>
Bibliographic record
Abstract
In a field study during two growing seasons in northern Sweden, we assessed meadow fescue (Festuca pratensis Huds.) with and without Neotyphodium uncinatum to determine whether the endophyte affects plant performance regarding tiller and biomass production. In addition, we measured loline alkaloids produced in infected grasses. Approximately 1000 plants grew at two different levels of nitrogen fertilization: the normal amount applied in this region and one-half that amount. Increasing the amount of nitrogen increased the total number of tillers on the plants. Endophyte-infected plants produced more tillers per plant than plants without the endophyte; there was, however, no significant difference in proportion of reproductive tillers, winter survival, or total biomass production between endophyte-infected and noninfected plants. Infected plants produced loline alkaloids in different quantities without indication of being influenced by different nitrogen fertilization levels.
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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) | 0.000 | 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 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".