Growth and physiological responses of an invasive alien species,<i>Silene noctiflora</i>, during two developmental stages to four levels of ultraviolet-B radiation
Bibliographic record
Abstract
Few studies have considered the effects of ultraviolet-B (UVB) radiation during different developmental stages of plants, especially on invasive alien species. We studied growth and physiological responses of night-flowering catchfly (Silene noctiflora) to UVB radiation during 2 developmental stages. Silene noctiflora plants were grown under biologically effective UVB (UVBBE) radiation of 0, 4, 8, and 16 kJ·m−2·d−1 in controlled-environment growth chambers. Growth and physiological parameters of plants were measured during vegetative and reproductive stages. In general, enhanced UVB radiation reduced stem height and diameter, leaf area, and total dry matter. It also decreased leaf weight ratio, leaf area ratio, stomatal number, net CO2 assimilation, water use efficiency, and chlorophyll concentration but increased specific leaf weight, epidermal cell size, transpiration, UV-absorbing compounds, and epicuticular wax. Plants were taller and had higher chlorophyll, UV-absorbing compounds, and wax but lower ethylene evolution in the reproductive stage than in the vegetative stage. Overall, S. noctiflora plants were damaged by a four-fold increase of UVB radiation, as was apparent from reduced total seed yield. They acclimated under ambient UVB and a two-fold increase of UVB in their reproductive stage. These results mean that this plant may remain an invasive species under increased UVB radiation.
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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) | 0.001 | 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".