Seed dormancy and germination in threatened Iberian<i>Coincya</i>(Brassicaceae) taxa
Bibliographic record
Abstract
ABSTRACT This study analyzes the influence of temperature, light conditions, seed age, and seed position in the fruit on germination of four Coincya taxa endemic to the south-central Iberian Peninsula: C. rupestris subsp. rupestris (two populations), C. rupestris subsp. leptocarpa, C. longirostra, and C. monensis subsp. orophila (two populations). The first three taxa are endangered. Germination was considerably lower in darkness than with a photoperiod in all taxa analyzed. Freshly matured seeds of C. rupestris subsp. leptocarpa and C. rupestris subsp. rupestris from main population showed primary dormancy, failing to germinate at any temperature or light condition tested. In the other taxa and populations analyzed, fresh seeds showed conditional physiological dormancy, germinating at low and middle but not at high temperatures (32/18 °C). In most taxa and populations, germination capability increased with seed age, and dormancy was finally broken, which suggests that Coincya taxa have non-deep physiological dormancy. The hypothesis that seeds can be induced into conditional dormancy with seed age was confirmed in a population of C. monensis subsp. orophila, where seeds lost the ability to germinate at 5 °C from the fourth month of dry-storage. In most populations tested, short-aged seeds (≤2 months) showed a more pronounced dormancy level when they were collected from the valvar dehiscent portion than from the indehiscent beak. However, the hypothesis that thick-beaked taxa have beak seeds with higher germination than seeds from the valvar portion cannot be accepted as a general trend.
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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 | 0.000 | 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 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".