Effect of Seed Pre-treatment by Low-dose Gamma-ray Radiation on Reduction of Ultraviolet-B Caused Injury in Ryegrass Seedlings
Bibliographic record
Abstract
Ryegrass(Lolium perenne L.,cv.'Victorian') seedlings from seed pretreated with low-dose gamma irradiation(LDG) were exposed to 6.5kJ/(m2·d) UV-B radiation under controlled environmental conditions.The high level of UV-B radiation caused serious plant injury,such as acceleration of senescence,growth inhibition and lipid oxidation of cell membrane,but the UV-B induced injury was alleviated significantly by LDG-pretreatment,in particularly by 20 and 30Gy(1Gy=1J/kg).Both ascorbic acid(AA) and UV-absorbing compounds were increased by LDG-pretreatment,and the later were further enhanced by UV-B irradiation.Under UV-B exposure the levels of photosynthetic pigments remained high in the seedling with seed-pretreatment by 30 Gy.We suggest that increased plant tolerance to UV-B damage caused by LDG pretreatment may be due in part to higher contents of ascorbic acid and UV-absorbing compounds,and the ability to maintain high levels of photosynthetic pigments.The possible implications of these observations are discussed.
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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".