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Record W2392559342

Effects of enhanced ultraviolet-B irradiance on the diurnal variation of flavonoids in wheat leaves

2007· article· en· W2392559342 on OpenAlexaff
Yue Ming

Bibliographic record

VenueActa Scientiae Circumstantiae · 2007
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicLight effects on plants
Canadian institutionsScience North
Fundersnot available
KeywordsPhotosynthesisIrradianceUltraviolet B radiationDiurnal temperature variationChemistryBiomass (ecology)HorticultureUltraviolet radiationAgronomyAnimal scienceBotanyFood scienceBiologyAtmospheric sciences
DOInot available

Abstract

fetched live from OpenAlex

Pot cultivation experiments in greenhouse were conducted to study the effects of enhanced UV-B radiation on the diurnal variations of flavonoids in wheat leaves during grain filling stage. The results showed that the flavonoids content of wheat leaves increased significantly under the enhanced UV-B radiation at daytime, and then declined at night when they were released from the stress of UV-B radiation. Meanwhile, the difference of flavonoids content between control and UV-B treatment decreased gradually. The activity of phenylalanine ammonialyase also showed a similar trend with that of content of flavornoids. Simultaneously, the net photosynthetic rate of wheat was not affected by supplementary UV-B radiation, but the respiration rate was enhanced significantly at night. The results implied that the continuous fluctuation of flavonoids content might be another explanation why biomass was reduced significantly while plant net photosynthesis was not influenced by enhanced UV-B radiation.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.001
Threshold uncertainty score0.002

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.007
GPT teacher head0.203
Teacher spread0.196 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

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".

Quick stats

Citations3
Published2007
Admission routes1
Has abstractyes

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