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Record W2001744646 · doi:10.14295/rbho.v9i2.179

Avaliação de diferentes concentrações dos meios de cultura MS e Knudson para propagação in vitro da bromélia-imperial.

2003· article· pt· W2001744646 on OpenAlexaff
Vanessa Coelho Naves, Patrícia Duarte de Oliveira Paiva, Renato Paiva, Moacir Pasqual, Luciano Vilela Paiva

Bibliographic record

VenueRevista Brasileira de Horticultura Ornamental · 2003
Typearticle
Languagept
FieldBiochemistry, Genetics and Molecular Biology
TopicPlant tissue culture and regeneration
Canadian institutionsDiscovery Air (Canada)
Fundersnot available
KeywordsHorticultureBiologyPhysicsChemistry

Abstract

fetched live from OpenAlex

A propagação de bromélias por meio da cultura de tecidos tem tido grande importância. Mediante a produção de mudas em larga escala, é possível atender aos mercados nacional e internacional e, ainda, permitir a produção de exemplares para programas de reintrodução em habitats quando se trata de espécies ameaçadas de extinção. Para esse processo, a definição do tipo de meio de cultura e concentração a utilizar é bastante relevante, permitindo determinar um protocolo eficiente e economicamente viável para propagação da cultura. Objetivou-se, neste trabalho, avaliar o comportamento de plântulas de bromélia-imperial (Alcantarea imperialis) em diferentes concentrações do meio de cultura MS (50 e 150% da sua concentração original) e do meio Knudson (50 e 150% da concentração original), tendo como testemunha a concentração original dos meios (100%). A todos os meios, acrescentaram-se 2 mg.L-1 de thidiazuron (TDZ), 30 g.L-1 de sacarose e 7 g.L-1 de ágar. Após 120 dias, realizaram-se as avaliações. Os parâmetros analisados foram os seguintes: número de explantes responsivos, número de brotações por explante, altura de brotos e intumescimento. O meio MS na sua concentração original (100%) proporcionou os melhores resultados.

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)0.001
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.002
Threshold uncertainty score0.005

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0010.000
Open science0.0000.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0010.000

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 head0.021
GPT teacher head0.274
Teacher spread0.254 · 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 designBench or experimental
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

Citations2
Published2003
Admission routes1
Has abstractyes

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