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Record W7046982440

The effects of plant growth promoting rhizobacteria on Asparagus officinalis subjected to water stress and disease

2008· dissertation· en· W7046982440 on OpenAlexaboutno aff

Bibliographic record

VenueThe Atrium (University of Guelph) · 2008
Typedissertation
Languageen
FieldPhysics and Astronomy
TopicSuperconducting and THz Device Technology
Canadian institutionsnot available
Fundersnot available
KeywordsAsparagusRhizobacteriaInoculationCultivarGreenhousePlant disease resistanceOfficinalis
DOInot available

Abstract

fetched live from OpenAlex

Asparagus plantings over many harvest seasons suffer declining yields and profit loss due to water stress, disease pressure, or combinations thereof. It was hypothesized that plant growth promoting rhizobacteria (PGPR) inoculation would improve asparagus growth and reduce the negative effects of water stress and disease caused by 'Fusarium oxyxporum' f.sp. 'asparagi ' ('Foa'). Both field and greenhouse experiments were used to evaluate the effectiveness of single or repeated inoculations of two asparagus cultivars (Guelph Millennium (GM) and Jersey Giant (JG)) with two PGPR strains ('Pseudomonas putida' UW3 and 'P. putida ' UW4) on improving growth of water- or 'Foa'-disease-stressed asparagus crowns and seeds. In the field, PGPR inoculation had no significant effect on plant growth. In the greenhouse, PGPR inoculation did increase growth, most prominently in the Guelph Millennium (GM) cultivar with multiple inoculations of 'P. putida' UW3. Single UW3 inoculations also improved GM's resistance to 'Foa' under optimum soil moisture and JG's resistance to 'Foa' under flooding conditions.

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 score0.003
Threshold uncertainty score0.005

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)0.0010.000

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 head0.007
GPT teacher head0.197
Teacher spread0.190 · 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

Citations0
Published2008
Admission routes1
Has abstractyes

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