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Record W7028114640

The dispersal of wheat curl mites (Acari: Eriophyidae) and kernel streaking in maize (Zea mays L.)

2004· dissertation· en· W7028114640 on OpenAlexaboutno aff

Bibliographic record

VenueThe Atrium (University of Guelph) · 2004
Typedissertation
Languageen
FieldAgricultural and Biological Sciences
TopicInsect-Plant Interactions and Control
Canadian institutionsnot available
Fundersnot available
KeywordsBiological dispersalHuskZea maysSowingPoaceaeMicroclimateStreakingGerminationHybrid
DOInot available

Abstract

fetched live from OpenAlex

The wheat curl mite (WCM, 'Aceria tosichella' Keifer), a pest of corn, is suggested to be associated with kernel streaking in corn (KSC). KSC is a physiological disorder that seriously affects the quality of food grade corn, but little is known about the factor/factors causing the expression of KSC or the dispersal characteristics of WCM into corn from winter wheat. These projects were conducted from 1999 to 2002 at Ridgetown College and the University of Guelph, Ontario, Canada, to study the dispersal characteristics of WCM from their source into corn fields, and the effects of WCM, low temperature during grain filling phase of corn, and sunlight and corn genotype on the expression of KSC. Corn fields adjacent to winter wheat, soybean or grasses were chosen to clarify the main source of WCM. Corn fields with wheat to the north, east, south and west were selected to study the critical distances for WCM dispersal in corn fields and the dispersal period of WCM. The influence of WCM, cool nights during the grain filling phase of corn, stronger sunlight on kernels when without husk protection, and corn hybrids on the expression of KSC was studied. The main source of WCM in corn in the summer was winter wheat; the critical distances to isolation planting of corn were 90 m when wheat was to the west of corn and 60 m when wheat was in the north or south; WCM dispersal started in late June, peaked in the first three weeks of July and stopped when winter wheat was harvested; The presence of WCM, cool night temperatures and intensity of sunlight were factors that influenced the incidence and severity of KSC, but their effects largely depended on the susceptibility of corn hybrids. Therefore, plant breeding may be a more logical approach to managing KRS in food grade corn.

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: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.015
Threshold uncertainty score0.029

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.000
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 head0.008
GPT teacher head0.194
Teacher spread0.186 · 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
Published2004
Admission routes1
Has abstractyes

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