MétaCan
Menu
Back to cohort
Record W2290458142 · doi:10.14288/1.0042445

Native grass seed development : progress after eight years

2009· article· en· W2290458142 on OpenAlexaboutno aff
Manivalde Vaartnou

Bibliographic record

VenuecIRcle (University of British Columbia) · 2009
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicBioenergy crop production and management
Canadian institutionsnot available
Fundersnot available
KeywordsGeography

Abstract

fetched live from OpenAlex

Sound ecological restoration of disturbed areas includes the use of native species in the herbaceous layer. However, seed of grasses native to the west coast of British Columbia is neither available in sufficient quantity, nor at a reasonable price. Thus, in 1996 this long-term applied research program was initiated to determine the utility of native Vancouver Island grasses in restoration of disturbed areas, and ultimately provide a source of native grass seed for use on Vancouver Island and the adjacent mainland coast. The program is also a prototype for more recently initiated programs for development of native grass seed supplies for northwest Canada and the southern interior of British Columbia. Native grass seed was collected from the wild during the summers of 1996 and 1997. These seeds were sown to flats in the U.B.C. greenhouse. Subsequently the emergent plants were transplanted to a nursery near Duncan to multiply the seed so that the ensuing parts of the program could be undertaken. Replicated trial sites with agronomic controls were established throughout Vancouver Island. Other sites, which could not be replicated because of a lack of homogeneity in site characteristics, were established as demonstration sites, or larger operational sites. Each summer, the ground cover on all sites has been analyzed on a species by species basis using the ‘Daubenmire’ methodology. This analysis has indicated that native grasses produce at least as much ground cover as introduced, commercially available agronomic grasses. In order to ascertain the seed production potential of the more successful species, large plots were established near Dawson Creek. All aspects of these plots are handled in a manner identical to that which a farmer would use in field-scale seed production. This involves chemical, mechanical and manual weed control, drill seeding, and harvesting with a swather and combine. Results have indicated that some native grasses will produce substantial amounts of seed in the Peace River region, but others may need to be grown elsewhere.

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)0.002
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: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.013
Threshold uncertainty score0.025

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0020.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0010.000
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0030.001

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 head0.006
GPT teacher head0.154
Teacher spread0.148 · 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
Published2009
Admission routes1
Has abstractyes

Explore more

Same venuecIRcle (University of British Columbia)Same topicBioenergy crop production and managementFrench-language works237,207