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Record W2167051645

Propagation of Several Native Ornamental Plants

2002· article· en· W2167051645 on OpenAlexaboutno aff
Stacy L. Ruchala

Bibliographic record

VenueDigitalCommons (California Polytechnic State University) · 2002
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicFlowering Plant Growth and Cultivation
Canadian institutionsnot available
Fundersnot available
KeywordsOrnamental plantGeographyBiologyEcology
DOInot available

Abstract

fetched live from OpenAlex

Interest in growing native plants has been increasing in recent years. In an effort to better understand some valuable native plants for use in the Northeast, the propagation and taxonomy of several plants with potential as landscape plants were explored. In an effort to make more propagation information available to nursery growers and plant propagators, commercially feasible propagation methods were researched. Asarum canadense, Canadian wild ginger, seed is typically difficult to germinate; so warm stratification and gibberellic acid were tested to determine if this process would increase germination. Warm stratification mimics conditions to which the seed would typically be exposed in nature, and gibberellic acid is a plant hormone that can substitute for cold stratification and help increase gemination of seeds. After one, two, or three months in warm stratification; seed was soaked in gibberellic acid for 24 hours and placed in petri dishes. None of the seeds germinated, this could be the result of a double dormancy in the seed. Comptonia peregrina, sweet fern, is a native shrub often used in landscapes and erosion control. Because seed is difficult to germinate and stem cuttings are not successhl, root cuttings are the commonly used propagation method. Root cuttings were tested for their reaction to cold stratification length and temperature. The cuttings did respond to stratification length and temperature, with one month of cold stratification we achieved 100% rooting. In addition to rooting at higher percentages, cuttings treated with consistent temperatures of 3-4°C also rooted sooner, had more shoots per cell, and had longer shoots. , Two species of dogwood, Cornus alternifolia and C. rugosa, were tested for their reaction to different treatments of stem cuttings. C. alternifolia roots readily from softwood cuttings, but rooted cuttings have some difficulty overwintering. Extended photoperiods did not increase rooting percentages, suggesting that photoperiods do not effect rooting. C. rugosa is a relatively unknown in the nursery trade, so research was conducted to determine optimum propagation methods. Softwood cuttings were taken, but the leaves quickly turned brown and the cuttings died. Hardwood cuttings rooted at much higher percentages, with supplemental lighting actually being detrimental to rooting. Gaultheria procumbens, wintergreen, is a native woody plant with many potential uses in the landscape. Seed is typically hard to germinate, so seed was soaked for 24 hours in gibberellic acid to determine if germination percentages could be increased. Light conditions (ambient, extended, and dark) were also tested. Gibberellic acid did significantly increase percentages and ambient light conditions were found to be best for germination. Viburnum lantanoides and V. nudum var. cassinoides were tested for their reaction to treatments of softwood stem cuttings, rooting hormones, and extended photoperiods. K lantanoides rooted readily with 1000 ppm K-IBA treatment and light

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: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.003
Threshold uncertainty score0.006

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 studies0.0010.000
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 head0.018
GPT teacher head0.180
Teacher spread0.163 · 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

Citations8
Published2002
Admission routes1
Has abstractyes

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