Identification of <i>Pythium</i> spp. from the rhizosphere of soybeans in Ontario, Canada
Bibliographic record
Abstract
Production of soybean in short-season areas of Canada is affected by Pythium species causing seed rot, seedling damping-off and root rot under the cool, moist conditions prevalent early in the growing season. To determine which Pythium species infect soybean plants under these conditions, soil samples were collected in 2010, 2011 and 2012 from soybean fields in Ontario where symptoms of damping-off or root rot were observed. Pythium spp. were isolated from soil using a seed baiting approach and selective media. PCR amplification and sequencing of the internal transcribed spacer of the nuclear ribosomal DNA allowed for identification of six different Pythium species (out of a total of 104 strains). Pythium ultimum var. ultimum (56.7%) and P. sylvaticum (29.8%) were the most frequently isolated species over all sampling years. Other species isolated included P. dissotocum (6.7%), P. ultimum var. sporangiiferum (3.8%), P. irregulare (1.9%), and P. hypogynum (1.0%).
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 distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
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".