Host range of a powdery mildew (<i>Erysiphe orontii</i>) on tomato
Bibliographic record
Abstract
A powdery mildew disease of greenhouse tomato first appeared in the Fraser Valley of British Columbia in 1995. The causal agent was identified as Erysiphe orontii. Host range studies were conducted using uniform levels of inoculum of the pathogen under greenhouse conditions. Of 26 tomato cultivars inoculated, cv. DRW4409F1 had the least powdery mildew infection. Twenty-five of the 26 tomato cultivars tested, as well as eggplant cv. Early Long Purple, nightshade and tomatillo, were susceptible to E. orontii. Tobacco and potato (cv. Epicure) had slight infection. Cultivars of pepper, potato, corn, strawberry, raspberry, bean, feverfew, borage, delphinum, petunia, impatiens, gazania, morning glory, zinnia, african daisy, cosmos, wild buckwheat, curled dock, and knotweed were not susceptible to E. orontii. This study indicates that resistance to powdery mildew of tomato is available and should be explored in breeding programs to develop powdery mildew-resistant cultivars for the greenhouse industry. Key words: Host resistance, Lycopersicon esculentum, powdery mildew, Solanaceae
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 imitationNot 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.
Distilled classifier scores by category (both heads)
| 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) | 0.001 | 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 source (direct Gemma or distilled Codex), 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".