Black Knot [Apiosporina Morbosa(Schw.)] Resistance in Importedand Domestic Prunus DomesticaL. Germplasm andCultivars
Bibliographic record
Abstract
Black knot Apiosporina morbosa(Schw.) (BK) is an important fungal disease of Prunus domesticaand other Prunus species in North America. BK causes economic losses in the plum growing regions of northern and eastern U.S., and eastern Canada. Relatively few P. domesticacommercial cultivars are resistant to BK. Evaluation of resistance to BK in P. domesticaplums including an evaluation of infection of new shoot growth following pruning was carried out over four years. The 43 genotypes evaluated included 23 accessions from the U.S. National Plant Germplasm System (NPGS)-Davis, California and cultivars and selections from the U.S., Canada, and Europe. Based on the evaluations, genotypes were classified as highly resistant, moderately resistant, susceptible or highly susceptible. Highly resistant genotypes, without visible symptoms made up 44% of the germplasm evaluated and of these, 68% were accessions from the U.S. NPGS collection. While the inheritance of resistance remains to be determined, these evaluations indicate that sources of high level resistance are available in P. domesticathat can be utilized in breeding highly resistant commercial cultivars.
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".