Histopathology of Root-Knot Nematode (Meloidogyne incognita) Infection on Two African Indigenous Vegetables
Bibliographic record
Abstract
Background and Objective: The root-knot nematodes are cosmopolitan pests attacking almost all cultivated crops including African vegetables.Two screen house studies were conducted in 2016 to investigate the histopathology of Meloidogyne incognita on Solanum macrocarpon and Amaranthus cruentus.Materials and Methods: The roots of 40 seedlings of Solanum macrocarpon were inoculated with 1,000 eggs of Meloidogyne incognita; the remaining 40 seedlings served as controls.Ten inoculated and 10 uninoculated seedlings were uprooted at seven days intervals.The study was repeated once.The roots were processed and sectioned.The sections were stained and examined under a compound microscope to determine giant cell formation.The establishment of Amaranthus cruentus trial followed a similar pattern to that of Solanum macrocarpon.Results: The Solanum macrocarpon and Amaranthus cruentus are susceptible to Meloidogyne incognita.This was evidenced by the formation of giant cells in the root tissues of the two vegetables.Conclusion: Solanum macrocarpon and Amaranthus cruentus are susceptible to Meloidogyne incognita.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.003 |
| 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".