Growth Response of Tapinanthus bangwensis (Engl. and Krause, Danser) Seeds in vitro and Artificial Infestation in the Field
Bibliographic record
Abstract
The growth response of mistletoe, Tapinanthus bangwensis (Engl. and Krause) Danser to different temperatures and photoperiods on hormone-free culture media in vitro were assessed. Cultural procedure with plant sap extracts and field infestations were used to study the mistletoe interaction with Gliricidia sepium, Mangifera indica, Coffee robusta and Theobroma cacao. In the laboratory, mistletoe responded positively to a temperature range of 25-30 °C and 16-24 hr photoperiod. The seedling stages of germination, holdfast and haustorium development and leaf emergence were achieved optimally on an artificial medium of 1% (w/v) mineral salts and vitamins, 3% (w/v) sucrose, 1% (w/v) glucose, 0.04% (w/v) potassium nitrate (KNO3) and 1% (v/v) amino acid. Generally, growth was faster in field infestation than in vitro culture. Tapinanthus bangwensis did not develop on G. sepium branches and its extracts. This is consistent with field observations where mistletoes were not found on G. sepium. The selective nature of T. bangwensis to develop on different hosts and their extracts reflects differences in biochemical/nutrient contents of hosts sap. However, it was more probable that physical destruction of M. indica cambial cylinder by mistletoe haustorium deprived the parasite of water and nutrients resulting in its death. Based on T. bangwensis growth responses in nature and in culture, T. cacao was found susceptible, C. robusta was moderately susceptible and G. sepium and M. indica was non-hosts.
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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 | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| 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".