Rhizome and stolon development of bermudagrass cultivars in a transition-zone environment
Bibliographic record
Abstract
Bermudagrass (Cynodon spp.) is a warm season turfgrass that spreads by stolons and rhizomes. The present study aimed to increase knowledge on development of stolons and rhizomes in fertile (‘LaPaloma’ and ‘Yukon’) and sterile (‘Patriot’ and ‘Tifway’) cultivars of bermudagrass. A plot trial was established in May 2013 in Legnaro, northeastern Italy. Fertile cultivars were seeded while sterile cultivars were established by vegetative plugs. Turf samples were collected from autumn 2013 until summer 2015 on March, July, and October. Total length of stolons and rhizomes was measured and total dry weight was determined. The concentration of starch in stolons and rhizomes in October was also determined. The stolon and rhizome density per unit area, the rhizome specific weight, and the rhizome/stolon length and weight ratios were calculated. Sterile cultivars had higher stolon and rhizome density compared to fertile cultivars for both length. In all cultivars, the production of stolons was favoured over that of rhizomes and rhizomes began to develop more in the second season after establishment. Cultivars did not differ significantly in starch content, indicating no relationship between stolon and rhizome density and carbohydrate reserve accumulations.Abbreviations: LD: length density per unit area; WD: weight density per unit area; SW: specific weight; LR: rhizome-to-stolon length ratio; WR: rhizome-to-stolon weight ratio; TS: total starch per unit area
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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) | 0.000 | 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 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".