Root growth of interspecific sunflower seedlings derived from wild perennial sunflower species
Bibliographic record
Abstract
Early root and hypocotyl growth and root branching patterns were characterized for five genetically diverse interspecific sunflower hybrids derived from wild perennial Helianthus species and two cultivated hybrids. Seedlings were grown in polyethylene pouches at 25 °C in the dark for 10 d. The hybrid and days after sowing (DAS) were sources of variation for primary and lateral root length, number of lateral roots, root branching density, root fresh weight, and hypocotyl length and fresh weight. There were high positive correlations among root growth characteristics that should be helpful in selecting sunflower hybrids adapted to arid conditions. The wild interspecific sunflower hybrids derived from wild perennial species possessed less-than-expected variability in early root growth. Nevertheless, there appears to be adequate genetic variability for further selection and genetic improvement. Key words: Helianthus species, growth pouch, primary roots, lateral roots, branching density, hypocotyl
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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 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 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 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".