Registration of Oilseed Sunflower Restorer Germplasms RHA 476 and RHA 477, Adapted for Short Season Environments
Bibliographic record
Abstract
Northward expansion and double crop use of sunflower (Helianthus annuus L.) is limited by the lack of commercial hybrids with early maturity. We seek to provide the sunflower industry with new, early‐maturing restorer inbred germplasms with high yield potential and favorable agronomic and seed oil traits, specifically, resistance to downy mildew, tolerance to postemergent herbicides such as the imidazolinones, and increased oleic acid in the seed oil. RHA 476 (Reg. No. GP‐344, PI 682129) and RHA 477 (Reg. No. GP‐345, PI 682130) are restorer inbred germplasms developed by pedigree selection and testcross evaluation that can fill this need. RHA 476 possesses high yield potential and high oleic acid (≥850 g kg−1) in the seed oil. RHA 477 possesses high yield potential, downy mildew resistance conditioned by PlARG, and imidazolinone herbicide tolerance. These lines were released by the USDA‐ARS, Fargo, ND, in collaboration with Agriculture and Agri‐Food Canada, Indian Head, SK, to fill the need for publicly available lines with early maturity in a high‐yielding genetic background.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 0.002 |
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".