Performance of Source Nursary of Pollen Parent and Cms Lines of Brassica napus L.
Bibliographic record
Abstract
The study was conducted with the objective to know the performance of floral and yield characteristics of pollen and CMS parent. Significant variation was observed for flowering and yield contributing characteristics among two CMS lines (Z1 and Z2) and 21 pollen parents. The pollen parent Nap2019 was found as early flowering whereas the parent Nap2013 was the late for first flowering. The highest length of anther was found in Nap9907 and short anther in Nap9905. Slender anther was produced by the genotype Nap2037 and bold anther was produced by the genotype Nap9907. Length of filament was the highest in Nap2012 and the lowest in Nap0130. For yield contributing characteristics, the genotype Nap9906 matured earlier than all other genotypes while the maximum duration took by Nap2013. The longest inflorescence was found in the genotype Nap2001 and the smallest in Nap9906. The highest number of siliqua per plant was counted in Nap2066 and it was the lowest in Nap9906. Wide variability in respect of number of seeds per siliqua was exhibited among the genotypes and it was the lowest in Nap9901 and the highest in Nap94006. In case of 1000-seed weight, the genotype Nap2022 produced larger seeds and the genotype Nap9907 produced smaller seeds. The highest seed yield per plant was recorded in the genotype Nap2066 and the lowest in Nap9905. In case of CMSZ1 and CMSZ2, 50% plants were flowered within 45 days after sowing. The CMS plant produced small, slender anther with shorter filament compare to pollen parents. The out crossing rate of CMSZ1 and CMSZ2 was 40.31% and 47.96%, respectively. Time required for days to 80% maturity of CMSZ1 and CMSZ2 were about 106 days. The number of siliqua per plant was found the highest in CMSZ1 and the lowest in CMSZ2. The average number of seeds per siliqua and seed yield per plant was recorded the highest in CMSZ1 and the lowest in CMSZ2. The pollen parent with desirable performance and CMS parents CMSZ2 having higher out crossing rate can be used for future Brassica napus hybrid breeding program.
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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 | 0.001 | 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) | 0.001 | 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 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".