Phenotypic variability analysis of saffron (Crocus sativus L.) germplasm for trait-specific improvement
Bibliographic record
Abstract
A comprehensive examination of 264 saffron (Crocus sativus L.) germplasm lines was done to examine phenotypic variability in agro-morphological features, essential quality elements (crocin, picrocrocin, safranal), and resistance to corm rot. Significant variation was reported for most morphological variables, with corm width and corm weight recording the largest coefficients of variation, while flower and leaf quantity showed fairly limited range. Among quality traits, crocin content displayed the largest variability. Strong additive genetic control and appropriateness for clonal selection were shown by high heritability combined with significant genetic advancement for leaf length, stigma yield, and corm weight. PCA indicated four significant components explaining 64.01% of total variance, with PC1 and PC2 predominantly influenced by floral features and corm qualities, respectively. Screening against corm rot under in vitro conditions indicated incubation times ranging from 2–5 days, and twenty-two genotypes displayed highly resistant reactions. Several excellent genotypes such as SRS-Saf-144, SRS-Saf-199, and SRS-Saf-206 were recorded for their combined performance in yield, quality, and disease resistance. Overall, the study shows significant exploitable variety in the saffron germplasm, offering a strong basis for clonal selection, trait-specific modification, and the creation of high-yielding, disease-resistant saffron cultivars.
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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) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 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) | 0.001 | 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".