RELATIONSHIPS BETWEEN EXTRACTABLE CHLOROPHYLL AND SPAD VALUES IN MUSKMELON LEAVES
Why this work is in the frame
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Bibliographic record
Abstract
Chlorophyll content of muskmelon is usually determined by destructively sampling plant leaves. However, a hand-held SPAD-502 Chlorophyll Meter provides rapid and nondestructive measurements of leaf chlorophyll content. This study aims to determine the relationships between extractable chlorophyll and SPAD values in muskmelon leaves. SPAD readings were significantly related to extracted chlorophyll of muskmelon leaves both on a fresh weight and leaf area basis. Quadratic equations best described their relationships. At 10 days after nitrogen (N) fertilization, the r2 values for chlorophyll a, b, and total chlorophyll on a fresh weight basis were 0.84, 0.86, and 0.85, respectively, while on a leaf area basis, r2 values were 0.92, 0.95, and 0.94, respectively. At 17 days after fertilization, the r2 values for chlorophyll a, b, and total chlorophyll on a fresh weight basis were 0.57, 0.49, and 0.56, respectively, while on a leaf area basis, r2 were 0.72, 0.67, and 0.71, respectively. Therefore, the SPAD-502 Chlorophyll Meter can be used to measure chlorophyll content of muskmelon leaves.
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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 | 0.001 | 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 it