Effect of prohexadione calcium on vegetative growth, seed maturity and seed yield of the Kabuli chickpea cultivar CDC Frontier
Bibliographic record
Abstract
Lokuruge, P., Tar'an, B., Harms, T., Howard, R. and Bandara, M. 2015. Effect of prohexadione calcium on vegetative growth, seed maturity and seed yield of the Kabuli chickpea cultivar CDC Frontier. Can. J. Plant Sci. 95: 571-578. In the western Canadian semi-arid prairies, chickpea maturity is often delayed by the presence of cool and wet, growing conditions, particularly during the late growth stages of the crop. This results in reduced seed yield and quality, by increasing vegetative growth and delaying seed maturity. A field study was conducted in 2010 and 2011 at Brooks and Bow Island in Alberta to evaluate the potential use of prohexadione calcium (PC) to control secondary vegetative growth of Kabuli chickpea cultivar CDC Frontier. PC was foliar-applied at 750, 1500, 3000 and 4500 mg (a.i.) L-1 to CDC Frontier chickpeas at 10, 20 and 30 d after first flower appearance. Results indicated that PC had no significant impact on plant height at the late reproductive stages, mainly due to the resumption of crop growth 2 to 3 wk after the PC treatment; PC decreased seed yield significantly without affecting the green and immature portions. Increasing concentration of PC significantly increased 1000-seed weight only in 2011. In summary, our results suggest that PC treatment at reproductive phase is not a reliable option for controlling excessive crop growth, synchronising seed maturity or improving productivity of chickpea cultivar CDC Frontier in southern Alberta.
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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 | 0.000 |
| 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 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".