A 2026 study by Xiaoyan Luo systematically evaluated heat tolerance in 36 Oncidium orchid cultivars. The research identified 8 highly heat-tolerant cultivars and determined 40.00°C as the optimal screening temperature. It confirmed relative electrolyte conductivity, proline content, and peroxidase activity as core physiological biomarkers.
Use Cases
- Screen and rank orchid cultivars for heat tolerance based on identified physiological biomarkers.
- Validate heat tolerance thresholds for breeding programs using the 40.00°C discriminative temperature.
- Analyze the relationship between membrane stability and osmotic adjustment in plant heat adaptation.
- Investigate the role of proline accumulation as a passive compensatory response versus an active protective mechanism.
Strengths
- Identifies 8 highly heat-tolerant cultivars from a tested pool of 36.
- Provides a specific discriminative temperature threshold of 40.00°C.
- Confirms three core physiological biomarkers with coefficient of variation > 50.00%.
- Principal component analysis explains 80.95% of variance in heat adaptation.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- The dataset is very small (12.8 KB), indicating limited scope.
Provenance
- Source
- figshare
- Collection Method
- Data gathered through natural field heatwave screening, controlled environment validation, and physiological mechanism dissection under graded temperature stress.
- Freshness
- Last updated 2026-05-22 04:28:03; freshness should be verified.