Heat Tolerance Data for 36 Oncidium Orchid Cultivars

36 Oncidium orchid cultivars were evaluated for heat tolerance through field and controlled environment screening. The study identified 8 highly heat-tolerant cultivars and established 40.00°C as a discriminative threshold. Xiaoyan Luo authored this research, which was last updated in May 2026.

Use Cases

• Screen and select heat-tolerant orchid cultivars based on physiological biomarkers like relative electrolyte conductivity (REC).
• Validate heat tolerance thresholds for breeding programs using the identified 40.00°C discriminative temperature.
• Analyze the relationship between membrane stability and osmotic adjustment, which explained 80.95% of variance in heat adaptation.
• Investigate the role of proline accumulation as a passive compensatory response versus an active protective mechanism.

Strengths

• Includes data from 36 distinct cultivars, providing a comparative basis.
• Identifies three core physiological biomarkers (REC, proline, POD activity) with coefficient of variation > 50.00%.
• Combines natural field heatwave screening with controlled environment validation for robustness.

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 (13.1 KB), suggesting limited scope or summary data.

Provenance

Source

figshare

Collection Method

Systematic evaluation 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.