Flowering Stage Temperature Sensitivity

Flowering stage temperature sensitivity describes how cannabis plants' aromatic compound production fluctuates based on environmental temperatures during the reproductive phase. Temperature shifts—particularly between day and night cycles—influence terpene expression and volatile organic compound volatility during flower development. Cooler nighttime temperatures (55–65°F) are commonly associated with enhanced anthocyanin and certain monoterpene accumulation in some genotypes, while warmer conditions may promote different terpene profiles. Breeders selecting for stable or distinctive aroma phenotypes often document temperature response patterns as part of genotype characterization. This trait reflects the complex interaction between plant genetics and cultivation environment, making it relevant for both breeding stability assessments and controlled production protocols.

Breeders working with aroma-focused cultivars monitor flowering-stage temperature ranges to identify genotypes that consistently express desired terpene profiles across different growing seasons. Understanding temperature sensitivity helps inform selection criteria for cultivars suited to specific geographic or controlled-environment production systems.