Heat Stress Compounds

Heat stress compounds refer to volatile organic compounds (VOCs) and secondary metabolites that cannabis plants produce in response to elevated temperatures and environmental pressure. These include elevated levels of certain terpenes and phenolic compounds that emerge when plants experience sustained heat above their optimal growth range. Breeders and cultivators monitor heat stress signatures in breeding programs to identify lines with either superior heat tolerance or distinctive aromatic profiles that emerge under thermal stress. Understanding these compounds is relevant for indoor cultivation optimization, regional adaptation, and selection of resilient genetics. Heat stress compounds differ from baseline terpene profiles and represent dynamic metabolic shifts rather than stable chemotype markers.

Plant breeders selecting for heat-tolerant cultivars often assess secondary metabolite production under controlled thermal stress to identify lines that maintain vigor and stable terpene expression. Heat resilience is increasingly valuable for outdoor and greenhouse programs in warm climates.