Moisture Stress Compounds

Moisture stress compounds are volatile organic compounds (VOCs) produced by cannabis plants in response to water deficit conditions. These secondary metabolites—including certain terpenes and phenolic compounds—emerge as part of the plant's physiological adaptation to drought or inconsistent watering. Breeders and cultivators observe these aroma signatures as markers of plant stress responses, though their expression varies significantly across genotypes. Understanding these compounds is relevant to both breeding programs selecting for drought tolerance and cultivation practices monitoring plant health. The volatile profile shifts measurably under moisture stress, making aroma chemistry a potential phenotyping tool in research settings.

Breeders working in water-limited environments or selecting for drought-resilient cultivars often monitor stress-compound profiles as secondary markers of physiological adaptation. These aroma signatures can indicate genetic predisposition to water-use efficiency, though they are not standalone selection criteria.