Post Harvest Trait Expression

Post-harvest trait expression refers to phenotypic changes that emerge during curing, drying, and storage rather than during growth. Cannabis flowers undergo chemical transformations after harvest—terpene profiles shift, cannabinoid ratios decarboxylate, and pigmentation may deepen or fade depending on moisture, temperature, and light exposure. Breeders and cultivators monitor these changes to understand how genetics express differently post-harvest versus in the living plant. This family encompasses both desirable stabilization (flavor development, potency increase) and potential degradation (oxidation, mold susceptibility). Understanding post-harvest expression is critical for consistent product quality and accurate phenotype documentation.

Breeders selecting for post-harvest stability prioritize lines that maintain terpene integrity, resist degradation, and express consistent color and structure after drying. Seed companies often evaluate cured samples alongside fresh tissue to distinguish true genetic potential from temporary environmental responses.