Plant Surface Chemistry

Plant surface chemistry refers to the composition and concentration of compounds present on cannabis flower surfaces, leaf trichomes, and stem glandular structures. This includes cannabinoids, terpenes, flavonoids, and non-volatile lipids that accumulate in trichome heads and epicuticular waxes. Surface chemistry varies significantly across genotypes and is influenced by environmental conditions, harvest timing, and post-harvest handling. Breeders and cultivators monitor surface chemistry as an indicator of terpene volatility, cannabinoid stability, and overall phytochemical expression. Understanding these surface compounds is relevant to breeding programs targeting specific aromatic profiles and preservation of volatile constituents during cultivation and storage.

Breeders select for robust trichome development and consistent surface compound deposition when working toward stable lineages. Analysis of surface chemistry helps identify phenotypes with desired volatile retention and can indicate genetic stability across generations.