Gland Density

Gland density refers to the concentration and distribution of trichomes—resinous structures containing cannabinoids and terpenes—across a cannabis plant's flowers, leaves, and stems. Breeders assess gland density visually and through microscopic examination to evaluate resin production potential and overall plant quality. High gland density is often associated with robust trichome coverage visible to the naked eye, while low density shows sparse or minimal resin structures. This trait is influenced by genetics, environmental conditions, and maturation stage, making it a key selection criterion in breeding programs. Gland density records are frequently documented in strain lineage histories and breeding notes to track resin-production characteristics across generations.

Breeders working to enhance resin yield and trichome development prioritize gland density as a heritable trait. Selection for high gland density across multiple generations helps stabilize lines known for robust resin production and consistent visual quality markers.