Bract Adhesion

Bract adhesion refers to how tightly the small leaf-like structures (bracts) attach to the flower's central stem and calyx tissue during development. This physical characteristic varies significantly across cannabis genetics, ranging from loose, easily-separated bracts to those firmly integrated with underlying floral material. Bract adhesion affects flower density appearance, ease of trimming, and how tightly resinous structures are packed during maturation. Lineage records frequently report that certain breeding lines express consistent bract adhesion patterns, making it a useful observable trait for phenotype identification and breeding line stability assessment. Understanding bract adhesion helps cultivators and breeders evaluate plant structure consistency across generations and environmental conditions.

Breeders select for specific bract adhesion patterns to stabilize visual traits and processing characteristics within a line. Tight bract adhesion is often prioritized in breeding programs targeting dense flower structure, while looser patterns may be maintained when easier manicuring or visual appeal is a selection goal.