Bast Fiber Genetics

Bast Fiber Genetics refers to cannabis cultivars selected or bred for enhanced cellulose and phloem tissue development, traits historically relevant to industrial hemp breeding programs. These plants typically exhibit robust stem structure and higher fiber-to-woody-core ratios, characteristics that breeders have tracked across generations when targeting non-flower applications. The genetic markers associated with bast fiber expression remain incompletely characterized in peer-reviewed literature, though cultivation records from European and North American hemp programs document observable differences in stem composition among varieties. This lineage category overlaps significantly with agronomic hemp breeding rather than contemporary cannabis flower breeding, reflecting historical separation between fiber-focused and cannabinoid-focused plant development.

Breeders working in industrial hemp and dual-purpose cultivars monitor bast fiber traits to stabilize stem yield and processing efficiency. Fiber genetics remain relevant in breeding programs prioritizing biomass quality over cannabinoid expression, though modern cannabis genetics have largely diverged from this selection pathway.