Fiber Production Traits

Fiber production traits refer to botanical characteristics that influence cellulose development and stem structure in cannabis plants, distinct from cannabinoid or terpene profiles. These traits—including stalk thickness, bast fiber quality, and stem lignification—have historical significance in hemp breeding programs focused on textile, paper, and composite applications. Lineage records from European and Asian hemp varieties frequently document selections for robust fiber yields alongside low THC compliance. Understanding fiber morphology remains relevant for breeders working in jurisdictions where dual-purpose or industrial cannabis cultivation is permitted. Fiber traits are polygenic and environmentally responsive, making consistent documentation across growing conditions essential for breeding records.

Breeders targeting fiber-dominant phenotypes select for tall plant architecture, reduced branching, and delayed flowering to maximize stem biomass. Fiber trait expression is often correlated with lower resin production, making it a key selection criterion in breeding programs separated from high-cannabinoid lines.