Node Expression
Node expression refers to how cannabis plants develop and space their branch nodes along the main stem and lateral branches. This trait encompasses both the distance between nodes (internode length) and the overall pattern of lateral development, which can range from compact, densely-branched structures to tall, open-spaced phenotypes. Breeders observe node expression as a heritable characteristic that varies significantly across strains and is influenced by both genetics and environmental factors like light intensity and photoperiod. Understanding node expression is foundational in breeding programs, as it directly affects canopy architecture, light penetration, and cultivation efficiency.
Node Expression strains
No strains tagged into Node Expression yet — they'll appear here as breeders submit lineage records under this classification.
Node expression refers to how cannabis plants develop and space their branch nodes along the main stem and lateral branches. This trait encompasses both the distance between nodes (internode length) and the overall pattern of lateral development, which can range from compact, densely-branched structures to tall, open-spaced phenotypes. Breeders observe node expression as a heritable characteristic that varies significantly across strains and is influenced by both genetics and environmental factors like light intensity and photoperiod. Understanding node expression is foundational in breeding programs, as it directly affects canopy architecture, light penetration, and cultivation efficiency.
Breeders select for specific node expression patterns to develop strains suited to different cultivation methods—compact, tight-node varieties for indoor systems and shorter flowering windows, versus open-node structures for outdoor or high-light environments. Node expression stability across generations is a key selection criterion when establishing new cultivars.
Educational reference · Cultivar metadata only · No medical claims