Tree Structure Phenotypes

Tree structure phenotypes describe the fundamental growth patterns and morphology that cannabis plants express during vegetative development. These include characteristics such as main stem dominance, branching angles, internode spacing, and overall plant architecture—traits shaped by genetics, photoperiod, and cultivation environment. Breeders have long classified cannabis into broad structural categories: tall columnar plants with tight internodes, bushy plants with wide branching angles, and intermediate forms. Understanding tree structure is foundational to breeding because morphology directly influences canopy management, light penetration, yield distribution, and cultivation feasibility. Historical landrace populations from different geographic regions often exhibit distinct structural signatures tied to their adaptation patterns. Modern breeding programs frequently select for spec

Breeders prioritize tree structure phenotypes when developing cultivars suited to specific environments and production methods. Structural traits are heritable and relatively stable, making them reliable selection criteria across generations for creating cultivars optimized for space efficiency, mechanical harvesting compatibility, or light-dependent yield distribution.