Short Internode Phenotype

Short internode phenotype describes cannabis plants exhibiting compressed distances between leaf nodes along the main stem and branches. This trait is often observed in indica-dominant genetics and certain regional landraces, where compact architecture evolved as an adaptation to specific environmental pressures. Breeders identify this phenotype through visual assessment during vegetative growth, measuring the spacing between successive leaf pairs. The expression varies within populations and can be influenced by light spectrum, photoperiod, and nutrient availability during development. Understanding internode length is fundamental to crop planning, canopy management, and yield prediction in both indoor and outdoor cultivation settings.

Growers and breeders working with short internode material often select for this trait when developing cultivars suited to space-constrained environments or high-density production systems. Dense branching structure from short internodes can impact light penetration, air circulation, and pest/disease management strategies, making it a key consideration in breeding objectives.