Cultivation Style Low Stress Training

Low Stress Training (LST) refers to a set of cultivation techniques that manipulate plant structure without causing significant damage to the plant. These methods—including bending, tying, and gentle repositioning—are commonly used to increase light exposure to lower branches and manage plant height. LST is distinguished from High Stress Training (HST) techniques like topping or heavy pruning, which remove tissue. Breeders and cultivators working with LST often select for plant phenotypes that exhibit flexible stems and responsive lateral branching. This classification encompasses methods such as screen of green (SCROG), tie-down techniques, and gradual canopy spreading, which are frequently employed across indoor and outdoor production settings.

Breeders developing cultivars for controlled environments often prioritize traits that respond well to LST—including flexible internodes, vigorous lateral growth, and predictable branch architecture. Selecting for these structural characteristics can improve both yield consistency and cultivator control without requiring tissue removal.