Ph Drift

pH Drift refers to genetic lines selected for their tendency to shift soil or substrate pH levels during cultivation, a trait breeders have documented across various cannabis populations. This characteristic can occur through root exudates and metabolic processes that gradually acidify or alkalinize the growing medium over a plant's lifecycle. Understanding pH drift is relevant for breeding programs focused on developing cultivars suited to specific growing systems or regions with particular water chemistry profiles. Lineage records frequently report pH drift behaviors in landrace-derived and domesticated lines, particularly those adapted to unusual soil conditions. This trait intersects with nutrient availability and medium stability, making it valuable for breeders optimizing cultivation protocols.

Breeders working with pH Drift genetics can select for predictable medium chemistry changes, enabling development of cultivars that thrive in less-buffered substrates or require minimal pH adjustment. This trait is particularly relevant in organic and living-soil breeding programs where pH stability cannot be externally controlled.