Humidity Vpd
Vapor Pressure Deficit (VPD) is an environmental metric rather than a terpene compound, but it significantly influences terpene expression and preservation in cannabis cultivation. VPD measures the difference between air saturation and actual moisture content, typically expressed in kilopascals (kPa). Breeders and cultivators monitor VPD because it affects transpiration rates, stomatal function, and volatile compound stability during flowering and post-harvest stages. Optimal VPD ranges (commonly 0.8–1.2 kPa during vegetative growth, 1.0–1.6 kPa during flowering) are associated with consistent terpene profiles and cannabinoid development. Understanding VPD is essential for preserving delicate aromas in high-terpene phenotypes.
Humidity Vpd strains
No strains tagged into Humidity Vpd yet — they'll appear here as breeders submit lineage records under this terpene.
Vapor Pressure Deficit (VPD) is an environmental metric rather than a terpene compound, but it significantly influences terpene expression and preservation in cannabis cultivation. VPD measures the difference between air saturation and actual moisture content, typically expressed in kilopascals (kPa). Breeders and cultivators monitor VPD because it affects transpiration rates, stomatal function, and volatile compound stability during flowering and post-harvest stages. Optimal VPD ranges (commonly 0.8–1.2 kPa during vegetative growth, 1.0–1.6 kPa during flowering) are associated with consistent terpene profiles and cannabinoid development. Understanding VPD is essential for preserving delicate aromas in high-terpene phenotypes.
Cultivators working with aromatic-dominant strains must control VPD to prevent terpene loss through excessive transpiration or condensation-induced degradation. Breeders selecting for terpene stability often evaluate parent plants under standardized VPD conditions to identify genotypes that maintain volatile profiles under variable humidity.
Educational reference · Cultivar metadata only · No medical claims