Light Induced Terpene Expression

Light-induced terpene expression refers to the documented phenomenon where cannabis plants alter their volatile compound profiles in response to light wavelength, intensity, and photoperiod during flowering. Research and cultivation observations suggest that UV light exposure, particularly in the UV-B spectrum, can trigger increased production of certain secondary metabolites as a photoprotective mechanism. Breeders and researchers working in controlled environments have noted correlations between specific light frequencies and elevated levels of particular terpenes like myrcene, limonene, and pinene. This trait is of particular interest in genetic studies because it demonstrates how environmental factors interact with a plant's genetic potential to express its full aromatic complexity. Understanding light-terpene relationships helps breeders identify and stabilize strains with desirable

Breeders working with light-controlled environments document terpene variation as a phenotypic marker when selecting parent plants. This knowledge informs decisions about cultivation methodology and helps distinguish between genetically determined aroma traits and those dependent on environmental optimization.