For cannabis plants, terpenes may be more influential than genetics
Terpenes may be a better indicator of a cannabis plant’s profile, and a better way to describe strains, than genetic ancestry, new research shows . After analyzing more than 100 samples of cannabis, a team of Canadian and Dutch researchers found that strain names — even the most well known, Sativa and Indica —tended to be poor descriptors of a plant’s genetic makeup or its lineage. In many cases, though, strain names did reflect terpene content, which is linked to aroma (and in THC-rich cannabis may also influence psychoactive effects). Wait. What Are Terpenes? Terpenes are naturally-occurring chemical compounds found in plants that give them signature scents. Highly aromatic plants including cannabis, herbs and citrus fruits have a relatively high terpene content. Lemon zest? That’s the terpene limonene. Pine? That’s pinene. A cannabis plant may make 20 to 40 types of terpenes. Terpenes do have an evolutionary purpose. In nature, they can repel pests like insects and fungus, or a...