Volatile Suppression

Volatile Suppression refers to genetics that produce notably reduced aromatic compound expression compared to their parent lines or strain classification norms. This trait involves terpene and volatile organic compound (VOC) production that remains below expected levels, resulting in relatively neutral or muted sensory profiles. The mechanism typically involves recessive alleles affecting terpene synthase expression or volatile biosynthesis pathways. Lineage records frequently report volatile suppression appearing in crosses between aromatic-dominant parents, suggesting complex polygenetic regulation. Breeders studying this trait note it can result from environmental stress responses, genetic bottlenecks in breeding programs, or intentional selection for low-VOC phenotypes.

Breeders working in this category investigate volatile suppression as a study in terpene genetics and expression variability. Understanding when and why aromatic compounds fail to develop helps clarify dominant/recessive terpene inheritance patterns and environmental triggers affecting secondary metabolism.