Phenotypic Characterization of a Diverse Population of <em>Cannabis sativa</em> for Agronomic, Morphological, and Biochemical Traits

Abstract

Cannabis (Cannabis sativa L.) stands as a historically significant and culturally important plant, embodying economic, social, and medicinal relevance for human societies. However, years of prohibition and stigmatization have hindered the cannabis research community, which is hugely undersized and suffers from a scarcity of understanding of cannabis genetics and how key traits are expressed or inherited. In this study, we conducted a comprehensive phenotypic characteriza-tion of 176 drug-type cannabis accessions, representative of Canada&amp;#039;s legal market. We assessed germination methods, evaluated various traits including agronomic, morphological, and canna-binoid profiles, and uncovered significant variation within this population. Notably, yield dis-played a negative correlations with maturity-related traits but positive correlation with fresh biomass. Additionally, the potential THC content showed positive correlation with maturi-ty-related traits but negative correlation with yield. Significant different were observed between plants derived from regular female seeds and feminized seeds, as well as between plants derived from cuttings and seeds for different traits. This study advances our understanding of cannabis cultivation, offering insights into germination practices, agronomic traits, morphological charac-teristics, and biochemical diversity. These findings establish a foundation for precise breeding and cultivar development, enhancing cannabis&amp;#039;s potential in the legal market.