Fig. 15

A comparison of capitate trichome density and maturation in four cannabis genotypes that have undergone the post-harvest drying process. All samples were hand-trimmed and images were obtained at the same magnification. Data were recorded from 25 trichomes in three replicate samples (n=75). a Genotype ‘Skunk’. Glandular heads are fully formed, trichome stalks are short, and no resin is released (arrow). b Genotype ‘Temple Spice’. Trichome stalks are intermediate in length and heads are releasing  resin (arrow). c Genotype ‘Healer’. Trichome stalks are long, most have secreted resin (arrow). d Genotype ‘Terpenade’. Trichome stalks are long, many glandular heads have released resin, and many heads have detached. e Comparison of trichome density in four cannabis genotypes based on data collected directly from SEM images. Standard errors of the means are shown. f Comparison of the proportion of stalked:unstalked trichomes in four genotypes. g Comparison of the proportion of dehisced and senescent trichomes in four genotypes