Photoperiodic Response of In Vitro Cannabis sativa Plants

The majority of commercial Cannabis sativa L. (cannabis) cultivators use a 12.0-hour uninterrupted dark period to induce flowering; however, scientific information prove this is the optimal for all genotypes lacking. Knowing genotype-specific photoperiods may help promote growth by providing photoperiod photosynthesis. To determine whether floral initiation cannabis explants respond varied in vitro, were grown under one six treatments: 12.0, 13.2, 13.8, 14.4, 15.0, and 16.0 hours per day 4 weeks. percentage flowering was highest 12.0- 13.2-hour treatments. There no treatment effects on fresh weight, final height, index. Based results, it recommended that an at least 10.8 (i.e., photoperiod) be used ‘802’ genotype. In vitro could provide unique high-throughput approach study floral/seed development secondary metabolism highly controlled conditions. Further research should if response same whole-plant level.