Canna~Fangled Abstracts Photochemical efficiency is negatively correlated with the Δ9- tetrahydrocannabinol content in Cannabis sativa L. Plant Physiol Biochem. 2020 Apr 8;151:589-600. doi: 10.1016/j.plaphy.2020.04.003. Khajuria M1, Rahul VP2, Vyas D3. Author…Freedom WaresApril 8, 2020