Summary of Photosynthetic Response of Cannabis sativa L.

The effects of different photosynthetic photon flux densities (PPFD) of 0, 500, 1000, 1500 and 2000 mol=m2{sec, temperatures in centigrade (oC) of 20, 25, 30, 35 and 40, and CO2 concentrations of parts per million (PPM) of 250, 350, 450, 550, 650 and 750 on gas and water vapor exchange characteristics of Cannabis sativa L. were studied. These variables were used to determine the suitable and efficient environmental conditions for its indoor mass cultivation for pharmaceutical uses.