The objective of this study investigated the effect of colchicine on growth and chemical composition of Withania Somnifera plant. Colchicine is currently used to improve crops and chemical compounds. The colchicine concentrations were 0.2, 0.3, and 0.5% for periods of 12, 24, and 36 hours. The results of both years showed that colchicine was significant in reducing plant growth parameters (plant h...