This study is primarily related to growth regulators focusing on a major group ethylene produced from a solid i.e. calcium carbide (C2H4). Calcium carbide is best source of two gases, acetylene and ethylene. Acetylene acts as nitrification inhibitor while ethylene acts as phytohormone. Calcium carbide based formulations are effective to augment yield of vegetables especially cucumber. A pot experiment was conducted in the wire house of Institute of Soil and Environment & Sciences; University of Agriculture Faisalabad to evaluate the effect of different rates of formulated (paint coated) calcium carbide (CaC2) on growth and yield of cucumber (Cucumis sativus L.).