Terpal® — plant growth regulator used to increase the yield of cereal crops. The preparation contains active ingredients mepiquat chloride and etephon, ensuring its effective impact on plants. The application scope covers treatment of cereal crop sowing at a rate of 1.0 to 2.5 liters per hectare. The preparation is available in liquid concentrate (RC) form and is manufactured by BASF SE, located in Ludwigshafen, Germany. Using Terpal® promotes improved plant growth and ensures stable results when applied correctly. Terpal® is registered under number 15187 with registration date August 19, 2022. This plant growth regulator is widely used in agriculture due to its effective properties and high quality, making it a popular choice among farmers and specialists.