The present disclosure relates in part to a method for identifying a soybean germline transformant from a population of soybean transformants by incorporating a selection agent within rooting medium used in tissue culture during the soybean transformation process. The soybean germline transformants are selected from a population of soybean transformants which are comprised of a combination of non-germline and germline soybean transformants. The soybean non-germline transformants are identified and eliminated early in the transformation process. The soybean germline transformants are identified and selected for culturing into mature soybean plants. The method is readily applicable for screening and obtaining a soybean germline transformant at an early stage in the soybean transformation process.