Abstract: The present invention relates to a system (110) and a method for sorting a plurality (112) of seed grains (114). The system (110) comprises an individualizing device (120), a sampling device (132) for introducing the individualized seed grain (114) into a measuring device (136) for the classification of the individualized seed grain (114), a receiving device (146, 200) for receiving the classified seed grain (114) and also a transporting device (118, 124, 134, 144, 152) for the at least partially pneumatic transport of the seed grain (114). The invention also relates to the sampling device (132), which comprises an outer tube (160) for receiving the sampling device (132) into the measuring device (136), a sample chamber (138) of the measuring device (136) being provided within a volume (164) of the outer tube (160).