Seminal Root

The first, or primary, root which begins developing as soon as a grass seed germinates. The root can consist of one or more main roots, as well as root branches. The seedling and young grass depend entirely on the primary root system for water and soil nutrients. The seminal root survives only for a short period to allow the grass plant to start to become established, by which time other roots, which is termed the secondary root system, have developed and take over.