Step 1: Schuepp proposed the Korper Kappe theory (German for body cap theory) to explain the organisation of the root apical meristem.
Step 2: It divides the root apex into two regions, the Korper (body), whose cells divide in more than one plane and give rise to the main root tissues, and the Kappe (cap), whose cells divide mainly by transverse walls and form the root cap.
Step 3: So this theory relates to the organisation of the root apex.