In the competition study (IV), intra- and interspecific competition between mycorrhizaforming
Trientalis europaea and non-mycorrhizal Carex bigelowii was examined. The
micropropagated specimens of low-alpine origin were grown either singly or together
with a conspecific or heterospecific individual with AM inoculum (Glomus mosseaespores
with adhering root pieces in sand) present or absent for 90 days. Shoot and root
dry weights and relative growth rates (RGR) were determined, and root AM colonizations
assessed as in the field studies (Chapter 2.2).