What observations about the within the container

observed that whitebark pine germinants treated with biological controls, one commercially available and the other being studied for potential efficacy, experienced less seedling mortality caused by root disease than did a non-treated control. Seedlings treated with the biological controls and nonsymptomatic seedlings in the control treatment had similar morphology. The simple use of biological controls may be useful to nursery managers looking to reduce incidence of root disease in their container crops.

Explanation:

your picture is not part of the scientific method.