A critical question can be stated as a null hypothesis: tree water use per unit leaf area (leaf efficiency) is independent of eucalypt species.
(tree water; is; independent of eucalypt species) (tree water; use; L:per unit leaf area) Context(tree water use,List([56, 70))):(A critical question; can be stated; as a null hypothesis)
tree water use,List([56, 70))
tree water tree water A critical question
is use can be stated
independent of eucalypt species
L:per unit leaf area
as a null hypothesis