Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(A) Root phosphomonoesterase (PME) activity, (B) root phosphodiesterase (PDE) activity, (C) average root PME activity plotted with average resin P availability at each site, and (D) average root PDE activity with average resin P availability. Letters represent differences in group means among tree species and error bars are mean ± SE with n = 3 individual trees per species at each site.
