An official website of the United States government
Here's how you know
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.
Fig. 4. The rate of rye root elongation after exposure to different levels of Al (A) and a combination of Al and malic acid (B). Values are means ± s.e. of eight to ten roots.