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.
Biomass accumulation of transgenic and untransformed alfalfa lines. Plants were grown for 15 d in acid soil (pHH2O = 4.0, AlKCl = 71 μg mL−1). Bars = means + se (n = 10).