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.
Effects of exogenous ethylene and mercuric chloride on Qv of aspen seedlings. Each data point indicates mean (n = 6) ± se. Arrows indicate the time of treatment with ethylene, mercuric chloride, 2-mercaptoethanol (ME), or water (control).