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.
S1: the three-leaf stage; S2: the five-leaf stage; S3: the over-winter stage. Asterisks indicate significant difference or highly significant difference between Guomai 301 and dmc in different stages.
