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) The activity of the chlorophyll fluorescence parameter (Fv / Fm); (B) the activity of photosystem Ⅱ (ФPSⅡ); (C) the activity of photosystem Ⅰ (ФPSⅠ). Error bars indicate standard errors of three biological replicates.
