Figure 4.
Correlation analysis between antioxidant enzymes (APX, (a,d); POD, (b,e); SOD, (c,f)) and leaf enrichment of Populus alba (a–c) and P. russkii (d–f) under different strontium and diesel oil treatments.
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.