Figure 3.
Morphology of various embryogenic structures in: (A) P. abies and (B) P. omorika. proembryonic structures (PEM) I–III – embryogenic structures type I–III.
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.