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.
Root hair development in 70 days old tobacco roots. Root hair density (A, at P < 0.05), root hair length (B, at P < 0.01) and morphological view (C, Bar-500 μm) at 70 days under different conditions. Values are represented as means ± SE (n = 3). Different letters on bars indicate significant differences among treatments according to Duncan’s test. DAE stands for days after emergence.
