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.
Effects of drought stress and rewatering on gas exchange (A) and chlorophyll fluorescence (B) parameters in cowpea. Lines indicate the well-watered control (black), drought-stressed (red), and rewatered plants (blue; n = 6; error bars = SD divided by 2 for better visibility).
