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.
Sugar concentrations in nectaries and nectar. Mean values from all measurements taken at one time point (n = 3) and the respective SDs were plotted; light and dark periods are indicated by white and black bars. (A) N. africana, (B) N. tabacum, (C) N. attenuata, (D) N. benthamiana, and (E) N. sylvestris.
