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.
Correlation between foliar rutin content per leaf dry weight (DW, g kg–1) and leaf color assessed by smartphone image analyses (hue). Every data point represents measurements of an individual leaf sample. Trend lines represent polynomic regression fit.
