Fig. 2.
Leaf development stages expressed in thermal time (Tbase = 4·5 °C) according to the rank of the corresponding phytomer. From Jullien et al. (2009b; © IEEE).
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.