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.
(A) Leaf water potential (Ψw), (B) net photosynthesis, (C) water use, and (D) ovary dry mass in maize deprived of water or shaded around the time of pollination. Open circles: control at high Ψw; closed circles: low Ψw; closed squares: shade. The black bar on the abscissa indicates when water was withheld from the soil and the white bar indicates the time of shading. The arrow marks the beginning of silking. Plants were hand-pollinated on day 0. Data are means ± s.e. of 4–6 plants.
