170
60,--,----------------------.-~
50
in 40
10
- Tidestromis .. A. ssbu/oss _. A. g/abriuscu/a
A
--" .
\ .
\ ' .
\.
O~~--~--~--~--~--~--~~~
10
20
30
40
50
Temperature (0C)
0.3,------------------------------,
~ 0.2
as
...
.r;
~
o
...
Cl
Q) 0.1
>
~
Qj
a:
8
/'
/'
"
.. '. \
. \
. ~
Day temperature (0C)
.\
\
\
\
\
\
J.S. Pereira
Fig. 8.8A,B. Responses to air temperature of A (measured at 1600llmolm- 2 s- 1 of
photon flux density and 320 ppm CO2) and Rw in three north-american shrubs, Tidestromia
oblongifolia, Atriplex sabulosa and Atriplex glabriuscula. The leaves of Tidestromia
oblongifolia were acclimated to high temperatures (grown at 40/30°C day/night temperatures) and the two Atriplex species were acclimated at lower temperatures (grown at
15/11 °C day/night temperatures). (Berry and Raison 1981)