
TY  - JOUR
A1  - Muchow, RC 
A1  - Fisher, MJ 
A1  - Ludlow, MM 
A1  - Myers, RJK 
T1  - Stomatal Behaviour of Kenaf and Sorghum in a Semiarid Tropical Environment. II. During the Day
JF  - Functional Plant Biology
JO  - Functional Plant Biol.
Y1  - 1980
VL  - 7
IS  - 5
SP  - 621
EP  - 628
KW  - 
UR  - https://doi.org/10.1071/PP9800621 
N2  - The influence of leaf water potential (&#936;l), saturation deficit (&#948;e), and temperature on stornatal conductance (gs) of kenaf and sorghum was determined at non-limiting quantum fluxes both at high and low soil water status in the field, and under controlled environment conditions. Sorghum stomata closed in response to &#936;l in a manner consistent with the classical feedback control, while kenaf stomata responded directly to &#948;e, independently of &#936;l. The rate of decrease of gs of kenaf with increasing &#948;e was greater at higher temperatures. Also the stomata of stressed kenaf were less sensitive to &#948;e than those of the well-watered crop due to the limitation in degree of stomatal opening imposed by water stress.    The degree of stomatal adjustment in kenaf was also assessed. In the stressed kenaf, the &#936;l at half the maximum gs was c. 0.17 MPa lower and gs was more sensitive to decreases in &#936;l, than in the well watered control. However, there was little difference in the &#936;l at 95% stomatal closure. 
ER  -

