LIGHT CURVES OF PHOTOSYNTHESIS 



971 



11 



V) 

 UJ 



I 



>- 

 </i 

 o 



I- 

 o 



I 



5000 



Fig. 28.3. Light curves of water moss Fonlinalis 

 aniipijretica at 23-24° C. for different values of 

 [KHCO3], in white light (after Harder 1921). 1% 

 KHCO3 corresponds to [CO.] = 1.1 X 10 -« mole/1. 



tn 



2.5 

 2.2 



1.9 

 1.6 

 1.3 

 1.0 



100 120 



Log r, lux 



Fig. 28.-4. Light curves of the water plant Cabomba caroliniaiia for various [CO2] 

 values (left) (after Smith 1938). Warburg buffers, white light, 25.3° C. In the right- 

 hand figure log P is plotted against log /. Ordinates are correct only for the uppermost 

 curve; others have been displaced downward in steps of 0.2 log unit each, with correct 

 positions given at right of figure. Parameters are buffer numbers (Table 8.V and foot- 

 note o, p. 969). Left abscissa, klux. 



