Table VIII. Ajuga reptans. 



AT« 



JNr. 



Date 



Area of leaf in square 

 centimeters (upper + 

 lower surface) 



Rate of air current 

 in minutes for 1 1 



CO2 in air in mg per 1 



Mean CO2 content of 

 air in the receiver 



Tempe- 

 rature 



CO2 absorbed per 

 hour per 50 cm 2 of the 

 upper surf. + 50 cm 2 



of the lower surf. 



CO2 absorbed corr. 

 for temperature and 

 CO2 content 



Intensity of light 

 (Bunsen's units) 



Size of stomatal 

 openings 



1 



23 / 7 13 



100.0 



35 



0.62 



0.47 



20° 



0.5 



0.6 



9.0 





o 



L 





100.0 



32 



0.62 



0.50 



ZU 



0.5 



0.6 



1.8 





3 





100.0 



31 



0.62 



0.55 



21° 



0.3 



0.3 



0.2 





4 



» 



100.0 



32 



0.62 



0.67 



21° 



-v-0.2 



-f-0.2 



0 





5 



2 / 8 14 



38.0 



29 



0.64 



0.56 



24° 



0.9 



0.7 



14.0 





6 



» 



38.0 



29 



0.64 



0.59 



24° 



0.5 



0.4 



1.0 





7 



» 



38.0 



29 



0.64 



0.64 



24° 



0 



0 



0 





8 



3 /s 14 



64.0 



29 



0.65 



0.52 



22° 



0.8 



0.7 



6.6 



1 



9 



» 



64.0 



29 



0.65 



0.61 



23° 



0.3 



0.2 



0.2 



1 



10 



» 



64.0 



29 



0.65 



0.69 



23° 



-T-0.3 



■v-0.3 



0 



1 



Contents. 



1. Introduction 219 



2. Methodic 221 



1. Estimation of the intensity of C0 2 assimilation 221 



2. Estimation of the intensity of light 231 



3. Estimation of the respiration 234 



4. Estimation of the amount of dry matter 235 



5. Direct estimations of the production of matter 235 



3. Earlier experiments on the influence of light on the G0 2 assimilation 236 



4. The production of matter in light plants 238 



5. The production of matter in shadow plants 248 



6. Summary 250 



List of the literature 251 



Tables 253 



