46e 



PLANT PHYSIOLOGY 



Biuret reaction, 51 

 Blackman, 84, 94, 101, 122 

 Blackmail's reaction, 187, 204 

 Bleeding of plants, 284 

 Blooming, 410 

 Bog soils, 377-378 

 Bog toxins, 376 

 bogdanov, 290 

 Bonnier, 84, 135 

 Borodin, 84, 93 

 BosE, 119, 336 

 bourquelot, 64 

 boussingault, 73 

 Boysen-Jensen, 124, 197 

 Briggs, 290 

 Brown, 190 

 Browner, 149 

 Brownov, 373 



BUCHNER, 98 



Budding, 404 



Buds, dormant, 396-397, 401 



Buffer action of solutions, 272 



BUTKEVITCH, 262 



C 



Cacti, 366 



Calciophiles and calciophobes, 268 



Callus, 321, 401, 415 



Cambial cell, 342 



Candolle, De, 154 



Cannizzaro, 102 



Capillary water in the soil, 288 



Carbon dioxide content of the air, 



201 

 Carbon dioxide cycle in nature, 201- 



203 

 Carbohydrases, 68 

 Carbohydrates, reserve, 36-45 

 Carboxylases, 100 

 Cardinal points, of enzymes, 66 



of germination of seeds, 129 



of growth, 129 



of photosynthesis, 204 



of respiration, 92 

 Carotene, 168, 171-173 

 Catalase, 101, 188 

 <^atalysts, 61 



Cations of heavy metals, toxicity of, 

 141 



Cellulose, 9, 45-46 



Centrifugal force, 147-148 



Chemical composition, of grain de- 

 pendent on climate, 359-361 

 of protoplasm, 34-37 



Chemical processes during photo- 

 synthesis, 184-186 



Chemistry, of alcoholic fermenta- 

 tion, 101-102 

 of respiration, 84-86, 89-9i 



Chemosynthesis, 181 



Chemotropism, 155-157 



Chimeras, 403 



Chlorophyll, 167 



Chloroplasts, 168-169 



Chlorosis, 173-175 



Cholodny, 125-127, 149 



Chromogens, respiratory, 104 



Citric acid, 49 



Classification, of enzymes, 66 

 of protein substances, 54 



Clinostat, 146 



Coagulation, 6, 28, 352 



Coefficient, wilting, 289 



Coenzymes, 67 



Cohesion theory, 332 



Cold resistance of plants, 355-358 



Combes, 195 



Compensation point, 197-201 



Compression of vessels during ascent 

 of water, 332-334 



Concentration of hydrogen ions, 257, 

 352 



Conditions of chlorophyll formation, 

 168-169 



Constitutional proteins, 29 



Content of sugar in overvvirtering 

 plants, 353 



Critical period, 373 



Crone's solution, 257 



Cultures, in electric light, 198-201 

 pot, method of, 258-262 

 water, 251-254 



Cuticle, 189, 304, 385 



Cuticular transpiration, 303-305 



Cuttings, 399 



