44 PLANT PHYSIOLOGY 



16. What is chlorosis? Why is it objectionable? How may it be remedied? 

 How does it differ from albinism? 



17. Discuss Liebig's law of the minimum with special reference to photo- 

 synthesis. 



REFERENCES 



Bolas, B. D., and Henderson, F. Y. — The effect of increased atmospheric 



carbon dioxide on the growth of plants. Ann. Bot., 42:509, 1928. 

 Dastur, R. — Water content, a factor in photosynthesis. Ann. Bot., 38:779, 



1924. 

 Harvey, E. N. — Photosynthesis in the absence of oxygen. Plant. Physiol., 



3:85, 1928. 

 Osterhout, W. J. V., and Haas, A. R. C. — The temperature coefficient of 



photosynthesis. Jour. Gen. Physiol., 1:295, 1918. 

 Sayre, J. D. — The development of chlorophyll in seedlings in different ranges 



of wave lengths of light. Plant Physiol., 3:71, 1928. 

 Shull, C. A. — A spectrophotometric study of reflection of light from leaf 



surfaces. Bot. Gaz., 87:583, 1927. 

 Spoehr, H. A. — Photosynthesis, Chemical Catalog Co. New York. 1926. 

 White, H. L. — Carbon dioxide in relation to glasshouse crops. Ann. Appl. 



Biol, 17:755, 1930. 

 Winkler, A. J. — The relation of number of leaves to size and quality of table 



grapes. Proc. Amer. Soc. Hort. Sci., 27:158, 1930 (1931). 

 Wood, J. G. — Relation between water content and amount of photosynthesis. 



Austr. Jour. Exp. Biol. & Med. Sci., 6:127, 1929. 



