REVIEW QUESTIONS 407 



What are some of its close relatives among our cultivated crops ? 

 Based upon the time of seeding, what groups of wheat are found 

 in the United States ? 



III. Compare the roots of wheat with those of corn with 

 respect to extent of development, location in soil, depth of 

 penetration and size. 



IV. Describe the appearance of the wheat plant during the 

 early stages of growth. Where does growth take place resulting 

 in the elongation of the stem ? What is stooling, and upon what 

 conditions does it depend ? What is the proportion of grain to 

 straw ? What influences have fertilizers upon this ratio ? 



V. Draw on the board a spikelet of wheat showing all of the 

 parts in their relative positions. How many spikelets grow 

 from each joint of the rachis ? What factors influence the num- 

 ber of spikelets per head? What is a sterile flower? Sterile 

 spikelet? What are the common shapes of wheat heads? 

 Are they variety characteristics or due to soil and climate ? 



VI. Compare the flowers of wheat with those of the corn 

 plant. Is wheat cross-pollinated ? Draw a longitudinal sec- 

 tion of a wheat kernel showing the position of parts. What 

 becomes of each part in the making of flour ? 



VII. Give the characteristics of each type of wheat. Give 

 their distribution and uses. 



VIII. Tell the story of the evolution of the flour mill. De- 

 scribe briefly the process of modern milling, giving the various 

 products resulting therefrom. What are the different grades 

 of flour, and what determines them? Discuss the quality of 

 bread made from the different bread wheats. What are the 

 characteristics of a good bread wheat ? 



IX. What countries are the principal contributors to the 

 world's wheat crop ? What regions in the United States produce 

 large amounts? How does the yield per acre of wheat in the 

 United States compare with that secured in other lands ? Why 

 does the world at large manifest so much interest in the wheat 

 crop ? What can you say of the relation of production to con- 

 sumption of wheat in the world to-day? What of the future? 

 What bread-eating nations produce more wheat than they con- 

 sume ? Which are forced to import wheat to meet their needs ? 



X. Name the wheat districts of the United States, and de- 



