406 REVIEW QUESTIONS 



VIII. Upon what factors does the rate of planting depend ? 

 How does the corn plant adapt itself to a given rate of planting ? 

 What factors must be considered in determining whether to drill 

 or hill the corn ? 



IX. What is the purpose of cultivation ? Under what condi- 

 tions may the weeder or harrow be useful in the cultivation of 

 corn? Discuss deep versus shallow cultivation. Upon what 

 does the frequency of cultivation depend ? 



X. What different methods are employed in harvesting the 

 corn crop in the United States? When should corn be cut for 

 the shock ? For the silo ? Do you think " hogging off " of corn 

 is a good method of harvesting ? 



XI. About how much moisture is there in ear corn at harvest 

 time? A year after harvesting? Upon what factors does the 

 amount of moisture depend? When is there the greatest 

 shrinkage of corn in store? What sort qf storage should be 

 provided for ear corn ? 



XII. In what two ways may the production of corn be in- 

 creased? Which do you consider the more important? How 

 would you conduct a variety test ? What is the practical value of 

 it ? Is it a good practice to import seed corn from other states ? 



XIII. What methods of seed selection are now in practice ? 

 Which is the best method ? Why ? What objections are there 

 to the other methods ? 



XIV. What is an ear-to-row test? Upon what fact is it 

 based? How would you conduct such a test? What factors 

 may influence the value of the test ? What is the use of the 

 check rows? Why does one not select seed corn from the ear- 

 to-row test ? 



XV. What is a breeding plot, and how is it conducted ? 

 What is a multiplying plot ? What are the practical advantages 

 of a corn show ? 



XVI. Give the life history and methods of controlling the 

 insect enemies of corn. The fungous diseases. 



CHAPTER V 



I. Discuss the antiquity of wheat. What can you say as to 

 its usefulness to man in early days of civilization ? 



II. What are the distinctive botanical characteristics of wheat ? 



